Finish some more advanced mangadex delegation features, more to come later

app/build.gradle

@@ -7,6 +7,7 @@ apply plugin: 'com.mikepenz.aboutlibraries.plugin'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
+apply plugin: 'kotlinx-serialization'
 apply plugin: 'com.github.zellius.shortcut-helper'
 // Realm (EH)
 apply plugin: 'realm-android'
@@ -292,6 +293,10 @@ dependencies {
 
     implementation "org.jetbrains.kotlin:kotlin-reflect:$BuildPluginsVersion.KOTLIN"
 
+    // SY for mangadex utils
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-core:1.0.0-RC"
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-protobuf:1.0.0-RC"
+
 
     final coroutines_version = '1.3.9'
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"

app/src/main/AndroidManifest.xml

@@ -282,7 +282,7 @@
                     android:scheme="https" />
 
                 <!-- MangaDex -->
-<!--                <data
+                <data
                     android:host="mangadex.org"
                     android:pathPattern="\/(title|manga)\/"
                     android:scheme="http" />
@@ -297,7 +297,7 @@
                 <data
                     android:host="www.mangadex.org"
                     android:pathPattern="\/(title|manga)\/"
-                    android:scheme="https" />-->
+                    android:scheme="https" />
             </intent-filter>
         </activity>
         <activity

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt

@@ -286,4 +286,6 @@ object PreferenceKeys {
     const val groupLibraryUpdateType = "group_library_update_type"
 
     const val useNewSourceNavigation = "use_new_source_navigation"
+
+    const val mangaDexLowQualityCovers = "manga_dex_low_quality_covers"
 }

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -391,4 +391,6 @@ class PreferencesHelper(val context: Context) {
     fun groupLibraryUpdateType() = flowPrefs.getEnum(Keys.groupLibraryUpdateType, Values.GroupLibraryMode.GLOBAL)
 
     fun useNewSourceNavigation() = flowPrefs.getBoolean(Keys.useNewSourceNavigation, false)
+
+    fun mangaDexLowQualityCovers() = flowPrefs.getBoolean(Keys.mangaDexLowQualityCovers, false)
 }

app/src/main/java/eu/kanade/tachiyomi/data/track/TrackManager.kt

@@ -16,6 +16,10 @@ class TrackManager(context: Context) {
         const val SHIKIMORI = 4
         const val BANGUMI = 5
 
+        // SY --> Mangadex from Neko todo
+        const val MDLIST = 60
+        // SY <--
+
         // SY -->
         const val READING = 1
         const val REREADING = 2

app/src/main/java/eu/kanade/tachiyomi/source/model/SManga.kt

@@ -75,6 +75,11 @@ interface SManga : Serializable {
         const val ONGOING = 1
         const val COMPLETED = 2
         const val LICENSED = 3
+        // SY --> Mangadex specific statuses
+        const val PUBLICATION_COMPLETE = 61
+        const val CANCELLED = 62
+        const val HIATUS = 63
+        // SY <--
 
         fun create(): SManga {
             return SMangaImpl()

app/src/main/java/eu/kanade/tachiyomi/source/online/all/MangaDex.kt

@@ -2,19 +2,44 @@ package eu.kanade.tachiyomi.source.online.all
 
 import android.content.Context
 import android.net.Uri
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservableSuccess
 import eu.kanade.tachiyomi.source.model.FilterList
 import eu.kanade.tachiyomi.source.model.MangasPage
+import eu.kanade.tachiyomi.source.model.Page
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
 import eu.kanade.tachiyomi.source.online.HttpSource
+import eu.kanade.tachiyomi.source.online.MetadataSource
 import eu.kanade.tachiyomi.source.online.UrlImportableSource
+import eu.kanade.tachiyomi.ui.manga.MangaController
+import exh.md.handlers.ApiChapterParser
+import exh.md.handlers.ApiMangaParser
+import exh.md.handlers.MangaHandler
+import exh.md.handlers.MangaPlusHandler
+import exh.md.utils.MdLang
+import exh.md.utils.MdUtil
+import exh.metadata.metadata.MangaDexSearchMetadata
 import exh.source.DelegatedHttpSource
+import exh.ui.metadata.adapters.MangaDexDescriptionAdapter
 import exh.util.urlImportFetchSearchManga
+import kotlin.reflect.KClass
+import kotlinx.serialization.ExperimentalSerializationApi
+import okhttp3.CacheControl
+import okhttp3.Request
+import okhttp3.Response
 import rx.Observable
 
 class MangaDex(delegate: HttpSource, val context: Context) :
     DelegatedHttpSource(delegate),
+    MetadataSource<MangaDexSearchMetadata, Response>,
     UrlImportableSource {
     override val lang: String = delegate.lang
 
+    private val mdLang by lazy {
+        MdLang.values().find { it.lang == lang }?.dexLang ?: lang
+    }
+
     override val matchingHosts: List<String> = listOf("mangadex.org", "www.mangadex.org")
 
     override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> =
@@ -31,4 +56,46 @@ class MangaDex(delegate: HttpSource, val context: Context) :
             null
         }
     }
+
+    override fun fetchMangaDetails(manga: SManga): Observable<SManga> {
+        return MangaHandler(client, headers, listOf(mdLang)).fetchMangaDetailsObservable(manga)
+    }
+
+    override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
+        return MangaHandler(client, headers, listOf(mdLang)).fetchChapterListObservable(manga)
+    }
+
+    @ExperimentalSerializationApi
+    override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
+        return if (chapter.scanlator == "MangaPlus") {
+            client.newCall(mangaPlusPageListRequest(chapter))
+                .asObservableSuccess()
+                .map { response ->
+                    val chapterId = ApiChapterParser().externalParse(response)
+                    MangaPlusHandler(client).fetchPageList(chapterId)
+                }
+        } else super.fetchPageList(chapter)
+    }
+
+    private fun mangaPlusPageListRequest(chapter: SChapter): Request {
+        val chpUrl = chapter.url.substringBefore(MdUtil.apiChapterSuffix)
+        return GET(MdUtil.baseUrl + chpUrl + MdUtil.apiChapterSuffix, headers, CacheControl.FORCE_NETWORK)
+    }
+
+    override fun fetchImage(page: Page): Observable<Response> {
+        return if (page.imageUrl!!.contains("mangaplus", true)) {
+            MangaPlusHandler(network.client).client.newCall(GET(page.imageUrl!!, headers))
+                .asObservableSuccess()
+        } else super.fetchImage(page)
+    }
+
+    override val metaClass: KClass<MangaDexSearchMetadata> = MangaDexSearchMetadata::class
+
+    override fun getDescriptionAdapter(controller: MangaController): MangaDexDescriptionAdapter {
+        return MangaDexDescriptionAdapter(controller)
+    }
+
+    override fun parseIntoMetadata(metadata: MangaDexSearchMetadata, input: Response) {
+        ApiMangaParser(listOf(mdLang)).parseIntoMetadata(metadata, input)
+    }
 }

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt

@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.ui.manga
 import android.content.Context
 import android.net.Uri
 import android.os.Bundle
+import com.elvishew.xlog.XLog
 import com.google.gson.Gson
 import com.jakewharton.rxrelay.BehaviorRelay
 import com.jakewharton.rxrelay.PublishRelay
@@ -118,7 +119,7 @@ class MangaPresenter(
 
         // SY -->
         if (manga.initialized && source.isMetadataSource()) {
-            getMangaMetaObservable().subscribeLatestCache({ view, flatMetadata -> if (flatMetadata != null) view.onNextMetaInfo(flatMetadata) else Timber.d("Invalid metadata") })
+            getMangaMetaObservable().subscribeLatestCache({ view, flatMetadata -> if (flatMetadata != null) view.onNextMetaInfo(flatMetadata) else XLog.d("Invalid metadata") })
         }
         // SY <--
 
@@ -236,7 +237,7 @@ class MangaPresenter(
             // SY -->
             .doOnNext {
                 if (source is MetadataSource<*, *> || (source is EnhancedHttpSource && source.enhancedSource is MetadataSource<*, *>)) {
-                    getMangaMetaObservable().subscribeLatestCache({ view, flatMetadata -> if (flatMetadata != null) view.onNextMetaInfo(flatMetadata) else Timber.d("Invalid metadata") })
+                    getMangaMetaObservable().subscribeLatestCache({ view, flatMetadata -> if (flatMetadata != null) view.onNextMetaInfo(flatMetadata) else XLog.d("Invalid metadata") })
                 }
             }
             // SY <--

app/src/main/java/eu/kanade/tachiyomi/ui/manga/info/MangaInfoHeaderAdapter.kt

@@ -275,6 +275,11 @@ class MangaInfoHeaderAdapter(
                     SManga.ONGOING -> R.string.ongoing
                     SManga.COMPLETED -> R.string.completed
                     SManga.LICENSED -> R.string.licensed
+                    // SY --> Mangadex specific statuses
+                    SManga.HIATUS -> R.string.hiatus
+                    SManga.PUBLICATION_COMPLETE -> R.string.publication_complete
+                    SManga.CANCELLED -> R.string.cancelled
+                    // SY <--
                     else -> R.string.unknown_status
                 }
             )

app/src/main/java/exh/md/handlers/ApiChapterParser.kt

@@ -0,0 +1,34 @@
+package exh.md.handlers
+
+import com.github.salomonbrys.kotson.string
+import com.google.gson.JsonParser
+import eu.kanade.tachiyomi.source.model.Page
+import java.util.Date
+import okhttp3.Response
+
+class ApiChapterParser {
+    fun pageListParse(response: Response): List<Page> {
+        val jsonData = response.body!!.string()
+        val json = JsonParser.parseString(jsonData).asJsonObject
+
+        val pages = mutableListOf<Page>()
+
+        val hash = json.get("hash").string
+        val pageArray = json.getAsJsonArray("page_array")
+        val server = json.get("server").string
+
+        pageArray.forEach {
+            val url = "$hash/${it.asString}"
+            pages.add(Page(pages.size, "$server,${response.request.url},${Date().time}", url))
+        }
+
+        return pages
+    }
+
+    fun externalParse(response: Response): String {
+        val jsonData = response.body!!.string()
+        val json = JsonParser.parseString(jsonData).asJsonObject
+        val external = json.get("external").string
+        return external.substringAfterLast("/")
+    }
+}

app/src/main/java/exh/md/handlers/ApiMangaParser.kt

@@ -0,0 +1,301 @@
+package exh.md.handlers
+
+import com.elvishew.xlog.XLog
+import com.github.salomonbrys.kotson.nullInt
+import com.github.salomonbrys.kotson.obj
+import com.google.gson.JsonParser
+import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.util.asJsoup
+import exh.md.handlers.serializers.ApiMangaSerializer
+import exh.md.handlers.serializers.ChapterSerializer
+import exh.md.utils.MdLang
+import exh.md.utils.MdUtil
+import exh.metadata.metadata.MangaDexSearchMetadata
+import exh.metadata.metadata.base.RaisedTag
+import exh.metadata.metadata.base.getFlatMetadataForManga
+import exh.metadata.metadata.base.insertFlatMetadata
+import java.util.Date
+import kotlin.math.floor
+import okhttp3.Response
+import rx.Completable
+import rx.Single
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+
+class ApiMangaParser(val langs: List<String>) {
+    val db: DatabaseHelper get() = Injekt.get()
+
+    val metaClass = MangaDexSearchMetadata::class
+    /**
+     * Use reflection to create a new instance of metadata
+     */
+    private fun newMetaInstance() = metaClass.constructors.find {
+        it.parameters.isEmpty()
+    }?.call()
+        ?: error("Could not find no-args constructor for meta class: ${metaClass.qualifiedName}!")
+    /**
+     * Parses metadata from the input and then copies it into the manga
+     *
+     * Will also save the metadata to the DB if possible
+     */
+    fun parseToManga(manga: SManga, input: Response): Completable {
+        val mangaId = (manga as? Manga)?.id
+        val metaObservable = if (mangaId != null) {
+            // We have to use fromCallable because StorIO messes up the thread scheduling if we use their rx functions
+            Single.fromCallable {
+                db.getFlatMetadataForManga(mangaId).executeAsBlocking()
+            }.map {
+                it?.raise(metaClass) ?: newMetaInstance()
+            }
+        } else {
+            Single.just(newMetaInstance())
+        }
+
+        return metaObservable.map {
+            parseIntoMetadata(it, input)
+            it.copyTo(manga)
+            it
+        }.flatMapCompletable {
+            if (mangaId != null) {
+                it.mangaId = mangaId
+                db.insertFlatMetadata(it.flatten())
+            } else Completable.complete()
+        }
+    }
+
+    fun parseIntoMetadata(metadata: MangaDexSearchMetadata, input: Response) {
+        with(metadata) {
+            try {
+                val networkApiManga = MdUtil.jsonParser.decodeFromString(ApiMangaSerializer.serializer(), input.body!!.string())
+                val networkManga = networkApiManga.manga
+                mdId = MdUtil.getMangaId(input.request.url.toString())
+                mdUrl = input.request.url.toString()
+                title = MdUtil.cleanString(networkManga.title)
+                thumbnail_url = MdUtil.cdnUrl + MdUtil.removeTimeParamUrl(networkManga.cover_url)
+                description = MdUtil.cleanDescription(networkManga.description)
+                author = MdUtil.cleanString(networkManga.author)
+                artist = MdUtil.cleanString(networkManga.artist)
+                lang_flag = networkManga.lang_flag
+                val lastChapter = networkManga.last_chapter?.toFloatOrNull()
+                lastChapter?.let {
+                    last_chapter_number = floor(it).toInt()
+                }
+
+                networkManga.rating?.let {
+                    rating = it.bayesian ?: it.mean
+                    users = it.users
+                }
+                networkManga.links?.let { links ->
+                    links.al?.let { anilist_id = it }
+                    links.kt?.let { kitsu_id = it }
+                    links.mal?.let { my_anime_list_id = it }
+                    links.mu?.let { manga_updates_id = it }
+                    links.ap?.let { anime_planet_id = it }
+                }
+                val filteredChapters = filterChapterForChecking(networkApiManga)
+
+                val tempStatus = parseStatus(networkManga.status)
+                val publishedOrCancelled =
+                    tempStatus == SManga.PUBLICATION_COMPLETE || tempStatus == SManga.CANCELLED
+                if (publishedOrCancelled && isMangaCompleted(networkApiManga, filteredChapters)) {
+                    status = SManga.COMPLETED
+                    missing_chapters = null
+                } else {
+                    status = tempStatus
+                }
+
+                val genres =
+                    networkManga.genres.mapNotNull { FilterHandler.allTypes[it.toString()] }
+                        .toMutableList()
+
+                if (networkManga.hentai == 1) {
+                    genres.add("Hentai")
+                }
+
+                if (tags.size != 0) tags.clear()
+                tags += genres.map { RaisedTag(null, it, MangaDexSearchMetadata.TAG_TYPE_DEFAULT) }
+            } catch (e: Exception) {
+                XLog.e(e)
+                throw e
+            }
+        }
+    }
+
+    /**
+     * If chapter title is oneshot or a chapter exists which matches the last chapter in the required language
+     * return manga is complete
+     */
+    private fun isMangaCompleted(
+        serializer: ApiMangaSerializer,
+        filteredChapters: List<Map.Entry<String, ChapterSerializer>>
+    ): Boolean {
+        if (filteredChapters.isEmpty() || serializer.manga.last_chapter.isNullOrEmpty()) {
+            return false
+        }
+        val finalChapterNumber = serializer.manga.last_chapter!!
+        if (MdUtil.validOneShotFinalChapters.contains(finalChapterNumber)) {
+            filteredChapters.firstOrNull()?.let {
+                if (isOneShot(it.value, finalChapterNumber)) {
+                    return true
+                }
+            }
+        }
+        val removeOneshots = filteredChapters.filter { !it.value.chapter.isNullOrBlank() }
+        return removeOneshots.size.toString() == floor(finalChapterNumber.toDouble()).toInt().toString()
+    }
+
+    private fun filterChapterForChecking(serializer: ApiMangaSerializer): List<Map.Entry<String, ChapterSerializer>> {
+        serializer.chapter ?: return emptyList()
+        return serializer.chapter.entries
+            .filter { langs.contains(it.value.lang_code) }
+            .filter {
+                it.value.chapter?.let { chapterNumber ->
+                    if (chapterNumber.toIntOrNull() == null) {
+                        return@filter false
+                    }
+                    return@filter true
+                }
+                return@filter false
+            }.distinctBy { it.value.chapter }
+    }
+
+    private fun isOneShot(chapter: ChapterSerializer, finalChapterNumber: String): Boolean {
+        return chapter.title.equals("oneshot", true) ||
+            ((chapter.chapter.isNullOrEmpty() || chapter.chapter == "0") && MdUtil.validOneShotFinalChapters.contains(finalChapterNumber))
+    }
+
+    private fun parseStatus(status: Int) = when (status) {
+        1 -> SManga.ONGOING
+        2 -> SManga.PUBLICATION_COMPLETE
+        3 -> SManga.CANCELLED
+        4 -> SManga.HIATUS
+        else -> SManga.UNKNOWN
+    }
+
+    /**
+     * Parse for the random manga id from the [MdUtil.randMangaPage] response.
+     */
+    fun randomMangaIdParse(response: Response): String {
+        val randMangaUrl = response.asJsoup()
+            .select("link[rel=canonical]")
+            .attr("href")
+        return MdUtil.getMangaId(randMangaUrl)
+    }
+
+    fun chapterListParse(response: Response): List<SChapter> {
+        return chapterListParse(response.body!!.string())
+    }
+
+    fun chapterListParse(jsonData: String): List<SChapter> {
+        val now = Date().time
+        val networkApiManga =
+            MdUtil.jsonParser.decodeFromString(ApiMangaSerializer.serializer(), jsonData)
+        val networkManga = networkApiManga.manga
+        val networkChapters = networkApiManga.chapter
+        if (networkChapters.isNullOrEmpty()) {
+            return listOf()
+        }
+        val status = networkManga.status
+
+        val finalChapterNumber = networkManga.last_chapter!!
+
+        val chapters = mutableListOf<SChapter>()
+
+        // Skip chapters that don't match the desired language, or are future releases
+
+        val chapLangs = MdLang.values().filter { langs.contains(it.dexLang) }
+        networkChapters.filter { langs.contains(it.value.lang_code) && (it.value.timestamp * 1000) <= now }
+            .mapTo(chapters) { mapChapter(it.key, it.value, finalChapterNumber, status, chapLangs, networkChapters.size) }
+
+        return chapters
+    }
+
+    fun chapterParseForMangaId(response: Response): Int {
+        try {
+            if (response.code != 200) throw Exception("HTTP error ${response.code}")
+            val body = response.body?.string().orEmpty()
+            if (body.isEmpty()) {
+                throw Exception("Null Response")
+            }
+
+            val jsonObject = JsonParser.parseString(body).obj
+            return jsonObject["manga_id"]?.nullInt ?: throw Exception("No manga associated with chapter")
+        } catch (e: Exception) {
+            XLog.e(e)
+            throw e
+        }
+    }
+
+    private fun mapChapter(
+        chapterId: String,
+        networkChapter: ChapterSerializer,
+        finalChapterNumber: String,
+        status: Int,
+        chapLangs: List<MdLang>,
+        totalChapterCount: Int
+    ): SChapter {
+        val chapter = SChapter.create()
+        chapter.url = MdUtil.apiChapter + chapterId
+        val chapterName = mutableListOf<String>()
+        // Build chapter name
+
+        if (!networkChapter.volume.isNullOrBlank()) {
+            val vol = "Vol." + networkChapter.volume
+            chapterName.add(vol)
+            // todo
+            // chapter.vol = vol
+        }
+
+        if (!networkChapter.chapter.isNullOrBlank()) {
+            val chp = "Ch." + networkChapter.chapter
+            chapterName.add(chp)
+            // chapter.chapter_txt = chp
+        }
+        if (!networkChapter.title.isNullOrBlank()) {
+            if (chapterName.isNotEmpty()) {
+                chapterName.add("-")
+            }
+            // todo
+            chapterName.add(networkChapter.title)
+            // chapter.chapter_title = MdUtil.cleanString(networkChapter.title)
+        }
+
+        // if volume, chapter and title is empty its a oneshot
+        if (chapterName.isEmpty()) {
+            chapterName.add("Oneshot")
+        }
+        if ((status == 2 || status == 3)) {
+            if ((isOneShot(networkChapter, finalChapterNumber) && totalChapterCount == 1) ||
+                networkChapter.chapter == finalChapterNumber
+            ) {
+                chapterName.add("[END]")
+            }
+        }
+
+        chapter.name = MdUtil.cleanString(chapterName.joinToString(" "))
+        // Convert from unix time
+        chapter.date_upload = networkChapter.timestamp * 1000
+        val scanlatorName = mutableSetOf<String>()
+
+        networkChapter.group_name?.let {
+            scanlatorName.add(it)
+        }
+        networkChapter.group_name_2?.let {
+            scanlatorName.add(it)
+        }
+        networkChapter.group_name_3?.let {
+            scanlatorName.add(it)
+        }
+
+        chapter.scanlator = MdUtil.cleanString(MdUtil.getScanlatorString(scanlatorName))
+
+        // chapter.mangadex_chapter_id = MdUtil.getChapterId(chapter.url)
+
+        // chapter.language = chapLangs.firstOrNull { it.dexLang == networkChapter.lang_code }?.name
+
+        return chapter
+    }
+}

app/src/main/java/exh/md/handlers/CoverHandler.kt

@@ -0,0 +1,26 @@
+package exh.md.handlers
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.SManga
+import exh.md.handlers.serializers.CoversResult
+import exh.md.utils.MdUtil
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.CacheControl
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+
+// Unused, look into what its used for todo
+class CoverHandler(val client: OkHttpClient, val headers: Headers) {
+
+    suspend fun getCovers(manga: SManga): List<String> {
+        return withContext(Dispatchers.IO) {
+            val response = client.newCall(GET("${MdUtil.baseUrl}${MdUtil.coversApi}${MdUtil.getMangaId(manga.url)}", headers, CacheControl.FORCE_NETWORK)).execute()
+            val result = MdUtil.jsonParser.decodeFromString(
+                CoversResult.serializer(),
+                response.body!!.string()
+            )
+            result.covers.map { "${MdUtil.baseUrl}$it" }
+        }
+    }
+}

app/src/main/java/exh/md/handlers/FilterHandler.kt

@@ -0,0 +1,179 @@
+package exh.md.handlers
+
+import eu.kanade.tachiyomi.source.model.Filter
+import eu.kanade.tachiyomi.source.model.FilterList
+
+class FilterHandler {
+
+    class TextField(name: String, val key: String) : Filter.Text(name)
+    class Tag(val id: String, name: String) : Filter.TriState(name)
+    class Switch(val id: String, name: String) : Filter.CheckBox(name)
+    class ContentList(contents: List<Tag>) : Filter.Group<Tag>("Content", contents)
+    class FormatList(formats: List<Tag>) : Filter.Group<Tag>("Format", formats)
+    class GenreList(genres: List<Tag>) : Filter.Group<Tag>("Genres", genres)
+    class PublicationStatusList(statuses: List<Switch>) : Filter.Group<Switch>("Publication Status", statuses)
+    class DemographicList(demographics: List<Switch>) : Filter.Group<Switch>("Demographic", demographics)
+
+    class R18 : Filter.Select<String>("R18+", arrayOf("Default", "Show all", "Show only", "Show none"))
+    class ThemeList(themes: List<Tag>) : Filter.Group<Tag>("Themes", themes)
+    class TagInclusionMode : Filter.Select<String>("Tag inclusion", arrayOf("All (and)", "Any (or)"), 0)
+    class TagExclusionMode : Filter.Select<String>("Tag exclusion", arrayOf("All (and)", "Any (or)"), 1)
+
+    class SortFilter : Filter.Sort(
+        "Sort",
+        sortables().map { it.first }.toTypedArray(),
+        Selection(0, false)
+    )
+
+    class OriginalLanguage : Filter.Select<String>("Original Language", sourceLang().map { it.first }.toTypedArray())
+
+    fun getFilterList() = FilterList(
+        TextField("Author", "author"),
+        TextField("Artist", "artist"),
+        R18(),
+        SortFilter(),
+        DemographicList(demographics()),
+        PublicationStatusList(publicationStatus()),
+        OriginalLanguage(),
+        ContentList(contentType()),
+        FormatList(formats()),
+        GenreList(genre()),
+        ThemeList(themes()),
+        TagInclusionMode(),
+        TagExclusionMode()
+    )
+
+    companion object {
+        fun demographics() = listOf(
+            Switch("1", "Shounen"),
+            Switch("2", "Shoujo"),
+            Switch("3", "Seinen"),
+            Switch("4", "Josei")
+        )
+
+        fun publicationStatus() = listOf(
+            Switch("1", "Ongoing"),
+            Switch("2", "Completed"),
+            Switch("3", "Cancelled"),
+            Switch("4", "Hiatus")
+        )
+
+        fun sortables() = listOf(
+            Triple("Update date", 1, 0),
+            Triple("Alphabetically", 2, 3),
+            Triple("Number of comments", 4, 5),
+            Triple("Rating", 6, 7),
+            Triple("Views", 8, 9),
+            Triple("Follows", 10, 11)
+        )
+
+        fun sourceLang() = listOf(
+            Pair("All", "0"),
+            Pair("Japanese", "2"),
+            Pair("English", "1"),
+            Pair("Polish", "3"),
+            Pair("German", "8"),
+            Pair("French", "10"),
+            Pair("Vietnamese", "12"),
+            Pair("Chinese", "21"),
+            Pair("Indonesian", "27"),
+            Pair("Korean", "28"),
+            Pair("Spanish (LATAM)", "29"),
+            Pair("Thai", "32"),
+            Pair("Filipino", "34")
+        )
+
+        fun contentType() = listOf(
+            Tag("9", "Ecchi"),
+            Tag("32", "Smut"),
+            Tag("49", "Gore"),
+            Tag("50", "Sexual Violence")
+        ).sortedWith(compareBy { it.name })
+
+        fun formats() = listOf(
+            Tag("1", "4-koma"),
+            Tag("4", "Award Winning"),
+            Tag("7", "Doujinshi"),
+            Tag("21", "Oneshot"),
+            Tag("36", "Long Strip"),
+            Tag("42", "Adaptation"),
+            Tag("43", "Anthology"),
+            Tag("44", "Web Comic"),
+            Tag("45", "Full Color"),
+            Tag("46", "User Created"),
+            Tag("47", "Official Colored"),
+            Tag("48", "Fan Colored")
+        ).sortedWith(compareBy { it.name })
+
+        fun genre() = listOf(
+            Tag("2", "Action"),
+            Tag("3", "Adventure"),
+            Tag("5", "Comedy"),
+            Tag("8", "Drama"),
+            Tag("10", "Fantasy"),
+            Tag("13", "Historical"),
+            Tag("14", "Horror"),
+            Tag("17", "Mecha"),
+            Tag("18", "Medical"),
+            Tag("20", "Mystery"),
+            Tag("22", "Psychological"),
+            Tag("23", "Romance"),
+            Tag("25", "Sci-Fi"),
+            Tag("28", "Shoujo Ai"),
+            Tag("30", "Shounen Ai"),
+            Tag("31", "Slice of Life"),
+            Tag("33", "Sports"),
+            Tag("35", "Tragedy"),
+            Tag("37", "Yaoi"),
+            Tag("38", "Yuri"),
+            Tag("41", "Isekai"),
+            Tag("51", "Crime"),
+            Tag("52", "Magical Girls"),
+            Tag("53", "Philosophical"),
+            Tag("54", "Superhero"),
+            Tag("55", "Thriller"),
+            Tag("56", "Wuxia")
+        ).sortedWith(compareBy { it.name })
+
+        fun themes() = listOf(
+            Tag("6", "Cooking"),
+            Tag("11", "Gyaru"),
+            Tag("12", "Harem"),
+            Tag("16", "Martial Arts"),
+            Tag("19", "Music"),
+            Tag("24", "School Life"),
+            Tag("34", "Supernatural"),
+            Tag("40", "Video Games"),
+            Tag("57", "Aliens"),
+            Tag("58", "Animals"),
+            Tag("59", "Crossdressing"),
+            Tag("60", "Demons"),
+            Tag("61", "Delinquents"),
+            Tag("62", "Genderswap"),
+            Tag("63", "Ghosts"),
+            Tag("64", "Monster Girls"),
+            Tag("65", "Loli"),
+            Tag("66", "Magic"),
+            Tag("67", "Military"),
+            Tag("68", "Monsters"),
+            Tag("69", "Ninja"),
+            Tag("70", "Office Workers"),
+            Tag("71", "Police"),
+            Tag("72", "Post-Apocalyptic"),
+            Tag("73", "Reincarnation"),
+            Tag("74", "Reverse Harem"),
+            Tag("75", "Samurai"),
+            Tag("76", "Shota"),
+            Tag("77", "Survival"),
+            Tag("78", "Time Travel"),
+            Tag("79", "Vampires"),
+            Tag("80", "Traditional Games"),
+            Tag("81", "Virtual Reality"),
+            Tag("82", "Zombies"),
+            Tag("83", "Incest"),
+            Tag("84", "Mafia")
+        ).sortedWith(compareBy { it.name })
+
+        val allTypes = (contentType() + formats() + genre() + themes()).map { it.id to it.name }.toMap()
+    }
+}

app/src/main/java/exh/md/handlers/FollowsHandler.kt

@@ -0,0 +1,240 @@
+package exh.md.handlers
+
+import com.elvishew.xlog.XLog
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.POST
+import eu.kanade.tachiyomi.network.asObservable
+import eu.kanade.tachiyomi.source.model.MetadataMangasPage
+import eu.kanade.tachiyomi.source.model.SManga
+import exh.md.handlers.serializers.FollowsPageResult
+import exh.md.handlers.serializers.Result
+import exh.md.utils.FollowStatus
+import exh.md.utils.MdUtil
+import exh.md.utils.MdUtil.Companion.baseUrl
+import exh.md.utils.MdUtil.Companion.getMangaId
+import exh.metadata.metadata.MangaDexSearchMetadata
+import kotlin.math.floor
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.CacheControl
+import okhttp3.FormBody
+import okhttp3.Headers
+import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import rx.Observable
+
+// Unused, kept for future featues todo
+class FollowsHandler(val client: OkHttpClient, val headers: Headers, val preferences: PreferencesHelper) {
+
+    /**
+     * fetch follows by page
+     */
+    fun fetchFollows(page: Int): Observable<MetadataMangasPage> {
+        return client.newCall(followsListRequest(page))
+            .asObservable()
+            .map { response ->
+                followsParseMangaPage(response)
+            }
+    }
+
+    /**
+     * Parse follows api to manga page
+     * used when multiple follows
+     */
+    private fun followsParseMangaPage(response: Response, forceHd: Boolean = false): MetadataMangasPage {
+        var followsPageResult: FollowsPageResult? = null
+
+        try {
+            followsPageResult =
+                MdUtil.jsonParser.decodeFromString(
+                    FollowsPageResult.serializer(),
+                    response.body!!.string()
+                )
+        } catch (e: Exception) {
+            XLog.e("error parsing follows", e)
+        }
+        val empty = followsPageResult?.result?.isEmpty()
+
+        if (empty == null || empty) {
+            return MetadataMangasPage(mutableListOf(), false, mutableListOf())
+        }
+        val lowQualityCovers = if (forceHd) false else preferences.mangaDexLowQualityCovers().get()
+
+        val follows = followsPageResult!!.result.map {
+            followFromElement(it, lowQualityCovers)
+        }
+
+        return MetadataMangasPage(follows.map { it.first }, true, follows.map { it.second })
+    }
+
+    /**fetch follow status used when fetching status for 1 manga
+     *
+     */
+
+    private fun followStatusParse(response: Response): Track {
+        var followsPageResult: FollowsPageResult? = null
+
+        try {
+            followsPageResult =
+                MdUtil.jsonParser.decodeFromString(
+                    FollowsPageResult.serializer(),
+                    response.body!!.string()
+                )
+        } catch (e: Exception) {
+            XLog.e("error parsing follows", e)
+        }
+        val track = Track.create(TrackManager.MDLIST)
+        val result = followsPageResult?.result
+        if (result.isNullOrEmpty()) {
+            track.status = FollowStatus.UNFOLLOWED.int
+        } else {
+            val follow = result.first()
+            track.status = follow.follow_type
+            if (result[0].chapter.isNotBlank()) {
+                track.last_chapter_read = floor(follow.chapter.toFloat()).toInt()
+            }
+            track.tracking_url = MdUtil.baseUrl + follow.manga_id.toString()
+            track.title = follow.title
+        }
+        return track
+    }
+
+    /**build Request for follows page
+     *
+     */
+    private fun followsListRequest(page: Int): Request {
+        val url = "${MdUtil.baseUrl}${MdUtil.followsAllApi}".toHttpUrlOrNull()!!.newBuilder()
+            .addQueryParameter("page", page.toString())
+
+        return GET(url.toString(), headers, CacheControl.FORCE_NETWORK)
+    }
+
+    /**
+     * Parse result element  to manga
+     */
+    private fun followFromElement(result: Result, lowQualityCovers: Boolean): Pair<SManga, MangaDexSearchMetadata> {
+        val manga = SManga.create()
+        manga.title = MdUtil.cleanString(result.title)
+        manga.url = "/manga/${result.manga_id}/"
+        manga.thumbnail_url = MdUtil.formThumbUrl(manga.url, lowQualityCovers)
+        return manga to MangaDexSearchMetadata().apply {
+            title = MdUtil.cleanString(result.title)
+            mdUrl = "/manga/${result.manga_id}/"
+            thumbnail_url = MdUtil.formThumbUrl(manga.url, lowQualityCovers)
+            follow_status = FollowStatus.fromInt(result.follow_type)?.ordinal
+        }
+    }
+
+    /**
+     * Change the status of a manga
+     */
+    suspend fun updateFollowStatus(mangaID: String, followStatus: FollowStatus): Boolean {
+        return withContext(Dispatchers.IO) {
+            val response: Response =
+                if (followStatus == FollowStatus.UNFOLLOWED) {
+                    client.newCall(
+                        GET(
+                            "$baseUrl/ajax/actions.ajax.php?function=manga_unfollow&id=$mangaID&type=$mangaID",
+                            headers,
+                            CacheControl.FORCE_NETWORK
+                        )
+                    )
+                        .execute()
+                } else {
+                    val status = followStatus.int
+                    client.newCall(
+                        GET(
+                            "$baseUrl/ajax/actions.ajax.php?function=manga_follow&id=$mangaID&type=$status",
+                            headers,
+                            CacheControl.FORCE_NETWORK
+                        )
+                    )
+                        .execute()
+                }
+
+            response.body!!.string().isEmpty()
+        }
+    }
+
+    suspend fun updateReadingProgress(track: Track): Boolean {
+        return withContext(Dispatchers.IO) {
+            val mangaID = getMangaId(track.tracking_url)
+            val formBody = FormBody.Builder()
+                .add("chapter", track.last_chapter_read.toString())
+            XLog.d("chapter to update %s", track.last_chapter_read.toString())
+            val response = client.newCall(
+                POST(
+                    "$baseUrl/ajax/actions.ajax.php?function=edit_progress&id=$mangaID",
+                    headers,
+                    formBody.build()
+                )
+            ).execute()
+
+            val response2 = client.newCall(
+                GET(
+                    "$baseUrl/ajax/actions.ajax.php?function=manga_rating&id=$mangaID&rating=${track.score.toInt()}",
+                    headers
+                )
+            )
+                .execute()
+
+            response.body!!.string().isEmpty()
+        }
+    }
+
+    suspend fun updateRating(track: Track): Boolean {
+        return withContext(Dispatchers.IO) {
+            val mangaID = getMangaId(track.tracking_url)
+            val response = client.newCall(
+                GET(
+                    "$baseUrl/ajax/actions.ajax.php?function=manga_rating&id=$mangaID&rating=${track.score.toInt()}",
+                    headers
+                )
+            )
+                .execute()
+
+            response.body!!.string().isEmpty()
+        }
+    }
+
+    /**
+     * fetch all manga from all possible pages
+     */
+    suspend fun fetchAllFollows(forceHd: Boolean): List<SManga> {
+        return withContext(Dispatchers.IO) {
+            val listManga = mutableListOf<SManga>()
+            loop@ for (i in 1..10000) {
+                val response = client.newCall(followsListRequest(i))
+                    .execute()
+                val mangasPage = followsParseMangaPage(response, forceHd)
+
+                if (mangasPage.mangas.isNotEmpty()) {
+                    listManga.addAll(mangasPage.mangas)
+                }
+                if (!mangasPage.hasNextPage) {
+                    break@loop
+                }
+            }
+            listManga
+        }
+    }
+
+    suspend fun fetchTrackingInfo(url: String): Track {
+        return withContext(Dispatchers.IO) {
+            val request = GET(
+                "${MdUtil.baseUrl}${MdUtil.followsMangaApi}" + getMangaId(url),
+                headers,
+                CacheControl.FORCE_NETWORK
+            )
+            val response = client.newCall(request).execute()
+            val track = followStatusParse(response)
+
+            track
+        }
+    }
+}

app/src/main/java/exh/md/handlers/MangaHandler.kt

@@ -0,0 +1,102 @@
+package exh.md.handlers
+
+import com.elvishew.xlog.XLog
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservableSuccess
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import exh.md.utils.MdUtil
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import okhttp3.CacheControl
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import rx.Observable
+
+class MangaHandler(val client: OkHttpClient, val headers: Headers, val langs: List<String>) {
+
+    // TODO make use of this
+    suspend fun fetchMangaAndChapterDetails(manga: SManga): Pair<SManga, List<SChapter>> {
+        return withContext(Dispatchers.IO) {
+            val response = client.newCall(apiRequest(manga)).execute()
+            val parser = ApiMangaParser(langs)
+
+            val jsonData = response.body!!.string()
+            if (response.code != 200) {
+                XLog.e("error from MangaDex with response code ${response.code} \n body: \n$jsonData")
+                throw Exception("Error from MangaDex Response code ${response.code} ")
+            }
+
+            parser.parseToManga(manga, response).await()
+            val chapterList = parser.chapterListParse(jsonData)
+            Pair(
+                manga,
+                chapterList
+            )
+        }
+    }
+
+    suspend fun getMangaIdFromChapterId(urlChapterId: String): Int {
+        return withContext(Dispatchers.IO) {
+            val request = GET(MdUtil.baseUrl + MdUtil.apiChapter + urlChapterId + MdUtil.apiChapterSuffix, headers, CacheControl.FORCE_NETWORK)
+            val response = client.newCall(request).execute()
+            ApiMangaParser(langs).chapterParseForMangaId(response)
+        }
+    }
+
+    suspend fun fetchMangaDetails(manga: SManga): SManga {
+        return withContext(Dispatchers.IO) {
+            val response = client.newCall(apiRequest(manga)).execute()
+            ApiMangaParser(langs).parseToManga(manga, response).await()
+            manga.apply {
+                initialized = true
+            }
+        }
+    }
+
+    fun fetchMangaDetailsObservable(manga: SManga): Observable<SManga> {
+        return client.newCall(apiRequest(manga))
+            .asObservableSuccess()
+            .flatMap {
+                ApiMangaParser(langs).parseToManga(manga, it).andThen(
+                    Observable.just(
+                        manga.apply {
+                            initialized = true
+                        }
+                    )
+                )
+            }
+    }
+
+    fun fetchChapterListObservable(manga: SManga): Observable<List<SChapter>> {
+        return client.newCall(apiRequest(manga))
+            .asObservableSuccess()
+            .map { response ->
+                ApiMangaParser(langs).chapterListParse(response)
+            }
+    }
+
+    suspend fun fetchChapterList(manga: SManga): List<SChapter> {
+        return withContext(Dispatchers.IO) {
+            val response = client.newCall(apiRequest(manga)).execute()
+            ApiMangaParser(langs).chapterListParse(response)
+        }
+    }
+
+    fun fetchRandomMangaId(): Observable<String> {
+        return client.newCall(randomMangaRequest())
+            .asObservableSuccess()
+            .map { response ->
+                ApiMangaParser(langs).randomMangaIdParse(response)
+            }
+    }
+
+    private fun randomMangaRequest(): Request {
+        return GET(MdUtil.baseUrl + MdUtil.randMangaPage)
+    }
+
+    private fun apiRequest(manga: SManga): Request {
+        return GET(MdUtil.baseUrl + MdUtil.apiManga + MdUtil.getMangaId(manga.url), headers, CacheControl.FORCE_NETWORK)
+    }
+}

app/src/main/java/exh/md/handlers/MangaPlusHandler.kt

@@ -0,0 +1,105 @@
+package exh.md.handlers
+
+import MangaPlusSerializer
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.source.model.Page
+import java.util.UUID
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.protobuf.ProtoBuf
+import okhttp3.Headers
+import okhttp3.Interceptor
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import okhttp3.ResponseBody.Companion.toResponseBody
+
+class MangaPlusHandler(currentClient: OkHttpClient) {
+    val baseUrl = "https://jumpg-webapi.tokyo-cdn.com/api"
+    val headers = Headers.Builder()
+        .add("Origin", WEB_URL)
+        .add("Referer", WEB_URL)
+        .add("User-Agent", USER_AGENT)
+        .add("SESSION-TOKEN", UUID.randomUUID().toString()).build()
+
+    val client: OkHttpClient = currentClient.newBuilder()
+        .addInterceptor { imageIntercept(it) }
+        .build()
+
+    @ExperimentalSerializationApi
+    fun fetchPageList(chapterId: String): List<Page> {
+        val response = client.newCall(pageListRequest(chapterId)).execute()
+        return pageListParse(response)
+    }
+
+    private fun pageListRequest(chapterId: String): Request {
+        return GET(
+            "$baseUrl/manga_viewer?chapter_id=$chapterId&split=yes&img_quality=high",
+            headers
+        )
+    }
+
+    @ExperimentalSerializationApi
+    private fun pageListParse(response: Response): List<Page> {
+        val result = ProtoBuf.decodeFromByteArray(MangaPlusSerializer, response.body!!.bytes())
+
+        if (result.success == null) {
+            throw Exception("error getting images")
+        }
+
+        return result.success.mangaViewer!!.pages
+            .mapNotNull { it.page }
+            .mapIndexed { i, page ->
+                val encryptionKey =
+                    if (page.encryptionKey == null) "" else "&encryptionKey=${page.encryptionKey}"
+                Page(i, "", "${page.imageUrl}$encryptionKey")
+            }
+    }
+
+    private fun imageIntercept(chain: Interceptor.Chain): Response {
+        var request = chain.request()
+
+        if (!request.url.queryParameterNames.contains("encryptionKey")) {
+            return chain.proceed(request)
+        }
+
+        val encryptionKey = request.url.queryParameter("encryptionKey")!!
+
+        // Change the url and remove the encryptionKey to avoid detection.
+        val newUrl = request.url.newBuilder().removeAllQueryParameters("encryptionKey").build()
+        request = request.newBuilder().url(newUrl).build()
+
+        val response = chain.proceed(request)
+
+        val image = decodeImage(encryptionKey, response.body!!.bytes())
+
+        val body = image.toResponseBody("image/jpeg".toMediaTypeOrNull())
+        return response.newBuilder().body(body).build()
+    }
+
+    private fun decodeImage(encryptionKey: String, image: ByteArray): ByteArray {
+        val keyStream = HEX_GROUP
+            .findAll(encryptionKey)
+            .map { it.groupValues[1].toInt(16) }
+            .toList()
+
+        val content = image
+            .map { it.toInt() }
+            .toMutableList()
+
+        val blockSizeInBytes = keyStream.size
+
+        for ((i, value) in content.iterator().withIndex()) {
+            content[i] = value xor keyStream[i % blockSizeInBytes]
+        }
+
+        return ByteArray(content.size) { pos -> content[pos].toByte() }
+    }
+
+    companion object {
+        private const val WEB_URL = "https://mangaplus.shueisha.co.jp"
+        private const val USER_AGENT =
+            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.92 Safari/537.36"
+        private val HEX_GROUP = "(.{1,2})".toRegex()
+    }
+}

app/src/main/java/exh/md/handlers/PageHandler.kt

@@ -0,0 +1,37 @@
+package exh.md.handlers
+
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservableSuccess
+import eu.kanade.tachiyomi.source.model.Page
+import eu.kanade.tachiyomi.source.model.SChapter
+import exh.md.utils.MdUtil
+import okhttp3.CacheControl
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import rx.Observable
+
+// Unused, kept for reference todo
+class PageHandler(val client: OkHttpClient, val headers: Headers, private val imageServer: String, val dataSaver: String?) {
+
+    fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
+        if (chapter.scanlator.equals("MangaPlus")) {
+            return client.newCall(pageListRequest(chapter))
+                .asObservableSuccess()
+                .map { response ->
+                    val chapterId = ApiChapterParser().externalParse(response)
+                    MangaPlusHandler(client).fetchPageList(chapterId)
+                }
+        }
+        return client.newCall(pageListRequest(chapter))
+            .asObservableSuccess()
+            .map { response ->
+                ApiChapterParser().pageListParse(response)
+            }
+    }
+
+    private fun pageListRequest(chapter: SChapter): Request {
+        val chpUrl = chapter.url.substringBefore(MdUtil.apiChapterSuffix)
+        return GET("${MdUtil.baseUrl}${chpUrl}${MdUtil.apiChapterSuffix}&server=$imageServer&saver=$dataSaver", headers, CacheControl.FORCE_NETWORK)
+    }
+}

app/src/main/java/exh/md/handlers/PopularHandler.kt

@@ -0,0 +1,71 @@
+package exh.md.handlers
+
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservableSuccess
+import eu.kanade.tachiyomi.source.model.MangasPage
+import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.util.asJsoup
+import exh.md.utils.MdUtil
+import exh.md.utils.setMDUrlWithoutDomain
+import okhttp3.CacheControl
+import okhttp3.Headers
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.nodes.Element
+import rx.Observable
+import uy.kohesive.injekt.injectLazy
+
+// Unused, kept for reference todo
+/**
+ * Returns the latest manga from the updates url since it actually respects the users settings
+ */
+class PopularHandler(val client: OkHttpClient, private val headers: Headers) {
+
+    private val preferences: PreferencesHelper by injectLazy()
+
+    fun fetchPopularManga(page: Int): Observable<MangasPage> {
+        return client.newCall(popularMangaRequest(page))
+            .asObservableSuccess()
+            .map { response ->
+                popularMangaParse(response)
+            }
+    }
+
+    private fun popularMangaRequest(page: Int): Request {
+        return GET("${MdUtil.baseUrl}/updates/$page/", headers, CacheControl.FORCE_NETWORK)
+    }
+
+    private fun popularMangaParse(response: Response): MangasPage {
+        val document = response.asJsoup()
+
+        val mangas = document.select(popularMangaSelector).map { element ->
+            popularMangaFromElement(element)
+        }.distinct()
+
+        val hasNextPage = popularMangaNextPageSelector.let { selector ->
+            document.select(selector).first()
+        } != null
+
+        return MangasPage(mangas, hasNextPage)
+    }
+
+    private fun popularMangaFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        element.select("a.manga_title").first().let {
+            val url = MdUtil.modifyMangaUrl(it.attr("href"))
+            manga.setMDUrlWithoutDomain(url)
+            manga.title = it.text().trim()
+        }
+
+        manga.thumbnail_url = MdUtil.formThumbUrl(manga.url, preferences.mangaDexLowQualityCovers().get())
+
+        return manga
+    }
+
+    companion object {
+        const val popularMangaSelector = "tr a.manga_title"
+        const val popularMangaNextPageSelector = ".pagination li:not(.disabled) span[title*=last page]:not(disabled)"
+    }
+}

app/src/main/java/exh/md/handlers/SearchHandler.kt

@@ -0,0 +1,216 @@
+package exh.md.handlers
+
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.asObservableSuccess
+import eu.kanade.tachiyomi.source.model.FilterList
+import eu.kanade.tachiyomi.source.model.MangasPage
+import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.util.asJsoup
+import exh.md.utils.MdUtil
+import exh.md.utils.setMDUrlWithoutDomain
+import okhttp3.CacheControl
+import okhttp3.Headers
+import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+import org.jsoup.nodes.Element
+import rx.Observable
+import uy.kohesive.injekt.injectLazy
+
+// Unused, kept for reference todo
+class SearchHandler(val client: OkHttpClient, private val headers: Headers, val langs: List<String>) {
+
+    private val preferences: PreferencesHelper by injectLazy()
+
+    fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
+        return when {
+            query.startsWith(PREFIX_ID_SEARCH) -> {
+                val realQuery = query.removePrefix(PREFIX_ID_SEARCH)
+                client.newCall(searchMangaByIdRequest(realQuery))
+                    .asObservableSuccess()
+                    .map { response ->
+                        val details = SManga.create()
+                        details.url = "/manga/$realQuery/"
+                        ApiMangaParser(langs).parseToManga(details, response).await()
+                        MangasPage(listOf(details), false)
+                    }
+            }
+            query.startsWith(PREFIX_GROUP_SEARCH) -> {
+                val realQuery = query.removePrefix(PREFIX_GROUP_SEARCH)
+                client.newCall(searchMangaByGroupRequest(realQuery))
+                    .asObservableSuccess()
+                    .map { response ->
+                        response.asJsoup().select(groupSelector).firstOrNull()?.attr("abs:href")
+                            ?.let {
+                                searchMangaParse(client.newCall(GET("$it/manga/0", headers)).execute())
+                            }
+                            ?: MangasPage(emptyList(), false)
+                    }
+            }
+            else -> {
+                client.newCall(searchMangaRequest(page, query, filters))
+                    .asObservableSuccess()
+                    .map { response ->
+                        searchMangaParse(response)
+                    }
+            }
+        }
+    }
+
+    private fun searchMangaParse(response: Response): MangasPage {
+        val document = response.asJsoup()
+
+        val mangas = document.select(searchMangaSelector).map { element ->
+            searchMangaFromElement(element)
+        }
+
+        val hasNextPage = searchMangaNextPageSelector.let { selector ->
+            document.select(selector).first()
+        } != null
+
+        return MangasPage(mangas, hasNextPage)
+    }
+
+    private fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request {
+        val tags = mutableListOf<String>()
+        val statuses = mutableListOf<String>()
+        val demographics = mutableListOf<String>()
+
+        // Do traditional search
+        val url = "${MdUtil.baseUrl}/?page=search".toHttpUrlOrNull()!!.newBuilder()
+            .addQueryParameter("p", page.toString())
+            .addQueryParameter("title", query.replace(WHITESPACE_REGEX, " "))
+
+        filters.forEach { filter ->
+            when (filter) {
+                is FilterHandler.TextField -> url.addQueryParameter(filter.key, filter.state)
+                is FilterHandler.DemographicList -> {
+                    filter.state.forEach { demographic ->
+                        if (demographic.state) {
+                            demographics.add(demographic.id)
+                        }
+                    }
+                }
+                is FilterHandler.PublicationStatusList -> {
+                    filter.state.forEach { status ->
+                        if (status.state) {
+                            statuses.add(status.id)
+                        }
+                    }
+                }
+                is FilterHandler.OriginalLanguage -> {
+                    if (filter.state != 0) {
+                        val number: String =
+                            FilterHandler.sourceLang().first { it -> it.first == filter.values[filter.state] }
+                                .second
+                        url.addQueryParameter("lang_id", number)
+                    }
+                }
+                is FilterHandler.TagInclusionMode -> {
+                    url.addQueryParameter("tag_mode_inc", arrayOf("all", "any")[filter.state])
+                }
+                is FilterHandler.TagExclusionMode -> {
+                    url.addQueryParameter("tag_mode_exc", arrayOf("all", "any")[filter.state])
+                }
+                is FilterHandler.ContentList -> {
+                    filter.state.forEach { content ->
+                        if (content.isExcluded()) {
+                            tags.add("-${content.id}")
+                        } else if (content.isIncluded()) {
+                            tags.add(content.id)
+                        }
+                    }
+                }
+                is FilterHandler.FormatList -> {
+                    filter.state.forEach { format ->
+                        if (format.isExcluded()) {
+                            tags.add("-${format.id}")
+                        } else if (format.isIncluded()) {
+                            tags.add(format.id)
+                        }
+                    }
+                }
+                is FilterHandler.GenreList -> {
+                    filter.state.forEach { genre ->
+                        if (genre.isExcluded()) {
+                            tags.add("-${genre.id}")
+                        } else if (genre.isIncluded()) {
+                            tags.add(genre.id)
+                        }
+                    }
+                }
+                is FilterHandler.ThemeList -> {
+                    filter.state.forEach { theme ->
+                        if (theme.isExcluded()) {
+                            tags.add("-${theme.id}")
+                        } else if (theme.isIncluded()) {
+                            tags.add(theme.id)
+                        }
+                    }
+                }
+                is FilterHandler.SortFilter -> {
+                    if (filter.state != null) {
+                        val sortables = FilterHandler.sortables()
+                        if (filter.state!!.ascending) {
+                            url.addQueryParameter(
+                                "s",
+                                sortables[filter.state!!.index].second.toString()
+                            )
+                        } else {
+                            url.addQueryParameter(
+                                "s",
+                                sortables[filter.state!!.index].third.toString()
+                            )
+                        }
+                    }
+                }
+            }
+        }
+        // Manually append genres list to avoid commas being encoded
+        var urlToUse = url.toString()
+        if (demographics.isNotEmpty()) {
+            urlToUse += "&demos=" + demographics.joinToString(",")
+        }
+        if (statuses.isNotEmpty()) {
+            urlToUse += "&statuses=" + statuses.joinToString(",")
+        }
+        if (tags.isNotEmpty()) {
+            urlToUse += "&tags=" + tags.joinToString(",")
+        }
+
+        return GET(urlToUse, headers, CacheControl.FORCE_NETWORK)
+    }
+
+    private fun searchMangaFromElement(element: Element): SManga {
+        val manga = SManga.create()
+        element.select("a.manga_title").first().let {
+            val url = MdUtil.modifyMangaUrl(it.attr("href"))
+            manga.setMDUrlWithoutDomain(url)
+            manga.title = it.text().trim()
+        }
+
+        manga.thumbnail_url = MdUtil.formThumbUrl(manga.url, preferences.mangaDexLowQualityCovers().get())
+
+        return manga
+    }
+
+    private fun searchMangaByIdRequest(id: String): Request {
+        return GET(MdUtil.baseUrl + MdUtil.apiManga + id, headers, CacheControl.FORCE_NETWORK)
+    }
+
+    private fun searchMangaByGroupRequest(group: String): Request {
+        return GET(MdUtil.groupSearchUrl + group, headers, CacheControl.FORCE_NETWORK)
+    }
+
+    companion object {
+        const val PREFIX_ID_SEARCH = "id:"
+        const val PREFIX_GROUP_SEARCH = "group:"
+        val WHITESPACE_REGEX = "\\s".toRegex()
+        const val searchMangaNextPageSelector =
+            ".pagination li:not(.disabled) span[title*=last page]:not(disabled)"
+        const val searchMangaSelector = "div.manga-entry"
+        const val groupSelector = ".table > tbody:nth-child(2) > tr:nth-child(1) > td:nth-child(2) > a"
+    }
+}

app/src/main/java/exh/md/handlers/SimilarHandler.kt

@@ -0,0 +1,47 @@
+package exh.md.handlers
+
+// todo make this work
+/*import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaSimilarImpl
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.source.model.MangasPage
+import eu.kanade.tachiyomi.source.model.SManga
+import exh.md.utils.MdUtil
+import rx.Observable
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+
+class SimilarHandler(val preferences: PreferencesHelper) {
+
+    *//**
+ * fetch our similar mangas
+ *//*
+    fun fetchSimilar(manga: Manga): Observable<MangasPage> {
+
+        // Parse the Mangadex id from the URL
+        val mangaid = MdUtil.getMangaId(manga.url).toLong()
+
+        val lowQualityCovers = preferences.mangaDexLowQualityCovers().get()
+
+        // Get our current database
+        val db = Injekt.get<DatabaseHelper>()
+        val similarMangaDb = db.getSimilar(mangaid).executeAsBlocking() ?: return Observable.just(MangasPage(mutableListOf(), false))
+
+        // Check if we have a result
+
+        val similarMangaTitles = similarMangaDb.matched_titles.split(MangaSimilarImpl.DELIMITER)
+        val similarMangaIds = similarMangaDb.matched_ids.split(MangaSimilarImpl.DELIMITER)
+
+        val similarMangas = similarMangaIds.mapIndexed { index, similarId ->
+            SManga.create().apply {
+                title = similarMangaTitles[index]
+                url = "/manga/$similarId/"
+                thumbnail_url = MdUtil.formThumbUrl(url, lowQualityCovers)
+            }
+        }
+
+        // Return the matches
+        return Observable.just(MangasPage(similarMangas, false))
+    }
+}*/

app/src/main/java/exh/md/handlers/serializers/ApiMangaSerializer.kt

@@ -0,0 +1,74 @@
+package exh.md.handlers.serializers
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class ApiMangaSerializer(
+    val chapter: Map<String, ChapterSerializer>? = null,
+    val manga: MangaSerializer,
+    val status: String
+)
+
+@Serializable
+data class MangaSerializer(
+    val artist: String,
+    val author: String,
+    val cover_url: String,
+    val description: String,
+    val genres: List<Int>,
+    val hentai: Int,
+    val lang_flag: String,
+    val lang_name: String,
+    val last_chapter: String? = null,
+    val links: LinksSerializer? = null,
+    val rating: RatingSerializer? = null,
+    val status: Int,
+    val title: String
+)
+
+@Serializable
+data class LinksSerializer(
+    val al: String? = null,
+    val amz: String? = null,
+    val ap: String? = null,
+    val engtl: String? = null,
+    val kt: String? = null,
+    val mal: String? = null,
+    val mu: String? = null,
+    val raw: String? = null
+)
+
+@Serializable
+data class RatingSerializer(
+    val bayesian: String? = null,
+    val mean: String? = null,
+    val users: String? = null
+)
+
+@Serializable
+data class ChapterSerializer(
+    val volume: String? = null,
+    val chapter: String? = null,
+    val title: String? = null,
+    val lang_code: String,
+    val group_id: Int? = null,
+    val group_name: String? = null,
+    val group_id_2: Int? = null,
+    val group_name_2: String? = null,
+    val group_id_3: Int? = null,
+    val group_name_3: String? = null,
+    val timestamp: Long
+)
+
+@Serializable
+data class CoversResult(
+    val covers: List<String> = emptyList(),
+    val status: String
+)
+
+@Serializable
+data class ImageReportResult(
+    val url: String,
+    val success: Boolean,
+    val bytes: Int?
+)

app/src/main/java/exh/md/handlers/serializers/FollowsPageSerializer.kt

@@ -0,0 +1,17 @@
+package exh.md.handlers.serializers
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class FollowsPageResult(
+    val result: List<Result> = emptyList()
+)
+
+@Serializable
+data class Result(
+    val title: String,
+    val chapter: String,
+    val follow_type: Int,
+    val manga_id: Int,
+    val volume: String
+)

app/src/main/java/exh/md/handlers/serializers/MangaPlusSerializer.kt

@@ -0,0 +1,136 @@
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.Serializer
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@ExperimentalSerializationApi
+@Serializer(forClass = MangaPlusResponse::class)
+object MangaPlusSerializer
+
+@ExperimentalSerializationApi
+@Serializable
+data class MangaPlusResponse(
+    @ProtoNumber(1) val success: SuccessResult? = null,
+    @ProtoNumber(2) val error: ErrorResult? = null
+)
+
+@ExperimentalSerializationApi
+@Serializable
+data class ErrorResult(
+    @ProtoNumber(1) val action: Action,
+    @ProtoNumber(2) val englishPopup: Popup,
+    @ProtoNumber(3) val spanishPopup: Popup
+)
+
+enum class Action { DEFAULT, UNAUTHORIZED, MAINTAINENCE, GEOIP_BLOCKING }
+
+@ExperimentalSerializationApi
+@Serializable
+data class Popup(
+    @ProtoNumber(1) val subject: String,
+    @ProtoNumber(2) val body: String
+)
+
+@ExperimentalSerializationApi
+@Serializable
+data class SuccessResult(
+    @ProtoNumber(1) val isFeaturedUpdated: Boolean? = false,
+    @ProtoNumber(5) val allTitlesView: AllTitlesView? = null,
+    @ProtoNumber(6) val titleRankingView: TitleRankingView? = null,
+    @ProtoNumber(8) val titleDetailView: TitleDetailView? = null,
+    @ProtoNumber(10) val mangaViewer: MangaViewer? = null,
+    @ProtoNumber(11) val webHomeView: WebHomeView? = null
+)
+
+@ExperimentalSerializationApi
+@Serializable
+data class TitleRankingView(@ProtoNumber(1) val titles: List<Title> = emptyList())
+
+@ExperimentalSerializationApi
+@Serializable
+data class AllTitlesView(@ProtoNumber(1) val titles: List<Title> = emptyList())
+
+@ExperimentalSerializationApi
+@Serializable
+data class WebHomeView(@ProtoNumber(2) val groups: List<UpdatedTitleGroup> = emptyList())
+
+@ExperimentalSerializationApi
+@Serializable
+data class TitleDetailView(
+    @ProtoNumber(1) val title: Title,
+    @ProtoNumber(2) val titleImageUrl: String,
+    @ProtoNumber(3) val overview: String,
+    @ProtoNumber(4) val backgroundImageUrl: String,
+    @ProtoNumber(5) val nextTimeStamp: Int = 0,
+    @ProtoNumber(6) val updateTiming: UpdateTiming? = UpdateTiming.DAY,
+    @ProtoNumber(7) val viewingPeriodDescription: String = "",
+    @ProtoNumber(9) val firstChapterList: List<Chapter> = emptyList(),
+    @ProtoNumber(10) val lastChapterList: List<Chapter> = emptyList(),
+    @ProtoNumber(14) val isSimulReleased: Boolean = true,
+    @ProtoNumber(17) val chaptersDescending: Boolean = true
+)
+
+enum class UpdateTiming { NOT_REGULARLY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY, DAY }
+
+@ExperimentalSerializationApi
+@Serializable
+data class MangaViewer(@ProtoNumber(1) val pages: List<MangaPlusPage> = emptyList())
+
+@ExperimentalSerializationApi
+@Serializable
+data class Title(
+    @ProtoNumber(1) val titleId: Int,
+    @ProtoNumber(2) val name: String,
+    @ProtoNumber(3) val author: String,
+    @ProtoNumber(4) val portraitImageUrl: String,
+    @ProtoNumber(5) val landscapeImageUrl: String,
+    @ProtoNumber(6) val viewCount: Int,
+    @ProtoNumber(7) val language: Language? = Language.ENGLISH
+)
+
+@ExperimentalSerializationApi
+@Serializable
+enum class Language(val id: Int) {
+    @ProtoNumber(0)
+    ENGLISH(0),
+
+    @ProtoNumber(1)
+    SPANISH(1)
+}
+
+@ExperimentalSerializationApi
+@Serializable
+data class UpdatedTitleGroup(
+    @ProtoNumber(1) val groupName: String,
+    @ProtoNumber(2) val titles: List<UpdatedTitle> = emptyList()
+)
+
+@ExperimentalSerializationApi
+@Serializable
+data class UpdatedTitle(
+    @ProtoNumber(1) val title: Title? = null
+)
+
+@ExperimentalSerializationApi
+@Serializable
+data class Chapter(
+    @ProtoNumber(1) val titleId: Int,
+    @ProtoNumber(2) val chapterId: Int,
+    @ProtoNumber(3) val name: String,
+    @ProtoNumber(4) val subTitle: String? = null,
+    @ProtoNumber(6) val startTimeStamp: Int,
+    @ProtoNumber(7) val endTimeStamp: Int
+)
+
+@ExperimentalSerializationApi
+@Serializable
+data class MangaPlusPage(@ProtoNumber(1) val page: MangaPage? = null)
+
+@ExperimentalSerializationApi
+@Serializable
+data class MangaPage(
+    @ProtoNumber(1) val imageUrl: String,
+    @ProtoNumber(2) val width: Int,
+    @ProtoNumber(3) val height: Int,
+    @ProtoNumber(5) val encryptionKey: String? = null
+)

app/src/main/java/exh/md/utils/FollowStatus.kt

@@ -0,0 +1,15 @@
+package exh.md.utils
+
+enum class FollowStatus(val int: Int) {
+    UNFOLLOWED(0),
+    READING(1),
+    COMPLETED(2),
+    ON_HOLD(3),
+    PLAN_TO_READ(4),
+    DROPPED(5),
+    RE_READING(6);
+
+    companion object {
+        fun fromInt(value: Int): FollowStatus? = values().find { it.int == value }
+    }
+}

app/src/main/java/exh/md/utils/MdLang.kt

@@ -0,0 +1,45 @@
+package exh.md.utils
+
+enum class MdLang(val lang: String, val dexLang: String, val langId: Int) {
+    English("en", "gb", 1),
+    Japanese("ja", "jp", 2),
+    Polish("pl", "pl", 3),
+    SerboCroatian("sh", "rs", 4),
+    Dutch("nl", "nl", 5),
+    Italian("it", "it", 6),
+    Russian("ru", "ru", 7),
+    German("de", "de", 8),
+    Hungarian("hu", "hu", 9),
+    French("fr", "fr", 10),
+    Finnish("fi", "fi", 11),
+    Vietnamese("vi", "vn", 12),
+    Greek("el", "gr", 13),
+    Bulgarian("bg", "bg", 14),
+    Spanish("es", "es", 15),
+    PortugeseBrazilian("pt-BR", "br", 16),
+    Portuguese("pt", "pt", 17),
+    Swedish("sv", "se", 18),
+    Arabic("ar", "sa", 19),
+    Danish("da", "dk", 20),
+    ChineseSimplifed("zh-Hans", "cn", 21),
+    Bengali("bn", "bd", 22),
+    Romanian("ro", "ro", 23),
+    Czech("cs", "cz", 24),
+    Mongolian("mn", "mn", 25),
+    Turkish("tr", "tr", 26),
+    Indonesian("id", "id", 27),
+    Korean("ko", "kr", 28),
+    SpanishLTAM("es-419", "mx", 29),
+    Persian("fa", "ir", 30),
+    Malay("ms", "my", 31),
+    Thai("th", "th", 32),
+    Catalan("ca", "ct", 33),
+    Filipino("fil", "ph", 34),
+    ChineseTraditional("zh-Hant", "hk", 35),
+    Ukrainian("uk", "ua", 36),
+    Burmese("my", "mm", 37),
+    Lithuanian("lt", "il", 38),
+    Hebrew("he", "il", 39),
+    Hindi("hi", "in", 40),
+    Norwegian("no", "no", 42)
+}

app/src/main/java/exh/md/utils/MdUtil.kt

@@ -0,0 +1,248 @@
+package exh.md.utils
+
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import java.net.URI
+import java.net.URISyntaxException
+import kotlin.math.floor
+import kotlinx.serialization.json.Json
+import org.jsoup.parser.Parser
+
+class MdUtil {
+
+    companion object {
+        const val cdnUrl = "https://mangadex.org" // "https://s0.mangadex.org"
+        const val baseUrl = "https://mangadex.org"
+        const val randMangaPage = "/manga/"
+        const val apiManga = "/api/manga/"
+        const val apiChapter = "/api/chapter/"
+        const val apiChapterSuffix = "?mark_read=0"
+        const val groupSearchUrl = "$baseUrl/groups/0/1/"
+        const val followsAllApi = "/api/?type=manga_follows"
+        const val followsMangaApi = "/api/?type=manga_follows&manga_id="
+        const val coversApi = "/api/index.php?type=covers&id="
+        const val reportUrl = "https://api.mangadex.network/report"
+        const val imageUrl = "$baseUrl/data"
+
+        val jsonParser = Json {
+            isLenient = true
+            ignoreUnknownKeys = true
+            allowSpecialFloatingPointValues = true
+            useArrayPolymorphism = true
+            prettyPrint = true
+        }
+
+        private const
+        val scanlatorSeparator = " & "
+
+        val validOneShotFinalChapters = listOf("0", "1")
+
+        val englishDescriptionTags = listOf(
+            "[b][u]English:",
+            "[b][u]English",
+            "[English]:",
+            "[B][ENG][/B]"
+        )
+
+        val descriptionLanguages = listOf(
+            "Russian / Русский",
+            "[u]Russian",
+            "[b][u]Russian",
+            "[RUS]",
+            "Russian / Русский",
+            "Russian/Русский:",
+            "Russia/Русское",
+            "Русский",
+            "RUS:",
+            "[b][u]German / Deutsch",
+            "German/Deutsch:",
+            "Español / Spanish",
+            "Spanish / Español",
+            "Spanish / Espa & ntilde; ol",
+            "Spanish / Español",
+            "[b][u]Spanish",
+            "[Español]:",
+            "[b] Spanish: [/ b]",
+            "Spanish/Español",
+            "Español / Spanish",
+            "Italian / Italiano",
+            "Pasta-Pizza-Mandolino/Italiano",
+            "Polish / polski",
+            "Polish / Polski",
+            "Polish Summary / Polski Opis",
+            "Polski",
+            "Portuguese (BR) / Português",
+            "Portuguese / Português",
+            "Português / Portuguese",
+            "Portuguese / Portugu",
+            "Portuguese / Português",
+            "Português",
+            "Portuguese (BR) / Portugu & ecirc;",
+            "Portuguese (BR) / Portuguê",
+            "[PTBR]",
+            "Résume Français",
+            "Résumé Français",
+            "[b][u]French",
+            "French / Français",
+            "Français",
+            "[hr]Fr:",
+            "French - Français:",
+            "Turkish / Türkçe",
+            "Turkish/Türkçe",
+            "[b][u]Chinese",
+            "Arabic / العربية",
+            "العربية",
+            "[hr]TH",
+            "[b][u]Vietnamese",
+            "[b]Links:",
+            "[b]Link[/b]",
+            "Links:",
+            "[b]External Links"
+        )
+
+        // guess the thumbnail url is .jpg  this has a ~80% success rate
+        fun formThumbUrl(mangaUrl: String, lowQuality: Boolean): String {
+            var ext = ".jpg"
+            if (lowQuality) {
+                ext = ".thumb$ext"
+            }
+            return cdnUrl + "/images/manga/" + getMangaId(mangaUrl) + ext
+        }
+
+        // Get the ID from the manga url
+        fun getMangaId(url: String): String {
+            val lastSection = url.trimEnd('/').substringAfterLast("/")
+            return if (lastSection.toIntOrNull() != null) {
+                lastSection
+            } else {
+                // this occurs if person has manga from before that had the id/name/
+                url.trimEnd('/').substringBeforeLast("/").substringAfterLast("/")
+            }
+        }
+
+        fun getChapterId(url: String) = url.substringBeforeLast(apiChapterSuffix).substringAfterLast("/")
+
+        // creates the manga url from the browse for the api
+        fun modifyMangaUrl(url: String): String =
+            url.replace("/title/", "/manga/").substringBeforeLast("/") + "/"
+
+        // Removes the ?timestamp from image urls
+        fun removeTimeParamUrl(url: String): String = url.substringBeforeLast("?")
+
+        fun cleanString(string: String): String {
+            val bbRegex =
+                """\[(\w+)[^]]*](.*?)\[/\1]""".toRegex()
+            var intermediate = string
+                .replace("[list]", "", true)
+                .replace("[/list]", "", true)
+                .replace("[*]", "")
+                .replace("[hr]", "", true)
+                .replace("[u]", "", true)
+                .replace("[/u]", "", true)
+                .replace("[b]", "", true)
+                .replace("[/b]", "", true)
+
+            // Recursively remove nested bbcode
+            while (bbRegex.containsMatchIn(intermediate)) {
+                intermediate = intermediate.replace(bbRegex, "$2")
+            }
+            return Parser.unescapeEntities(intermediate, false)
+        }
+
+        fun cleanDescription(string: String): String {
+            var newDescription = string
+            descriptionLanguages.forEach {
+                newDescription = newDescription.substringBefore(it)
+            }
+
+            englishDescriptionTags.forEach {
+                newDescription = newDescription.replace(it, "")
+            }
+            return cleanString(newDescription)
+        }
+
+        fun getImageUrl(attr: String): String {
+            // Some images are hosted elsewhere
+            if (attr.startsWith("http")) {
+                return attr
+            }
+            return baseUrl + attr
+        }
+
+        fun getScanlators(scanlators: String): List<String> {
+            if (scanlators.isBlank()) return emptyList()
+            return scanlators.split(scanlatorSeparator).distinct()
+        }
+
+        fun getScanlatorString(scanlators: Set<String>): String {
+            return scanlators.toList().sorted().joinToString(scanlatorSeparator)
+        }
+
+        fun getMissingChapterCount(chapters: List<SChapter>, mangaStatus: Int): String? {
+            if (mangaStatus == SManga.COMPLETED) return null
+
+            // TODO
+            val remove0ChaptersFromCount = chapters.distinctBy {
+                /*if (it.chapter_txt.isNotEmpty()) {
+                    it.vol + it.chapter_txt
+                } else {*/
+                it.name
+                /*}*/
+            }.sortedByDescending { it.chapter_number }
+
+            remove0ChaptersFromCount.firstOrNull()?.let {
+                val chpNumber = floor(it.chapter_number).toInt()
+                val allChapters = (1..chpNumber).toMutableSet()
+
+                remove0ChaptersFromCount.forEach {
+                    allChapters.remove(floor(it.chapter_number).toInt())
+                }
+
+                if (allChapters.size <= 0) return null
+                return allChapters.size.toString()
+            }
+            return null
+        }
+    }
+}
+
+/**
+ * Assigns the url of the chapter without the scheme and domain. It saves some redundancy from
+ * database and the urls could still work after a domain change.
+ *
+ * @param url the full url to the chapter.
+ */
+fun SChapter.setMDUrlWithoutDomain(url: String) {
+    this.url = getMDUrlWithoutDomain(url)
+}
+
+/**
+ * Assigns the url of the manga without the scheme and domain. It saves some redundancy from
+ * database and the urls could still work after a domain change.
+ *
+ * @param url the full url to the manga.
+ */
+fun SManga.setMDUrlWithoutDomain(url: String) {
+    this.url = getMDUrlWithoutDomain(url)
+}
+
+/**
+ * Returns the url of the given string without the scheme and domain.
+ *
+ * @param orig the full url.
+ */
+private fun getMDUrlWithoutDomain(orig: String): String {
+    return try {
+        val uri = URI(orig)
+        var out = uri.path
+        if (uri.query != null) {
+            out += "?" + uri.query
+        }
+        if (uri.fragment != null) {
+            out += "#" + uri.fragment
+        }
+        out
+    } catch (e: URISyntaxException) {
+        orig
+    }
+}

app/src/main/java/exh/metadata/metadata/MangaDexSearchMetadata.kt

@@ -0,0 +1,111 @@
+package exh.metadata.metadata
+
+import android.content.Context
+import androidx.core.net.toUri
+import com.elvishew.xlog.XLog
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.source.model.SManga
+import exh.md.utils.setMDUrlWithoutDomain
+import exh.metadata.metadata.base.RaisedSearchMetadata
+import java.net.URI
+import java.net.URISyntaxException
+
+class MangaDexSearchMetadata : RaisedSearchMetadata() {
+    var mdId: String? = null
+
+    var mdUrl: String? = null
+
+    var thumbnail_url: String? = null
+
+    var title: String? by titleDelegate(TITLE_TYPE_MAIN)
+
+    var description: String? = null
+
+    var author: String? = null
+    var artist: String? = null
+
+    var lang_flag: String? = null
+
+    var last_chapter_number: Int? = null
+    var rating: String? = null
+    var users: String? = null
+
+    var anilist_id: String? = null
+    var kitsu_id: String? = null
+    var my_anime_list_id: String? = null
+    var manga_updates_id: String? = null
+    var anime_planet_id: String? = null
+
+    var status: Int? = null
+
+    var missing_chapters: String? = null
+
+    var follow_status: Int? = null
+
+    override fun copyTo(manga: SManga) {
+        mdUrl?.let {
+            manga.url = try {
+                val uri = it.toUri()
+                val out = uri.path!!.removePrefix("/api")
+                out + if (out.endsWith("/")) "" else "/"
+            } catch (e: Exception) {
+                it
+            }
+        }
+
+        title?.let {
+            manga.title = it
+        }
+
+        // Guess thumbnail URL if manga does not have thumbnail URL
+
+        manga.thumbnail_url = thumbnail_url
+
+        author?.let {
+            manga.author = it
+        }
+
+        artist?.let {
+            manga.artist = it
+        }
+
+        status?.let {
+            manga.status = it
+        }
+
+        manga.genre = tagsToGenreString()
+
+        description?.let {
+            manga.description = it
+        }
+    }
+
+    override fun getExtraInfoPairs(context: Context): List<Pair<String, String>> {
+        val pairs = mutableListOf<Pair<String, String>>()
+        mdId?.let { pairs += Pair(context.getString(R.string.id), it) }
+        mdUrl?.let { pairs += Pair(context.getString(R.string.url), it) }
+        thumbnail_url?.let { pairs += Pair(context.getString(R.string.thumbnail_url), it) }
+        title?.let { pairs += Pair(context.getString(R.string.title), it) }
+        author?.let { pairs += Pair(context.getString(R.string.author), it) }
+        artist?.let { pairs += Pair(context.getString(R.string.artist), it) }
+        lang_flag?.let { pairs += Pair(context.getString(R.string.language), it) }
+        last_chapter_number?.let { pairs += Pair(context.getString(R.string.last_chapter_number), it.toString()) }
+        rating?.let { pairs += Pair(context.getString(R.string.average_rating), it) }
+        users?.let { pairs += Pair(context.getString(R.string.total_ratings), it) }
+        status?.let { pairs += Pair(context.getString(R.string.status), it.toString()) }
+        missing_chapters?.let { pairs += Pair(context.getString(R.string.missing_chapters), it) }
+        follow_status?.let { pairs += Pair(context.getString(R.string.follow_status), it.toString()) }
+        anilist_id?.let { pairs += Pair(context.getString(R.string.anilist_id), it) }
+        kitsu_id?.let { pairs += Pair(context.getString(R.string.kitsu_id), it) }
+        my_anime_list_id?.let { pairs += Pair(context.getString(R.string.mal_id), it) }
+        manga_updates_id?.let { pairs += Pair(context.getString(R.string.manga_updates_id), it) }
+        anime_planet_id?.let { pairs += Pair(context.getString(R.string.anime_planet_id), it) }
+        return pairs
+    }
+
+    companion object {
+        private const val TITLE_TYPE_MAIN = 0
+
+        const val TAG_TYPE_DEFAULT = 0
+    }
+}

app/src/main/java/exh/ui/metadata/adapters/MangaDexDescriptionAdapter.kt

@@ -0,0 +1,99 @@
+package exh.ui.metadata.adapters
+
+import android.annotation.SuppressLint
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.databinding.DescriptionAdapterMdBinding
+import eu.kanade.tachiyomi.ui.base.controller.withFadeTransaction
+import eu.kanade.tachiyomi.ui.manga.MangaController
+import eu.kanade.tachiyomi.util.system.copyToClipboard
+import exh.metadata.metadata.MangaDexSearchMetadata
+import exh.ui.metadata.MetadataViewController
+import kotlin.math.roundToInt
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import reactivecircus.flowbinding.android.view.clicks
+import reactivecircus.flowbinding.android.view.longClicks
+
+class MangaDexDescriptionAdapter(
+    private val controller: MangaController
+) :
+    RecyclerView.Adapter<MangaDexDescriptionAdapter.MangaDexDescriptionViewHolder>() {
+
+    private val scope = CoroutineScope(Job() + Dispatchers.Main)
+    private lateinit var binding: DescriptionAdapterMdBinding
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MangaDexDescriptionViewHolder {
+        binding = DescriptionAdapterMdBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return MangaDexDescriptionViewHolder(binding.root)
+    }
+
+    override fun getItemCount(): Int = 1
+
+    override fun onBindViewHolder(holder: MangaDexDescriptionViewHolder, position: Int) {
+        holder.bind()
+    }
+
+    inner class MangaDexDescriptionViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+
+        fun bind() {
+            val meta = controller.presenter.meta
+            if (meta == null || meta !is MangaDexSearchMetadata) return
+
+            @SuppressLint("SetTextI18n")
+            binding.mdId.text = "#" + (meta.mdId ?: 0)
+
+            val ratingFloat = meta.rating?.toFloatOrNull()?.div(2F)
+            val name = when (((ratingFloat ?: 100F) * 2).roundToInt()) {
+                0 -> R.string.rating0
+                1 -> R.string.rating1
+                2 -> R.string.rating2
+                3 -> R.string.rating3
+                4 -> R.string.rating4
+                5 -> R.string.rating5
+                6 -> R.string.rating6
+                7 -> R.string.rating7
+                8 -> R.string.rating8
+                9 -> R.string.rating9
+                10 -> R.string.rating10
+                else -> R.string.no_rating
+            }
+            binding.ratingBar.rating = ratingFloat ?: 0F
+            binding.rating.text = if (meta.users?.toIntOrNull() != null) {
+                itemView.context.getString(R.string.rating_view, itemView.context.getString(name), (meta.rating?.toFloatOrNull() ?: 0F).toString(), meta.users?.toIntOrNull() ?: 0)
+            } else {
+                itemView.context.getString(R.string.rating_view_no_count, itemView.context.getString(name), (meta.rating?.toFloatOrNull() ?: 0F).toString())
+            }
+
+            listOf(
+                binding.mdId,
+                binding.rating
+            ).forEach { textView ->
+                textView.longClicks()
+                    .onEach {
+                        itemView.context.copyToClipboard(
+                            textView.text.toString(),
+                            textView.text.toString()
+                        )
+                    }
+                    .launchIn(scope)
+            }
+
+            binding.moreInfo.clicks()
+                .onEach {
+                    controller.router?.pushController(
+                        MetadataViewController(
+                            controller.manga
+                        ).withFadeTransaction()
+                    )
+                }
+                .launchIn(scope)
+        }
+    }
+}

app/src/main/res/layout/description_adapter_md.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <com.google.android.material.textview.MaterialTextView
+            android:id="@+id/mdId"
+            style="@style/TextAppearance.Regular"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"/>
+
+
+        <me.zhanghai.android.materialratingbar.MaterialRatingBar
+            android:id="@+id/rating_bar"
+            android:layout_width="wrap_content"
+            android:layout_height="25dp"
+            android:layout_gravity="center_horizontal"
+            android:focusable="false"
+            android:isIndicator="true"
+            android:numStars="5"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <Button
+            android:id="@+id/more_info"
+            style="@style/Theme.Widget.Button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="16dp"
+            android:text="@string/more_info"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/rating"
+        style="@style/TextAppearance.Regular"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/rating_bar" />
+
+
+</LinearLayout>

app/src/main/res/values/strings_sy.xml

@@ -215,6 +215,11 @@
     <string name="az_recommends">See Recommendations</string>
     <string name="merge_with_another_source">Merge With Another</string>
 
+    <!-- Manga info fragment -->
+    <string name="hiatus">Hiatus</string>
+    <string name="cancelled">Cancelled</string>
+    <string name="publication_complete">Publication Complete</string>
+
     <!-- Manga Info Edit -->
     <string name="reset_tags">Reset Tags</string>
     <string name="reset_cover">Reset Cover</string>
@@ -433,6 +438,15 @@
     <string name="rating_string">Rating string</string>
     <string name="collection">Collection</string>
     <string name="parodies">Parodies</string>
+    <string name="author">Author</string>
+    <string name="last_chapter_number">Last chapter number</string>
+    <string name="missing_chapters">Missing chapters</string>
+    <string name="follow_status">Follow status</string>
+    <string name="anilist_id">Anilist id</string>
+    <string name="kitsu_id">Kitsu id</string>
+    <string name="mal_id">Mal id</string>
+    <string name="manga_updates_id">Manga updates id</string>
+    <string name="anime_planet_id">Anime planet id</string>
 
     <!-- Extra gallery info -->
     <plurals name="num_pages">

build.gradle.kts

@@ -46,6 +46,9 @@ buildscript {
         // Realm (EH)
         classpath("io.realm:realm-gradle-plugin:7.0.1")
 
+        // SY for mangadex utils
+        classpath("org.jetbrains.kotlin:kotlin-serialization:${BuildPluginsVersion.KOTLIN}")
+
         // Firebase (EH)
         classpath("io.fabric.tools:gradle:1.31.0")
     }