mihon/app/src/main/java/eu/kanade/tachiyomi/source/LocalSource.kt

187 lines
7.7 KiB
Kotlin
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package eu.kanade.tachiyomi.source
import android.content.Context
import android.net.Uri
import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.source.model.*
import eu.kanade.tachiyomi.util.ChapterRecognition
import eu.kanade.tachiyomi.util.DiskUtil
import eu.kanade.tachiyomi.util.ZipContentProvider
import net.greypanther.natsort.CaseInsensitiveSimpleNaturalComparator
import rx.Observable
import timber.log.Timber
import java.io.File
import java.io.FileInputStream
import java.io.InputStream
import java.util.*
import java.util.concurrent.TimeUnit
import java.util.zip.ZipEntry
import java.util.zip.ZipFile
class LocalSource(private val context: Context) : CatalogueSource {
companion object {
private val COVER_NAME = "cover.jpg"
private val POPULAR_FILTERS = FilterList(OrderBy())
private val LATEST_FILTERS = FilterList(OrderBy().apply { state = Filter.Sort.Selection(1, false) })
private val LATEST_THRESHOLD = TimeUnit.MILLISECONDS.convert(7, TimeUnit.DAYS)
val ID = 0L
fun updateCover(context: Context, manga: SManga, input: InputStream): File? {
val dir = getBaseDirectories(context).firstOrNull()
if (dir == null) {
input.close()
return null
}
val cover = File("${dir.absolutePath}/${manga.url}", COVER_NAME)
// It might not exist if using the external SD card
cover.parentFile.mkdirs()
input.use {
cover.outputStream().use {
input.copyTo(it)
}
}
return cover
}
private fun getBaseDirectories(context: Context): List<File> {
val c = context.getString(R.string.app_name) + File.separator + "local"
return DiskUtil.getExternalStorages(context).map { File(it.absolutePath, c) }
}
}
override val id = ID
override val name = "LocalSource"
override val lang = "en"
override val supportsLatest = true
override fun toString() = context.getString(R.string.local_source)
override fun fetchMangaDetails(manga: SManga) = Observable.just(manga)
override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
val chapters = getBaseDirectories(context)
.mapNotNull { File(it, manga.url).listFiles()?.toList() }
.flatten()
.filter { it.isDirectory || isSupportedFormat(it.extension) }
.map { chapterFile ->
SChapter.create().apply {
url = "${manga.url}/${chapterFile.name}"
val chapName = if (chapterFile.isDirectory) {
chapterFile.name
} else {
chapterFile.nameWithoutExtension
}
val chapNameCut = chapName.replace(manga.title, "", true)
name = if (chapNameCut.isEmpty()) chapName else chapNameCut
date_upload = chapterFile.lastModified()
ChapterRecognition.parseChapterNumber(this, manga)
}
}
.sortedByDescending { it.chapter_number }
return Observable.just(chapters)
}
override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
val baseDirs = getBaseDirectories(context)
for (dir in baseDirs) {
val chapFile = File(dir, chapter.url)
if (!chapFile.exists()) continue
val comparator = CaseInsensitiveSimpleNaturalComparator.getInstance<String>()
val pageList = if (chapFile.isDirectory) {
chapFile.listFiles()
.filter { !it.isDirectory && DiskUtil.isImage(it.name, { FileInputStream(it) }) }
.sortedWith(Comparator<File> { f1, f2 -> comparator.compare(f1.name, f2.name) })
.map { Uri.fromFile(it) }
} else {
val zip = ZipFile(chapFile)
zip.entries().toList()
.filter { !it.isDirectory && DiskUtil.isImage(it.name, { zip.getInputStream(it) }) }
.sortedWith(Comparator<ZipEntry> { f1, f2 -> comparator.compare(f1.name, f2.name) })
.map { Uri.parse("content://${ZipContentProvider.PROVIDER}${chapFile.absolutePath}!/${it.name}") }
}.mapIndexed { i, uri -> Page(i, uri = uri).apply { status = Page.READY } }
return Observable.just(pageList)
}
return Observable.error(Exception("Chapter not found"))
}
override fun fetchPopularManga(page: Int) = fetchSearchManga(page, "", POPULAR_FILTERS)
override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
val baseDirs = getBaseDirectories(context)
val time = if (filters === LATEST_FILTERS) System.currentTimeMillis() - LATEST_THRESHOLD else 0L
var mangaDirs = baseDirs.mapNotNull { it.listFiles()?.toList() }
.flatten()
.filter { it.isDirectory && if (time == 0L) it.name.contains(query, ignoreCase = true) else it.lastModified() >= time }
.distinctBy { it.name }
val state = ((if (filters.isEmpty()) POPULAR_FILTERS else filters)[0] as OrderBy).state
when (state?.index) {
0 -> {
if (state!!.ascending)
mangaDirs = mangaDirs.sortedBy { it.name.toLowerCase(Locale.ENGLISH) }
else
mangaDirs = mangaDirs.sortedByDescending { it.name.toLowerCase(Locale.ENGLISH) }
}
1 -> {
if (state!!.ascending)
mangaDirs = mangaDirs.sortedBy(File::lastModified)
else
mangaDirs = mangaDirs.sortedByDescending(File::lastModified)
}
}
val mangas = mangaDirs.map { mangaDir ->
SManga.create().apply {
title = mangaDir.name
url = mangaDir.name
// Try to find the cover
for (dir in baseDirs) {
val cover = File("${dir.absolutePath}/$url", COVER_NAME)
if (cover.exists()) {
thumbnail_url = cover.absolutePath
break
}
}
// Copy the cover from the first chapter found.
if (thumbnail_url == null) {
val chapters = fetchChapterList(this).toBlocking().first()
if (chapters.isNotEmpty()) {
val url = fetchPageList(chapters.last()).toBlocking().first().firstOrNull()?.url
if (url != null) {
val input = context.contentResolver.openInputStream(Uri.parse(url))
try {
val dest = updateCover(context, this, input)
thumbnail_url = dest?.absolutePath
} catch (e: Exception) {
Timber.e(e)
}
}
}
}
initialized = true
}
}
return Observable.just(MangasPage(mangas, false))
}
override fun fetchLatestUpdates(page: Int) = fetchSearchManga(page, "", LATEST_FILTERS)
private fun isSupportedFormat(extension: String): Boolean {
return extension.equals("zip", true) || extension.equals("cbz", true)
}
private class OrderBy : Filter.Sort("Order by", arrayOf("Title", "Date"), Filter.Sort.Selection(0, true))
override fun getFilterList() = FilterList(OrderBy())
}