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// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
package org.yuzu.yuzu_emu.utils
import android.content.SharedPreferences
import android.net.Uri
import androidx.preference.PreferenceManager
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json
import org.yuzu.yuzu_emu.NativeLibrary
import org.yuzu.yuzu_emu.YuzuApplication
import org.yuzu.yuzu_emu.model.Game
import org.yuzu.yuzu_emu.model.MinimalDocumentFile
object GameHelper {
const val KEY_GAME_PATH = "game_path"
const val KEY_GAMES = "Games"
private lateinit var preferences: SharedPreferences
fun getGames(): List<Game> {
val games = mutableListOf<Game>()
val context = YuzuApplication.appContext
val gamesDir =
PreferenceManager.getDefaultSharedPreferences(context).getString(KEY_GAME_PATH, "")
val gamesUri = Uri.parse(gamesDir)
preferences = PreferenceManager.getDefaultSharedPreferences(context)
// Ensure keys are loaded so that ROM metadata can be decrypted.
NativeLibrary.reloadKeys()
addGamesRecursive(games, FileUtil.listFiles(context, gamesUri), 3)
// Cache list of games found on disk
val serializedGames = mutableSetOf<String>()
games.forEach {
serializedGames.add(Json.encodeToString(it))
}
preferences.edit()
.remove(KEY_GAMES)
.putStringSet(KEY_GAMES, serializedGames)
.apply()
return games.toList()
}
private fun addGamesRecursive(
games: MutableList<Game>,
files: Array<MinimalDocumentFile>,
depth: Int
) {
if (depth <= 0) {
return
}
files.forEach {
if (it.isDirectory) {
addGamesRecursive(
games,
FileUtil.listFiles(YuzuApplication.appContext, it.uri),
depth - 1
)
} else {
if (Game.extensions.contains(FileUtil.getExtension(it.uri))) {
games.add(getGame(it.uri, true))
}
}
}
}
fun getGame(uri: Uri, addedToLibrary: Boolean): Game {
val filePath = uri.toString()
var name = NativeLibrary.getTitle(filePath)
// If the game's title field is empty, use the filename.
if (name.isEmpty()) {
name = FileUtil.getFilename(uri)
}
var gameId = NativeLibrary.getGameId(filePath)
// If the game's ID field is empty, use the filename without extension.
if (gameId.isEmpty()) {
gameId = name.substring(0, name.lastIndexOf("."))
}
val newGame = Game(
name,
NativeLibrary.getDescription(filePath).replace("\n", " "),
NativeLibrary.getRegions(filePath),
filePath,
gameId,
NativeLibrary.getCompany(filePath),
NativeLibrary.isHomebrew(filePath)
)
if (addedToLibrary) {
val addedTime = preferences.getLong(newGame.keyAddedToLibraryTime, 0L)
if (addedTime == 0L) {
preferences.edit()
.putLong(newGame.keyAddedToLibraryTime, System.currentTimeMillis())
.apply()
}
}
return newGame
}
}
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