src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameIconUtils.kt


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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.graphics.Bitmap
import android.graphics.BitmapFactory
import android.widget.ImageView
import androidx.core.graphics.drawable.toDrawable
import coil.ImageLoader
import coil.decode.DataSource
import coil.fetch.DrawableResult
import coil.fetch.FetchResult
import coil.fetch.Fetcher
import coil.key.Keyer
import coil.memory.MemoryCache
import coil.request.ImageRequest
import coil.request.Options
import org.yuzu.yuzu_emu.NativeLibrary
import org.yuzu.yuzu_emu.R
import org.yuzu.yuzu_emu.YuzuApplication
import org.yuzu.yuzu_emu.model.Game

class GameIconFetcher(
    private val game: Game,
    private val options: Options
) : Fetcher {
    override suspend fun fetch(): FetchResult {
        return DrawableResult(
            drawable = decodeGameIcon(game.path)!!.toDrawable(options.context.resources),
            isSampled = false,
            dataSource = DataSource.DISK
        )
    }

    private fun decodeGameIcon(uri: String): Bitmap? {
        val data = NativeLibrary.getIcon(uri)
        return BitmapFactory.decodeByteArray(
            data,
            0,
            data.size,
            BitmapFactory.Options()
        )
    }

    class Factory : Fetcher.Factory<Game> {
        override fun create(data: Game, options: Options, imageLoader: ImageLoader): Fetcher =
            GameIconFetcher(data, options)
    }
}

class GameIconKeyer : Keyer<Game> {
    override fun key(data: Game, options: Options): String = data.path
}

object GameIconUtils {
    private val imageLoader = ImageLoader.Builder(YuzuApplication.appContext)
        .components {
            add(GameIconKeyer())
            add(GameIconFetcher.Factory())
        }
        .memoryCache {
            MemoryCache.Builder(YuzuApplication.appContext)
                .maxSizePercent(0.25)
                .build()
        }
        .build()

    fun loadGameIcon(game: Game, imageView: ImageView) {
        val request = ImageRequest.Builder(YuzuApplication.appContext)
            .data(game)
            .target(imageView)
            .error(R.drawable.default_icon)
            .build()
        imageLoader.enqueue(request)
    }
}