/*
 * Minosoft
 * Copyright (C) 2021 Moritz Zwerger
 *
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 * This software is not affiliated with Mojang AB, the original developer of Minecraft.
 */

package de.bixilon.minosoft.data.assets

import de.bixilon.minosoft.data.registries.ResourceLocation
import java.io.FileNotFoundException
import java.io.InputStream
import java.net.URL

class JarAssetsManager(
    private val clazz: Class<*>,
    override val namespaces: Set<String>, // ToDo
) : AssetsManager {

    override fun getAssetURL(resourceLocation: ResourceLocation): URL {
        return clazz.getResource("/assets/${resourceLocation.namespace}/${resourceLocation.path}") ?: throw FileNotFoundException("Can not find $resourceLocation")
    }

    override fun getAssetSize(resourceLocation: ResourceLocation): Long {
        val inputStream = readAssetAsStream(resourceLocation)
        val size = inputStream.available()
        inputStream.close()
        return size.toLong()
    }

    override fun readAssetAsStream(resourceLocation: ResourceLocation): InputStream {
        return clazz.getResourceAsStream("/assets/${resourceLocation.namespace}/${resourceLocation.path}") ?: throw FileNotFoundException("Can not find jar asset $resourceLocation in ${clazz.simpleName}")
    }
}
