Magisk/app/src/main/java/com/topjohnwu/magisk/core/download/Subject.kt

package com.topjohnwu.magisk.core.download

import android.content.Context
import android.net.Uri
import android.os.Parcelable
import androidx.core.net.toUri
import com.topjohnwu.magisk.core.Info
import com.topjohnwu.magisk.core.model.ManagerJson
import com.topjohnwu.magisk.core.model.StubJson
import com.topjohnwu.magisk.core.model.module.OnlineModule
import com.topjohnwu.magisk.core.utils.MediaStoreUtils
import com.topjohnwu.magisk.ktx.cachedFile
import com.topjohnwu.magisk.ktx.get
import kotlinx.parcelize.IgnoredOnParcel
import kotlinx.parcelize.Parcelize

private fun cachedFile(name: String) = get<Context>().cachedFile(name).apply { delete() }.toUri()

sealed class Subject : Parcelable {

    abstract val url: String
    abstract val file: Uri
    abstract val action: Action
    abstract val title: String

    @Parcelize
    class Module(
        val module: OnlineModule,
        override val action: Action
    ) : Subject() {
        override val url: String get() = module.zip_url
        override val title: String get() = module.downloadFilename

        @IgnoredOnParcel
        override val file by lazy {
            MediaStoreUtils.getFile(title).uri
        }
    }

    @Parcelize
    class Manager(
        private val app: ManagerJson = Info.remote.app,
        val stub: StubJson = Info.remote.stub
    ) : Subject() {
        override val action get() = Action.Download
        override val title: String get() = "MagiskManager-${app.version}(${app.versionCode})"
        override val url: String get() = app.link

        @IgnoredOnParcel
        override val file by lazy {
            cachedFile("manager.apk")
        }

    }
}

sealed class Action : Parcelable {
    @Parcelize
    object Flash : Action()

    @Parcelize
    object Download : Action()
}