package com.one4studio.wallpaperbridge

import android.content.ClipData
import android.content.Context
import android.content.Intent
import android.net.Uri
import androidx.core.content.FileProvider
import java.io.File

/** Copyable AndroidX helper. Connect with StartActivityForResult, then notify after a successful Home apply. */
object One4HomeWallpaperBridge {
    const val HOME_PACKAGE = "com.one4studio.one4home"
    fun connectionIntent(homePackage: String = HOME_PACKAGE): Intent = Intent().setClassName(
        homePackage, "com.one4studio.one4home.ConnectWallpaperActivity")

    /** Call when expiring a shared cache file, after allowing time for asynchronous delivery. */
    fun revoke(context: Context, file: File, homePackage: String = HOME_PACKAGE) {
        val uri = FileProvider.getUriForFile(context, "${context.packageName}.one4home.bridge", file)
        if (android.os.Build.VERSION.SDK_INT >= 26) context.revokeUriPermission(homePackage, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION)
        else context.revokeUriPermission(uri, Intent.FLAG_GRANT_READ_URI_PERMISSION)
    }

    /** The exact file applied to FLAG_SYSTEM; wallpaperId is WallpaperManager.setStream's returned ID. */
    fun notifyApplied(context: Context, image: File, wallpaperId: Int, depth: File? = null,
        mimeType: String = "image/jpeg", homePackage: String = HOME_PACKAGE) {
        require(wallpaperId > 0) { "A successful system wallpaper apply is required" }
        require(mimeType.startsWith("image/"))
        val authority = "${context.packageName}.one4home.bridge"
        val uri = FileProvider.getUriForFile(context, authority, image)
        val depthUri = depth?.let { FileProvider.getUriForFile(context, authority, it) }
        val intent = Intent("com.one4studio.one4home.IMPORT_STATIC_WALLPAPER_SOURCE")
            .setClassName(homePackage, "com.one4studio.one4home.WallpaperSourceImportReceiver")
            .setDataAndType(uri, mimeType)
            .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
            .putExtra("com.one4studio.one4home.extra.WALLPAPER_ID", wallpaperId)
            .putExtra("com.one4studio.one4home.extra.REQUEST_DEPTH", false)
        intent.clipData = ClipData.newRawUri("Applied wallpaper", uri).apply {
            depthUri?.let { addItem(ClipData.Item(it)) }
        }
        depthUri?.let { intent.putExtra("com.one4studio.one4home.extra.DEPTH_SOURCE", it.toString()) }
        // Manifest receivers do not receive Activity-lifetime URI grants reliably on all Android versions.
        context.grantUriPermission(homePackage, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION)
        depthUri?.let { context.grantUriPermission(homePackage, it, Intent.FLAG_GRANT_READ_URI_PERMISSION) }
        context.sendBroadcast(intent)
    }
}