/*
 * Copyright (C) 2024 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */
package com.android.tv.settings.util

import android.app.slice.SliceManager
import android.content.Context
import android.net.Uri
import android.util.Log
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext

object SliceUtilsKt {
    private const val TAG = "SliceUtilsKt"
    /**
     * Checks if the slice is available in the background if needed
     *
     * @param context                  Current context of the app
     * @param uri                      Settings slice uri
     * @param topLevelSettingsSliceUri Top level settings slice uri, if null, use provided uri to
     * deduce top level settings slice uri.
     * @return returns true if slice is enabled, false otherwise
     */
    @JvmStatic
    suspend fun isSettingsSliceEnabled(context: Context, uri: String?,
                                       topLevelSettingsSliceUri: String?): Boolean {
        if (uri == null) {
            return false
        }
        val sliceManager = context.getSystemService(SliceManager::class.java)
                ?: return false
        return withContext(Dispatchers.IO) {
            val topLevelSettingsSlice = if (topLevelSettingsSliceUri == null) {
                Uri.parse(uri).buildUpon().path("/").build()
            } else {
                Uri.parse(ResourcesUtil.getString(context, topLevelSettingsSliceUri))
            }
            val enabledSlicesUri = sliceManager.getSliceDescendants(topLevelSettingsSlice)
            for (sliceUri in enabledSlicesUri) {
                Log.i(TAG, "Enabled slice: $sliceUri")
                if (sliceUri.toString() == uri) {
                    return@withContext true
                }
            }
            return@withContext false
        }
    }
}