/*
 * Copyright (C) 2023 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.intentresolver

import androidx.lifecycle.ViewModel
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.viewmodel.CreationExtras
import com.android.intentresolver.contentpreview.BasePreviewViewModel
import com.android.intentresolver.contentpreview.ImageLoader
import com.android.intentresolver.contentpreview.PreviewDataProvider

/** A test content preview model that supports image loader override. */
class TestContentPreviewViewModel(
    private val viewModel: BasePreviewViewModel,
    private val imageLoader: ImageLoader? = null,
) : BasePreviewViewModel() {
    override fun createOrReuseProvider(
        chooserRequest: ChooserRequestParameters
    ): PreviewDataProvider = viewModel.createOrReuseProvider(chooserRequest)

    override fun createOrReuseImageLoader(): ImageLoader =
        imageLoader ?: viewModel.createOrReuseImageLoader()

    companion object {
        fun wrap(
            factory: ViewModelProvider.Factory,
            imageLoader: ImageLoader?,
        ): ViewModelProvider.Factory =
            object : ViewModelProvider.Factory {
                @Suppress("UNCHECKED_CAST")
                override fun <T : ViewModel> create(
                    modelClass: Class<T>,
                    extras: CreationExtras
                ): T {
                    return TestContentPreviewViewModel(
                        factory.create(modelClass, extras) as BasePreviewViewModel,
                        imageLoader,
                    ) as T
                }
            }
    }
}