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/*
* 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.customization.model.grid.ui.viewmodel
import android.annotation.SuppressLint
import android.content.Context
import android.content.res.Resources
import androidx.lifecycle.ViewModel
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.viewModelScope
import com.android.customization.model.ResourceConstants
import com.android.customization.model.grid.domain.interactor.GridInteractor
import com.android.customization.model.grid.shared.model.GridOptionItemsModel
import com.android.wallpaper.picker.common.text.ui.viewmodel.Text
import com.android.wallpaper.picker.option.ui.viewmodel.OptionItemViewModel
import kotlinx.coroutines.flow.Flow
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.launch
class GridScreenViewModel(
context: Context,
private val interactor: GridInteractor,
) : ViewModel() {
@SuppressLint("StaticFieldLeak") // We're not leaking this context as it is the app context.
private val applicationContext = context.applicationContext
val optionItems: Flow<List<OptionItemViewModel<GridIconViewModel>>> =
interactor.options.map { model -> toViewModel(model) }
private fun toViewModel(
model: GridOptionItemsModel,
): List<OptionItemViewModel<GridIconViewModel>> {
val iconShapePath =
applicationContext.resources.getString(
Resources.getSystem()
.getIdentifier(
ResourceConstants.CONFIG_ICON_MASK,
"string",
ResourceConstants.ANDROID_PACKAGE,
)
)
return when (model) {
is GridOptionItemsModel.Loaded ->
model.options.map { option ->
val text = Text.Loaded(option.name)
OptionItemViewModel<GridIconViewModel>(
key =
MutableStateFlow("${option.cols}x${option.rows}") as StateFlow<String>,
payload =
GridIconViewModel(
columns = option.cols,
rows = option.rows,
path = iconShapePath,
),
text = text,
isSelected = option.isSelected,
onClicked =
option.isSelected.map { isSelected ->
if (!isSelected) {
{ viewModelScope.launch { option.onSelected() } }
} else {
null
}
},
)
}
is GridOptionItemsModel.Error -> emptyList()
}
}
class Factory(
context: Context,
private val interactor: GridInteractor,
) : ViewModelProvider.Factory {
private val applicationContext = context.applicationContext
@Suppress("UNCHECKED_CAST")
override fun <T : ViewModel> create(modelClass: Class<T>): T {
return GridScreenViewModel(
context = applicationContext,
interactor = interactor,
)
as T
}
}
}
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