/*
 * 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.picker.clock.ui.fragment

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.view.ViewGroup.MarginLayoutParams
import androidx.cardview.widget.CardView
import androidx.core.content.ContextCompat
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat
import androidx.core.view.isVisible
import androidx.core.view.updateLayoutParams
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.get
import androidx.transition.Transition
import androidx.transition.doOnStart
import com.android.customization.module.ThemePickerInjector
import com.android.customization.picker.clock.ui.binder.ClockSettingsBinder
import com.android.systemui.shared.quickaffordance.shared.model.KeyguardPreviewConstants
import com.android.themepicker.R
import com.android.wallpaper.model.Screen
import com.android.wallpaper.module.InjectorProvider
import com.android.wallpaper.picker.AppbarFragment
import com.android.wallpaper.picker.customization.ui.binder.ScreenPreviewBinder
import com.android.wallpaper.picker.customization.ui.viewmodel.ScreenPreviewViewModel
import com.android.wallpaper.util.PreviewUtils
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.suspendCancellableCoroutine

@OptIn(ExperimentalCoroutinesApi::class)
class ClockSettingsFragment : AppbarFragment() {
    companion object {
        const val DESTINATION_ID = "clock_settings"

        @JvmStatic
        fun newInstance(): ClockSettingsFragment {
            return ClockSettingsFragment()
        }
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?,
    ): View {
        val view = inflater.inflate(R.layout.fragment_clock_settings, container, false)
        ViewCompat.setOnApplyWindowInsetsListener(view) { v, windowInsets ->
            val insets = windowInsets.getInsets(WindowInsetsCompat.Type.systemBars())
            v.updateLayoutParams<MarginLayoutParams> {
                topMargin = insets.top
                bottomMargin = insets.bottom
            }
            WindowInsetsCompat.CONSUMED
        }
        setUpToolbar(view)

        val context = requireContext()
        val activity = requireActivity()
        val injector = InjectorProvider.getInjector() as ThemePickerInjector

        val lockScreenView: CardView = view.requireViewById(R.id.lock_preview)
        val wallpaperColorsRepository = injector.getWallpaperColorsRepository()
        val displayUtils = injector.getDisplayUtils(context)
        ScreenPreviewBinder.bind(
            activity = activity,
            previewView = lockScreenView,
            viewModel =
                ScreenPreviewViewModel(
                    previewUtils =
                        PreviewUtils(
                            context = context,
                            authority =
                                resources.getString(
                                    com.android.wallpaper.R.string
                                        .lock_screen_preview_provider_authority
                                ),
                            screen = Screen.LOCK_SCREEN,
                        ),
                    wallpaperInfoProvider = { forceReload ->
                        suspendCancellableCoroutine { continuation ->
                            injector
                                .getCurrentWallpaperInfoFactory(context)
                                .createCurrentWallpaperInfos(context, forceReload) {
                                    homeWallpaper,
                                    lockWallpaper,
                                    _ ->
                                    continuation.resume(lockWallpaper ?: homeWallpaper, null)
                                }
                        }
                    },
                    onWallpaperColorChanged = { colors ->
                        wallpaperColorsRepository.setLockWallpaperColors(colors)
                    },
                    initialExtrasProvider = {
                        Bundle().apply {
                            // Hide the clock from the system UI rendered preview so we can
                            // place the carousel on top of it.
                            putBoolean(KeyguardPreviewConstants.KEY_HIDE_CLOCK, true)
                        }
                    },
                    wallpaperInteractor = injector.getWallpaperInteractor(requireContext()),
                    screen = Screen.LOCK_SCREEN,
                ),
            lifecycleOwner = this,
            offsetToStart = displayUtils.isSingleDisplayOrUnfoldedHorizontalHinge(activity),
            onWallpaperPreviewDirty = { activity.recreate() },
        )

        ClockSettingsBinder.bind(
            view,
            ViewModelProvider(
                    this,
                    injector.getClockSettingsViewModelFactory(
                        context,
                        injector.getWallpaperColorsRepository(),
                    ),
                )
                .get(),
            injector.getClockViewFactory(activity),
            viewLifecycleOwner,
        )

        (returnTransition as? Transition)?.doOnStart { lockScreenView.isVisible = false }

        return view
    }

    override fun getDefaultTitle(): CharSequence {
        return requireContext().getString(R.string.clock_color_and_size_title)
    }

    override fun getToolbarTextColor(): Int {
        return ContextCompat.getColor(
            requireContext(),
            com.android.wallpaper.R.color.system_on_surface,
        )
    }
}