/*
 * Copyright (C) 2025 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.contactspicker.ui.components

import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.WindowInsets
import androidx.compose.foundation.layout.displayCutout
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.statusBars
import androidx.compose.foundation.layout.union
import androidx.compose.foundation.layout.windowInsetsPadding
import androidx.compose.material3.BottomSheetScaffold
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.SheetValue
import androidx.compose.material3.rememberBottomSheetScaffoldState
import androidx.compose.material3.rememberStandardBottomSheetState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalConfiguration
import androidx.compose.ui.platform.testTag
import androidx.compose.ui.unit.dp

internal const val BOTTOM_SHEET_TEST_TAG = "bottom_sheet"
internal const val BOTTOM_SHEET_PEEK_HEIGHT_RATIO = 0.75f

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun ContactsPickerBottomSheet(onDismissRequest: () -> Unit) {
    val peekHeight = LocalConfiguration.current.screenHeightDp.dp * BOTTOM_SHEET_PEEK_HEIGHT_RATIO
    val bottomSheetState =
        rememberStandardBottomSheetState(
            initialValue = SheetValue.PartiallyExpanded,
            skipHiddenState = false,
        )
    val scaffoldState = rememberBottomSheetScaffoldState(bottomSheetState = bottomSheetState)

    LaunchedEffect(bottomSheetState.currentValue) {
        if (bottomSheetState.currentValue == SheetValue.Hidden) {
            onDismissRequest()
        }
    }

    BottomSheetScaffold(
        modifier =
            Modifier.windowInsetsPadding(WindowInsets.statusBars.union(WindowInsets.displayCutout)),
        scaffoldState = scaffoldState,
        sheetPeekHeight = peekHeight,
        sheetShape = MaterialTheme.shapes.extraLarge,
        sheetContainerColor = MaterialTheme.colorScheme.surfaceContainer,
        sheetContentColor = MaterialTheme.colorScheme.onSurface,
        sheetShadowElevation = 8.dp,
        containerColor = Color.Transparent,
        sheetContent = {
            Column(
                modifier =
                    Modifier.fillMaxSize().padding(vertical = 8.dp).testTag(BOTTOM_SHEET_TEST_TAG),
                horizontalAlignment = Alignment.CenterHorizontally,
            ) {
                TopBar()
                Spacer(modifier = Modifier.fillMaxSize())
            }
        },
    ) { /* Empty content of the screen that appears behind the bottom sheet. */
    }
}