/*
 * Copyright (c) 2023 New Vector Ltd
 *
 * 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 io.element.android.libraries.designsystem.atomic.pages

import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.systemBarsPadding
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import io.element.android.libraries.designsystem.preview.ElementPreviewDark
import io.element.android.libraries.designsystem.preview.ElementPreviewLight
import io.element.android.libraries.designsystem.theme.components.Text
import io.element.android.libraries.theme.ElementTheme

/**
 * @param modifier Classical modifier.
 * @param header optional header.
 * @param footer optional footer.
 * @param content main content.
 */
@Composable
fun HeaderFooterPage(
    modifier: Modifier = Modifier,
    header: @Composable () -> Unit = {},
    footer: @Composable () -> Unit = {},
    content: @Composable () -> Unit = {},
) {
    Column(
        modifier = modifier
            .fillMaxSize()
            .systemBarsPadding()
            .padding(all = 20.dp),
    ) {
        // Header
        header()
        // Content
        Column(
            modifier = Modifier
                .weight(1f)
                .fillMaxWidth(),
        ) {
            content()
        }
        // Footer
        footer()
    }
}

@Preview
@Composable
internal fun HeaderFooterPageLightPreview() =
    ElementPreviewLight { ContentToPreview() }

@Preview
@Composable
internal fun HeaderFooterPageDarkPreview() =
    ElementPreviewDark { ContentToPreview() }

@Composable
private fun ContentToPreview() {
    HeaderFooterPage(
        content = {
            Box(
                Modifier
                    .fillMaxSize(),
                contentAlignment = Alignment.Center
            ) {
                Text(
                    text = "Content",
                    style = ElementTheme.typography.fontHeadingXlBold
                )
            }
        },
        header = {
            Box(
                Modifier
                    .fillMaxWidth(),
                contentAlignment = Alignment.Center
            ) {
                Text(
                    text = "Header",
                    style = ElementTheme.typography.fontHeadingXlBold
                )
            }
        },
        footer = {
            Box(
                Modifier
                    .fillMaxWidth(),
                contentAlignment = Alignment.Center
            ) {
                Text(
                    text = "Footer",
                    style = ElementTheme.typography.fontHeadingXlBold
                )
            }
        }
    )
}
