package eu.kanade.presentation.manga.components

import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.pluralStringResource
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.style.TextOverflow
import androidx.compose.ui.unit.dp
import eu.kanade.tachiyomi.R
import tachiyomi.presentation.core.util.secondaryItemAlpha

@Composable
fun ChapterHeader(
    enabled: Boolean,
    chapterCount: Int?,
    missingChapterCount: Int?,
    onClick: () -> Unit,
) {
    Column(
        modifier = Modifier
            .fillMaxWidth()
            .clickable(
                enabled = enabled,
                onClick = onClick,
            )
            .padding(horizontal = 16.dp, vertical = 4.dp),
        verticalArrangement = Arrangement.spacedBy(4.dp),
    ) {
        Text(
            text = if (chapterCount == null) {
                stringResource(R.string.chapters)
            } else {
                pluralStringResource(id = R.plurals.manga_num_chapters, count = chapterCount, chapterCount)
            },
            style = MaterialTheme.typography.titleMedium,
            color = MaterialTheme.colorScheme.onBackground,
        )

        MissingChaptersWarning(missingChapterCount)
    }
}

@Composable
private fun MissingChaptersWarning(count: Int?) {
    val text = when {
        count == null -> stringResource(R.string.missing_chapters_unknown)
        count > 0 -> pluralStringResource(id = R.plurals.missing_chapters, count = count, count)
        else -> return
    }

    Text(
        modifier = Modifier.secondaryItemAlpha(),
        text = text,
        maxLines = 1,
        overflow = TextOverflow.Ellipsis,
        style = MaterialTheme.typography.bodySmall,
        color = MaterialTheme.colorScheme.error,
    )
}
