Загрузка данных


package ru.notesapp.ui

import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.material3.Card
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.style.TextOverflow
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import ru.notesapp.domain.Note
import ru.notesapp.domain.NoteType
import ru.notesapp.domain.summary

@Composable
fun NoteCard(
    note: Note,
    onClick: () -> Unit,
    modifier: Modifier = Modifier,
) {
    Card(
        modifier = modifier
            .fillMaxWidth()
            .clickable { onClick() }
    ) {
        Column {
            // Картинка — только если тип Image и url заполнен
            if (note.type is NoteType.Image && !note.imageUrl.isNullOrBlank()) {
                NoteImage(
                    url = note.imageUrl,
                    contentDescription = note.title,
                    modifier = Modifier
                        .fillMaxWidth()
                        .height(120.dp)
                )
            }

            Row(
                modifier = Modifier
                    .fillMaxWidth()
                    .padding(16.dp),
                verticalAlignment = Alignment.Top
            ) {
                Box(
                    modifier = Modifier
                        .padding(top = 6.dp)
                        .size(12.dp)
                        .background(color = note.type.dotColor(), shape = CircleShape)
                )

                Spacer(modifier = Modifier.width(12.dp))

                Column(
                    modifier = Modifier.weight(1f),
                    verticalArrangement = Arrangement.spacedBy(4.dp)
                ) {
                    Text(
                        text = note.title,
                        style = MaterialTheme.typography.titleMedium,
                        maxLines = 1,
                        overflow = TextOverflow.Ellipsis
                    )
                    Text(
                        text = note.summary(),
                        style = MaterialTheme.typography.bodyMedium,
                        maxLines = 2,
                        overflow = TextOverflow.Ellipsis
                    )
                    Text(
                        text = note.type.label(),
                        style = MaterialTheme.typography.labelSmall,
                        color = MaterialTheme.colorScheme.outline,
                        modifier = Modifier.align(Alignment.End)
                    )
                }
            }
        }
    }
}

private fun NoteType.dotColor(): Color = when (this) {
    is NoteType.Text  -> Color(0xFF3592C0)
    is NoteType.Image -> Color(0xFF3DDC84)
    is NoteType.Audio -> Color(0xFFFFA726)
}

private fun NoteType.label(): String = when (this) {
    is NoteType.Text  -> "ТЕКСТ"
    is NoteType.Image -> "КАРТИНКА"
    is NoteType.Audio -> "АУДИО"
}

@Preview(showBackground = true)
@Composable
private fun NoteCardPreview() {
    MaterialTheme {
        NoteCard(
            note = Note(
                id = 1L,
                title = "Очень длинный заголовок, который точно не влезет в одну строку",
                content = "Очень длинный текст заметки, который должен обрезаться после двух строк и показать многоточие в конце",
                createdAt = 0L,
                type = NoteType.Text
            ),
            onClick = {}
        )
    }
}