package com.example.ui.components

import androidx.compose.foundation.background
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.width
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Info
import androidx.compose.material3.AlertDialog
import androidx.compose.material3.Button
import androidx.compose.material3.ButtonDefaults
import androidx.compose.material3.Divider
import androidx.compose.material3.HorizontalDivider
import androidx.compose.material3.Icon
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.platform.testTag
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.example.data.model.MediaItemData
import com.example.ui.theme.AccentViolet
import com.example.ui.theme.DividerSubtle
import com.example.ui.theme.SurfaceElevated
import com.example.ui.theme.TextPrimary
import com.example.ui.theme.TextSecondary
import java.text.SimpleDateFormat
import java.util.Date
import java.util.Locale

@Composable
fun MediaDetailDialog(
  item: MediaItemData,
  onDismiss: () -> Unit
) {
  val dateFormatted = rememberDate(item.dateAdded)

  AlertDialog(
    onDismissRequest = onDismiss,
    confirmButton = {
      Button(
        onClick = onDismiss,
        colors = ButtonDefaults.buttonColors(containerColor = AccentViolet),
        modifier = Modifier.testTag("media_detail_close_btn")
      ) {
        Text("Close", color = androidx.compose.ui.graphics.Color.Black, fontWeight = FontWeight.Bold)
      }
    },
    title = {
      Row(verticalAlignment = Alignment.CenterVertically) {
        Icon(
          imageVector = Icons.Default.Info,
          contentDescription = null,
          tint = AccentViolet
        )
        Spacer(modifier = Modifier.width(8.dp))
        Text(
          text = "Media Details",
          color = TextPrimary,
          style = MaterialTheme.typography.titleLarge,
          fontWeight = FontWeight.Bold
        )
      }
    },
    text = {
      Column(
        modifier = Modifier
          .fillMaxWidth()
          .padding(vertical = 4.dp)
      ) {
        DetailRow("Title", item.title)
        DetailRow("Type", if (item.isVideo) "Video" else "Audio")
        if (!item.isVideo) {
          DetailRow("Artist", item.artist)
          DetailRow("Album", item.album)
        }
        DetailRow("Duration", item.formattedDuration)
        if (item.isVideo && item.width > 0 && item.height > 0) {
          DetailRow("Resolution", "${item.width} x ${item.height}")
        }
        DetailRow("Size", item.formattedSize)
        DetailRow("MIME Type", item.mimeType.ifBlank { "Unknown" })
        DetailRow("Folder", item.folderName)
        if (item.relativePath.isNotBlank()) {
          DetailRow("Location", item.relativePath)
        }
        DetailRow("Date Added", dateFormatted)
      }
    },
    containerColor = SurfaceElevated,
    shape = RoundedCornerShape(16.dp),
    modifier = Modifier.testTag("media_detail_dialog")
  )
}

@Composable
private fun DetailRow(label: String, value: String) {
  Column(modifier = Modifier.padding(vertical = 4.dp)) {
    Text(
      text = label,
      color = TextSecondary,
      fontSize = 11.sp,
      fontWeight = FontWeight.SemiBold
    )
    Text(
      text = value,
      color = TextPrimary,
      fontSize = 13.sp,
      fontWeight = FontWeight.Normal
    )
    Spacer(modifier = Modifier.height(2.dp))
    HorizontalDivider(color = DividerSubtle.copy(alpha = 0.5f), thickness = 0.5.dp)
  }
}

private fun rememberDate(timestampSec: Long): String {
  if (timestampSec <= 0) return "Recent"
  val millis = if (timestampSec < 10000000000L) timestampSec * 1000L else timestampSec
  val sdf = SimpleDateFormat("MMM dd, yyyy HH:mm", Locale.getDefault())
  return sdf.format(Date(millis))
}