import "dart:async";

import 'package:flutter/material.dart';
import "package:photos/models/backup/backup_item.dart";
import "package:photos/models/backup/backup_item_status.dart";
import "package:photos/models/preview/preview_item.dart";
import "package:photos/models/preview/preview_item_status.dart";
import "package:photos/services/preview_video_store.dart";
import 'package:photos/theme/ente_theme.dart';
import "package:photos/ui/viewer/file/detail_page.dart";
import "package:photos/ui/viewer/file/thumbnail_widget.dart";
import "package:photos/utils/dialog_util.dart";
import "package:photos/utils/file_uploader.dart";
import "package:photos/utils/navigation_util.dart";

class BackupItemCard extends StatefulWidget {
  const BackupItemCard({
    super.key,
    required this.item,
    required this.preview,
  });

  final BackupItem item;
  final PreviewItem? preview;

  @override
  State<BackupItemCard> createState() => _BackupItemCardState();
}

class _BackupItemCardState extends State<BackupItemCard> {
  String? folderName;
  bool showThumbnail = false;

  @override
  void initState() {
    super.initState();
    folderName = widget.item.file.deviceFolder ?? '';

    // Delay rendering of the thumbnail for 0.5 seconds
    Timer(const Duration(milliseconds: 500), () {
      if (mounted) {
        setState(() {
          showThumbnail = true;
        });
      }
    });
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final colorScheme = getEnteColorScheme(context);
    final hasError = widget.item.error != null ||
        widget.preview?.status == PreviewItemStatus.failed;

    return GestureDetector(
      onTap: () {
        routeToPage(
          context,
          DetailPage(
            DetailPageConfiguration(
              List.unmodifiable([widget.item.file]),
              0,
              "collection",
            ),
          ),
          forceCustomPageRoute: true,
        );
      },
      child: Container(
        height: 60,
        margin: const EdgeInsets.symmetric(vertical: 10),
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(4),
          border: Border.all(
            color: colorScheme.fillFaint.withOpacity(0.08),
            width: 1,
          ),
        ),
        child: Row(
          children: [
            SizedBox(
              width: 60,
              height: 60,
              child: ClipRRect(
                borderRadius: BorderRadius.circular(4),
                child: showThumbnail
                    ? ThumbnailWidget(
                        widget.item.file,
                        shouldShowSyncStatus: false,
                      )
                    : Container(
                        color: colorScheme.fillFaint, // Placeholder color
                      ),
              ),
            ),
            const SizedBox(width: 12),
            Expanded(
              child: Column(
                mainAxisSize: MainAxisSize.min,
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    widget.item.file.displayName,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: TextStyle(
                      fontSize: 16,
                      height: 20 / 16,
                      color: Theme.of(context).brightness == Brightness.light
                          ? const Color(0xFF000000)
                          : const Color(0xFFFFFFFF),
                    ),
                  ),
                  const SizedBox(height: 4),
                  Text(
                    folderName ?? "",
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: TextStyle(
                      fontSize: 14,
                      height: 17 / 14,
                      color: Theme.of(context).brightness == Brightness.light
                          ? const Color.fromRGBO(0, 0, 0, 0.7)
                          : const Color.fromRGBO(255, 255, 255, 0.7),
                    ),
                  ),
                ],
              ),
            ),
            if (hasError) const SizedBox(width: 12),
            if (hasError)
              SizedBox(
                height: 48,
                width: 48,
                child: IconButton(
                  icon: Icon(
                    Icons.error_outline,
                    color: getEnteColorScheme(context).fillBase,
                  ),
                  onPressed: () {
                    String errorMessage = "";
                    if (widget.item.error is Exception) {
                      final Exception ex = widget.item.error as Exception;
                      errorMessage = "Error: " +
                          ex.runtimeType.toString() +
                          " - " +
                          ex.toString();
                    } else if (widget.item.error != null) {
                      errorMessage = widget.item.error.toString();
                    } else if (widget.preview?.error != null) {
                      errorMessage = widget.preview!.error!.toString();
                    }
                    showErrorDialog(
                      context,
                      'Upload failed',
                      errorMessage,
                    );
                  },
                ),
              ),
            if (hasError) const SizedBox(width: 12),
            SizedBox(
              height: 48,
              width: 48,
              child: Center(
                child: switch (widget.item.status) {
                  BackupItemStatus.uploading => SizedBox(
                      width: 16,
                      height: 16,
                      child: CircularProgressIndicator(
                        strokeWidth: 2.0,
                        color: colorScheme.primary700,
                      ),
                    ),
                  BackupItemStatus.uploaded => widget.preview != null
                      ? switch (widget.preview!.status) {
                          PreviewItemStatus.uploading ||
                          PreviewItemStatus.compressing =>
                            SizedBox(
                              width: 24,
                              height: 24,
                              child: Image.asset(
                                "assets/processing-video.png",
                              ),
                            ),
                          PreviewItemStatus.failed => GestureDetector(
                              onTap: () => PreviewVideoStore.instance
                                  .chunkAndUploadVideo(
                                context,
                                widget.item.file,
                                true,
                              ),
                              child: SizedBox(
                                width: 24,
                                height: 24,
                                child: Image.asset(
                                  "assets/processing-video-failed.png",
                                ),
                              ),
                            ),
                          PreviewItemStatus.retry ||
                          PreviewItemStatus.inQueue =>
                            SizedBox(
                              width: 24,
                              height: 24,
                              child: Image.asset(
                                "assets/video-processing-queued.png",
                              ),
                            ),
                          PreviewItemStatus.uploaded => SizedBox(
                              width: 24,
                              height: 24,
                              child: Image.asset(
                                "assets/processing-video-success.png",
                              ),
                            ),
                        }
                      : const SizedBox(
                          width: 24,
                          height: 24,
                          child: Icon(
                            Icons.check,
                            color: Color(0xFF00B33C),
                          ),
                        ),
                  BackupItemStatus.inQueue => SizedBox(
                      width: 24,
                      height: 24,
                      child: Icon(
                        Icons.history,
                        color: Theme.of(context).brightness == Brightness.light
                            ? const Color.fromRGBO(0, 0, 0, .6)
                            : const Color.fromRGBO(255, 255, 255, .6),
                      ),
                    ),
                  BackupItemStatus.retry => IconButton(
                      icon: const Icon(
                        Icons.sync,
                        color: Color(0xFFFDB816),
                      ),
                      onPressed: () async {
                        await FileUploader.instance.upload(
                          widget.item.file,
                          widget.item.collectionID,
                        );
                      },
                    ),
                  BackupItemStatus.inBackground => SizedBox(
                      width: 16,
                      height: 16,
                      child: CircularProgressIndicator(
                        strokeWidth: 2.0,
                        color: Theme.of(context).brightness == Brightness.light
                            ? const Color.fromRGBO(0, 0, 0, .6)
                            : const Color.fromRGBO(255, 255, 255, .6),
                      ),
                    ),
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}