import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/shared/models/asset.dart';
import 'package:immich_mobile/shared/models/exif_info.dart';
import 'package:immich_mobile/shared/ui/drag_sheet.dart';
import 'package:latlong2/latlong.dart';
import 'package:immich_mobile/utils/bytes_units.dart';

class ExifBottomSheet extends HookConsumerWidget {
  final Asset assetDetail;

  const ExifBottomSheet({Key? key, required this.assetDetail})
      : super(key: key);

  bool get showMap =>
      assetDetail.exifInfo?.latitude != null &&
      assetDetail.exifInfo?.longitude != null;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final ExifInfo? exifInfo = assetDetail.exifInfo;

    buildMap() {
      return Padding(
        padding: const EdgeInsets.symmetric(vertical: 16.0),
        child: LayoutBuilder(
          builder: (context, constraints) {
            return Container(
              height: 150,
              width: constraints.maxWidth,
              decoration: const BoxDecoration(
                borderRadius: BorderRadius.all(Radius.circular(15)),
              ),
              child: FlutterMap(
                options: MapOptions(
                  interactiveFlags: InteractiveFlag.none,
                  center: LatLng(
                    exifInfo?.latitude ?? 0,
                    exifInfo?.longitude ?? 0,
                  ),
                  zoom: 16.0,
                ),
                layers: [
                  TileLayerOptions(
                    urlTemplate:
                        "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
                    subdomains: ['a', 'b', 'c'],
                    attributionBuilder: (_) {
                      return const Text(
                        "© OpenStreetMap",
                        style: TextStyle(fontSize: 10),
                      );
                    },
                  ),
                  MarkerLayerOptions(
                    markers: [
                      Marker(
                        anchorPos: AnchorPos.align(AnchorAlign.top),
                        point: LatLng(
                          exifInfo?.latitude ?? 0,
                          exifInfo?.longitude ?? 0,
                        ),
                        builder: (ctx) => const Image(
                          image: AssetImage('assets/location-pin.png'),
                        ),
                      ),
                    ],
                  ),
                ],
              ),
            );
          },
        ),
      );
    }

    final textColor = Theme.of(context).primaryColor;

    buildLocationText() {
      return Text(
        "${exifInfo?.city}, ${exifInfo?.state}",
        style: TextStyle(
          fontSize: 12,
          fontWeight: FontWeight.bold,
          color: textColor,
        ),
      );
    }

    buildSizeText(Asset a) {
      String resolution = a.width != null && a.height != null
          ? "${a.height} x ${a.width}  "
          : "";
      String fileSize = a.exifInfo?.fileSize != null
          ? formatBytes(a.exifInfo!.fileSize!)
          : "";
      String text = resolution + fileSize;
      return text.isEmpty ? null : Text(text);
    }

    buildDragHeader() {
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: const [
          SizedBox(height: 12),
          Align(
            alignment: Alignment.center,
            child: CustomDraggingHandle(),
          ),
          SizedBox(height: 12),
        ],
      );
    }

    buildLocation() {
      // Guard no lat/lng
      if (!showMap) {
        return Container();
      }

      return Column(
        children: [
          // Location
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(
                "exif_bottom_sheet_location",
                style: TextStyle(fontSize: 11, color: textColor),
              ).tr(),
              buildMap(),
              if (exifInfo != null &&
                  exifInfo.city != null &&
                  exifInfo.state != null)
                buildLocationText(),
              Text(
                "${exifInfo!.latitude!.toStringAsFixed(4)}, ${exifInfo.longitude!.toStringAsFixed(4)}",
                style: const TextStyle(fontSize: 12),
              )
            ],
          ),
        ],
      );
    }

    buildDate() {
      final fileCreatedAt = assetDetail.fileCreatedAt.toLocal();
      final date = DateFormat.yMMMEd().format(fileCreatedAt);
      final time = DateFormat.jm().format(fileCreatedAt);

      return Text(
        '$date • $time',
        style: const TextStyle(
          fontWeight: FontWeight.bold,
          fontSize: 14,
        ),
      );
    }

    buildDetail() {
      return Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Padding(
            padding: const EdgeInsets.only(bottom: 8.0),
            child: Text(
              "exif_bottom_sheet_details",
              style: TextStyle(fontSize: 11, color: textColor),
            ).tr(),
          ),
          ListTile(
            contentPadding: const EdgeInsets.all(0),
            dense: true,
            leading: const Icon(Icons.image),
            title: Text(
              assetDetail.fileName,
              style: TextStyle(
                fontWeight: FontWeight.bold,
                color: textColor,
              ),
            ),
            subtitle: buildSizeText(assetDetail),
          ),
          if (exifInfo?.make != null)
            ListTile(
              contentPadding: const EdgeInsets.all(0),
              dense: true,
              leading: const Icon(Icons.camera),
              title: Text(
                "${exifInfo!.make} ${exifInfo.model}",
                style: TextStyle(
                  color: textColor,
                  fontWeight: FontWeight.bold,
                ),
              ),
              subtitle: Text(
                "ƒ/${exifInfo.fNumber}   ${exifInfo.exposureTime}   ${exifInfo.focalLength} mm   ISO${exifInfo.iso} ",
              ),
            ),
        ],
      );
    }

    return SingleChildScrollView(
      child: Card(
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(15),
            topRight: Radius.circular(15),
          ),
        ),
        margin: const EdgeInsets.all(0),
        child: Container(
          margin: const EdgeInsets.symmetric(horizontal: 8.0),
          child: LayoutBuilder(
            builder: (context, constraints) {
              if (constraints.maxWidth > 600) {
                // Two column
                return Padding(
                  padding: const EdgeInsets.symmetric(horizontal: 12.0),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.stretch,
                    children: [
                      buildDragHeader(),
                      buildDate(),
                      const SizedBox(height: 32.0),
                      Row(
                        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Flexible(
                            flex: showMap ? 5 : 0,
                            child: Padding(
                              padding: const EdgeInsets.only(right: 8.0),
                              child: buildLocation(),
                            ),
                          ),
                          Flexible(
                            flex: 5,
                            child: Padding(
                              padding: const EdgeInsets.only(left: 8.0),
                              child: buildDetail(),
                            ),
                          ),
                        ],
                      ),
                      const SizedBox(height: 50),
                    ],
                  ),
                );
              }

              // One column
              return Column(
                crossAxisAlignment: CrossAxisAlignment.stretch,
                children: [
                  buildDragHeader(),
                  buildDate(),
                  const SizedBox(height: 16.0),
                  if (showMap)
                    Divider(
                      thickness: 1,
                      color: Colors.grey[600],
                    ),
                  const SizedBox(height: 16.0),
                  buildLocation(),
                  const SizedBox(height: 16.0),
                  Divider(
                    thickness: 1,
                    color: Colors.grey[600],
                  ),
                  const SizedBox(height: 16.0),
                  buildDetail(),
                  const SizedBox(height: 50),
                ],
              );
            },
          ),
        ),
      ),
    );
  }
}