import 'dart:async';

import 'package:cached_network_image/cached_network_image.dart';
import 'package:cached_network_image_platform_interface/cached_network_image_platform_interface.dart';
import 'package:didvan/config/theme_data.dart';
import 'package:didvan/constants/app_icons.dart';
import 'package:didvan/models/home_page_content/swot.dart';
import 'package:didvan/services/app_initalizer.dart';
import 'package:didvan/services/network/request.dart';
import 'package:didvan/services/note_service.dart';
import 'package:didvan/views/home/main/widgets/bookmarked_icon.dart';
import 'package:didvan/views/widgets/didvan/text.dart';
import 'package:didvan/views/widgets/didvan/text_field.dart';
import 'package:didvan/views/widgets/shimmer_placeholder.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:persian_number_utility/persian_number_utility.dart';
import 'package:url_launcher/url_launcher_string.dart';

class SwotBookmark extends StatefulWidget {
  final SwotItem item;
  final void Function(int postId)? onSwotUnbookmarked;

  const SwotBookmark({
    super.key,
    required this.item, this.onSwotUnbookmarked,
  });

  @override
  State<SwotBookmark> createState() => _SwotBookmark();
}

class _SwotBookmark extends State<SwotBookmark> {
  ValueNotifier<bool> myBookmarkStatus = ValueNotifier(true);
  String noteText = '';
  String tempNoteText = '';
  bool isLoading = true;
  bool hasExistingNote = false; // Track if a note exists
  Timer? _debounce;

  @override
  void initState() {
    super.initState();
    loadNote();
  }

  Future<void> loadNote() async {
    final note = await NoteService.getNoteByPostId(widget.item.id);
    if (mounted) {
      setState(() {
        noteText = note?.content ?? '';
        tempNoteText = noteText;
        hasExistingNote = note != null; // Set flag if note exists
        isLoading = false;
      });
    }
  }

  void saveOrUpdateNote(String content) async {
    print('Processing note for PostId: ${widget.item.id}, Content: $content');
    setState(() {
      isLoading = true;
    });

    try {
      bool success;
      if (hasExistingNote) {
        // Update existing note
        success = await NoteService.updateNote(widget.item.id, content);
      } else {
        // Save new note
        success = await NoteService.saveNote(widget.item.id, content);
      }

      if (success) {
        await loadNote(); // Reload note from server
        if (mounted) {
          setState(() {
            isLoading = false;
          });
          
        }
      } else {
        if (mounted) {
          setState(() {
            isLoading = false;
          });
          ScaffoldMessenger.of(context).showSnackBar(
            const SnackBar(
                content: Text('خطا در ذخیره یادداشت: سرور پاسخ ناموفق داد')),
          );
        }
      }
    } catch (e) {
      if (mounted) {
        setState(() {
          isLoading = false;
        });
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('خطا در ذخیره یادداشت: $e')),
        );
      }
    }
  }

  void onNoteChanged(String value) {
    setState(() {
      tempNoteText = value;
    });

    if (_debounce?.isActive ?? false) _debounce!.cancel();

    _debounce = Timer(const Duration(milliseconds: 500), () {
      saveOrUpdateNote(value);
    });
  }

  @override
  void dispose() {
    _debounce?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        AppInitializer.openWebLink(
          context,
          'http://opportunity-threat.didvan.com/posts/${widget.item.id}/?accessToken=${RequestService.token}',
          mode: LaunchMode.inAppWebView,
        );
      },
      child: Container(
        margin: const EdgeInsets.only(bottom: 10, right: 2, left: 2),
        padding: const EdgeInsets.all(12),
        decoration: BoxDecoration(
          color: Theme.of(context).cardColor,
          borderRadius: BorderRadius.circular(12),
        ),
        child: Column(
          children: [
            // ... (Row with image and text details for SwotItem) ...
             Row(
              crossAxisAlignment: CrossAxisAlignment.center,
              children: [
                Padding(
                  padding: const EdgeInsets.only(right: 8, top: 8),
                  child: Stack(
                    children: [
                      ClipRRect(
                        borderRadius: BorderRadius.circular(8),
                        child: CachedNetworkImage(
                          imageUrl: widget.item.imageUrl,
                          width: 80,
                          height: 80,
                          fit: BoxFit.cover,
                          httpHeaders: {
                            'Authorization': 'Bearer ${RequestService.token}',
                          },
                          imageRenderMethodForWeb:
                              ImageRenderMethodForWeb.HttpGet,
                          placeholder: (context, _) => const ShimmerPlaceholder(
                            width: 100,
                            height: 100,
                          ),
                          errorWidget: (context, url, error) => Container(
                            width: 100,
                            height: 100,
                            color: Theme.of(context)
                                .colorScheme
                                .disabledBackground,
                            child:
                                const Icon(Icons.image_not_supported_outlined),
                          ),
                        ),
                      ),
                      Container(
                        padding: const EdgeInsets.symmetric(
                            vertical: 4, horizontal: 8),
                        decoration: BoxDecoration(
                          color: Theme.of(context).colorScheme.secondary,
                          borderRadius: const BorderRadius.horizontal(
                            left: Radius.circular(10),
                          ),
                        ),
                        child: SvgPicture.asset("lib/assets/images/categories/Vector.svg",height: 14,)
                      ),
                    ],
                  ),
                ),
                const SizedBox(width: 16),
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        widget.item.title,
                        style: Theme.of(context).textTheme.bodyLarge,
                        maxLines: 2,
                        overflow: TextOverflow.ellipsis,
                      ),
                      const SizedBox(
                        height: 18,
                      ),
                      Row(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          const Icon(
                            DidvanIcons.calendar_day_light,
                            size: 16,
                          ),
                          const SizedBox(width: 4),
                          DidvanText(
                            DateTime.parse(widget.item.createdAt)
                                .toPersianDateStr(),
                            style: Theme.of(context).textTheme.labelSmall,
                          ),
                        ],
                      ),
                    ],
                  ),
                ),
              ],
            ),
            // Notes Title Column
            Column(
              children: [
                const SizedBox(height: 8),
                Row(
                  children: [
                    Icon(
                      Icons.edit_outlined,
                      size: 16,
                      color: Theme.of(context).colorScheme.caption,
                    ),
                    const SizedBox(width: 4),
                    DidvanText(
                      'یادداشت‌های من',
                      style: Theme.of(context).textTheme.labelSmall,
                      color: Theme.of(context).colorScheme.caption,
                    ),
                  ],
                ),
              ],
            ),
            // Row for (Divider + TextField) and BookmarkIcon
            Row(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Row(
                        children: [
                          Flexible(
                            child: Container(
                              height: 1,
                              color: Theme.of(context).colorScheme.primary,
                            ),
                          ),
                          Flexible(
                            flex: 2,
                            child: Container(
                              height: 1,
                              color: Theme.of(context).colorScheme.border,
                            ),
                          )
                        ],
                      ),
                      const SizedBox(height: 4),
                      isLoading
                          ? const Padding(
                              padding: EdgeInsets.symmetric(vertical: 12),
                              child: CircularProgressIndicator(strokeWidth: 2),
                            )
                          : DidvanTextField(
                              disableBorders: true,
                              initialValue: tempNoteText,
                              hintText: 'برای اضافه کردن یادداشت لمس کنید.',
                              onChanged: onNoteChanged,
                              isSmall: true,
                              textInputAction: TextInputAction.done,
                            ),
                    ],
                  ),
                ),
                const SizedBox(width: 8),
                BookmarkedIcon(
                  postId: widget.item.id,
                  onBookmarkChanged: (isBookmarked) {
                    if (!isBookmarked) {
                      widget.onSwotUnbookmarked?.call(widget.item.id);
                    }                    
                  },
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}