// lib/pages/team/team_detail_page.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:gifunavi/pages/team/team_controller.dart';
import 'package:gifunavi/routes/app_pages.dart';
import 'package:gifunavi/model/team.dart';
import 'package:gifunavi/model/category.dart';

class TeamDetailPage extends StatefulWidget {
  const TeamDetailPage({super.key});

  @override
  _TeamDetailPageState createState() => _TeamDetailPageState();
}

class _TeamDetailPageState extends State<TeamDetailPage> {
  late TeamController controller;
  late TextEditingController _teamNameController = TextEditingController();
  final RxString mode = ''.obs;
  final Rx<Team?> team = Rx<Team?>(null);
  Worker? _teamNameWorker;

  @override
  void initState() {
    super.initState();
    controller = Get.find<TeamController>();
    _teamNameController = TextEditingController();

    WidgetsBinding.instance.addPostFrameCallback((_) {
      _initializeData();
    });
  }

  void _initializeData() {
    final args = Get.arguments;
    if (args != null && args is Map<String, dynamic>) {
      mode.value = args['mode'] as String? ?? '';
      team.value = args['team'] as Team?;

      if (mode.value == 'edit' && team.value != null) {
        controller.setSelectedTeam(team.value!);
        controller.fetchTeamMembers(team.value!.id); // メンバーを取得
      } else {
        controller.resetForm();
      }
    } else {
      // 引数がない場合は新規作成モードとして扱う
      mode.value = 'new';
      controller.resetForm();
    }

    _teamNameController.text = controller.teamName.value;

    // Use ever instead of direct listener
    _teamNameWorker = ever(controller.teamName, (String value) {
      if (_teamNameController.text != value) {
        _teamNameController.text = value;
      }
    });
  }

  @override
  void dispose() {
    _teamNameWorker?.dispose();
    _teamNameController.dispose();
    //controller.resetForm(); // Reset the form when leaving the page
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(
            Get.arguments['mode'] == 'new' ? '新規チーム作成' : 'チーム詳細'),
        leading: IconButton(
          icon: const Icon(Icons.arrow_back),
          onPressed: () {
            controller.cleanupForNavigation();
            Get.back();
          },
        ),
        actions: [
          IconButton(
            icon: const Icon(Icons.save),
            onPressed: () async {
              try {
                await controller.saveTeam();
                Get.back();
              } catch (e) {
                Get.snackbar('エラー', e.toString(),
                    snackPosition: SnackPosition.BOTTOM);
              }
            },
          ),
          Obx(() {
            if (mode.value == 'edit') {
              return IconButton(
                icon: const Icon(Icons.delete),
                onPressed: () async {
                  try {
                    await controller.deleteSelectedTeam();
                    Get.back();
                  } catch (e) {
                    Get.snackbar('エラー', e.toString(),
                        snackPosition: SnackPosition.BOTTOM);
                  }
                },
              );
            } else {
              return const SizedBox.shrink();
            }
          }),
        ],
      ),
      body: Obx(() {
        if (controller.isLoading.value) {
          return const Center(child: CircularProgressIndicator());
        }

        final filteredCategories = controller.getFilteredCategories();
        // 選択されているカテゴリが表示リストに含まれていない場合、最初の項目を選択する
        if (controller.selectedCategory.value == null ||
            !filteredCategories.contains(controller.selectedCategory.value)) {
          controller.updateCategory(filteredCategories.isNotEmpty
              ? filteredCategories.first
              : null);
        }

        // 選択されているカテゴリが表示リストに含まれていない場合、最初の項目を選択する
        if (controller.selectedCategory.value == null ||
            !filteredCategories.contains(controller.selectedCategory.value)) {
          controller.updateCategory(filteredCategories.isNotEmpty
              ? filteredCategories.first
              : null);
        }

        return SingleChildScrollView(
          child: Padding(
            padding: const EdgeInsets.all(16.0),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Obx(() =>
                    TextFormField(
                      decoration: const InputDecoration(labelText: 'チーム名'),
                      controller: TextEditingController(text: controller
                          .selectedTeam.value?.teamName ?? ''),
                      onChanged: (value) => controller.updateTeamName(value),
                    ),
                ),
                const SizedBox(height: 16),
                if (filteredCategories.isEmpty)
                  const Text('カテゴリデータを読み込めませんでした。',
                      style: TextStyle(color: Colors.red))
                else
                  Obx(() =>
                      DropdownButtonFormField<NewCategory>(
                        decoration: const InputDecoration(
                            labelText: 'カテゴリ'),
                        value: controller.selectedCategory.value,
                        items: filteredCategories.map((category) =>
                            DropdownMenuItem(
                              value: category,
                              child: Text(category.categoryName),
                            )).toList(),
                        onChanged: (value) => controller.updateCategory(value),
                      ),
                  ),

                if (filteredCategories.isEmpty &&
                    controller.categories.isNotEmpty)
                  Padding(
                    padding: const EdgeInsets.only(top: 8.0),
                    child: Text(
                      '注意: チーム構成に適さないカテゴリーも表示されています。',
                      style: TextStyle(color: Colors.orange[700], fontSize: 12),
                    ),
                  ),

                Padding(
                  padding: const EdgeInsets.symmetric(vertical: 16),
                  child: Text('所有者: ${controller.currentUser.value?.email ??
                      "未設定"}'),
                ),

                if (mode.value == 'edit') ...[
                  const SizedBox(height: 24),
                  const Text('メンバーリスト', style: TextStyle(
                      fontSize: 18, fontWeight: FontWeight.bold)),
                  const SizedBox(height: 8),
                  Obx(() {
                    final teamMembers = controller.teamMembers;
                    return ListView.builder(
                      shrinkWrap: true,
                      physics: const NeverScrollableScrollPhysics(),
                      itemCount: teamMembers.length,
                      itemBuilder: (context, index) {
                        final member = teamMembers[index];

                        final isDummyEmail = member.email?.startsWith(
                            'dummy_') ?? false;
                        final isCurrentUser = member.email ==
                            controller.currentUser.value?.email;
                        final displayName = isDummyEmail
                            ? '${member.lastname} ${member.firstname}'
                            : member.isActive
                            ? '${member.lastname} ${member.firstname}'
                            : member.email?.split('@')[0] ?? ''; //（未承認）';

                        return ListTile(
                          title: Text(
                              '$displayName${isCurrentUser ? ' (自分)' : ''}'),
                          subtitle: isDummyEmail
                              ? const Text('Email未設定')
                              : null,

                          onTap: isCurrentUser ? null : () async {
                            final result = await Get.toNamed(
                              AppPages.MEMBER_DETAIL,
                              arguments: {
                                'mode': 'edit',
                                'member': member,
                                'teamId': controller.selectedTeam.value?.id
                              },
                            );

                            await controller.fetchTeamMembers(
                                controller.selectedTeam.value!.id);
                          },
                        );
                      },
                    );
                  }),
                  const SizedBox(height: 16),
                  ElevatedButton(
                    child: const Text('新しいメンバーを追加'),
                    onPressed: () async {
                      final result = await Get.toNamed(
                        AppPages.MEMBER_DETAIL,
                        arguments: {
                          'mode': 'new',
                          'teamId': controller.selectedTeam.value?.id
                        },
                      );
                      if (result == true && controller.selectedTeam.value != null) {
                        await controller.fetchTeamMembers(controller.selectedTeam.value!.id);
                        controller.teamMembers.refresh(); // 明示的に更新を通知
                      }
                    },
                  ),
                ],
              ],
            ),
          ),
        );
      }),
    );
  }
}