import 'package:flutter/material.dart';
import 'package:food_hub_app/apis/recipe.dart';
import 'package:food_hub_app/models/recipe.dart';
import 'package:food_hub_app/utils/screenshot_util.dart';
import 'package:food_hub_app/widgets/common/index.dart';

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

  @override
  State<RecipeDetailPage> createState() => _RecipeDetailState();
}

class _RecipeDetailState extends State<RecipeDetailPage> {
  RecipeDetail recipe = RecipeDetail.getEmpty();
  final GlobalKey _recipeDetailKey = GlobalKey();
  bool _isSharing = false;

  // 定义三个分类列表
  List<RecipeMaterial> mainMaterialList = []; // 主料
  List<RecipeMaterial> auxiliaryMaterialList = []; // 配料
  List<RecipeMaterial> accessoryMaterialList = []; // 辅料

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    refreshRecipeDetail();
  }

  Future<void> refreshRecipeDetail() async {
    // 获取参数
    final args = ModalRoute.of(context)?.settings.arguments as Map;
    final result = await queryRecipeByIdApi(args['id']);

    setState(() {
      recipe = result;
      getRecipeMaterial();
    });
  }

  void getRecipeMaterial() {
    mainMaterialList.clear();
    auxiliaryMaterialList.clear();
    accessoryMaterialList.clear();

    for (var material in recipe.materialList) {
      switch (material.type) {
        case '主料':
          mainMaterialList.add(material);
          break;
        case '配料':
          auxiliaryMaterialList.add(material);
          break;
        case '辅料':
          accessoryMaterialList.add(material);
          break;
      }
    }
  }

  // 分享图片
  Future<void> _shareRecipeAsImage() async {
    if (_isSharing) return;

    setState(() {
      _isSharing = true;
    });

    final timestamp = DateTime.now().millisecondsSinceEpoch;
    final imageName = '${recipe.name}_$timestamp.png';
    await ScreenshotUtil.captureAndShare(
      globalKey: _recipeDetailKey,
      fileName: imageName,
      shareText: '分享菜谱: ${recipe.name}',
    );

    setState(() {
      _isSharing = false;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('菜谱信息')),
      body: SingleChildScrollView(
        child: Column(
          children: [
            // 用RepaintBoundary包裹要截图的部分
            RepaintBoundary(
              key: _recipeDetailKey,
              child: Padding(
                padding: EdgeInsets.all(10),
                child: _buildRecipeDetail(),
              ),
            ),
            _buildButtons(),
          ],
        ),
      ),
    );
  }

  Widget _buildRecipeDetail() {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.center,
      children: [
        _buildTitleSection(),
        SizedBox(height: 8),
        _buildInfoCard(
          context,
          icon: Icons.info,
          title: "基础信息",
          content: buildTag(context, recipe.category),
        ),
        SizedBox(height: 8),
        _buildInfoCard(
          context,
          icon: Icons.shopping_cart,
          title: "食材信息",
          content: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              _buildMaterialSection(context, '主料', mainMaterialList),
              _buildMaterialSection(context, '辅料', auxiliaryMaterialList),
              _buildMaterialSection(context, '调料', accessoryMaterialList),
            ],
          ),
        ),
        SizedBox(height: 8),
        _buildInfoCard(
          context,
          icon: Icons.list,
          title: "步骤信息",
          content: Column(
            children:
                recipe.stepList.map((step) => _buildStepSection(step)).toList(),
          ),
        ),
        SizedBox(height: 8),
        _buildInfoCard(
          context,
          icon: Icons.note,
          title: "其他信息",
          content: Text(
            '备注：${recipe.remark.isEmpty ? '无' : recipe.remark}',
            style: const TextStyle(height: 1.5),
          ),
        ),
      ],
    );
  }

  Widget _buildTitleSection() {
    return Text(
      recipe.name,
      style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
    );
  }

  Widget _buildMaterialSection(
    BuildContext context,
    String title,
    List<RecipeMaterial> materials,
  ) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Padding(
          padding: const EdgeInsets.only(bottom: 8, top: 12),
          child: Text(title, style: TextStyle(fontWeight: FontWeight.bold)),
        ),
        if (materials.isEmpty)
          buildTag(context, '无')
        else
          Wrap(
            spacing: 8.0,
            runSpacing: 8.0,
            children:
                materials
                    .map((m) => buildTag(context, '${m.name} ${m.amount}'))
                    .toList(),
          ),
      ],
    );
  }

  Widget _buildStepSection(RecipeStep step) {
    return Row(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text("第${step.sort + 1}步"),
        SizedBox(width: 10),
        Expanded(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(
                step.content,
                style: const TextStyle(
                  height: 1.4,
                  fontWeight: FontWeight.bold,
                ),
              ),
              const SizedBox(height: 8),
              if (step.imageUrl.isNotEmpty)
                ClipRRect(
                  borderRadius: BorderRadius.circular(8),
                  child: Image.network(
                    step.imageUrl,
                    width: double.infinity,
                    height: 180,
                    fit: BoxFit.contain,
                  ),
                ),
            ],
          ),
        ),
      ],
    );
  }

  Widget _buildInfoCard(
    BuildContext context, {
    required IconData icon,
    required String title,
    required Widget content,
  }) {
    return BuildCard(
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Icon(icon, color: Theme.of(context).colorScheme.primary),
              const SizedBox(width: 5),
              Text(
                title,
                style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
              ),
            ],
          ),
          SizedBox(height: 5),
          content,
        ],
      ),
    );
  }

  Widget _buildButtons() {
    return Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        circleIconButton(
          context: context,
          icon: _isSharing ? Icons.hourglass_top : Icons.share,
          onPressed: _shareRecipeAsImage,
        ),
      ],
    );
  }
}