import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:keyboard/resource/string.gen.dart';

import '../../../resource/assets.gen.dart';
import '../../../resource/colors.gen.dart';
import '../../../widget/animated_progress_bar.dart';
import '../../../widget/markdown/markdown_viewer.dart';

/// 亲密度报告组件
class IntimacyAnalyseReportWidget extends StatelessWidget {
  /// 报告内容
  final String reportContent;

  const IntimacyAnalyseReportWidget({super.key, required this.reportContent});

  @override
  Widget build(BuildContext context) {
    return reportContent.isEmpty
        // 报告生成中
        ? CreatingReportCardWidget()
        // 已出报告
        : ExistReportCardWidget(reportContent: reportContent);
  }
}

/// 已有报告组件
class ExistReportCardWidget extends StatelessWidget {
  /// 报告内容，Markdown格式
  final String reportContent;

  const ExistReportCardWidget({super.key, required this.reportContent});

  @override
  Widget build(BuildContext context) {
    return ReportCardFrameWidget(
      height: 825.h,
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          _buildReportOverview(),
          SizedBox(height: 10.h),
          _buildReportDetail(),
        ],
      ),
    );
  }

  /// 报告概览，包含概览数值和图表
  Widget _buildReportOverview() {
    // 圆角背景
    return Container(
      padding: EdgeInsets.only(left: 12.w, right: 12.w, top: 12.h),
      decoration: BoxDecoration(
        color: ColorName.white,
        borderRadius: BorderRadius.circular(20.r),
      ),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          // 概览数值
          Container(
            decoration: BoxDecoration(
              color: ColorName.bgReportOverview,
              borderRadius: BorderRadius.all(Radius.circular(10.r)),
            ),
            child: Row(
              children: [
                _buildIntimacyOverviewItem("30"),
                SizedBox(width: 29.w),
                _buildOverviewDivider(),
                SizedBox(width: 29.w),
                _buildCurrentStageOverviewItem("相互了解"),
              ],
            ),
          ),
          SizedBox(height: 12.h),
          // 图表
          _buildChart(),
        ],
      ),
    );
  }

  /// 概览数值的分割线
  Widget _buildOverviewDivider() {
    return Container(
      height: 44.h,
      width: 1.w,
      decoration: BoxDecoration(color: ColorName.black5),
      margin: EdgeInsets.symmetric(vertical: 10.h),
    );
  }

  /// 概览亲密度的数值项
  Widget _buildIntimacyOverviewItem(String value) {
    return Expanded(
      child: Row(
        children: [
          // 图表
          Assets.images.iconIntimacyAnalyseReportOverviewLove.image(
            height: 22.w,
            width: 22.w,
          ),
          SizedBox(width: 14.w),
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              // 数值区域
              Row(
                children: [
                  // 数值
                  Text(
                    value,
                    style: TextStyle(
                      color: ColorName.black80,
                      fontSize: 20.sp,
                      fontWeight: FontWeight.w700,
                    ),
                  ),
                  SizedBox(width: 2.w),
                  // 百分比符号
                  Text(
                    StringName.intimacyValuePercent,
                    style: TextStyle(
                      color: ColorName.black46,
                      fontSize: 13.sp,
                      fontWeight: FontWeight.w700,
                    ),
                  ),
                ],
              ),
              // 描述
              Text(
                StringName.intimacyValue,
                style: TextStyle(
                  color: ColorName.textReportOverviewValueDesc,
                  fontSize: 12.sp,
                  fontWeight: FontWeight.w400,
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  /// 概览目前阶段的数值项
  Widget _buildCurrentStageOverviewItem(String value) {
    return Expanded(
      child: Row(
        children: [
          // 图标
          Assets.images.iconIntimacyAnalyseReportOverviewStage.image(
            height: 22.w,
            width: 22.w,
          ),
          SizedBox(width: 14.w),
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              // 数值
              Text(
                value,
                style: TextStyle(
                  color: ColorName.black80,
                  fontSize: 14.sp,
                  fontWeight: FontWeight.w700,
                ),
              ),
              // 描述
              Text(
                StringName.intimacyCurrentStage,
                style: TextStyle(
                  color: ColorName.textReportOverviewValueDesc,
                  fontSize: 12.sp,
                  fontWeight: FontWeight.w400,
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }

  /// 报告图表
  Widget _buildChart() {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        _buildValueItem(
          iconProvider: Assets.images.iconEmojiLike.provider(),
          title: "互动好感度",
          value: 0.5,
          progressColors: [ColorName.blueGradient1, ColorName.blueGradient2],
        ),
        SizedBox(height: 18.h),
        _buildValueItem(
          iconProvider: Assets.images.iconEmojiChat.provider(),
          title: "话题好感度",
          value: 0.35,
          progressColors: [ColorName.greenGradient1, ColorName.greenGradient2],
        ),
        SizedBox(height: 18.h),
        _buildValueItem(
          iconProvider: Assets.images.iconEmojiLike.provider(),
          title: "情绪回应",
          value: 1.0,
          progressColors: [
            ColorName.yellowGradient1,
            ColorName.yellowGradient2,
          ],
        ),
        SizedBox(height: 18.h),
        _buildValueItem(
          iconProvider: Assets.images.iconEmojiPercent.provider(),
          title: "亲密词占比",
          value: 0.4,
          progressColors: [ColorName.pinkGradient1, ColorName.pinkGradient2],
        ),
        SizedBox(height: 18.h),
        _buildValueItem(
          iconProvider: Assets.images.iconEmojiLove.provider(),
          title: "缘分指数",
          value: 0.15,
          progressColors: [
            ColorName.purpleGradient1,
            ColorName.purpleGradient2,
          ],
        ),
        SizedBox(height: 12, width: double.infinity),
      ],
    );
  }

  /// 构建数值Item
  /// [iconProvider] icon图标的ImageProvider
  /// [title] 标题
  /// [progressColors] 进度条渐变色
  /// [value] 进度条的数值，从0到1.0
  Widget _buildValueItem({
    required ImageProvider iconProvider,
    required String title,
    required List<Color> progressColors,
    required double value,
  }) {
    return Row(
      mainAxisSize: MainAxisSize.min,
      crossAxisAlignment: CrossAxisAlignment.center,
      children: [
        // 图标
        Container(
          padding: EdgeInsets.all(6.w),
          decoration: BoxDecoration(
            // 圆形背景
            shape: BoxShape.circle,
            color: ColorName.bgReportValueIcon,
          ),
          child: ClipOval(
            child: Image(
              image: iconProvider,
              width: 15.w,
              height: 15.w,
              fit: BoxFit.fill,
            ),
          ),
        ),
        SizedBox(width: 5.w),
        // 文字
        Text(title),
        SizedBox(width: 10.w),
        // 进度条
        Expanded(
          child: AnimatedGradientProgressBar(
            targetValue: value,
            // 渐变色
            gradient: LinearGradient(colors: progressColors),
            duration: const Duration(seconds: 1),
          ),
        ),
      ],
    );
  }

  /// 报告详情
  Widget _buildReportDetail() {
    return Container(
      height: 424.h,
      decoration: ShapeDecoration(
        color: ColorName.white,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(30.r),
        ),
      ),
      child: MarkdownViewer(content: reportContent),
    );
  }
}

/// 报告生成中的卡片
class CreatingReportCardWidget extends StatelessWidget {
  const CreatingReportCardWidget({super.key});

  @override
  Widget build(BuildContext context) {
    return ReportCardFrameWidget(
      height: 300.h,
      child: Container(
        decoration: ShapeDecoration(
          color: ColorName.white,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(30.r),
          ),
        ),
        child: Center(
          child: Column(
            // 垂直水平都居中
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              // 图标
              Assets.images.iconIntimacyAnalysisReportCreating.image(
                width: 82,
                height: 82,
              ),
              SizedBox(height: 3.h),
              // 文字
              Text(
                StringName.intimacyAnalyseReportCreating,
                style: TextStyle(
                  fontSize: 14.sp,
                  color: ColorName.black60,
                  fontWeight: FontWeight.w400,
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

/// 报告卡片框架组件，只定义报告卡片的基本框架，例如卡片背景和顶部的标题，内容由子组件来实现
class ReportCardFrameWidget extends StatelessWidget {
  // 卡片高度
  final double height;

  /// 内容子组件
  final Widget child;

  const ReportCardFrameWidget({
    super.key,
    required this.height,
    required this.child,
  });

  @override
  Widget build(BuildContext context) {
    // 卡片背景
    return Container(
      height: height,
      margin: EdgeInsets.only(left: 12, right: 12, bottom: 0),
      padding: EdgeInsets.only(bottom: 12),
      decoration: BoxDecoration(
        image: DecorationImage(
          image: Assets.images.bgIntimacyAnalyseReportPreview.provider(),
          fit: BoxFit.fill,
        ),
      ),
      child: Stack(
        children: [
          // 顶部的图标和标题
          Positioned(left: 0, right: 0, top: 0, child: _buildReportTopLayout()),
          // 内容区域
          Positioned(top: 51, left: 12, right: 12, bottom: 5, child: child),
        ],
      ),
    );
  }

  /// 报告的顶部布局-包含：图标和标题
  Widget _buildReportTopLayout() {
    return Row(
      children: [
        Assets.images.iconIntimacyAnalyseReportPreviewLove.image(
          width: 50,
          height: 48,
        ),
        Assets.images.iconIntimacyAnalyseReportPreviewTitle.image(
          width: 178,
          height: 24,
        ),
      ],
    );
  }
}