import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import '../../../core/theme/app_colors.dart';
import '../controllers/meeting_stats_controller.dart';
import '../../../data/models/user_Info.dart';

class MeetingStatsView extends GetView<MeetingStatsController> {
  const MeetingStatsView({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final isDarkMode = Theme.of(context).brightness == Brightness.dark;

    return Scaffold(
      backgroundColor: isDarkMode ? AppColors.darkBackground : Colors.grey[50],
      appBar: _buildAppBar(isDarkMode),
      body: Obx(() => controller.isLoading.value
          ? const Center(child: CircularProgressIndicator())
          : _buildBody(isDarkMode)),
    );
  }

  PreferredSizeWidget _buildAppBar(bool isDarkMode) {
    return AppBar(
      leading: IconButton(
        icon: Icon(Icons.arrow_back_ios,
            color: isDarkMode ? Colors.white : Colors.black, size: 20.sp),
        onPressed: () => Get.back(),
      ),
      backgroundColor: isDarkMode ? AppColors.darkBackground : Colors.white,
      elevation: 0.5,
      title: Text(
        '会议统计',
        style: TextStyle(
            fontSize: 17.sp,
            fontWeight: FontWeight.w600,
            color: isDarkMode ? Colors.white : Colors.black),
      ),
      centerTitle: true,
      actions: [
        IconButton(
          icon: Icon(Icons.refresh,
              color: isDarkMode ? Colors.white : Colors.black),
          onPressed: controller.refreshData,
        ),
      ],
    );
  }

  Widget _buildBody(bool isDarkMode) {
    return Column(
      children: [
        _buildTimeRangeSelector(isDarkMode),
        Expanded(
          child: SingleChildScrollView(
            padding: EdgeInsets.all(16.w),
            child: Column(
              children: [
                _buildIntegralCard(isDarkMode),
                SizedBox(height: 16.h),
                _buildOverviewCard(isDarkMode),
              ],
            ),
          ),
        ),
      ],
    );
  }

  Widget _buildTimeRangeSelector(bool isDarkMode) {
    return Container(
      margin: EdgeInsets.all(16.w),
      decoration: BoxDecoration(
        color: isDarkMode ? AppColors.cardBackground : Colors.white,
        borderRadius: BorderRadius.circular(12.r),
        boxShadow: [
          BoxShadow(
              color: Colors.black.withValues(alpha: 0.05),
              blurRadius: 10,
              offset: const Offset(0, 2)),
        ],
      ),
      child: Obx(() => Row(
            children: [
              _buildTimeRangeTab('今日', 0, isDarkMode),
              _buildTimeRangeTab('本周', 1, isDarkMode),
              _buildTimeRangeTab('本月', 2, isDarkMode),
              _buildTimeRangeTab('历史', 3, isDarkMode),
            ],
          )),
    );
  }

  Widget _buildTimeRangeTab(String title, int index, bool isDarkMode) {
    final isSelected = controller.selectedTabIndex.value == index;

    return Expanded(
      child: GestureDetector(
        onTap: () => controller.switchTimeRange(index),
        child: Container(
          padding: EdgeInsets.symmetric(vertical: 12.h),
          decoration: BoxDecoration(
            color: isSelected ? AppColors.primary : Colors.transparent,
            borderRadius: BorderRadius.circular(12.r),
          ),
          child: Text(
            title,
            textAlign: TextAlign.center,
            style: TextStyle(
              fontSize: 14.sp,
              fontWeight: isSelected ? FontWeight.w600 : FontWeight.w400,
              color: isSelected
                  ? Colors.white
                  : (isDarkMode ? Colors.white70 : Colors.black54),
            ),
          ),
        ),
      ),
    );
  }

  Widget _buildOverviewCard(bool isDarkMode) {
    final stats = controller.currentStats;
    return Container(
      padding: EdgeInsets.all(16.w),
      decoration: BoxDecoration(
        color: isDarkMode ? AppColors.cardBackground : Colors.white,
        borderRadius: BorderRadius.circular(12.r),
        boxShadow: [
          BoxShadow(
              color: Colors.black.withValues(alpha: 0.05),
              blurRadius: 10,
              offset: const Offset(0, 2)),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Icon(Icons.dashboard, color: AppColors.primary, size: 20.sp),
              SizedBox(width: 8.w),
              Obx(() => Text(
                    '${controller.selectedTimeRange.value}概览',
                    style: TextStyle(
                        fontSize: 16.sp,
                        fontWeight: FontWeight.w600,
                        color: isDarkMode ? Colors.white : Colors.black),
                  )),
            ],
          ),
          SizedBox(height: 16.h),
          Row(
            children: [
              Expanded(
                  child: _buildStatItem(
                      'ASR调用次数',
                      controller.formatNumber(stats.allAsrCalls),
                      Icons.api,
                      isDarkMode)),
              Expanded(
                  child: _buildStatItem(
                      '音频总时长',
                      controller.formatDuration(stats.allAudioSeconds),
                      Icons.mic,
                      isDarkMode)),
            ],
          ),
          SizedBox(height: 12.h),
          Row(
            children: [
              Expanded(
                  child: _buildStatItem(
                      '音频文件大小',
                      controller.formatBytes(stats.allAudioFileBytes),
                      Icons.folder,
                      isDarkMode)),
              Expanded(
                  child: _buildStatItem(
                      '转写字节',
                      controller.formatNumber(stats.allTranscriptBytes),
                      Icons.text_snippet,
                      isDarkMode)),
            ],
          ),
        ],
      ),
    );
  }

  Widget _buildStatItem(
      String label, String value, IconData icon, bool isDarkMode) {
    return Column(
      children: [
        Icon(icon, color: AppColors.primary, size: 24.sp),
        SizedBox(height: 8.h),
        Text(
          value,
          style: TextStyle(
              fontSize: 18.sp,
              fontWeight: FontWeight.bold,
              color: isDarkMode ? Colors.white : Colors.black),
        ),
        SizedBox(height: 4.h),
        Text(
          label,
          style: TextStyle(
              fontSize: 12.sp,
              color: isDarkMode ? Colors.white70 : Colors.black54),
        ),
      ],
    );
  }

  Widget _buildIntegralCard(bool isDarkMode) {
    return Container(
      padding: EdgeInsets.all(16.w),
      decoration: BoxDecoration(
        color: isDarkMode ? AppColors.cardBackground : Colors.white,
        borderRadius: BorderRadius.circular(12.r),
        boxShadow: [
          BoxShadow(
            color: Colors.black.withValues(alpha: 0.05),
            blurRadius: 10,
            offset: const Offset(0, 2),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Icon(Icons.stacked_line_chart,
                  color: AppColors.primary, size: 20.sp),
              SizedBox(width: 8.w),
              Text(
                '积分统计',
                style: TextStyle(
                  fontSize: 16.sp,
                  fontWeight: FontWeight.w600,
                  color: isDarkMode ? Colors.white : Colors.black,
                ),
              ),
            ],
          ),
          SizedBox(height: 16.h),
          Obx(() {
            final _ = User.refreshTick.value;
            final u = User.instance;
            return _buildIntegralRow(
              '会议',
              '${controller.formatNumber(u.meetintegral)}/${controller.formatNumber(u.meettotalintegral)}',
              Icons.people,
              isDarkMode,
            );
          }),
        ],
      ),
    );
  }

  Widget _buildIntegralRow(
      String label, String value, IconData icon, bool isDarkMode) {
    return Row(
      children: [
        Icon(icon, color: AppColors.primary, size: 18.sp),
        SizedBox(width: 12.w),
        Expanded(
          child: Text(
            label,
            style: TextStyle(
                fontSize: 14.sp,
                color: isDarkMode ? Colors.white : Colors.black),
          ),
        ),
        Text(
          value,
          style: TextStyle(
              fontSize: 14.sp,
              fontWeight: FontWeight.w600,
              color: isDarkMode ? Colors.white : Colors.black),
        ),
      ],
    );
  }
}