// org_details_page.dart — تفاصيل وتحليلات مؤسسة (لوحة إدارة سيرو)
import 'package:flutter/material.dart';
import 'package:get/get.dart';

import '../../constant/colors.dart';
import '../../controller/transit/transit_admin_controller.dart';
import 'org_admins_page.dart';

class TransitOrgDetailsPage extends StatefulWidget {
  final int orgId;
  final String orgName;
  const TransitOrgDetailsPage({super.key, required this.orgId, required this.orgName});

  @override
  State<TransitOrgDetailsPage> createState() => _TransitOrgDetailsPageState();
}

class _TransitOrgDetailsPageState extends State<TransitOrgDetailsPage> {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      Get.find<TransitAdminController>().loadOrgDetails(widget.orgId);
    });
  }

  @override
  Widget build(BuildContext context) {
    return GetBuilder<TransitAdminController>(
      builder: (c) => Scaffold(
        backgroundColor: AppColor.bg,
        appBar: AppBar(
          backgroundColor: AppColor.bg,
          elevation: 0,
          title: Text(widget.orgName, style: const TextStyle(color: AppColor.textPrimary)),
          actions: [
            IconButton(
              tooltip: 'إدارة المشرفين',
              icon: const Icon(Icons.admin_panel_settings_outlined, color: AppColor.accent),
              onPressed: () => Get.to(
                () => TransitOrgAdminsPage(orgId: widget.orgId, orgName: widget.orgName),
              ),
            ),
            PopupMenuButton<String>(
              icon: const Icon(Icons.more_vert, color: AppColor.textSecondary),
              color: AppColor.surface,
              onSelected: (action) => _handleContractAction(action),
              itemBuilder: (_) => [
                _menuItem('active',      'تفعيل العقد',    Icons.check_circle_outline,  AppColor.success),
                _menuItem('trial',       'وضع تجريبي',     Icons.science_outlined,       AppColor.info),
                _menuItem('suspended',   'تعليق العقد',    Icons.pause_circle_outline,   AppColor.warning),
                _menuItem('terminated',  'إنهاء العقد',    Icons.cancel_outlined,        AppColor.danger),
              ],
            ),
          ],
        ),
        body: c.isLoadingDetails
            ? const Center(child: CircularProgressIndicator(color: AppColor.accent))
            : c.selectedOrgDetails == null
                ? const Center(
                    child: Text('تعذّر تحميل البيانات', style: TextStyle(color: AppColor.textSecondary)))
                : _content(c),
      ),
    );
  }

  PopupMenuItem<String> _menuItem(String value, String label, IconData icon, Color color) {
    return PopupMenuItem<String>(
      value: value,
      child: Row(
        children: [
          Icon(icon, color: color, size: 18),
          const SizedBox(width: 10),
          Text(label, style: TextStyle(color: color, fontSize: 13)),
        ],
      ),
    );
  }

  Future<void> _handleContractAction(String contractStatus) async {
    final labels = {
      'active':     'تفعيل العقد',
      'trial':      'وضع تجريبي',
      'suspended':  'تعليق العقد',
      'terminated': 'إنهاء العقد',
    };
    final confirm = await showDialog<bool>(
      context: context,
      builder: (_) => AlertDialog(
        backgroundColor: AppColor.surface,
        title: Text(labels[contractStatus] ?? contractStatus,
            style: const TextStyle(color: AppColor.textPrimary)),
        content: Text(
          contractStatus == 'terminated'
              ? 'سيتم إنهاء العقد وإبطال جميع جلسات المشرفين. هذا الإجراء خطير.'
              : 'هل أنت متأكد من تغيير حالة العقد إلى "${labels[contractStatus]}"؟',
          style: const TextStyle(color: AppColor.textSecondary),
        ),
        actions: [
          TextButton(
            onPressed: () => Navigator.pop(context, false),
            child: const Text('إلغاء', style: TextStyle(color: AppColor.textSecondary)),
          ),
          TextButton(
            onPressed: () => Navigator.pop(context, true),
            child: Text(
              labels[contractStatus] ?? contractStatus,
              style: TextStyle(
                color: contractStatus == 'terminated' ? AppColor.danger : AppColor.accent,
                fontWeight: FontWeight.bold,
              ),
            ),
          ),
        ],
      ),
    );

    if (confirm != true) return;

    final c = Get.find<TransitAdminController>();
    final ok = await c.updateContractStatus(widget.orgId, contractStatus);
    if (ok && mounted) {
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text('تم تحديث حالة العقد إلى: ${labels[contractStatus]}'),
        backgroundColor: contractStatus == 'terminated'
            ? AppColor.danger
            : contractStatus == 'suspended'
                ? AppColor.warning
                : AppColor.success,
      ));
      c.loadOrgDetails(widget.orgId);
    }
  }

  Widget _content(TransitAdminController c) {
    final d = c.selectedOrgDetails!;
    final counts = d.counts;
    final trips = d.trips;

    return ListView(
      padding: const EdgeInsets.all(16),
      children: [
        _sectionTitle('الأسطول'),
        Row(
          children: [
            _statCard('السائقون', '${counts['drivers_active'] ?? 0}/${counts['drivers_total'] ?? 0}',
                Icons.badge_outlined),
            const SizedBox(width: 10),
            _statCard('المركبات', '${counts['vehicles_active'] ?? 0}/${counts['vehicles_total'] ?? 0}',
                Icons.directions_bus_outlined),
          ],
        ),
        const SizedBox(height: 10),
        Row(
          children: [
            _statCard('الخطوط النشطة', '${counts['routes_active'] ?? 0}', Icons.route_outlined),
            const SizedBox(width: 10),
            _statCard('عضويات نشطة', '${counts['enrollments_active'] ?? 0}', Icons.people_outline),
          ],
        ),
        if ((int.tryParse(counts['enrollments_pending']?.toString() ?? '0') ?? 0) > 0) ...[
          const SizedBox(height: 10),
          _statCard('طلبات بانتظار الموافقة', '${counts['enrollments_pending']}',
              Icons.pending_actions_outlined, color: AppColor.warning),
        ],
        const SizedBox(height: 24),
        _sectionTitle('الرحلات'),
        Row(
          children: [
            _statCard('اليوم', '${trips['today'] ?? 0}', Icons.today_outlined),
            const SizedBox(width: 10),
            _statCard('هذا الأسبوع', '${trips['this_week'] ?? 0}', Icons.date_range_outlined),
          ],
        ),
        const SizedBox(height: 10),
        Row(
          children: [
            _statCard('هذا الشهر', '${trips['this_month'] ?? 0}', Icons.calendar_month_outlined),
            const SizedBox(width: 10),
            _statCard('ساعات القيادة', '${trips['total_hours_driven'] ?? 0}', Icons.timer_outlined),
          ],
        ),
        const SizedBox(height: 10),
        Row(
          children: [
            _statCard('مكتملة', '${trips['completed'] ?? 0}', Icons.check_circle_outline,
                color: AppColor.success),
            const SizedBox(width: 10),
            _statCard('متوسط التأخير', '${trips['avg_delay_minutes'] ?? 0} د', Icons.timelapse,
                color: AppColor.warning),
          ],
        ),
        const SizedBox(height: 24),
        _sectionTitle('الخطوط'),
        ...d.routes.map((r) => Card(
              color: AppColor.surface,
              margin: const EdgeInsets.only(bottom: 8),
              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
              child: ListTile(
                title: Text(r['name_ar']?.toString() ?? '',
                    style: const TextStyle(color: AppColor.textPrimary)),
                subtitle: Text(
                  '${r['stops_count'] ?? 0} محطة · ${r['completed_trips'] ?? 0} رحلة مكتملة',
                  style: const TextStyle(color: AppColor.textSecondary, fontSize: 12),
                ),
                trailing: Text(
                  r['status']?.toString() ?? '',
                  style: TextStyle(
                    color: r['status'] == 'active' ? AppColor.success : AppColor.textSecondary,
                    fontSize: 12,
                  ),
                ),
              ),
            )),
      ],
    );
  }

  Widget _sectionTitle(String text) => Padding(
        padding: const EdgeInsets.only(bottom: 10),
        child: Text(text,
            style: const TextStyle(
                color: AppColor.textPrimary, fontSize: 16, fontWeight: FontWeight.bold)),
      );

  Widget _statCard(String label, String value, IconData icon, {Color? color}) {
    return Expanded(
      child: Container(
        padding: const EdgeInsets.all(14),
        decoration: BoxDecoration(
          color: AppColor.surface,
          borderRadius: BorderRadius.circular(14),
        ),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Icon(icon, color: color ?? AppColor.accent, size: 20),
            const SizedBox(height: 8),
            Text(value,
                style: TextStyle(
                    color: color ?? AppColor.textPrimary,
                    fontSize: 18,
                    fontWeight: FontWeight.bold)),
            const SizedBox(height: 2),
            Text(label, style: const TextStyle(color: AppColor.textSecondary, fontSize: 11)),
          ],
        ),
      ),
    );
  }
}