mobile-app/lib/features/agents/presentation/screens/agent_detail_screen.dart

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:go_router/go_router.dart';
import 'package:real_estate_mobile/core/constants/app_colors.dart';
import 'package:real_estate_mobile/core/widgets/s3_image.dart';
import 'package:real_estate_mobile/features/agents/data/models/agent_profile.dart';
import 'package:real_estate_mobile/features/agents/presentation/providers/agent_detail_provider.dart';
import 'package:real_estate_mobile/features/auth/presentation/providers/auth_provider.dart';

class AgentDetailScreen extends ConsumerStatefulWidget {
  final String agentId;

  const AgentDetailScreen({super.key, required this.agentId});

  @override
  ConsumerState<AgentDetailScreen> createState() => _AgentDetailScreenState();
}

class _AgentDetailScreenState extends ConsumerState<AgentDetailScreen> {
  bool _emailVisible = false;
  bool _phoneVisible = false;

  @override
  void initState() {
    super.initState();
    _loadConnectionIfAuth();
  }

  void _loadConnectionIfAuth() {
    WidgetsBinding.instance.addPostFrameCallback((_) {
      final authState = ref.read(authProvider);
      if (authState.status == AuthStatus.authenticated) {
        ref.read(agentDetailProvider(widget.agentId).notifier).loadConnectionStatus();
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    final state = ref.watch(agentDetailProvider(widget.agentId));

    if (state.isLoading) {
      return const Center(
          child: CircularProgressIndicator(color: AppColors.accentOrange));
    }
    if (state.error != null) {
      return _buildError(state.error!);
    }
    return _buildContent(state);
  }

  Widget _buildError(String error) {
    return Center(
      child: Padding(
        padding: const EdgeInsets.all(24),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            const Icon(Icons.error_outline,
                size: 48, color: AppColors.accentOrange),
            const SizedBox(height: 16),
            const Text('Unable to Load Profile',
                style: TextStyle(
                    fontFamily: 'Fractul',
                    fontSize: 18,
                    fontWeight: FontWeight.w700,
                    color: AppColors.primaryDark)),
            const SizedBox(height: 12),
            TextButton(
              onPressed: () => context.pop(),
              child: const Text('Go Back',
                  style: TextStyle(color: AppColors.accentOrange)),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildContent(AgentDetailState state) {
    final agent = state.agent!;
    return SingleChildScrollView(
      child: Column(
        children: [
          // ── Avatar Section ──
          const SizedBox(height: 16),
          _buildAvatarSection(agent),

          // ── Status + Connect Buttons ──
          const SizedBox(height: 16),
          _buildStatusButtons(state),

          // ── Contact Info ──
          const SizedBox(height: 12),
          _buildContactInfo(state),

          // ── Profile Info ──
          const SizedBox(height: 16),
          _buildProfileInfo(agent, state),

          // ── Experience Section ──
          if (_hasExperience(state)) ...[
            const SizedBox(height: 24),
            _buildExperienceSection(state),
          ],

          // ── Info Cards (Availability, Work Env, Best Experience) ──
          const SizedBox(height: 24),
          _buildInfoCards(state),

          // ── Specialization Section ──
          if (state.specializationCards.isNotEmpty) ...[
            const SizedBox(height: 24),
            _buildSpecializationSection(state),
          ],

          // ── Testimonials Section ──
          if (state.testimonials.isNotEmpty) ...[
            const SizedBox(height: 24),
            _buildTestimonialsSection(state),
          ],

          const SizedBox(height: 30),
        ],
      ),
    );
  }

  // ── Avatar ──
  Widget _buildAvatarSection(AgentProfile agent) {
    final screenWidth = MediaQuery.of(context).size.width;
    final avatarWidth = screenWidth * 0.877; // 377/430 from Figma
    return Center(
      child: ClipRRect(
        borderRadius: BorderRadius.circular(20),
        child: SizedBox(
          width: avatarWidth,
          height: 346,
          child: Stack(
            fit: StackFit.expand,
            children: [
              S3Image(
                imageUrl: agent.avatarUrl,
                width: avatarWidth,
                height: 346,
                fit: BoxFit.cover,
                errorWidget: (_) => Container(
                  color: const Color(0xFFC4D9D4),
                  child: const Icon(Icons.person,
                      size: 80, color: AppColors.primaryDark),
                ),
              ),
              // Gradient overlay
              Positioned(
                bottom: 0,
                left: 0,
                right: 0,
                height: 100,
                child: Container(
                  decoration: BoxDecoration(
                    gradient: LinearGradient(
                      begin: Alignment.bottomCenter,
                      end: Alignment.topCenter,
                      colors: [
                        Colors.black.withValues(alpha: 0.5),
                        Colors.transparent,
                      ],
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  // ── Status + Connect ──
  Widget _buildStatusButtons(AgentDetailState state) {
    final agent = state.agent!;
    final isAvailable = agent.isAvailable;
    final connState = state.connectionState;

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 38),
      child: Column(
        children: [
          // Available row
          _buildStatusRow(
            isAvailable: true,
            label: 'Available.',
            active: isAvailable,
            connState: connState,
            onConnect: isAvailable
                ? () => _handleConnect(state)
                : null,
          ),
          const SizedBox(height: 10),
          // Unavailable row
          _buildStatusRow(
            isAvailable: false,
            label: 'Unavailable.',
            active: !isAvailable,
            connState: connState,
            onConnect: !isAvailable
                ? () => _handleConnect(state)
                : null,
          ),
        ],
      ),
    );
  }

  Widget _buildStatusRow({
    required bool isAvailable,
    required String label,
    required bool active,
    required String connState,
    VoidCallback? onConnect,
  }) {
    return Container(
      height: 55,
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(15),
        border: Border.all(
            color: AppColors.primaryDark.withValues(alpha: 0.15), width: 1),
      ),
      child: Row(
        children: [
          const SizedBox(width: 20),
          // Status dot
          Container(
            width: 14,
            height: 12,
            decoration: BoxDecoration(
              shape: BoxShape.circle,
              color: active
                  ? (isAvailable ? const Color(0xFF4CAF50) : Colors.transparent)
                  : Colors.transparent,
              border: Border.all(
                color: active
                    ? (isAvailable
                        ? const Color(0xFF4CAF50)
                        : AppColors.primaryDark.withValues(alpha: 0.3))
                    : AppColors.primaryDark.withValues(alpha: 0.15),
                width: 2,
              ),
            ),
          ),
          const SizedBox(width: 12),
          Text(
            label,
            style: TextStyle(
              fontFamily: 'Fractul',
              fontSize: 12,
              fontWeight: FontWeight.w700,
              color: active
                  ? AppColors.primaryDark
                  : AppColors.primaryDark.withValues(alpha: 0.4),
            ),
          ),
          const Spacer(),
          // Connect button
          if (active) _buildConnectButton(connState, isAvailable, onConnect),
          const SizedBox(width: 4),
        ],
      ),
    );
  }

  Widget _buildConnectButton(
      String connState, bool isAvailable, VoidCallback? onConnect) {
    Color bgColor;
    Color textColor;
    String label;
    bool enabled;

    switch (connState) {
      case 'pending':
        bgColor = const Color(0xFFFFF3CD);
        textColor = const Color(0xFF856404);
        label = 'Pending';
        enabled = false;
        break;
      case 'accepted':
        bgColor = AppColors.primaryDark;
        textColor = const Color(0xFFF0F5FC);
        label = 'Unlink';
        enabled = true;
        break;
      default:
        bgColor = isAvailable ? AppColors.accentOrange : AppColors.primaryDark;
        textColor = isAvailable ? AppColors.primaryDark : const Color(0xFFF0F5FC);
        label = 'Connect';
        enabled = true;
    }

    return GestureDetector(
      onTap: enabled ? onConnect : null,
      child: Container(
        height: 55,
        width: 164,
        decoration: BoxDecoration(
          color: bgColor,
          borderRadius: BorderRadius.circular(15),
          border: isAvailable && connState == 'none'
              ? Border.all(color: AppColors.accentOrange)
              : null,
        ),
        alignment: Alignment.center,
        child: Text(
          label,
          style: TextStyle(
            fontFamily: 'Fractul',
            fontSize: 14,
            fontWeight: FontWeight.w400,
            color: textColor,
          ),
        ),
      ),
    );
  }

  void _handleConnect(AgentDetailState state) {
    final authState = ref.read(authProvider);
    if (authState.status != AuthStatus.authenticated) {
      context.push('/login');
      return;
    }
    if (state.connectionState == 'accepted') {
      ref.read(agentDetailProvider(widget.agentId).notifier).cancelConnection();
      return;
    }
    _showConnectModal(state);
  }

  void _showConnectModal(AgentDetailState state) {
    final controller = TextEditingController();
    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      builder: (ctx) => Padding(
        padding: EdgeInsets.only(
            bottom: MediaQuery.of(ctx).viewInsets.bottom),
        child: Container(
          decoration: const BoxDecoration(
            color: Colors.white,
            borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
          ),
          padding: const EdgeInsets.all(24),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    'Connect with ${state.agent?.fullName ?? ''}',
                    style: const TextStyle(
                      fontFamily: 'Fractul',
                      fontSize: 18,
                      fontWeight: FontWeight.w700,
                      color: AppColors.primaryDark,
                    ),
                  ),
                  GestureDetector(
                    onTap: () => Navigator.pop(ctx),
                    child: const Icon(Icons.close, color: AppColors.primaryDark),
                  ),
                ],
              ),
              const SizedBox(height: 8),
              const Text(
                'Send a connection request to this agent.',
                style: TextStyle(
                  fontFamily: 'SourceSerif4',
                  fontSize: 14,
                  color: AppColors.primaryDark,
                ),
              ),
              const SizedBox(height: 16),
              TextField(
                controller: controller,
                maxLines: 4,
                maxLength: 1000,
                decoration: InputDecoration(
                  hintText: 'Introduce yourself... (optional)',
                  hintStyle: TextStyle(
                    fontFamily: 'SourceSerif4',
                    fontSize: 14,
                    color: AppColors.primaryDark.withValues(alpha: 0.4),
                  ),
                  border: OutlineInputBorder(
                    borderRadius: BorderRadius.circular(10),
                    borderSide: BorderSide(
                        color: AppColors.primaryDark.withValues(alpha: 0.15)),
                  ),
                ),
              ),
              const SizedBox(height: 16),
              SizedBox(
                width: double.infinity,
                height: 50,
                child: ElevatedButton(
                  onPressed: () async {
                    Navigator.pop(ctx);
                    await ref
                        .read(agentDetailProvider(widget.agentId).notifier)
                        .connect(message: controller.text);
                  },
                  style: ElevatedButton.styleFrom(
                    backgroundColor: AppColors.accentOrange,
                    shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(15)),
                  ),
                  child: const Text(
                    'Send Request',
                    style: TextStyle(
                      fontFamily: 'Fractul',
                      fontSize: 16,
                      fontWeight: FontWeight.w700,
                      color: Colors.white,
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  // ── Contact Info ──
  Widget _buildContactInfo(AgentDetailState state) {
    final email = state.contactEmail;
    final phone = state.contactPhone;
    if (email == null && phone == null) return const SizedBox.shrink();

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 38),
      child: Container(
        height: 98,
        padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 16),
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(15),
          border: Border.all(
              color: AppColors.primaryDark.withValues(alpha: 0.15), width: 1),
        ),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            if (email != null)
              _buildContactRow(
                label: 'Email:',
                value: _emailVisible ? email : state.maskEmail(email),
                onToggle: () => setState(() => _emailVisible = !_emailVisible),
                visible: _emailVisible,
              ),
            if (email != null && phone != null) const SizedBox(height: 12),
            if (phone != null)
              _buildContactRow(
                label: 'Ph.No:',
                value: _phoneVisible ? phone : state.maskPhone(phone),
                onToggle: () => setState(() => _phoneVisible = !_phoneVisible),
                visible: _phoneVisible,
              ),
          ],
        ),
      ),
    );
  }

  Widget _buildContactRow({
    required String label,
    required String value,
    required VoidCallback onToggle,
    required bool visible,
  }) {
    return Row(
      children: [
        Text(
          label,
          style: const TextStyle(
            fontFamily: 'Fractul',
            fontSize: 14,
            fontWeight: FontWeight.w700,
            color: AppColors.primaryDark,
          ),
        ),
        const SizedBox(width: 8),
        Expanded(
          child: Text(
            value,
            style: const TextStyle(
              fontFamily: 'SourceSerif4',
              fontSize: 14,
              color: AppColors.primaryDark,
            ),
          ),
        ),
        const SizedBox(width: 8),
        GestureDetector(
          onTap: onToggle,
          child: Icon(
            visible ? Icons.visibility : Icons.visibility_off,
            size: 18,
            color: AppColors.primaryDark.withValues(alpha: 0.6),
          ),
        ),
      ],
    );
  }

  // ── Profile Info (Name, Title, Location, Bio) ──
  Widget _buildProfileInfo(AgentProfile agent, AgentDetailState state) {
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 38),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          // Name + Verified badge + (Verified Expert) on same line
          Row(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.baseline,
            textBaseline: TextBaseline.alphabetic,
            children: [
              Text(
                agent.firstName,
                style: const TextStyle(
                  fontFamily: 'Fractul',
                  fontSize: 18,
                  fontWeight: FontWeight.w700,
                  color: AppColors.primaryDark,
                ),
              ),
              const SizedBox(width: 4),
              if (agent.isVerified) ...[
                const Padding(
                  padding: EdgeInsets.only(bottom: 1),
                  child: Icon(Icons.verified, size: 16, color: Color(0xFF2196F3)),
                ),
                const SizedBox(width: 4),
              ],
              Text(
                agent.lastName,
                style: const TextStyle(
                  fontFamily: 'Fractul',
                  fontSize: 18,
                  fontWeight: FontWeight.w400,
                  color: AppColors.primaryDark,
                ),
              ),
              if (agent.isVerified) ...[
                const SizedBox(width: 6),
                const Text(
                  '(Verified Expert)',
                  style: TextStyle(
                    fontFamily: 'SourceSerif4',
                    fontSize: 14,
                    fontWeight: FontWeight.w500,
                    color: Color(0xFF638559),
                  ),
                ),
              ],
            ],
          ),
          // Title
          if (agent.agentType != null) ...[
            const SizedBox(height: 6),
            Text(
              agent.headline ?? agent.agentType!.name,
              style: const TextStyle(
                fontFamily: 'Fractul',
                fontSize: 14,
                color: AppColors.primaryDark,
              ),
              textAlign: TextAlign.center,
            ),
          ],
          const SizedBox(height: 8),
          // Location + Member Since
          Row(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              if (agent.location.isNotEmpty) ...[
                Icon(Icons.location_on,
                    size: 16, color: AppColors.primaryDark.withValues(alpha: 0.7)),
                const SizedBox(width: 4),
                Text(
                  agent.location,
                  style: const TextStyle(
                    fontFamily: 'SourceSerif4',
                    fontSize: 14,
                    fontWeight: FontWeight.w700,
                    color: AppColors.primaryDark,
                  ),
                ),
                const SizedBox(width: 20),
              ],
              Icon(Icons.calendar_today,
                  size: 14, color: AppColors.primaryDark.withValues(alpha: 0.7)),
              const SizedBox(width: 4),
              Text(
                agent.memberSinceText,
                style: const TextStyle(
                  fontFamily: 'SourceSerif4',
                  fontSize: 13,
                  fontWeight: FontWeight.w500,
                  color: AppColors.primaryDark,
                ),
              ),
            ],
          ),
          // Bio
          if (agent.description.isNotEmpty) ...[
            const SizedBox(height: 16),
            SizedBox(
              width: 338,
              child: Text(
                agent.description,
                style: const TextStyle(
                  fontFamily: 'SourceSerif4',
                  fontSize: 14,
                  color: AppColors.primaryDark,
                  height: 1.43,
                ),
                textAlign: TextAlign.center,
              ),
            ),
          ],
        ],
      ),
    );
  }

  // ── Experience ──
  bool _hasExperience(AgentDetailState s) =>
      s.yearsInExperience != '-' ||
      s.contractsClosed != '-' ||
      s.licensingAreas.isNotEmpty ||
      s.expertiseYears.isNotEmpty ||
      s.certifications.isNotEmpty;

  Widget _buildExperienceSection(AgentDetailState state) {
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 17),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          const Center(
            child: Text(
              'Experience',
              style: TextStyle(
                fontFamily: 'Fractul',
                fontSize: 20,
                fontWeight: FontWeight.w700,
                color: AppColors.primaryDark,
              ),
            ),
          ),
          const SizedBox(height: 22),
          // Years
          if (state.yearsInExperience != '-')
            _buildExperienceItem(
                'Years in Experience', [state.yearsInExperience]),
          // Contracts
          if (state.contractsClosed != '-')
            _buildExperienceItem(
                'Number of contracts closed', [state.contractsClosed]),
          // Licensing Areas
          if (state.licensingAreas.isNotEmpty)
            _buildLicensingAreas(state.licensingAreas),
          // Expertise Years
          if (state.expertiseYears.isNotEmpty)
            _buildExpertiseYears(state.expertiseYears),
          // Certifications
          if (state.certifications.isNotEmpty)
            _buildCertifications(state.certifications),
        ],
      ),
    );
  }

  Widget _buildExperienceItem(String title, List<String> items) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(
          title,
          style: const TextStyle(
            fontFamily: 'Fractul',
            fontSize: 14,
            fontWeight: FontWeight.w700,
            color: AppColors.primaryDark,
          ),
        ),
        const SizedBox(height: 14),
        ...items.map((item) => Padding(
              padding: const EdgeInsets.only(left: 10, bottom: 4),
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  const Padding(
                    padding: EdgeInsets.only(top: 2),
                    child: Text('\u2022  ',
                        style: TextStyle(fontSize: 15, color: AppColors.primaryDark)),
                  ),
                  Expanded(
                    child: Text(
                      item,
                      style: const TextStyle(
                        fontFamily: 'SourceSerif4',
                        fontSize: 15,
                        fontWeight: FontWeight.w500,
                        color: AppColors.primaryDark,
                      ),
                    ),
                  ),
                ],
              ),
            )),
        const SizedBox(height: 16),
        Divider(color: AppColors.primaryDark.withValues(alpha: 0.15), height: 1),
        const SizedBox(height: 10),
      ],
    );
  }

  Widget _buildLicensingAreas(List<String> areas) {
    return _ExpandableChipsSection(
      title: 'Licensing & Areas',
      items: areas,
      initialCount: 6,
    );
  }

  Widget _buildExpertiseYears(List<Map<String, String>> items) {
    final chips = items.map((e) {
      final years = e['years'] ?? '';
      return years.isNotEmpty ? '${e['area']} – $years' : e['area'] ?? '';
    }).toList();
    return _ExpandableChipsSection(
      title: 'Areas in expertise & Years',
      items: chips,
      initialCount: 4,
    );
  }

  Widget _buildCertifications(List<Map<String, String>> certs) {
    return _ExpandableCertificationsSection(certs: certs);
  }

  // ── Info Cards (Availability, Work Env, Best Experience) ──
  Widget _buildInfoCards(AgentDetailState state) {
    // Work environment and best experience from fieldValues
    String workEnv = '';
    String bestExp = '';
    for (final fv in state.fieldValues) {
      final slug = fv.fieldSlug.toLowerCase();
      if (slug.contains('work_environment') || slug.contains('preferred_environment')) {
        if (fv.textValue != null) workEnv = fv.textValue!;
        if (fv.jsonValue is List) {
          workEnv = (fv.jsonValue as List).map((e) => e.toString()).join(', ');
        }
      }
      if (slug.contains('best_experience') || slug.contains('amazing_experience')) {
        if (fv.textValue != null) bestExp = fv.textValue!;
      }
    }

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 36),
      child: Column(
        children: [
          // Availability card
          if (state.availabilityType.isNotEmpty)
            _buildInfoCard(
              icon: Icons.access_time_filled,
              title: 'Availability',
              subtitle: state.availabilityType,
              items: state.availabilitySchedule,
            ),
          if (workEnv.isNotEmpty) ...[
            const SizedBox(height: 16),
            _buildInfoCard(
              icon: Icons.landscape_outlined,
              title: '',
              subtitle: '',
              description: workEnv,
            ),
          ],
          if (bestExp.isNotEmpty) ...[
            const SizedBox(height: 16),
            _buildInfoCard(
              icon: Icons.star_rounded,
              title: '',
              subtitle: '',
              description: bestExp,
            ),
          ],
        ],
      ),
    );
  }

  Widget _buildInfoCard({
    required IconData icon,
    required String title,
    required String subtitle,
    List<String>? items,
    String? description,
  }) {
    return Container(
      width: double.infinity,
      constraints: const BoxConstraints(minHeight: 217),
      padding: const EdgeInsets.all(20),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(10),
        boxShadow: [
          BoxShadow(
            color: const Color(0xFFD9D9D9).withValues(alpha: 0.5),
            offset: const Offset(0, 10),
            blurRadius: 20,
          ),
        ],
      ),
      child: Column(
        mainAxisAlignment: MainAxisAlignment.start,
        children: [
          Icon(icon, size: 36, color: AppColors.accentOrange),
          if (title.isNotEmpty) ...[
            const SizedBox(height: 8),
            Text(
              title,
              style: const TextStyle(
                fontFamily: 'SourceSerif4',
                fontSize: 14,
                fontWeight: FontWeight.w600,
                color: AppColors.primaryDark,
              ),
            ),
          ],
          if (subtitle.isNotEmpty) ...[
            const SizedBox(height: 2),
            Text(
              subtitle,
              style: const TextStyle(
                fontFamily: 'SourceSerif4',
                fontSize: 14,
                fontWeight: FontWeight.w600,
                color: AppColors.primaryDark,
              ),
            ),
          ],
          if (items != null && items.isNotEmpty) ...[
            const SizedBox(height: 8),
            ...items.map((item) => Padding(
                  padding: const EdgeInsets.symmetric(vertical: 1),
                  child: Text(
                    item,
                    style: const TextStyle(
                      fontFamily: 'SourceSerif4',
                      fontSize: 14,
                      color: AppColors.primaryDark,
                    ),
                  ),
                )),
          ],
          if (description != null) ...[
            const SizedBox(height: 8),
            Text(
              description,
              style: const TextStyle(
                fontFamily: 'SourceSerif4',
                fontSize: 14,
                fontWeight: FontWeight.w600,
                color: AppColors.primaryDark,
              ),
              textAlign: TextAlign.center,
            ),
          ],
        ],
      ),
    );
  }

  // ── Specialization Section ──
  Widget _buildSpecializationSection(AgentDetailState state) {
    return Container(
      width: double.infinity,
      color: const Color(0xFFE6E6E6),
      padding: const EdgeInsets.symmetric(vertical: 24),
      child: Column(
        children: [
          const Text(
            'Specialization',
            style: TextStyle(
              fontFamily: 'Fractul',
              fontSize: 20,
              fontWeight: FontWeight.w700,
              color: AppColors.primaryDark,
            ),
          ),
          const SizedBox(height: 4),
          const Text(
            'Area Of Expertise and Focus',
            style: TextStyle(
              fontFamily: 'Fractul',
              fontSize: 14,
              fontWeight: FontWeight.w500,
              color: AppColors.primaryDark,
            ),
          ),
          const SizedBox(height: 16),
          ...state.specializationCards
              .map((card) => Padding(
                    padding: const EdgeInsets.only(bottom: 12),
                    child: _SpecializationCardWidget(card: card),
                  )),
        ],
      ),
    );
  }

  // ── Testimonials ──
  Widget _buildTestimonialsSection(AgentDetailState state) {
    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 24),
      child: Column(
        children: [
          const Text(
            'Testimonials',
            style: TextStyle(
              fontFamily: 'Fractul',
              fontSize: 20,
              fontWeight: FontWeight.w700,
              color: AppColors.primaryDark,
            ),
          ),
          const SizedBox(height: 8),
          Divider(
              color: AppColors.primaryDark.withValues(alpha: 0.15), height: 1),
          const SizedBox(height: 8),
          const Text(
            'Clients rate our real estate services 4.9 out of 5 on average, based on recent client reviews.',
            style: TextStyle(
              fontFamily: 'SourceSerif4',
              fontSize: 14,
              color: AppColors.primaryDark,
            ),
            textAlign: TextAlign.center,
          ),
          const SizedBox(height: 16),
          SizedBox(
            height: 320,
            child: ListView.separated(
              scrollDirection: Axis.horizontal,
              itemCount: state.testimonials.length,
              separatorBuilder: (_, __) => const SizedBox(width: 12),
              itemBuilder: (_, i) =>
                  _TestimonialCard(data: state.testimonials[i]),
            ),
          ),
        ],
      ),
    );
  }

}

// ── Expandable Chips Section ──

class _ExpandableChipsSection extends StatefulWidget {
  final String title;
  final List<String> items;
  final int initialCount;

  const _ExpandableChipsSection({
    required this.title,
    required this.items,
    this.initialCount = 6,
  });

  @override
  State<_ExpandableChipsSection> createState() =>
      _ExpandableChipsSectionState();
}

class _ExpandableChipsSectionState extends State<_ExpandableChipsSection> {
  bool _expanded = false;

  @override
  Widget build(BuildContext context) {
    final showItems = _expanded
        ? widget.items
        : widget.items.take(widget.initialCount).toList();
    final hasMore = widget.items.length > widget.initialCount;

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(
          widget.title,
          style: const TextStyle(
            fontFamily: 'Fractul',
            fontSize: 14,
            fontWeight: FontWeight.w700,
            color: AppColors.primaryDark,
          ),
        ),
        const SizedBox(height: 14),
        Wrap(
          spacing: 10,
          runSpacing: 10,
          children: [
            ...showItems.map((item) => IntrinsicWidth(
                  child: Container(
                    height: 28,
                    padding: const EdgeInsets.symmetric(horizontal: 10),
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      borderRadius: BorderRadius.circular(15),
                      border: Border.all(
                          color: AppColors.primaryDark,
                          width: 0.7),
                    ),
                    child: Text(
                      item,
                      style: const TextStyle(
                        fontFamily: 'SourceSerif4',
                        fontSize: 14,
                        fontWeight: FontWeight.w500,
                        color: AppColors.primaryDark,
                      ),
                    ),
                  ),
                )),
            if (hasMore)
              GestureDetector(
                onTap: () => setState(() => _expanded = !_expanded),
                child: IntrinsicWidth(
                  child: Container(
                    height: 28,
                    padding: const EdgeInsets.symmetric(horizontal: 10),
                    alignment: Alignment.center,
                    decoration: BoxDecoration(
                      borderRadius: BorderRadius.circular(15),
                      border: Border.all(
                          color: _expanded
                              ? AppColors.accentOrange
                              : AppColors.primaryDark.withValues(alpha: 0.15),
                          width: 1),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Text(
                          _expanded
                              ? 'Show Less'
                              : '+${widget.items.length - widget.initialCount} More',
                          style: TextStyle(
                            fontFamily: 'SourceSerif4',
                            fontSize: _expanded ? 13 : 15,
                            fontWeight:
                                _expanded ? FontWeight.w700 : FontWeight.w300,
                            color: _expanded
                                ? AppColors.accentOrange
                                : AppColors.primaryDark,
                          ),
                        ),
                        if (_expanded) ...[
                          const SizedBox(width: 2),
                          const Icon(Icons.keyboard_arrow_up,
                              size: 14, color: AppColors.accentOrange),
                        ],
                      ],
                    ),
                  ),
                ),
              ),
          ],
        ),
        const SizedBox(height: 14),
        Divider(color: AppColors.primaryDark.withValues(alpha: 0.15), height: 1),
        const SizedBox(height: 10),
      ],
    );
  }
}

// ── Expandable Certifications Section ──

class _ExpandableCertificationsSection extends StatefulWidget {
  final List<Map<String, String>> certs;
  final int initialCount;

  const _ExpandableCertificationsSection({
    required this.certs,
    this.initialCount = 3,
  });

  @override
  State<_ExpandableCertificationsSection> createState() =>
      _ExpandableCertificationsSectionState();
}

class _ExpandableCertificationsSectionState
    extends State<_ExpandableCertificationsSection> {
  bool _expanded = false;

  @override
  Widget build(BuildContext context) {
    final showCerts = _expanded
        ? widget.certs
        : widget.certs.take(widget.initialCount).toList();
    final hasMore = widget.certs.length > widget.initialCount;

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        const Text(
          'Certifications',
          style: TextStyle(
            fontFamily: 'Fractul',
            fontSize: 14,
            fontWeight: FontWeight.w700,
            color: AppColors.primaryDark,
          ),
        ),
        const SizedBox(height: 16),
        ...showCerts.map((cert) => Padding(
              padding: const EdgeInsets.only(left: 14, bottom: 16),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Row(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      const Padding(
                        padding: EdgeInsets.only(top: 2),
                        child: Text('\u2022  ',
                            style: TextStyle(
                                fontSize: 14, color: AppColors.primaryDark)),
                      ),
                      Expanded(
                        child: Text(
                          cert['name'] ?? '',
                          style: const TextStyle(
                            fontFamily: 'SourceSerif4',
                            fontSize: 14,
                            color: AppColors.primaryDark,
                          ),
                        ),
                      ),
                    ],
                  ),
                  if ((cert['org'] ?? '').isNotEmpty)
                    Padding(
                      padding: const EdgeInsets.only(left: 20, top: 2),
                      child: Text(
                        cert['org']!.toUpperCase(),
                        style: TextStyle(
                          fontFamily: 'SourceSerif4',
                          fontSize: 14,
                          color:
                              AppColors.primaryDark.withValues(alpha: 0.5),
                        ),
                      ),
                    ),
                ],
              ),
            )),
        if (hasMore)
          Center(
            child: GestureDetector(
              onTap: () => setState(() => _expanded = !_expanded),
              child: Container(
                padding:
                    const EdgeInsets.symmetric(horizontal: 14, vertical: 4),
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(15),
                  border:
                      Border.all(color: AppColors.accentOrange, width: 1),
                ),
                child: Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Text(
                      _expanded
                          ? 'Show Less'
                          : '+${widget.certs.length - widget.initialCount} More',
                      style: const TextStyle(
                        fontFamily: 'SourceSerif4',
                        fontSize: 10,
                        fontWeight: FontWeight.w700,
                        color: AppColors.accentOrange,
                      ),
                    ),
                    const SizedBox(width: 2),
                    Icon(
                      _expanded
                          ? Icons.keyboard_arrow_up
                          : Icons.keyboard_arrow_down,
                      size: 14,
                      color: AppColors.accentOrange,
                    ),
                  ],
                ),
              ),
            ),
          ),
        const SizedBox(height: 4),
      ],
    );
  }
}

// ── Specialization Card ──

class _SpecializationCardWidget extends StatefulWidget {
  final SpecializationCard card;

  const _SpecializationCardWidget({required this.card});

  @override
  State<_SpecializationCardWidget> createState() =>
      _SpecializationCardWidgetState();
}

class _SpecializationCardWidgetState extends State<_SpecializationCardWidget> {
  bool _expanded = false;
  static const _initialCount = 3;

  IconData get _icon {
    final slug = widget.card.slug.toLowerCase();
    if (slug.contains('loan') || slug.contains('price')) {
      return Icons.attach_money;
    }
    if (slug.contains('property')) return Icons.apartment;
    if (slug.contains('hobby') || slug.contains('interest')) {
      return Icons.favorite_border;
    }
    return Icons.home_outlined;
  }

  @override
  Widget build(BuildContext context) {
    final values = _expanded
        ? widget.card.values
        : widget.card.values.take(_initialCount).toList();
    final hasMore = widget.card.values.length > _initialCount;

    return Container(
      width: 298,
      constraints: const BoxConstraints(minHeight: 236),
      padding: const EdgeInsets.symmetric(vertical: 16),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(15),
        border: Border.all(
            color: AppColors.primaryDark.withValues(alpha: 0.7), width: 0.7),
      ),
      child: Column(
        children: [
          Icon(_icon, size: 32, color: AppColors.accentOrange),
          const SizedBox(height: 8),
          Text(
            widget.card.name,
            style: const TextStyle(
              fontFamily: 'Fractul',
              fontSize: 14,
              fontWeight: FontWeight.w700,
              color: AppColors.primaryDark,
            ),
          ),
          const SizedBox(height: 12),
          ...values.map((v) => Padding(
                padding: const EdgeInsets.symmetric(vertical: 4),
                child: Text(
                  AgentDetailState.titleCase(v),
                  style: const TextStyle(
                    fontFamily: 'SourceSerif4',
                    fontSize: 14,
                    color: AppColors.primaryDark,
                    height: 1.6,
                  ),
                  textAlign: TextAlign.center,
                ),
              )),
          if (hasMore) ...[
            const SizedBox(height: 10),
            GestureDetector(
              onTap: () => setState(() => _expanded = !_expanded),
              child: Container(
                padding:
                    const EdgeInsets.symmetric(horizontal: 14, vertical: 4),
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(15),
                  border:
                      Border.all(color: AppColors.accentOrange, width: 1),
                ),
                child: Row(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Text(
                      _expanded ? 'Show Less' : 'Show More',
                      style: const TextStyle(
                        fontFamily: 'SourceSerif4',
                        fontSize: 10,
                        fontWeight: FontWeight.w700,
                        color: AppColors.accentOrange,
                      ),
                    ),
                    const SizedBox(width: 2),
                    Icon(
                      _expanded
                          ? Icons.keyboard_arrow_up
                          : Icons.keyboard_arrow_down,
                      size: 14,
                      color: AppColors.accentOrange,
                    ),
                  ],
                ),
              ),
            ),
          ],
        ],
      ),
    );
  }
}

// ── Testimonial Card ──

class _TestimonialCard extends StatelessWidget {
  final Map<String, dynamic> data;

  const _TestimonialCard({required this.data});

  @override
  Widget build(BuildContext context) {
    final text = data['text'] as String? ?? '';
    final authorName = data['authorName'] as String? ?? '';
    final authorRole = data['authorRole'] as String? ?? '';
    final rating = (data['rating'] as num?)?.toInt() ?? 5;

    return SizedBox(
      width: 320,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // Main card body with speech bubble shape
          Expanded(
            child: Container(
              width: double.infinity,
              padding: const EdgeInsets.fromLTRB(20, 16, 20, 20),
              decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.circular(15),
                boxShadow: [
                  BoxShadow(
                    color: const Color(0xFFD9D9D9).withValues(alpha: 0.5),
                    offset: const Offset(0, 10),
                    blurRadius: 20,
                  ),
                ],
              ),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  // Quote icon
                  const Text(
                    '\u201C',
                    style: TextStyle(
                      fontFamily: 'Fractul',
                      fontSize: 36,
                      fontWeight: FontWeight.w700,
                      color: AppColors.primaryDark,
                      height: 0.8,
                    ),
                  ),
                  const SizedBox(height: 6),
                  // Title snippet
                  Text(
                    text.length > 35 ? '${text.substring(0, 35)} ..' : text,
                    style: const TextStyle(
                      fontFamily: 'Fractul',
                      fontSize: 14,
                      fontWeight: FontWeight.w700,
                      color: AppColors.primaryDark,
                    ),
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                  ),
                  const SizedBox(height: 10),
                  // Full text
                  Expanded(
                    child: Text(
                      text,
                      style: const TextStyle(
                        fontFamily: 'SourceSerif4',
                        fontSize: 14,
                        color: AppColors.primaryDark,
                        height: 1.5,
                      ),
                      overflow: TextOverflow.fade,
                    ),
                  ),
                ],
              ),
            ),
          ),
          // Speech bubble triangle
          Padding(
            padding: const EdgeInsets.only(left: 30),
            child: CustomPaint(
              size: const Size(16, 10),
              painter: _TrianglePainter(color: Colors.white),
            ),
          ),
          const SizedBox(height: 6),
          // Stars + Author info
          Padding(
            padding: const EdgeInsets.only(left: 4),
            child: Row(
              children: [
                // Stars
                Row(
                  mainAxisSize: MainAxisSize.min,
                  children: List.generate(
                    5,
                    (i) => Icon(
                      i < rating ? Icons.star : Icons.star_border,
                      size: 16,
                      color: i < rating
                          ? AppColors.accentOrange
                          : AppColors.primaryDark.withValues(alpha: 0.3),
                    ),
                  ),
                ),
                const SizedBox(width: 10),
                // Author
                Expanded(
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        authorName,
                        style: const TextStyle(
                          fontFamily: 'SourceSerif4',
                          fontSize: 14,
                          fontWeight: FontWeight.w500,
                          color: AppColors.primaryDark,
                        ),
                      ),
                      if (authorRole.isNotEmpty)
                        Text(
                          authorRole,
                          style: const TextStyle(
                            fontFamily: 'SourceSerif4',
                            fontSize: 14,
                            fontWeight: FontWeight.w600,
                            color: AppColors.primaryDark,
                          ),
                        ),
                    ],
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }
}

// ── Triangle painter for speech bubble ──
class _TrianglePainter extends CustomPainter {
  final Color color;
  _TrianglePainter({required this.color});

  @override
  void paint(Canvas canvas, Size size) {
    final paint = Paint()
      ..color = color
      ..style = PaintingStyle.fill;
    final shadowPaint = Paint()
      ..color = const Color(0xFFD9D9D9).withAlpha(40)
      ..maskFilter = const MaskFilter.blur(BlurStyle.normal, 4);

    final path = Path()
      ..moveTo(0, 0)
      ..lineTo(size.width, 0)
      ..lineTo(size.width / 2, size.height)
      ..close();

    canvas.drawPath(path, shadowPaint);
    canvas.drawPath(path, paint);
  }

  @override
  bool shouldRepaint(covariant CustomPainter oldDelegate) => false;
}