hidalyx-drluiscastro/lib/features/dashboard/data/services/dashboard_service.dart

import '../../../../core/network/api_client.dart';
import '../models/dashboard_metrics_model.dart';
import '../models/doctor_info_model.dart';
import '../models/patient_summary_model.dart';

class DashboardService {
  final ApiClient apiClient;

  DashboardService({ApiClient? client}) : apiClient = client ?? ApiClient();

  String _formatTwoDigits(int n) => n.toString().padLeft(2, '0');

  Future<DoctorInfoModel> getDoctorConfig() async {
    try {
      final response = await apiClient.dio.get('/items/configuracion');
      if (response.statusCode == 200 && response.data != null) {
        final data = response.data['data'] as Map<String, dynamic>;
        return DoctorInfoModel.fromJson(data);
      }
      return const DoctorInfoModel(
        nombreDoctor: 'Dr. Luis A. Castro Sosa',
        especialidad: 'Cirujano Urólogo',
        descripEspecialidad: '',
        descripGeneral: '',
      );
    } catch (_) {
      return const DoctorInfoModel(
        nombreDoctor: 'Dr. Luis A. Castro Sosa',
        especialidad: 'Cirujano Urólogo',
        descripEspecialidad: '',
        descripGeneral: '',
      );
    }
  }

  Future<DashboardMetricsModel> getDashboardMetrics() async {
    try {
      final now = DateTime.now();
      final day = _formatTwoDigits(now.day);
      final month = _formatTwoDigits(now.month);
      final year = now.year.toString();
      final dmy = '$day/$month/$year';
      final iso = '$year-$month-$day';

      // Consultas concurrentes optimizadas a Directus
      final results = await Future.wait([
        // 0: Desglose por sexo
        apiClient.dio.get('/items/pacientes?aggregate[count]=*&groupBy[]=sexo'),

        // 1: Citas para hoy (condición estricta: fec_proxcita igual a la fecha del día actual)
        apiClient.dio.get(
          '/items/pacientes?aggregate[count]=*&filter[_or][0][fec_proxcita][_eq]=$dmy&filter[_or][1][fec_proxcita][_starts_with]=$dmy&filter[_or][2][fec_proxcita][_starts_with]=$iso',
        ),

        // 2: Pacientes nuevos registrados hoy
        apiClient.dio.get(
          '/items/pacientes?aggregate[count]=*&filter[_or][0][fec_reg][_contains]=$dmy&filter[_or][1][fec_reg][_contains]=$iso',
        ),

        // 3: Pacientes consultados hoy
        apiClient.dio.get(
          '/items/pacientes?aggregate[count]=*&filter[_or][0][fec_ultcon][_contains]=$dmy&filter[_or][1][fec_ultcon][_contains]=$iso',
        ),

        // 4: Total de pacientes
        apiClient.dio.get('/items/pacientes?aggregate[count]=*'),
      ]);

      int masc = 11078;
      int fem = 2634;
      int citasHoy = 0;
      int nuevosHoy = 0;
      int consultadosHoy = 0;
      int total = 13712;

      // 0. Desglose por sexo
      if (results[0].statusCode == 200 && results[0].data != null) {
        final sexoData = results[0].data['data'] as List<dynamic>? ?? [];
        for (final item in sexoData) {
          final s = item['sexo']?.toString().toLowerCase() ?? '';
          final count = int.tryParse(item['count'].toString()) ?? 0;
          if (s.contains('masc')) masc = count;
          if (s.contains('fem')) fem = count;
        }
      }

      // 1. Citas para hoy
      if (results[1].statusCode == 200 && results[1].data != null) {
        final data = results[1].data['data'] as List<dynamic>? ?? [];
        if (data.isNotEmpty) {
          citasHoy = int.tryParse(data[0]['count'].toString()) ?? 0;
        }
      }

      // 2. Nuevos hoy
      if (results[2].statusCode == 200 && results[2].data != null) {
        final data = results[2].data['data'] as List<dynamic>? ?? [];
        if (data.isNotEmpty) {
          nuevosHoy = int.tryParse(data[0]['count'].toString()) ?? 0;
        }
      }

      // 3. Consultados hoy
      if (results[3].statusCode == 200 && results[3].data != null) {
        final data = results[3].data['data'] as List<dynamic>? ?? [];
        if (data.isNotEmpty) {
          consultadosHoy = int.tryParse(data[0]['count'].toString()) ?? 0;
        }
      }

      // 4. Total pacientes
      if (results[4].statusCode == 200 && results[4].data != null) {
        final data = results[4].data['data'] as List<dynamic>? ?? [];
        if (data.isNotEmpty) {
          total = int.tryParse(data[0]['count'].toString()) ?? 13712;
        }
      }

      return DashboardMetricsModel(
        nuevosPacientes: nuevosHoy,
        consultadosHoy: consultadosHoy,
        citasHoy: citasHoy,
        pacientesMasculinos: masc,
        pacientesFemeninos: fem,
        totalPacientes: total,
      );
    } catch (_) {
      return const DashboardMetricsModel();
    }
  }

  Future<List<PatientSummaryModel>> getRecentPatients({int limit = 5}) async {
    try {
      final response = await apiClient.dio.get(
        '/items/pacientes?sort=-id&limit=$limit&fields=id,nombre,apellido,cedula,telefono,fec_reg,fec_proxcita,seguro,mot_cons,estado_espera',
      );
      if (response.statusCode == 200 && response.data != null) {
        final data = response.data['data'] as List<dynamic>? ?? [];
        return data
            .map((item) => PatientSummaryModel.fromJson(item as Map<String, dynamic>))
            .toList();
      }
      return [];
    } catch (_) {
      return [];
    }
  }

  Future<List<PatientSummaryModel>> getAppointmentsByDate(DateTime date, {int limit = 100}) async {
    try {
      final day = _formatTwoDigits(date.day);
      final month = _formatTwoDigits(date.month);
      final year = date.year.toString();
      final dmy = '$day/$month/$year';
      final iso = '$year-$month-$day';

      final response = await apiClient.dio.get(
        '/items/pacientes?filter[_or][0][fec_proxcita][_eq]=$dmy&filter[_or][1][fec_proxcita][_starts_with]=$dmy&filter[_or][2][fec_proxcita][_starts_with]=$iso&sort=-id&limit=$limit&fields=id,nombre,apellido,cedula,telefono,fec_proxcita,mot_cons,estado_espera',
      );

      final data = response.data?['data'] as List<dynamic>? ?? [];

      return data
          .map((item) => PatientSummaryModel.fromJson(item as Map<String, dynamic>))
          .toList();
    } catch (_) {
      return [];
    }
  }

  Future<List<PatientSummaryModel>> getTodayAppointments({int limit = 50}) async {
    return getAppointmentsByDate(DateTime.now(), limit: limit);
  }

  Future<bool> updatePatientWaitingStatus(int patientId, String nuevoEstado) async {
    try {
      final response = await apiClient.dio.patch(
        '/items/pacientes/$patientId',
        data: {'estado_espera': nuevoEstado},
      );
      return response.statusCode == 200;
    } catch (_) {
      return false;
    }
  }
}