import { ref, computed } from 'vue';
import { useQueueStore } from '@/stores/queueStore';
import { useMasterStore } from '@/stores/masterStore';
import { useClinicStore } from '@/stores/clinicStore';

export const useGrandPaviliun = () => {
  const queueStore = useQueueStore();
  const masterStore = useMasterStore();
  const clinicStore = useClinicStore();
  
  const loading = ref(false);

  // Expose methods for UI
  const fetchEksekutifData = async () => {
    loading.value = true;
    try {
      // Pastikan data master ruangan sudah dimuat
      if (!masterStore.ruangData || masterStore.ruangData.length === 0) {
        // Assume it's loaded in index or master layouts, but fallback if not
      }

      const eksekutifClinics = masterStore.ruangData.filter(r => r.jenisLayanan === 'Eksekutif');
      
      // Ambil data antrean untuk semua klinik eksekutif
      const promises = eksekutifClinics.map(clinic => {
        queueStore.registerClinicInterest(clinic.kodeKlinik);
        return queueStore.fetchPatientsForClinic(clinic.kodeKlinik);
      });
      
      await Promise.all(promises);
      
      // Connect WebSocket if not connected
      if (!queueStore.isWsConnected) {
        queueStore.initWebSocket('admin-klinik-ruang-eksekutif');
      }
    } catch (e) {
      console.error('Error fetching eksekutif data:', e);
    } finally {
      loading.value = false;
    }
  };

  // Computed data for UI
  const clinics = computed(() => {
    const eksekutifClinics = (masterStore.ruangData || []).filter(r => r.jenisLayanan === 'Eksekutif');
    
    return eksekutifClinics.map(clinic => {
      // Find all patients for this clinic
      const clinicPatients = queueStore.allPatients.filter(p => p.kodeKlinik === clinic.kodeKlinik && p.processStage === 'klinik-ruang' && p.status !== 'processed');
      
      // Find current processing patient (we take the first room's current patient if multiple, or global)
      // Since design shows 1 column per clinic, we find the first patient marked as processing.
      // Usually, queueStore.currentProcessingPatient is keyed by `klinik-ruang-${kodeKlinik}-${nomorRuang}`
      let currentPatientObj = null;
      
      // We look through clinic rooms to find a processing patient
      for (const ruang of clinic.ruangList) {
        const key = `klinik-ruang-${clinic.kodeKlinik}-${ruang.nomorRuang}`;
        const processing = queueStore.currentProcessingPatient[key];
        if (processing) {
          currentPatientObj = {
            ...processing,
            roomIndicator: `RUANG ${ruang.nomorRuang}`,
            nomorRuang: ruang.nomorRuang
          };
          break; // Stop at first one for the column view
        }
      }
      
      // Get queue patients (those not currently processing)
      const currentPatientNo = currentPatientObj ? currentPatientObj.no : null;
      const queuePatients = clinicPatients
        .filter(p => p.no !== currentPatientNo)
        .map(p => ({
          ...p,
          isActive: false // Could be based on selection later
        }));

      return {
        kodeKlinik: clinic.kodeKlinik,
        namaKlinik: clinic.namaKlinik,
        currentPatient: currentPatientObj,
        queuePatients: queuePatients,
        roomOptions: clinic.ruangList
      };
    });
  });

  const monitorRooms = computed(() => {
    const rooms = [];
    let idCounter = 1;
    
    const eksekutifClinics = (masterStore.ruangData || []).filter(r => r.jenisLayanan === 'Eksekutif');
    
    eksekutifClinics.forEach(clinic => {
      clinic.ruangList.forEach(ruang => {
        const key = `klinik-ruang-${clinic.kodeKlinik}-${ruang.nomorRuang}`;
        const processing = queueStore.currentProcessingPatient[key];
        
        // As user specified: Monitoring only shows data when 'Panggil Pemeriksaan' (Tindakan) is true
        // Assuming calledTindakan flag exists on processing patient
        const isActiveInMonitoring = processing && processing.calledTindakan;

        rooms.push({
          id: idCounter++,
          name: `RUANG ${ruang.nomorRuang}`,
          activePatient: isActiveInMonitoring ? (processing.noAntrian?.split(" |")[0] || processing.barcode) : null,
          clinicName: clinic.namaKlinik
        });
      });
    });
    
    return rooms;
  });

  // Actions
  const handlePemeriksaanAwal = (patient, kodeKlinik, nomorRuang) => {
    if (!patient || !kodeKlinik || !nomorRuang) return;
    
    const roomInfo = masterStore.ruangData
      .find(c => c.kodeKlinik === kodeKlinik)
      ?.ruangList.find(r => String(r.nomorRuang) === String(nomorRuang));
    
    if (!roomInfo) return;

    const wsData = {
      action: 'callPemeriksaanAwal',
      patientId: patient.barcode || patient.visitId,
      patientCode: patient.noAntrian?.split(" |")[0] || patient.barcode,
      patientName: patient.name || '',
      roomName: roomInfo.namaRuang,
      clinicCode: kodeKlinik,
      tipePanggilan: 'Pemeriksaan Awal'
    };
    
    queueStore.sendViaPost(wsData);
    
    // Update local state to mark as called
    if (patient.no) {
      const idx = queueStore.allPatients.findIndex(p => p.no === patient.no);
      if (idx !== -1) {
        queueStore.allPatients[idx].calledPemeriksaanAwal = true;
      }
    }
  };

  const handlePanggilPemeriksaan = (patient, kodeKlinik, nomorRuang) => {
    if (!patient || !kodeKlinik || !nomorRuang) return;
    
    const roomInfo = masterStore.ruangData
      .find(c => c.kodeKlinik === kodeKlinik)
      ?.ruangList.find(r => String(r.nomorRuang) === String(nomorRuang));
    
    if (!roomInfo) return;

    const wsData = {
      action: 'callTindakan',
      patientId: patient.barcode || patient.visitId,
      patientCode: patient.noAntrian?.split(" |")[0] || patient.barcode,
      patientName: patient.name || '',
      roomName: roomInfo.namaRuang,
      clinicCode: kodeKlinik,
      tipePanggilan: 'Tindakan'
    };
    
    queueStore.sendViaPost(wsData);
    
    // Update local state to mark as called
    if (patient.no) {
      const idx = queueStore.allPatients.findIndex(p => p.no === patient.no);
      if (idx !== -1) {
        queueStore.allPatients[idx].calledTindakan = true;
      }
    }
  };

  const processPatientAction = async (patient, action, kodeKlinik, nomorRuang) => {
    if (!patient || !kodeKlinik || !nomorRuang) return { success: false, message: 'Data tidak lengkap' };
    
    const result = await queueStore.processPatientKlinikRuang(
      patient,
      action,
      kodeKlinik,
      nomorRuang
    );

    if (action === 'pending' && result.success) {
      const patientIndex = queueStore.allPatients.findIndex(p => p.no === patient.no);
      if (patientIndex !== -1) {
        queueStore.allPatients[patientIndex] = {
          ...queueStore.allPatients[patientIndex],
          status: 'pending'
        };
        const key = `klinik-ruang-${kodeKlinik}-${nomorRuang}`;
        queueStore.currentProcessingPatient[key] = null;
      }
    }
    
    return result;
  };

  return {
    clinics,
    monitorRooms,
    loading,
    fetchEksekutifData,
    handlePemeriksaanAwal,
    handlePanggilPemeriksaan,
    processPatientAction
  };
};