// src/stores/payment.ts
import { defineStore } from 'pinia';

// 1. Definisikan Tipe Data untuk qrData (penting untuk properti expired_at yang di-spread)
interface QrData {
    qrvalue: string | null;
    display_nobill: string | null;
    display_name: string | null;
    display_amount: string | null;
    status: '1' | '2' | '0' | null; // "1": Pending, "2": Sukses, "0": Gagal/Expired
    ip: string | null;
    // Tambahkan properti yang di-spread dari API, termasuk expired_at
    expired_at?: string; // Tambahkan expired_at sebagai properti opsional
    [key: string]: any; // Indeks signature untuk properti dinamis (misal: transaction_id, reason)
}

// 2. Definisikan Tipe Data untuk State
interface PaymentState {
    currentStep: 1 | 2 | 3 | 4;
    patientInfo: {
        name: string;
        amount: string;
        expiry: string;
    };
    qrData: QrData;
}

// Variabel di luar store untuk menyimpan timer, agar persistensi di luar state Pinia
let autoResetTimer: number | null = null; 

export const usePaymentStore = defineStore('payment', {
  state: (): PaymentState => ({ // Gunakan tipedata PaymentState
    currentStep: 1, // 1: Menunggu Data, 2: Tampilkan QRIS, 3: Sukses, 4: Gagal
    patientInfo: {
      name: '',
      amount: '',
      expiry: '', // Waktu kedaluwarsa diambil dari qrData (via spread)
    },
    qrData: {
      qrvalue: null,
      display_nobill: null,
      display_name: null,
      display_amount: null,
      status: null, 
      ip: null,
      // created_at DIHAPUS
    } as QrData, // Type casting untuk QrData
  }),
  
  getters: {
    hasQrData: (state): boolean => !!state.qrData.qrvalue,
    safeQrValue: (state): string => state.qrData.qrvalue || 'https://www.google.com',
    
    isReadyForStatusCheck: (state): boolean => {
      return !!(state.qrData.display_nobill && state.qrData.display_name);
    },
    
    debugInfo: (state) => ({
      step: state.currentStep,
      hasIdentifiers: !!(state.qrData.display_nobill && state.qrData.display_name),
      qrData: state.qrData,
      patientInfo: state.patientInfo,
    })
  },
  
  actions: {
    nextStep() {
      this.currentStep++;
    },
    prevStep() {
      this.currentStep--;
    },
    
    setStep(step: 1 | 2 | 3 | 4) {
      console.log(`[STORE] Setting step from ${this.currentStep} to ${step}`);
      this.currentStep = step;
    },

    startAutoReset() {
        if (autoResetTimer) {
            clearTimeout(autoResetTimer);
        }
        console.log('🏠 [STORE] Starting auto return timer (50s) for reset.');
        
        // Di TypeScript, setTimeout mengembalikan number
        autoResetTimer = setTimeout(() => {
            console.log('🏠 [STORE] Auto return to home triggered');
            this.reset();
        }, 10000);  
    },
    
    reset() {
      console.log('--- [STORE] Resetting payment store ---');
      this.currentStep = 1;
      this.patientInfo = {
        name: '',
        amount: '',
        expiry: '',
      };
      this.qrData = {
        qrvalue: null,
        display_nobill: null,
        display_name: null,
        display_amount: null,
        status: null,
        ip: null,
      } as QrData; // Pastikan tipe kembali ke QrData
        if (autoResetTimer) {
            clearTimeout(autoResetTimer);
            autoResetTimer = null;
        }
    },
    
    // Definisikan tipe untuk apiResponse
    updatePayment(apiResponse: { data: QrData[] }) {
      console.log("=== [STORE] UPDATE PAYMENT ===");
      
      if (!apiResponse?.data || apiResponse.data.length === 0) {
        console.error("Invalid API response structure or empty data array");
        return;
      }
      
      const apiData = apiResponse.data[0];
      const oldStatus = this.qrData.status;
      
      // Update qrData dengan semua properti dari API
      this.qrData = {
        qrvalue: apiData.qrvalue || apiData.qr_code || this.qrData.qrvalue,
        display_nobill: apiData.display_nobill || this.qrData.display_nobill,
        display_name: apiData.display_name || this.qrData.display_name,
        display_amount: apiData.display_amount || apiData.nominal || this.qrData.display_amount,
        status: apiData.status as QrData['status'] || this.qrData.status, // Type casting untuk status
        ip: apiData.ip || this.qrData.ip,
        // created_at DIHAPUS
        ...apiData // expired_at akan masuk di sini
      };
      
      // Update patientInfo
      this.patientInfo = {
        name: this.qrData.display_name || this.patientInfo.name || 'Unknown',
        amount: this.qrData.display_amount || this.patientInfo.amount || '0',
        expiry: this.patientInfo.expiry,
      };

      // --- LOGIKA TRANSISI STATUS OTOMATIS (SUCCESS/FAIL) ---
      const newStatus = this.qrData.status;

      if (oldStatus !== newStatus) {
        console.log(`[STORE] Status changed: ${oldStatus} -> ${newStatus}`);
      }

      if (this.currentStep === 2 && oldStatus !== newStatus) {
          if (newStatus === "2") {
              console.log('🎉 [STORE] Status 2 (SUKSES) diterima. Pindah ke Step 3.');
              this.currentStep = 3;
              this.startAutoReset(); 
          } else if (newStatus === "0") {
              console.log('❌ [STORE] Status 0 (GAGAL) diterima. Pindah ke Step 4.');
              this.currentStep = 4;
              this.startAutoReset(); 
          }
      }
      
      console.log("Updated qrData:", this.qrData);
      console.log("Updated patientInfo:", this.patientInfo);
      console.log("===================");
    },
    
    // Method untuk debug
    debugCurrentState() {
      console.log("=== PAYMENT STORE DEBUG ===");
      console.log("Current Step:", this.currentStep);
      console.log("Patient Info:", this.patientInfo);
      console.log("QR Data:", this.qrData);
      console.log("Has QR Data:", this.hasQrData);
      console.log("Ready for Status Check:", this.isReadyForStatusCheck);
      console.log("Safe QR Value:", this.safeQrValue);
      console.log("==========================");
    },
    
    // Method untuk validasi data
    validateData(): boolean {
      const issues: string[] = [];
      
      if (!this.qrData.display_nobill) {
        issues.push('display_nobill missing');
      }
      
      if (!this.qrData.display_name) {
        issues.push('display_name missing');
      }
      
      // Perlu pengecekan properti qr_code pada apiData, bukan state
      if (!this.qrData.qrvalue) { 
        issues.push('QR code missing');
      }
      
      if (issues.length > 0) {
        console.warn('Data validation issues:', issues);
        return false;
      }
      
      return true;
    }
  },
});