Fix Redundance Reference

AMREZ.EOP.Application/UseCases/Payments/SlipVerification/VerifyFromImageUseCase.cs

@@ -1,6 +1,93 @@
+using System.Globalization;
+using AMREZ.EOP.Abstractions.Applications.UseCases.Payments.SlipVerification;
+using AMREZ.EOP.Abstractions.Applications.UseCases.Payments.SlipVerification.QrDecode;
+using AMREZ.EOP.Abstractions.Infrastructures.Integrations.SCB.Clients;
+using AMREZ.EOP.Application.UseCases.Payments.SlipVerification.BankDetect;
+using AMREZ.EOP.Application.UseCases.Payments.SlipVerification.QrDecode;
+using AMREZ.EOP.Contracts.DTOs.Payments.SlipVerification;
+using AMREZ.EOP.Domain.Shared.Payments;
+
 namespace AMREZ.EOP.Application.UseCases.Payments.SlipVerification;
 
-public class VerifyFromImageUseCase
+public sealed class VerifyFromImageUseCase : IVerifyFromImageUseCase
 {
-    
+    private readonly IQrDecoder _qr;
+    private readonly IScbSlipClient _scb;
+    private readonly SCBOptions _opts;
+
+    public VerifyFromImageUseCase(IQrDecoder qr, IScbSlipClient scb, SCBOptions opts)
+    {
+        _qr = qr;
+        _scb = scb;
+        _opts = opts;
+    }
+
+    public async Task<VerifyFromImageResponse?> ExecuteAsync(VerifyFromImageRequest request, CancellationToken ct)
+    {
+        await using var ms = new MemoryStream();
+        await request.Image.CopyToAsync(ms, ct);
+
+        var qrText  = _qr.TryDecodeText(ms.ToArray());
+        var transId = TransRefParser.TryExtract(qrText);
+        var bank    = ParserBankDetect.FromQrText(qrText) ?? _opts.DefaultSendingBank;
+
+        if (string.IsNullOrWhiteSpace(transId)) return null; // ไม่มี id ก็หยุด
+
+        // ← SCB API ต้องการ “id” (transRef/txnId) + sendingBank เท่านั้น
+        var env = await _scb.VerifyAsync(transId, bank, ct);
+        if (env?.Status?.Code != 1000 || env.Data is null) return null;
+
+        // 3) map → controller response
+        var d = env.Data;
+        var amount = decimal.TryParse(d.PaidLocalAmount ?? d.Amount ?? "0", NumberStyles.Any,
+            CultureInfo.InvariantCulture, out var v)
+            ? v
+            : 0m;
+        var when = CombineBangkok(d.TransDate, d.TransTime);
+
+        var msisdn = d.Sender?.Proxy?.Type == "MSISDN" ? d.Sender.Proxy.Value : null;
+        var biller = d.Receiver?.Proxy?.Type == "BILLERID" ? d.Receiver.Proxy.Value : null;
+
+        return new VerifyFromImageResponse
+        {
+            TransRef = d.TransRef ?? transId,
+            SendingBank = bank,
+            AmountTHB = amount,
+            CurrencyNumeric = d.PaidLocalCurrency ?? "764",
+            SenderMsisdn = msisdn,
+            BillerId = biller,
+            TransactedAt = when
+        };
+    }
+
+    private static DateTimeOffset CombineBangkok(string? date, string? time)
+    {
+        if (string.IsNullOrWhiteSpace(date) || string.IsNullOrWhiteSpace(time))
+            return DateTimeOffset.UtcNow; // fallback
+
+        var dt = DateTime.ParseExact($"{date} {time}", "yyyyMMdd HH:mm:ss", CultureInfo.InvariantCulture);
+        var local = DateTime.SpecifyKind(dt, DateTimeKind.Unspecified);
+
+        TimeZoneInfo? tz = null;
+        try
+        {
+            tz = TimeZoneInfo.FindSystemTimeZoneById("Asia/Bangkok");
+        }
+        catch
+        {
+        }
+
+        if (tz is null)
+            try
+            {
+                tz = TimeZoneInfo.FindSystemTimeZoneById("SE Asia Standard Time");
+            }
+            catch
+            {
+            }
+
+        return tz is null
+            ? new DateTimeOffset(local, TimeSpan.FromHours(7))
+            : new DateTimeOffset(local, tz.GetUtcOffset(local));
+    }
 }