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Fix Redundance Reference

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This commit is contained in:
Thanakarn Klangkasame
2025-10-03 10:33:55 +07:00
parent 33470d5fd4
commit d266463c9f
20 changed files with 440 additions and 29 deletions
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4
AMREZ.EOP.Application/UseCases/Payments/SlipVerification/BankDetect/ParserBankDetect.cs
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@@ -1,12 +1,10 @@
using AMREZ.EOP.Abstractions.Applications.UseCases.Payments.SlipVerification.BankDetect;
using AMREZ.EOP.Application.UseCases.Payments.SlipVerification.QrDecode;
using SkiaSharp;
namespace AMREZ.EOP.Application.UseCases.Payments.SlipVerification.BankDetect;
public static class BankDetect
public static class ParserBankDetect
{
// SCB=014, KBank=004
public static string? FromQrText(string? raw)
{
if (string.IsNullOrWhiteSpace(raw)) return null;

85
AMREZ.EOP.Application/UseCases/Payments/SlipVerification/QrDecode/TransRefParser.cs
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@@ -1,6 +1,87 @@
using System.Text.RegularExpressions;
namespace AMREZ.EOP.Application.UseCases.Payments.SlipVerification.QrDecode;
public class TransRefParser
public static partial class TransRefParser
{
[GeneratedRegex(@"(?i)(?:[?&](?:transref|transactionid|txnid|transid)=)(?<id>[-A-Za-z0-9]{10,64})",
RegexOptions.Compiled | RegexOptions.IgnoreCase)]
private static partial Regex QueryId();
[GeneratedRegex(@"(?<![A-Za-z0-9])(?<id>[0-9]{6,14}[A-Za-z0-9]{6,40})(?![A-Za-z0-9])",
RegexOptions.Compiled)]
private static partial Regex FallbackShape();
public static string? TryExtract(string? raw)
{
if (string.IsNullOrWhiteSpace(raw)) return null;
// 1) ?transRef=... ใน URL
var q = QueryId().Match(raw);
if (q.Success) return q.Groups["id"].Value;
// 2) เดิน TLV แบบ recursive
foreach (var val in EnumerateTlvValues(raw))
{
// ต้องเป็น a-z0-9 ล้วน ยาวพอสมควร และมีตัวอักษรด้วย (กันเคสเป็นตัวเลขล้วน)
if (val.Length is >= 18 and <= 40
&& val.All(IsAlphaNum)
&& val.Any(char.IsLetter))
return val;
}
// 3) เผื่อกรณีหลุดรูปแบบ TLV
var f = FallbackShape().Match(raw);
return f.Success ? f.Groups["id"].Value : null;
}
private static IEnumerable<string> EnumerateTlvValues(string s)
{
int i = 0;
while (i + 4 <= s.Length)
{
// รูปแบบ TLV: [ID(2)][LEN(2)][VALUE(LEN)]
if (!char.IsDigit(s[i]) || !char.IsDigit(s[i + 1]) ||
!char.IsDigit(s[i + 2]) || !char.IsDigit(s[i + 3]))
yield break;
var id = s.Substring(i, 2);
if (!int.TryParse(s.AsSpan(i + 2, 2), out var len)) yield break;
var end = i + 4 + len;
if (len < 0 || end > s.Length) yield break;
var val = s.Substring(i + 4, len);
yield return val;
// ถ้า value ดูเป็น TLV ซ้อนอยู่ ให้ไล่ต่อ
if (LooksLikeTlv(val))
foreach (var inner in EnumerateTlvValues(val))
yield return inner;
// CRC tag "63" ไม่เกี่ยว แต่เราไม่ถึงเงื่อนไข length อยู่แล้ว
i = end;
}
}
private static bool LooksLikeTlv(string s)
{
int i = 0;
while (i + 4 <= s.Length)
{
if (!char.IsDigit(s[i]) || !char.IsDigit(s[i + 1]) ||
!char.IsDigit(s[i + 2]) || !char.IsDigit(s[i + 3]))
return false;
if (!int.TryParse(s.AsSpan(i + 2, 2), out var len)) return false;
i += 4 + len;
if (i == s.Length) return true;
if (i > s.Length) return false;
}
return false;
}
private static bool IsAlphaNum(char c) =>
(c >= '0' && c <= '9') ||
(c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z');
}

20
AMREZ.EOP.Application/UseCases/Payments/SlipVerification/QrDecode/ZxingQrDecoder.cs
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@@ -1,6 +1,22 @@
using AMREZ.EOP.Abstractions.Applications.UseCases.Payments.SlipVerification.QrDecode;
using SkiaSharp;
using ZXing.SkiaSharp;
namespace AMREZ.EOP.Application.UseCases.Payments.SlipVerification.QrDecode;
public class ZxingQrDecoder
public sealed class ZxingQrDecoder : IQrDecoder
{
public string? TryDecodeText(byte[] imageBytes)
{
using var bmp = SKBitmap.Decode(imageBytes);
if (bmp is null) return null;
var reader = new BarcodeReader
{
AutoRotate = true,
Options = { TryHarder = true, PossibleFormats = new[] { ZXing.BarcodeFormat.QR_CODE } }
};
var res = reader.Decode(bmp);
return res?.Text;
}
}

91
AMREZ.EOP.Application/UseCases/Payments/SlipVerification/VerifyFromImageUseCase.cs
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@@ -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));
}
}