Created ECNService

FabApprovalWorkerService/Services/ECNService.cs

@@ -0,0 +1,78 @@
+using FabApprovalWorkerService.Models;
+
+using System.Text;
+
+namespace FabApprovalWorkerService.Services;
+
+public interface IECNService {
+    Task<IEnumerable<ECN>> GetExpiringTECNs();
+    Task<IEnumerable<ECN>> GetExpiredTECNs();
+}
+
+public class ECNService : IECNService {
+    private readonly ILogger<ECNService> _logger;
+    private readonly IDalService _dalService;
+
+    public ECNService(ILogger<ECNService> logger, IDalService dalService) {
+        _logger = logger ?? throw new ArgumentNullException("ILogger not injected");
+        _dalService = dalService ?? throw new ArgumentNullException("IDalService not injected");
+    }
+
+    public async Task<IEnumerable<ECN>> GetExpiredTECNs() {
+        try {
+            _logger.LogInformation("Attempting to get all TECNs expired in the last day");
+
+            string today = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+            string yesterday = DateTime.Now.AddDays(-1).ToString("yyyy-MM-dd HH:mm:ss");
+
+            StringBuilder queryBuilder = new StringBuilder();
+            queryBuilder.Append("select ECNNumber, IsTECN, ExpirationDate, ExtensionDate, OriginatorID, Title ");
+            queryBuilder.Append($"from ECN where IsTECN = 1 and ");
+            queryBuilder.Append($"ExpirationDate between '{yesterday}' ");
+            queryBuilder.Append($"and '{today}'");
+
+            IEnumerable<ECN> expiredTecns = (await _dalService.QueryAsync<ECN>(queryBuilder.ToString()))
+                                        .Where(e => e.ExtensionDate is null || e.ExtensionDate < DateTime.Now)
+                                        .ToList();
+
+            _logger.LogInformation($"Found {expiredTecns.Count()} expired TECNs");
+
+            return expiredTecns;
+        } catch (Exception ex) {
+            StringBuilder errMsgBuilder = new();
+            errMsgBuilder.Append("An exception occurred when attempting to get all TECNs expired in the last day. ");
+            errMsgBuilder.Append($"Exception: {ex.Message}");
+            _logger.LogError(errMsgBuilder.ToString());
+            throw;
+        }
+    }
+
+    public async Task<IEnumerable<ECN>> GetExpiringTECNs() {
+        try {
+            _logger.LogInformation("Attempting to get all TECNs expiring in the next five days");
+
+            string today = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
+            string fiveDaysFromToday = DateTime.Now.AddDays(5).ToString("yyyy-MM-dd HH:mm:ss");
+
+            StringBuilder queryBuilder = new StringBuilder();
+            queryBuilder.Append("select ECNNumber, IsTECN, ExpirationDate, ExtensionDate, OriginatorID, Title ");
+            queryBuilder.Append($"from ECN where IsTECN = 1 and ");
+            queryBuilder.Append($"ExpirationDate between '{today}' ");
+            queryBuilder.Append($"and '{fiveDaysFromToday}'");
+
+            IEnumerable<ECN> expiringTecns = (await _dalService.QueryAsync<ECN>(queryBuilder.ToString()))
+                                        .Where(e => e.ExtensionDate is null || e.ExtensionDate <= DateTime.Now.AddDays(5))
+                                        .ToList();
+
+            _logger.LogInformation($"Found {expiringTecns.Count()} expiring TECNs");
+
+            return expiringTecns;
+        } catch (Exception ex) {
+            StringBuilder errMsgBuilder = new();
+            errMsgBuilder.Append("An exception occurred when attempting to get all TECNs expiring in the next five days. ");
+            errMsgBuilder.Append($"Exception: {ex.Message}");
+            _logger.LogError(errMsgBuilder.ToString());
+            throw;
+        }
+    }
+}