feature: Schema, Migrations, Core CRUD, and Redis Threshold Cache

2026-06-16 17:59:16 +08:00
commit 882d4af3e6
63 changed files with 3923 additions and 0 deletions
@@ -0,0 +1,61 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+public class ClinicalAlertConfiguration : IEntityTypeConfiguration<ClinicalAlert>
+{
+    public void Configure(EntityTypeBuilder<ClinicalAlert> builder)
+    {
+        builder.ToTable("clinical_alerts", t =>
+        {
+            t.HasCheckConstraint("chk_clinical_alerts_severity",
+                "severity IN ('WARNING', 'CRITICAL')");
+            t.HasCheckConstraint("chk_clinical_alerts_status",
+                "status IN ('OPEN', 'ACKNOWLEDGED', 'RESOLVED', 'ESCALATED')");
+            t.HasCheckConstraint("chk_clinical_alerts_alert_type",
+                "alert_type IN ('SEPSIS_WARNING', 'CRITICAL_HEART_RATE', 'CRITICAL_TEMP_C', " +
+                "'CRITICAL_POTASSIUM_MEQ_L', 'CRITICAL_SPO2', 'CRITICAL_RESP_RATE', 'CRITICAL_WBC_K_UL')");
+        });
+        builder.HasKey(a => a.Id);
+        builder.Property(a => a.Id).HasColumnName("id").HasDefaultValueSql("gen_random_uuid()");
+        builder.Property(a => a.EncounterId).HasColumnName("encounter_id");
+        builder.Property(a => a.PatientId).HasColumnName("patient_id");
+        builder.Property(a => a.ObservationId).HasColumnName("observation_id");
+        builder.Property(a => a.AlertType)
+            .HasColumnName("alert_type")
+            .HasMaxLength(50)
+            .HasConversion(
+                v => v.ToDbString(),
+                v => AlertTypeExtensions.FromDbString(v))
+            .IsRequired();
+        builder.Property(a => a.Severity)
+            .HasColumnName("severity")
+            .HasMaxLength(20)
+            .HasConversion(
+                v => v.ToDbString(),
+                v => AlertSeverityExtensions.FromDbString(v))
+            .IsRequired();
+        builder.Property(a => a.Details).HasColumnName("details").IsRequired();
+        builder.Property(a => a.Status)
+            .HasColumnName("status")
+            .HasMaxLength(20)
+            .HasConversion(
+                v => v.ToDbString(),
+                v => AlertStatusExtensions.FromDbString(v))
+            .HasDefaultValueSql("'OPEN'")
+            .HasSentinel((AlertStatus)(-1));
+        builder.Property(a => a.AcknowledgedAt).HasColumnName("acknowledged_at");
+        builder.Property(a => a.AcknowledgedBy).HasColumnName("acknowledged_by").HasMaxLength(200);
+        builder.Property(a => a.ResolvedAt).HasColumnName("resolved_at");
+        builder.Property(a => a.TriggeredAt).HasColumnName("triggered_at").HasDefaultValueSql("NOW()");
+
+        builder.HasOne(a => a.Encounter)
+            .WithMany(e => e.Alerts)
+            .HasForeignKey(a => a.EncounterId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasIndex(a => new { a.EncounterId, a.TriggeredAt });
+        builder.HasIndex(a => new { a.PatientId, a.TriggeredAt });
+        builder.HasIndex(a => new { a.Severity, a.TriggeredAt })
+            .HasFilter("status = 'OPEN'");
+    }
+}