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 +1,48 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+public class EncounterConfiguration : IEntityTypeConfiguration<Encounter>
+{
+    public void Configure(EntityTypeBuilder<Encounter> builder)
+    {
+        builder.ToTable("encounters", t =>
+        {
+            t.HasCheckConstraint("chk_encounters_encounter_type",
+                "encounter_type IN ('INPATIENT', 'OUTPATIENT', 'EMERGENCY')");
+            t.HasCheckConstraint("chk_encounters_status",
+                "status IN ('SCHEDULED', 'ACTIVE', 'DISCHARGED', 'CANCELLED')");
+        });
+        builder.HasKey(e => e.Id);
+        builder.Property(e => e.Id).HasColumnName("id").HasDefaultValueSql("gen_random_uuid()");
+        builder.Property(e => e.PatientId).HasColumnName("patient_id");
+        builder.Property(e => e.EncounterType)
+            .HasColumnName("encounter_type")
+            .HasMaxLength(20)
+            .HasConversion(
+                v => v.ToDbString(),
+                v => EncounterTypeExtensions.FromDbString(v))
+            .IsRequired();
+        builder.Property(e => e.Status)
+            .HasColumnName("status")
+            .HasMaxLength(20)
+            .HasConversion(
+                v => v.ToDbString(),
+                v => EncounterStatusExtensions.FromDbString(v))
+            .HasDefaultValueSql("'SCHEDULED'")
+            .HasSentinel((EncounterStatus)(-1));
+        builder.Property(e => e.Department).HasColumnName("department").HasMaxLength(100).IsRequired();
+        builder.Property(e => e.AttendingPhysician).HasColumnName("attending_physician").HasMaxLength(200).IsRequired();
+        builder.Property(e => e.AdmittedAt).HasColumnName("admitted_at").HasDefaultValueSql("NOW()");
+        builder.Property(e => e.DischargedAt).HasColumnName("discharged_at");
+        builder.Property(e => e.CreatedAt).HasColumnName("created_at").HasDefaultValueSql("NOW()");
+
+        builder.HasOne(e => e.Patient)
+            .WithMany(p => p.Encounters)
+            .HasForeignKey(e => e.PatientId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasIndex(e => new { e.PatientId, e.AdmittedAt });
+        builder.HasIndex(e => new { e.Status, e.AdmittedAt })
+            .HasFilter("status = 'ACTIVE'");
+    }
+}