implement intercity booking management and booking window websocket integration

apps/edr-freight-api/src/migrations/1980000000000-YardCountryEnumAndRouteDirection.ts

@@ -0,0 +1,69 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+/**
+ * Yard country becomes a two-value enum (Ethiopia | Djibouti) and every route
+ * freezes its trade direction from the yard countries:
+ *   Ethiopia → Djibouti = EXPORT, Djibouti → Ethiopia = IMPORT,
+ *   same country = DOMESTIC (shown as "Intercity"; disabled for scheduling
+ *   and contracts for now).
+ *
+ * Existing yard rows are normalized case-insensitively; anything mentioning
+ * Djibouti maps there, everything else maps to Ethiopia (the line only serves
+ * these two countries). A CHECK constraint keeps future writes honest.
+ */
+export class YardCountryEnumAndRouteDirection1980000000000 implements MigrationInterface {
+  name = 'YardCountryEnumAndRouteDirection1980000000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      UPDATE freight.yards
+         SET country = CASE
+           WHEN lower(trim(country)) LIKE '%djib%' THEN 'Djibouti'
+           ELSE 'Ethiopia'
+         END
+    `);
+    await queryRunner.query(`
+      ALTER TABLE freight.yards
+        DROP CONSTRAINT IF EXISTS chk_yards_country,
+        ADD CONSTRAINT chk_yards_country CHECK (country IN ('Ethiopia', 'Djibouti'))
+    `);
+
+    await queryRunner.query(`
+      ALTER TABLE freight.routes
+        ADD COLUMN IF NOT EXISTS direction varchar(10)
+    `);
+    await queryRunner.query(`
+      UPDATE freight.routes r
+         SET direction = CASE
+           WHEN o.country = 'Djibouti' AND d.country = 'Ethiopia' THEN 'IMPORT'
+           WHEN o.country = 'Ethiopia' AND d.country = 'Djibouti' THEN 'EXPORT'
+           ELSE 'DOMESTIC'
+         END
+        FROM freight.yards o, freight.yards d
+       WHERE o.id = r.origin_yard_id
+         AND d.id = r.destination_yard_id
+    `);
+    // Orphan origin/destination (deleted yard) — no way to classify; park as
+    // DOMESTIC, which is blocked everywhere, so nothing can schedule on it.
+    await queryRunner.query(`
+      UPDATE freight.routes SET direction = 'DOMESTIC' WHERE direction IS NULL
+    `);
+    await queryRunner.query(`
+      ALTER TABLE freight.routes
+        ALTER COLUMN direction SET NOT NULL,
+        DROP CONSTRAINT IF EXISTS chk_routes_direction,
+        ADD CONSTRAINT chk_routes_direction CHECK (direction IN ('IMPORT', 'EXPORT', 'DOMESTIC'))
+    `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(`
+      ALTER TABLE freight.routes
+        DROP CONSTRAINT IF EXISTS chk_routes_direction,
+        DROP COLUMN IF EXISTS direction
+    `);
+    await queryRunner.query(`
+      ALTER TABLE freight.yards DROP CONSTRAINT IF EXISTS chk_yards_country
+    `);
+  }
+}