Initial commit for homaroma

apps/backend/prisma/migrations/20260501112747_add_coupon_system/migration.sql

@@ -0,0 +1,24 @@
+-- AlterTable
+ALTER TABLE "Order" ADD COLUMN     "couponCode" TEXT,
+ADD COLUMN     "discountAmount" DOUBLE PRECISION NOT NULL DEFAULT 0;
+
+-- CreateTable
+CREATE TABLE "Coupon" (
+    "id" SERIAL NOT NULL,
+    "code" TEXT NOT NULL,
+    "type" TEXT NOT NULL,
+    "value" DOUBLE PRECISION NOT NULL,
+    "minPurchase" DOUBLE PRECISION NOT NULL DEFAULT 0,
+    "maxDiscount" DOUBLE PRECISION,
+    "usageLimit" INTEGER,
+    "usedCount" INTEGER NOT NULL DEFAULT 0,
+    "expiresAt" TIMESTAMP(3),
+    "isActive" BOOLEAN NOT NULL DEFAULT true,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "Coupon_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Coupon_code_key" ON "Coupon"("code");