-- CreateEnum
CREATE TYPE "MeasureStatus" AS ENUM ('OPEN', 'IN_PROGRESS', 'DONE');

-- CreateEnum
CREATE TYPE "MeasurePriority" AS ENUM ('LOW', 'MEDIUM', 'HIGH');

-- CreateTable
CREATE TABLE "measures" (
    "id" TEXT NOT NULL,
    "tenant_id" TEXT NOT NULL,
    "ref_no" INTEGER NOT NULL,
    "title" TEXT NOT NULL,
    "description" TEXT,
    "status" "MeasureStatus" NOT NULL DEFAULT 'OPEN',
    "priority" "MeasurePriority" NOT NULL DEFAULT 'MEDIUM',
    "owner_id" TEXT,
    "due_date" TIMESTAMP(3),
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,
    "created_by" TEXT,

    CONSTRAINT "measures_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "risk_measures" (
    "id" TEXT NOT NULL,
    "tenant_id" TEXT NOT NULL,
    "risk_id" TEXT NOT NULL,
    "measure_id" TEXT NOT NULL,
    "reduction_likelihood" INTEGER NOT NULL DEFAULT 0,
    "reduction_impact" INTEGER NOT NULL DEFAULT 0,

    CONSTRAINT "risk_measures_pkey" PRIMARY KEY ("id")
);

-- CreateIndex
CREATE INDEX "measures_tenant_id_idx" ON "measures"("tenant_id");

-- CreateIndex
CREATE INDEX "measures_tenant_id_status_idx" ON "measures"("tenant_id", "status");

-- CreateIndex
CREATE UNIQUE INDEX "measures_tenant_id_ref_no_key" ON "measures"("tenant_id", "ref_no");

-- CreateIndex
CREATE INDEX "risk_measures_tenant_id_idx" ON "risk_measures"("tenant_id");

-- CreateIndex
CREATE UNIQUE INDEX "risk_measures_risk_id_measure_id_key" ON "risk_measures"("risk_id", "measure_id");

-- AddForeignKey
ALTER TABLE "measures" ADD CONSTRAINT "measures_owner_id_fkey" FOREIGN KEY ("owner_id") REFERENCES "users"("id") ON DELETE SET NULL ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "risk_measures" ADD CONSTRAINT "risk_measures_risk_id_fkey" FOREIGN KEY ("risk_id") REFERENCES "risks"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "risk_measures" ADD CONSTRAINT "risk_measures_measure_id_fkey" FOREIGN KEY ("measure_id") REFERENCES "measures"("id") ON DELETE CASCADE ON UPDATE CASCADE;