-- CreateEnum
CREATE TYPE "FlowStatus" AS ENUM ('pending', 'running', 'success', 'failed', 'cancelled');

-- CreateTable
CREATE TABLE "User" (
    "id" TEXT NOT NULL,
    "email" TEXT NOT NULL,
    "pwd_hash" TEXT NOT NULL,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

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

-- CreateTable
CREATE TABLE "Session" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "token_hash" TEXT NOT NULL,
    "expires_at" TIMESTAMP(3) NOT NULL,

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

-- CreateTable
CREATE TABLE "FlowRun" (
    "id" TEXT NOT NULL,
    "user_id" TEXT NOT NULL,
    "flow_key" TEXT NOT NULL,
    "status" "FlowStatus" NOT NULL DEFAULT 'pending',
    "dry_run" BOOLEAN NOT NULL DEFAULT false,
    "started_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "ended_at" TIMESTAMP(3),
    "exit_code" INTEGER,

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

-- CreateTable
CREATE TABLE "FlowStep" (
    "id" TEXT NOT NULL,
    "flow_run_id" TEXT NOT NULL,
    "step_index" INTEGER NOT NULL,
    "command_key" TEXT NOT NULL,
    "args_json" TEXT,
    "stdout" TEXT,
    "stderr" TEXT,
    "exit_code" INTEGER,
    "started_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "ended_at" TIMESTAMP(3),

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

-- CreateIndex
CREATE UNIQUE INDEX "User_email_key" ON "User"("email");

-- CreateIndex
CREATE UNIQUE INDEX "Session_token_hash_key" ON "Session"("token_hash");

-- AddForeignKey
ALTER TABLE "Session" ADD CONSTRAINT "Session_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "FlowRun" ADD CONSTRAINT "FlowRun_user_id_fkey" FOREIGN KEY ("user_id") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "FlowStep" ADD CONSTRAINT "FlowStep_flow_run_id_fkey" FOREIGN KEY ("flow_run_id") REFERENCES "FlowRun"("id") ON DELETE CASCADE ON UPDATE CASCADE;