-- Guided-tour scenarios, their steps, the catalogue of valid highlight
-- targets, and per-user "seen" progress. All four tables are new — plain
-- CREATEs, nothing to backfill. See issues #42 (the tour engine) and #44
-- (admin CRUD + the DB-backed model this migration implements, which
-- revises #42's originally-planned in-code registry).

-- CreateTable
CREATE TABLE "tour_target" (
    "key" TEXT NOT NULL,
    "description" TEXT NOT NULL,

    CONSTRAINT "tour_target_pkey" PRIMARY KEY ("key")
);

-- CreateTable
CREATE TABLE "tour_scenario" (
    "id" SERIAL NOT NULL,
    "key" TEXT NOT NULL,
    "name" TEXT NOT NULL,
    "enabled" BOOLEAN NOT NULL DEFAULT true,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMP(3) NOT NULL,

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

-- CreateTable
CREATE TABLE "tour_scenario_step" (
    "id" SERIAL NOT NULL,
    "scenario_id" INTEGER NOT NULL,
    "order" INTEGER NOT NULL,
    "route" TEXT,
    "target_key" TEXT NOT NULL,
    "title" TEXT NOT NULL,
    "content" TEXT NOT NULL,

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

-- CreateTable
CREATE TABLE "tour_progress" (
    "user_profile_id" INTEGER NOT NULL,
    "scenario_id" INTEGER NOT NULL,
    "completed_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "tour_progress_pkey" PRIMARY KEY ("user_profile_id","scenario_id")
);

-- CreateIndex
CREATE UNIQUE INDEX "tour_scenario_key_key" ON "tour_scenario"("key");

-- CreateIndex
CREATE UNIQUE INDEX "tour_scenario_step_scenario_id_order_key" ON "tour_scenario_step"("scenario_id", "order");

-- AddForeignKey
ALTER TABLE "tour_scenario_step" ADD CONSTRAINT "tour_scenario_step_scenario_id_fkey" FOREIGN KEY ("scenario_id") REFERENCES "tour_scenario"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "tour_scenario_step" ADD CONSTRAINT "tour_scenario_step_target_key_fkey" FOREIGN KEY ("target_key") REFERENCES "tour_target"("key") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "tour_progress" ADD CONSTRAINT "tour_progress_user_profile_id_fkey" FOREIGN KEY ("user_profile_id") REFERENCES "user_profiles"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "tour_progress" ADD CONSTRAINT "tour_progress_scenario_id_fkey" FOREIGN KEY ("scenario_id") REFERENCES "tour_scenario"("id") ON DELETE CASCADE ON UPDATE CASCADE;