-- CreateTable
CREATE TABLE "media_tasks" (
    "id" CHAR(26) NOT NULL,
    "type" VARCHAR(16) NOT NULL,
    "status" VARCHAR(24) NOT NULL DEFAULT 'queued',
    "title" VARCHAR(200) NOT NULL,
    "customer_id" CHAR(26) NOT NULL,
    "customer_name" VARCHAR(128) NOT NULL,
    "created_by" CHAR(26) NOT NULL,
    "created_by_name" VARCHAR(64) NOT NULL,
    "item_total" INTEGER NOT NULL,
    "item_succeeded" INTEGER NOT NULL DEFAULT 0,
    "item_failed" INTEGER NOT NULL DEFAULT 0,
    "item_skipped" INTEGER NOT NULL DEFAULT 0,
    "estimated_items" INTEGER NOT NULL,
    "estimated_cost" DECIMAL(14,4) NOT NULL,
    "estimated_seconds" INTEGER NOT NULL,
    "progress" INTEGER NOT NULL DEFAULT 0,
    "payload_json" JSONB NOT NULL,
    "cancel_requested_at" TIMESTAMPTZ(3),
    "canceled_at" TIMESTAMPTZ(3),
    "canceled_by" CHAR(26),
    "last_error_code" VARCHAR(32),
    "last_error_message" VARCHAR(500),
    "started_at" TIMESTAMPTZ(3),
    "finished_at" TIMESTAMPTZ(3),
    "created_at" TIMESTAMPTZ(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMPTZ(3) NOT NULL,

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

-- CreateTable
CREATE TABLE "media_items" (
    "id" CHAR(26) NOT NULL,
    "task_id" CHAR(26) NOT NULL,
    "seq" INTEGER NOT NULL,
    "status" VARCHAR(24) NOT NULL DEFAULT 'queued',
    "failure_code" VARCHAR(64),
    "failure_message" VARCHAR(500),
    "attempts" INTEGER NOT NULL DEFAULT 0,
    "started_at" TIMESTAMPTZ(3),
    "finished_at" TIMESTAMPTZ(3),
    "created_at" TIMESTAMPTZ(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_at" TIMESTAMPTZ(3) NOT NULL,

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

-- CreateTable
CREATE TABLE "task_events" (
    "id" CHAR(26) NOT NULL,
    "task_id" CHAR(26) NOT NULL,
    "seq" BIGSERIAL NOT NULL,
    "event_type" VARCHAR(16) NOT NULL,
    "payload_json" JSONB NOT NULL,
    "created_at" TIMESTAMPTZ(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

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

-- CreateIndex
CREATE INDEX "media_tasks_customer_id_created_at_idx" ON "media_tasks"("customer_id", "created_at" DESC);

-- CreateIndex
CREATE INDEX "media_tasks_status_created_at_idx" ON "media_tasks"("status", "created_at" DESC);

-- CreateIndex
CREATE INDEX "media_tasks_type_created_at_idx" ON "media_tasks"("type", "created_at" DESC);

-- CreateIndex
CREATE INDEX "media_tasks_created_by_created_at_idx" ON "media_tasks"("created_by", "created_at" DESC);

-- CreateIndex
CREATE INDEX "media_items_task_id_status_idx" ON "media_items"("task_id", "status");

-- CreateIndex
CREATE INDEX "media_items_status_idx" ON "media_items"("status");

-- CreateIndex
CREATE UNIQUE INDEX "media_items_task_id_seq_key" ON "media_items"("task_id", "seq");

-- CreateIndex
CREATE UNIQUE INDEX "task_events_seq_key" ON "task_events"("seq");

-- CreateIndex
CREATE INDEX "task_events_task_id_seq_idx" ON "task_events"("task_id", "seq");

-- AddForeignKey
ALTER TABLE "media_items" ADD CONSTRAINT "media_items_task_id_fkey" FOREIGN KEY ("task_id") REFERENCES "media_tasks"("id") ON DELETE CASCADE ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "task_events" ADD CONSTRAINT "task_events_task_id_fkey" FOREIGN KEY ("task_id") REFERENCES "media_tasks"("id") ON DELETE CASCADE ON UPDATE CASCADE;