-- CreateTable
CREATE TABLE "OutboxEvent" (
    "id" TEXT NOT NULL,
    "type" TEXT NOT NULL,
    "payload" JSONB NOT NULL,
    "attempts" INTEGER NOT NULL DEFAULT 0,
    "lastError" TEXT,
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

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

-- CreateIndex
CREATE INDEX "OutboxEvent_attempts_createdAt_idx" ON "OutboxEvent"("attempts", "createdAt");

-- LISTEN/NOTIFY trigger: fires pg_notify('outbox_event', NEW.id) after each INSERT
-- The worker holds an open pg.Client with LISTEN outbox_event to receive these events.
-- AFTER INSERT ensures NOTIFY fires only after the transaction commits.
CREATE OR REPLACE FUNCTION notify_outbox_event()
RETURNS TRIGGER AS $$
BEGIN
  PERFORM pg_notify('outbox_event', NEW.id);
  RETURN NEW;
END;
$$ LANGUAGE plpgsql;

CREATE TRIGGER outbox_event_notify
AFTER INSERT ON "OutboxEvent"
FOR EACH ROW EXECUTE FUNCTION notify_outbox_event();