CREATE TYPE "public"."import_job_status" AS ENUM('queued', 'running', 'succeeded', 'succeeded_with_issues', 'failed', 'cancelled', 'stale');--> statement-breakpoint
CREATE TYPE "public"."source_connection_kind" AS ENUM('wxr');--> statement-breakpoint
CREATE TYPE "public"."source_snapshot_kind" AS ENUM('wxr', 'sitemap', 'media_bundle', 'manual_url_list');--> statement-breakpoint
CREATE TABLE "import_jobs" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"site_id" uuid NOT NULL,
	"source_snapshot_id" uuid NOT NULL,
	"status" "import_job_status" NOT NULL,
	"mapping_version" text NOT NULL,
	"idempotency_key" text NOT NULL,
	"attempt" integer DEFAULT 0 NOT NULL,
	"started_at" timestamp with time zone,
	"finished_at" timestamp with time zone,
	"error_code" text,
	"error_summary" text,
	"report_path" text,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
	CONSTRAINT "import_jobs_idempotency_key_unique" UNIQUE("idempotency_key")
);
--> statement-breakpoint
CREATE TABLE "source_connections" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"site_id" uuid NOT NULL,
	"kind" "source_connection_kind" NOT NULL,
	"name" text NOT NULL,
	"configuration" jsonb NOT NULL,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL
);
--> statement-breakpoint
CREATE TABLE "source_records" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"site_id" uuid NOT NULL,
	"source_connection_id" uuid NOT NULL,
	"source_snapshot_id" uuid NOT NULL,
	"import_job_id" uuid NOT NULL,
	"source_type" text NOT NULL,
	"source_id" text NOT NULL,
	"locale" text NOT NULL,
	"source_url" text,
	"raw_location" text NOT NULL,
	"source_checksum" text,
	"normalized_checksum" text,
	"parse_status" text NOT NULL,
	"content_entry_id" uuid,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL
);
--> statement-breakpoint
CREATE TABLE "source_snapshots" (
	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
	"site_id" uuid NOT NULL,
	"source_connection_id" uuid NOT NULL,
	"kind" "source_snapshot_kind" NOT NULL,
	"storage_path" text NOT NULL,
	"sha256" text NOT NULL,
	"byte_size" bigint NOT NULL,
	"adapter_version" text NOT NULL,
	"captured_at" timestamp with time zone NOT NULL,
	"metadata" jsonb NOT NULL,
	"created_at" timestamp with time zone DEFAULT now() NOT NULL
);
--> statement-breakpoint
ALTER TABLE "import_jobs" ADD CONSTRAINT "import_jobs_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "import_jobs" ADD CONSTRAINT "import_jobs_source_snapshot_id_source_snapshots_id_fk" FOREIGN KEY ("source_snapshot_id") REFERENCES "public"."source_snapshots"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_connections" ADD CONSTRAINT "source_connections_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_records" ADD CONSTRAINT "source_records_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_records" ADD CONSTRAINT "source_records_source_connection_id_source_connections_id_fk" FOREIGN KEY ("source_connection_id") REFERENCES "public"."source_connections"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_records" ADD CONSTRAINT "source_records_source_snapshot_id_source_snapshots_id_fk" FOREIGN KEY ("source_snapshot_id") REFERENCES "public"."source_snapshots"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_records" ADD CONSTRAINT "source_records_import_job_id_import_jobs_id_fk" FOREIGN KEY ("import_job_id") REFERENCES "public"."import_jobs"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_snapshots" ADD CONSTRAINT "source_snapshots_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "source_snapshots" ADD CONSTRAINT "source_snapshots_source_connection_id_source_connections_id_fk" FOREIGN KEY ("source_connection_id") REFERENCES "public"."source_connections"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
CREATE UNIQUE INDEX "source_records_identity_uq" ON "source_records" USING btree ("site_id","source_connection_id","source_type","source_id","locale","source_snapshot_id");--> statement-breakpoint
CREATE UNIQUE INDEX "source_snapshots_uq" ON "source_snapshots" USING btree ("site_id","kind","sha256");--> statement-breakpoint
-- ↓ 手写追加（drizzle-kit 不生成触发器）：快照不可变。sf_forbid_update 为共享函数，
--   后续 content_revisions / audit_logs / build_input_snapshots 三张不可变表复用（Task 8/12）。
CREATE OR REPLACE FUNCTION sf_forbid_update() RETURNS trigger AS $$
BEGIN RAISE EXCEPTION 'immutable table %: UPDATE forbidden', TG_TABLE_NAME; END $$ LANGUAGE plpgsql;--> statement-breakpoint
CREATE TRIGGER source_snapshots_immutable BEFORE UPDATE OR DELETE ON source_snapshots
  FOR EACH ROW EXECUTE FUNCTION sf_forbid_update();