CREATE TABLE "documents" (
	"id" integer PRIMARY KEY GENERATED ALWAYS AS IDENTITY (sequence name "documents_id_seq" INCREMENT BY 1 MINVALUE 1 MAXVALUE 2147483647 START WITH 1 CACHE 1),
	"contract_id" integer NOT NULL,
	"doc_number" varchar(100) NOT NULL,
	"title" varchar(255) NOT NULL,
	"status" varchar(50) DEFAULT 'ACTIVE' NOT NULL,
	"issued_date" date,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL
);
--> statement-breakpoint
CREATE TABLE "issue_stages" (
	"id" integer PRIMARY KEY GENERATED ALWAYS AS IDENTITY (sequence name "issue_stages_id_seq" INCREMENT BY 1 MINVALUE 1 MAXVALUE 2147483647 START WITH 1 CACHE 1),
	"document_id" integer NOT NULL,
	"stage_name" varchar(100) NOT NULL,
	"plan_date" date,
	"actual_date" date,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL
);
--> statement-breakpoint
CREATE TABLE "revisions" (
	"id" integer PRIMARY KEY GENERATED ALWAYS AS IDENTITY (sequence name "revisions_id_seq" INCREMENT BY 1 MINVALUE 1 MAXVALUE 2147483647 START WITH 1 CACHE 1),
	"issue_stage_id" integer NOT NULL,
	"revision" varchar(50) NOT NULL,
	"file_path" varchar(255),
	"approved_date" date,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL
);
--> statement-breakpoint
ALTER TABLE "documents" ADD CONSTRAINT "documents_contract_id_contracts_id_fk" FOREIGN KEY ("contract_id") REFERENCES "public"."contracts"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "issue_stages" ADD CONSTRAINT "issue_stages_document_id_documents_id_fk" FOREIGN KEY ("document_id") REFERENCES "public"."documents"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "revisions" ADD CONSTRAINT "revisions_issue_stage_id_issue_stages_id_fk" FOREIGN KEY ("issue_stage_id") REFERENCES "public"."issue_stages"("id") ON DELETE cascade ON UPDATE no action;