CREATE TABLE "reimbursement_templates" (
    "id" UUID NOT NULL,
    "name" VARCHAR(100) NOT NULL,
    "description" TEXT,
    "items" JSONB NOT NULL DEFAULT '[]',
    "sort_order" INTEGER NOT NULL DEFAULT 0,
    "enabled" BOOLEAN NOT NULL DEFAULT true,
    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "created_by" UUID,
    "updated_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updated_by" UUID,

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

CREATE INDEX "reimbursement_templates_enabled_sort_order_idx"
ON "reimbursement_templates"("enabled", "sort_order");

ALTER TABLE "reimbursement_forms"
ADD COLUMN "linked_travel_request_id" UUID;

CREATE INDEX "idx_reimbursement_forms_linked_travel_request"
ON "reimbursement_forms"("linked_travel_request_id");

ALTER TABLE "reimbursement_forms"
ADD CONSTRAINT "reimbursement_forms_linked_travel_request_id_fkey"
FOREIGN KEY ("linked_travel_request_id") REFERENCES "travel_requests"("id")
ON DELETE SET NULL ON UPDATE CASCADE;