-- AlterTable
ALTER TABLE "employees" ADD COLUMN "avatar_path" TEXT;

-- CreateEnum
CREATE TYPE "EmployeeContractType" AS ENUM ('labor', 'nda', 'non_compete', 'internship');

-- CreateTable
CREATE TABLE "employee_contracts" (
    "id" UUID NOT NULL,
    "employee_id" UUID NOT NULL,
    "contract_no" TEXT NOT NULL,
    "contract_type" "EmployeeContractType" NOT NULL,
    "start_date" DATE NOT NULL,
    "end_date" DATE NOT NULL,
    "terminated_date" DATE,
    "attachment_path" TEXT,
    "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 "employee_contracts_pkey" PRIMARY KEY ("id")
);

-- CreateIndex
CREATE UNIQUE INDEX "employee_contracts_employee_contract_no_ux" ON "employee_contracts"("employee_id", "contract_no");

-- CreateIndex
CREATE INDEX "idx_employee_contracts_employee_start" ON "employee_contracts"("employee_id", "start_date");

-- CreateIndex
CREATE INDEX "idx_employee_contracts_employee_end" ON "employee_contracts"("employee_id", "end_date");

-- AddForeignKey
ALTER TABLE "employee_contracts" ADD CONSTRAINT "employee_contracts_employee_id_fkey" FOREIGN KEY ("employee_id") REFERENCES "employees"("id") ON DELETE CASCADE ON UPDATE CASCADE;