-- CreateEnum
CREATE TYPE "EmployeeTrainingType" AS ENUM ('internal', 'external', 'online');

-- CreateEnum
CREATE TYPE "EmployeeTrainingStatus" AS ENUM ('planned', 'in_progress', 'completed', 'cancelled');

-- CreateTable
CREATE TABLE "employee_trainings" (
    "id" UUID NOT NULL,
    "employee_id" UUID NOT NULL,
    "name" TEXT NOT NULL,
    "training_type" "EmployeeTrainingType" NOT NULL,
    "start_date" DATE NOT NULL,
    "end_date" DATE,
    "status" "EmployeeTrainingStatus" NOT NULL,
    "notes" 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_trainings_pkey" PRIMARY KEY ("id")
);

-- CreateTable
CREATE TABLE "employee_certificates" (
    "id" UUID NOT NULL,
    "employee_id" UUID NOT NULL,
    "name" TEXT NOT NULL,
    "issuer" TEXT NOT NULL,
    "obtained_date" DATE NOT NULL,
    "expiry_date" DATE,
    "certificate_no" TEXT,
    "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_certificates_pkey" PRIMARY KEY ("id")
);

-- CreateIndex
CREATE INDEX "idx_employee_trainings_employee_start" ON "employee_trainings"("employee_id", "start_date");

-- CreateIndex
CREATE INDEX "idx_employee_trainings_employee_status" ON "employee_trainings"("employee_id", "status");

-- CreateIndex
CREATE INDEX "idx_employee_certificates_employee_obtained" ON "employee_certificates"("employee_id", "obtained_date");

-- CreateIndex
CREATE INDEX "idx_employee_certificates_employee_expiry" ON "employee_certificates"("employee_id", "expiry_date");

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

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