import { MigrationInterface, QueryRunner } from 'typeorm';

export class InitSchema1695130227420 implements MigrationInterface {
  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
    CREATE TABLE users (
        id serial4 NOT NULL,
        "name" varchar NOT NULL,
        "password" varchar NOT NULL,
        email varchar NOT NULL,
        "createdAt" timestamp NOT NULL DEFAULT now(),
        CONSTRAINT "users_pk" PRIMARY KEY (id),
        CONSTRAINT "users_email_unique" UNIQUE (email)
    );

    CREATE TABLE swipes (
        id serial4 NOT NULL,
        liked bool NOT NULL,
        "createdAt" timestamp NOT NULL DEFAULT now(),
        "sourceUserId" int4 NULL,
        "targetUserId" int4 NULL,
        CONSTRAINT "swipes_pk" PRIMARY KEY (id)
    );

    ALTER TABLE swipes ADD CONSTRAINT "swipes_target_user_fk" FOREIGN KEY ("targetUserId") REFERENCES users(id);
    ALTER TABLE swipes ADD CONSTRAINT "swipes_source_user_fk" FOREIGN KEY ("sourceUserId") REFERENCES users(id);

    CREATE TABLE pairs (
        id serial4 NOT NULL,
        "createdAt" timestamp NOT NULL DEFAULT now(),
        CONSTRAINT "pairs_pk" PRIMARY KEY (id)
    );

    CREATE TABLE "pair-members" (
        "pairId" int4 NOT NULL,
        "userId" int4 NOT NULL,
        CONSTRAINT "pair_members_pk" PRIMARY KEY ("pairId", "userId")
    );

    ALTER TABLE "pair-members" ADD CONSTRAINT "pair_members_user_fk" FOREIGN KEY ("userId") REFERENCES users(id);
    ALTER TABLE "pair-members" ADD CONSTRAINT "pair_members_pair_fk" FOREIGN KEY ("pairId") REFERENCES pairs(id);
    `);
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
    DROP TABLE users;
    DROP TABLE swipes;
    DROP TABLE pairs;
    DROP TABLE "pair-members";
    `);
  }
}