import {
  MigrationInterface,
  QueryRunner,
  Table,
  TableColumn,
  TableForeignKey,
  TableIndex
} from 'typeorm';

export class UserTable1614275816426 implements MigrationInterface {
  indexFields = ['name', 'email', 'username'];
  tableName = 'user';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.createTable(
      new Table({
        name: this.tableName,
        columns: [
          {
            name: 'id',
            type: 'int',
            isPrimary: true,
            isGenerated: true,
            generationStrategy: 'increment'
          },
          {
            name: 'username',
            type: 'varchar',
            isNullable: false,
            isUnique: true,
            length: '100'
          },
          {
            name: 'email',
            type: 'varchar',
            isNullable: false,
            isUnique: true,
            length: '100'
          },
          {
            name: 'password',
            type: 'varchar',
            isNullable: true
          },
          {
            name: 'name',
            type: 'varchar',
            isNullable: true
          },
          {
            name: 'address',
            type: 'varchar',
            isNullable: true
          },
          {
            name: 'contact',
            type: 'varchar',
            isNullable: true
          },
          {
            name: 'salt',
            type: 'varchar',
            isNullable: true
          },
          {
            name: 'token',
            type: 'varchar',
            isNullable: true
          },
          {
            name: 'status',
            type: 'varchar',
            default: `'active'`
          },
          {
            name: 'createdAt',
            type: 'timestamp',
            default: 'now()'
          },
          {
            name: 'updatedAt',
            type: 'timestamp',
            default: 'now()'
          }
        ]
      }),
      false
    );

    for (const field of this.indexFields) {
      await queryRunner.createIndex(
        this.tableName,
        new TableIndex({
          name: `IDX_USER_${field.toUpperCase()}`,
          columnNames: [field]
        })
      );
    }

    await queryRunner.addColumn(
      this.tableName,
      new TableColumn({
        name: 'roleId',
        type: 'int'
      })
    );

    await queryRunner.createForeignKey(
      this.tableName,
      new TableForeignKey({
        columnNames: ['roleId'],
        referencedColumnNames: ['id'],
        referencedTableName: 'role',
        onDelete: 'CASCADE'
      })
    );
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    const table = await queryRunner.getTable(this.tableName);

    const foreignKey = await table.foreignKeys.find(
      (fk) => fk.columnNames.indexOf('roleId') !== -1
    );
    await queryRunner.dropForeignKey(this.tableName, foreignKey);
    await queryRunner.dropColumn(this.tableName, 'roleId');

    for (const field of this.indexFields) {
      const index = `IDX_USER_${field.toUpperCase()}`;
      const keyIndex = await table.indices.find(
        (fk) => fk.name.indexOf(index) !== -1
      );
      await queryRunner.dropIndex(this.tableName, keyIndex);
    }
    await queryRunner.dropTable(this.tableName);
  }
}