'use strict';

module.exports = {
  up: function (queryInterface, Sequelize) {
    queryInterface.createTable('revisions', {
      id: {
        type: 'UUID',
        allowNull: false,
        primaryKey: true
      },
      title:
       { type: 'CHARACTER VARYING',
         allowNull: false,
      },
      text:
       { type: 'TEXT',
         allowNull: true,
      },
      html:
       { type: 'TEXT',
         allowNull: true,
      },
      preview:
       { type: 'TEXT',
         allowNull: true,
      },
      createdAt:
       { type: 'TIMESTAMP WITH TIME ZONE',
         allowNull: false,
      },
      updatedAt:
       { type: 'TIMESTAMP WITH TIME ZONE',
         allowNull: false,
      },
      userId: {
        type: 'UUID',
        allowNull: false,
        references: {
          model: 'users',
        }
      },
      documentId: {
        type: 'UUID',
        allowNull: false,
        references: {
          model: 'documents',
          onDelete: 'CASCADE',
        }
      },
    });

    queryInterface.addColumn(
      'documents',
      'lastModifiedById',
      {
        type: 'UUID',
        allowNull: false,
        references: {
          model: 'users',
        }
      }
    );

    queryInterface.addColumn(
      'documents',
      'revisionCount',
      {
        type: 'INTEGER',
        defaultValue: 0
      }
    );
  },

  down: function (queryInterface, Sequelize) {
    queryInterface.dropTable('revisions');

    queryInterface.removeColumn('documents', 'lastModifiedById');
    queryInterface.removeColumn('documents', 'revisionCount');
  }
};