18F/federalist

module.exports = (sequelize, DataTypes) => {
  const types = {
    ERROR: 'error',
    AUDIT: 'audit',
  };

  const labels = {
    AUTHENTICATION: 'authentication',
    AUTHENTICATION_NETLIFY_CMS: 'authentication-netlify-cms',
    AUTHENTICATION_PAGES_GH_TOKEN: 'authentication-pages-github-token',
    FEDERALIST_USERS_MEMBERSHIP: 'federalist-users-membership',
    BUILD_STATUS: 'build-status',
    ADMIN: 'admin',
    SOCKET_IO: 'socket.io',
    SITE_USER: 'site-user',
    REQUEST_HANDLER: 'request-handler',
    USER_ACTION: 'user-action',
    ADMIN_ACTION: 'admin-action',
    TOKEN_ACTION: 'token-action',
  };

  function isValidType(value) {
    if (!Object.values(types).includes(value)) {
      throw new Error(`Invalid event type: ${value}`);
    }
  }

  function isValidLabel(value) {
    if (!Object.values(labels).includes(value)) {
      throw new Error(`Invalid event label: ${value}`);
    }
  }

  function isValidModel(value) {
    if (!Object.keys(sequelize.models).includes(value)) {
      throw new Error(`Invalid event model: ${value}`);
    }
  }

  const associate = () => {};

  const Event = sequelize.define('Event', {
    type: {
      type: DataTypes.STRING,
      allowNull: false,
      validate: {
        isValidType,
      },
    },
    label: {
      type: DataTypes.STRING,
      allowNull: false,
      validate: {
        isValidLabel,
      },
    },
    modelId: {
      type: DataTypes.INTEGER,
    },
    model: {
      type: DataTypes.STRING,
      validate: {
        isValidModel,
      },
    },
    body: {
      type: DataTypes.JSONB,
      defaultValue: {},
    },
  }, {
    tableName: 'event',
    timestamps: true,
    updatedAt: false,
  });

  Event.associate = associate;
  Event.labels = labels;
  Event.types = types;
  return Event;
};