const config = require('../../config');
const providers = config.providers;
const crypto = require('crypto');
const bcrypt = require('bcrypt');
const moment = require('moment');

module.exports = function(sequelize, DataTypes) {
  const notifications = sequelize.define(
    'notifications',
    {
      id: {
        type: DataTypes.UUID,
        defaultValue: DataTypes.UUIDV4,
        primaryKey: true,
      },

notification_type: {
        type: DataTypes.ENUM,
      
      

        values: [

"announcement",


"homework_assigned",


"homework_due",


"submission_received",


"grade_posted",


"account_approval",


"system",


"security"

        ],

      },

title: {
        type: DataTypes.TEXT,
      
      

      },

message: {
        type: DataTypes.TEXT,
      
      

      },

is_read: {
        type: DataTypes.BOOLEAN,
      
        allowNull: false,
        defaultValue: false,
      
      

      },

read_at: {
        type: DataTypes.DATE,
      
      

      },

sent_at: {
        type: DataTypes.DATE,
      
      

      },

priority: {
        type: DataTypes.ENUM,
      
      

        values: [

"low",


"normal",


"high",


"urgent"

        ],

      },

      importHash: {
        type: DataTypes.STRING(255),
        allowNull: true,
        unique: true,
      },
    },
    {
      timestamps: true,
      paranoid: true,
      freezeTableName: true,
    },
  );

  notifications.associate = (db) => {


/// loop through entities and it's fields, and if ref === current e[name] and create relation has many on parent entity































//end loop



    db.notifications.belongsTo(db.users, {
      as: 'recipient',
      foreignKey: {
        name: 'recipientId',
      },
      constraints: false,
    });

    db.notifications.belongsTo(db.announcements, {
      as: 'announcement',
      foreignKey: {
        name: 'announcementId',
      },
      constraints: false,
    });

    db.notifications.belongsTo(db.homeworks, {
      as: 'homework',
      foreignKey: {
        name: 'homeworkId',
      },
      constraints: false,
    });

    db.notifications.belongsTo(db.homework_submissions, {
      as: 'submission',
      foreignKey: {
        name: 'submissionId',
      },
      constraints: false,
    });

    db.notifications.belongsTo(db.users, {
      as: 'sent_by',
      foreignKey: {
        name: 'sent_byId',
      },
      constraints: false,
    });

    db.notifications.belongsTo(db.schools, {
      as: 'schools',
      foreignKey: {
        name: 'schoolsId',
      },
      constraints: false,
    });




    db.notifications.belongsTo(db.users, {
      as: 'createdBy',
    });

    db.notifications.belongsTo(db.users, {
      as: 'updatedBy',
    });
  };



  return notifications;
};


