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 class_groups = sequelize.define(
    'class_groups',
    {
      id: {
        type: DataTypes.UUID,
        defaultValue: DataTypes.UUIDV4,
        primaryKey: true,
      },

class_name: {
        type: DataTypes.TEXT,
      
      

      },

grade_level: {
        type: DataTypes.TEXT,
      
      

      },

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

  class_groups.associate = (db) => {


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









    db.class_groups.hasMany(db.enrollments, {
      as: 'enrollments_class_group',
      foreignKey: {
          name: 'class_groupId',
      },
      constraints: false,
    });


    db.class_groups.hasMany(db.teacher_assignments, {
      as: 'teacher_assignments_class_group',
      foreignKey: {
          name: 'class_groupId',
      },
      constraints: false,
    });






    db.class_groups.hasMany(db.exams, {
      as: 'exams_class_group',
      foreignKey: {
          name: 'class_groupId',
      },
      constraints: false,
    });









//end loop



    db.class_groups.belongsTo(db.schools, {
      as: 'school',
      foreignKey: {
        name: 'schoolId',
      },
      constraints: false,
    });

    db.class_groups.belongsTo(db.academic_years, {
      as: 'academic_year',
      foreignKey: {
        name: 'academic_yearId',
      },
      constraints: false,
    });

    db.class_groups.belongsTo(db.users, {
      as: 'homeroom_teacher',
      foreignKey: {
        name: 'homeroom_teacherId',
      },
      constraints: false,
    });




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

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



  return class_groups;
};