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

name: {
        type: DataTypes.TEXT,
      
      

      },

exam_type: {
        type: DataTypes.ENUM,
      
      

        values: [

"monthly",


"midterm",


"final",


"national_grade_8",


"national_grade_10",


"national_grade_12"

        ],

      },

starts_at: {
        type: DataTypes.DATE,
      
      

      },

ends_at: {
        type: DataTypes.DATE,
      
      

      },

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

      },

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

  exams.associate = (db) => {


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























    db.exams.hasMany(db.exam_results, {
      as: 'exam_results_exam',
      foreignKey: {
          name: 'examId',
      },
      constraints: false,
    });













    db.exams.hasMany(db.exam_performance_summaries, {
      as: 'exam_performance_summaries_exam',
      foreignKey: {
          name: 'examId',
      },
      constraints: false,
    });


    db.exams.hasMany(db.top_student_features, {
      as: 'top_student_features_exam',
      foreignKey: {
          name: 'examId',
      },
      constraints: false,
    });



//end loop



    db.exams.belongsTo(db.school_years, {
      as: 'school_year',
      foreignKey: {
        name: 'school_yearId',
      },
      constraints: false,
    });

    db.exams.belongsTo(db.terms, {
      as: 'term',
      foreignKey: {
        name: 'termId',
      },
      constraints: false,
    });

    db.exams.belongsTo(db.grades, {
      as: 'grade',
      foreignKey: {
        name: 'gradeId',
      },
      constraints: false,
    });

    db.exams.belongsTo(db.streams, {
      as: 'stream',
      foreignKey: {
        name: 'streamId',
      },
      constraints: false,
    });




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

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



  return exams;
};