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

title_om: {
        type: DataTypes.TEXT,
      
      

      },

title_am: {
        type: DataTypes.TEXT,
      
      

      },

title_en: {
        type: DataTypes.TEXT,
      
      

      },

material_type: {
        type: DataTypes.ENUM,
      
      

        values: [

"past_exam_paper",


"revision_notes",


"practice_questions",


"reference_list",


"video_link",


"other"

        ],

      },

description: {
        type: DataTypes.TEXT,
      
      

      },

external_url: {
        type: DataTypes.TEXT,
      
      

      },

visibility: {
        type: DataTypes.ENUM,
      
      

        values: [

"public",


"students_only"

        ],

      },

published_at: {
        type: DataTypes.DATE,
      
      

      },

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

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

    db.study_materials.belongsTo(db.subjects, {
      as: 'subject',
      foreignKey: {
        name: 'subjectId',
      },
      constraints: false,
    });

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

    db.study_materials.belongsTo(db.staff_members, {
      as: 'uploaded_by',
      foreignKey: {
        name: 'uploaded_byId',
      },
      constraints: false,
    });



    db.study_materials.hasMany(db.file, {
      as: 'file',
      foreignKey: 'belongsToId',
      constraints: false,
      scope: {
        belongsTo: db.study_materials.getTableName(),
        belongsToColumn: 'file',
      },
    });


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

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



  return study_materials;
};