const { DataTypes } = require('sequelize');
const { sequelize } = require('../config/database');

const UserAssignment = sequelize.define('user_assignments', {
  id: { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV4, primaryKey: true },
  user_id: { type: DataTypes.UUID, allowNull: false, references: { model: 'users_auth', key: 'id' } },
  role_id: { type: DataTypes.UUID, allowNull: false, references: { model: 'roles', key: 'id' } },
  school_id: { type: DataTypes.UUID, references: { model: 'schools', key: 'id' } },
  class_id: { type: DataTypes.UUID, references: { model: 'classes', key: 'id' } },
  is_primary: { type: DataTypes.BOOLEAN, defaultValue: false, comment: 'Vai trò chính' },
  valid_from: { type: DataTypes.DATE },
  valid_until: { type: DataTypes.DATE },
  is_active: { type: DataTypes.BOOLEAN, defaultValue: true },
  created_at: { type: DataTypes.DATE, allowNull: false, defaultValue: DataTypes.NOW },
  updated_at: { type: DataTypes.DATE, allowNull: false, defaultValue: DataTypes.NOW },
}, {
  tableName: 'user_assignments',
  timestamps: true,
  underscored: true,
  indexes: [
    { fields: ['user_id', 'role_id', 'school_id'] },
    { fields: ['school_id'] },
    { fields: ['is_active'] },
  ],
});

module.exports = UserAssignment;