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

const Permission = sequelize.define('permissions', {
  id: { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV4, primaryKey: true },
  permission_code: { type: DataTypes.STRING(50), unique: true, allowNull: false },
  permission_name: { type: DataTypes.STRING(100), allowNull: false },
  permission_description: { type: DataTypes.TEXT },
  resource: { type: DataTypes.STRING(50), comment: 'Tài nguyên (students, grades, etc.)' },
  action: { type: DataTypes.STRING(50), comment: 'Hành động (view, create, edit, delete)' },
  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: 'permissions',
  timestamps: true,
  underscored: true,
  indexes: [
    { fields: ['permission_code'], unique: true },
    { fields: ['resource', 'action'] },
  ],
});

module.exports = Permission;