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

const CalendarToken = sequelize.define('CalendarToken', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true
  },
  user_id: {
    type: DataTypes.INTEGER,
    allowNull: false,
    references: {
      model: 'Users',
      key: 'id'
    },
    onDelete: 'CASCADE'
  },
  provider: {
    type: DataTypes.STRING,
    allowNull: false,
    defaultValue: 'google'
  },
  access_token: {
    type: DataTypes.TEXT,
    allowNull: false
  },
  refresh_token: {
    type: DataTypes.TEXT,
    allowNull: true
  },
  token_type: {
    type: DataTypes.STRING,
    defaultValue: 'Bearer'
  },
  expires_at: {
    type: DataTypes.DATE,
    allowNull: true
  },
  scope: {
    type: DataTypes.TEXT,
    allowNull: true
  },
  connected_email: {
    type: DataTypes.STRING,
    allowNull: true
  },
  created_at: {
    type: DataTypes.DATE,
    defaultValue: DataTypes.NOW
  },
  updated_at: {
    type: DataTypes.DATE,
    defaultValue: DataTypes.NOW
  }
}, {
  tableName: 'calendar_tokens',
  timestamps: true,
  createdAt: 'created_at',
  updatedAt: 'updated_at',
  indexes: [
    {
      unique: true,
      fields: ['user_id', 'provider']
    }
  ]
});

// Associations
CalendarToken.associate = function(models) {
  CalendarToken.belongsTo(models.User, {
    foreignKey: 'user_id',
    as: 'user'
  });
};

module.exports = CalendarToken;