/* Copyright (C) 2019, 2020, 2021, 2022, 2023, 2024, 2025 Dnote contributors
 *
 * This file is part of Dnote.
 *
 * Dnote is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Dnote is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Dnote.  If not, see <https://www.gnu.org/licenses/>.
 */

package database

import (
	"time"
)

// Model is the base model definition
type Model struct {
	ID        int       `gorm:"primaryKey" json:"-"`
	CreatedAt time.Time `json:"created_at" gorm:"autoCreateTime"`
	UpdatedAt time.Time `json:"updated_at" gorm:"autoUpdateTime"`
}

// Book is a model for a book
type Book struct {
	Model
	UUID      string `json:"uuid" gorm:"uniqueIndex;type:text"`
	UserID    int    `json:"user_id" gorm:"index"`
	Label     string `json:"label" gorm:"index"`
	Notes     []Note `json:"notes" gorm:"foreignKey:BookUUID;references:UUID"`
	AddedOn   int64  `json:"added_on"`
	EditedOn  int64  `json:"edited_on"`
	USN       int    `json:"-" gorm:"index"`
	Deleted   bool   `json:"-" gorm:"default:false"`
}

// Note is a model for a note
type Note struct {
	Model
	UUID      string `json:"uuid" gorm:"index;type:text"`
	Book      Book   `json:"book" gorm:"foreignKey:BookUUID;references:UUID"`
	User      User   `json:"user"`
	UserID    int    `json:"user_id" gorm:"index"`
	BookUUID  string `json:"book_uuid" gorm:"index;type:text"`
	Body      string `json:"content"`
	AddedOn   int64  `json:"added_on"`
	EditedOn  int64  `json:"edited_on"`
	USN       int    `json:"-" gorm:"index"`
	Deleted   bool   `json:"-" gorm:"default:false"`
	Client    string `gorm:"index"`
}

// User is a model for a user
type User struct {
	Model
	UUID        string     `json:"uuid" gorm:"type:text;index"`
	Email       NullString `gorm:"index"`
	Password    NullString `json:"-"`
	LastLoginAt *time.Time `json:"-"`
	MaxUSN      int        `json:"-" gorm:"default:0"`
}

// Token is a model for a token
type Token struct {
	Model
	UserID int    `gorm:"index"`
	Value  string `gorm:"index"`
	Type   string
	UsedAt *time.Time
}

// Session represents a user session
type Session struct {
	Model
	UserID     int    `gorm:"index"`
	Key        string `gorm:"index"`
	LastUsedAt time.Time
	ExpiresAt  time.Time
}