package models

import (
	"time"

	"github.com/google/uuid"
	"gorm.io/gorm"
)

// CloudFileVersion stores a version snapshot of a user file
type CloudFileVersion struct {
	ID         uuid.UUID `gorm:"type:uuid;primaryKey" json:"id"`
	FileID     uuid.UUID `gorm:"type:uuid;not null" json:"file_id"`
	Version    int       `gorm:"not null" json:"version"`
	StorageKey string    `gorm:"type:text;not null" json:"storage_key"`
	SizeBytes  int64     `gorm:"not null;default:0" json:"size_bytes"`
	CreatedAt  time.Time `gorm:"autoCreateTime" json:"created_at"`

	File *UserFile `gorm:"foreignKey:FileID;constraint:OnDelete:CASCADE" json:"-"`
}

func (CloudFileVersion) TableName() string {
	return "cloud_file_versions"
}

func (m *CloudFileVersion) BeforeCreate(tx *gorm.DB) error {
	if m.ID == uuid.Nil {
		m.ID = uuid.New()
	}
	return nil
}