package models

import "time"

// ChunkedUpload tracks a multi-part upload session. Chunks are stored as
// individual files and merged when the client calls the complete endpoint.
type ChunkedUpload struct {
	ID             string    `gorm:"type:uuid;primaryKey;default:gen_random_uuid()" json:"id"`
	SessionID      string    `gorm:"type:uuid;not null;index" json:"sessionId"`
	UserID         string    `gorm:"type:uuid;not null;index" json:"userId"`
	ClientID       string    `gorm:"size:120" json:"clientId"`
	Kind           string    `gorm:"size:20;not null" json:"kind"`
	FileName       string    `gorm:"size:255;not null" json:"fileName"`
	MIMEType       string    `gorm:"size:120" json:"mimeType"`
	TotalSize      int64     `gorm:"not null" json:"totalSize"`
	ChunkSize      int       `gorm:"not null" json:"chunkSize"`
	TotalChunks    int       `gorm:"not null" json:"totalChunks"`
	UploadedChunks int       `gorm:"default:0" json:"uploadedChunks"`
	StorageDir     string    `gorm:"size:1000;not null" json:"-"`
	Status         string    `gorm:"size:20;default:'pending'" json:"status"` // pending, completed, expired
	CreatedAt      time.Time `gorm:"autoCreateTime" json:"createdAt"`
	ExpiresAt      time.Time `gorm:"not null" json:"expiresAt"`
}