state

type ChunkRow struct {
	URL    string
	Dest   string
	Index  int
	Start  int64
	End    int64
	Size   int64
	SHA256 string
	Status string // pending | running | complete | dirty
}

type DB struct {
	SQL  *sql.DB
	Path string
	// contains filtered or unexported fields
}

type DownloadRow struct {
	URL            string
	Dest           string
	ExpectedSHA256 string
	ActualSHA256   string
	ETag           string
	LastModified   string
	Size           int64
	Status         string
	Retries        int64
	CreatedAt      int64
	UpdatedAt      int64
	LastError      string
}

type HostCaps struct {
	Host         string
	HeadOK       bool
	AcceptRanges bool
}

type MetadataFilters struct {
	Source    string   // Filter by source: "huggingface", "civitai", etc.
	ModelType string   // Filter by type: "LLM", "LoRA", "Checkpoint", etc.
	Favorite  bool     // Show only favorites
	MinRating int      // Minimum user rating (1-5)
	Tags      []string // Filter by tags
	OrderBy   string   // "last_used", "name", "size", "rating", "created_at"
	Limit     int      // Limit results
}

type ModelMetadata struct {
	ID int64 `json:"id"`

	// Link to downloads table
	DownloadURL string `json:"download_url"`
	Dest        string `json:"dest,omitempty"` // Destination file path

	// Basic model info
	ModelName string `json:"model_name,omitempty"`
	ModelID   string `json:"model_id,omitempty"` // e.g., "TheBloke/Llama-2-7B-GGUF"
	Version   string `json:"version,omitempty"`  // e.g., "Q4_K_M", "fp16"
	Source    string `json:"source,omitempty"`   // "huggingface", "civitai", "direct"

	// Metadata
	Description string   `json:"description,omitempty"`
	Author      string   `json:"author,omitempty"`
	AuthorURL   string   `json:"author_url,omitempty"`
	License     string   `json:"license,omitempty"`
	Tags        []string `json:"tags,omitempty"`

	// Model specs
	ModelType      string `json:"model_type,omitempty"`      // "LLM", "LoRA", "Checkpoint", "VAE", "Embedding"
	BaseModel      string `json:"base_model,omitempty"`      // "llama-2", "sdxl", etc.
	Architecture   string `json:"architecture,omitempty"`    // "transformer", "unet", etc.
	ParameterCount string `json:"parameter_count,omitempty"` // "7B", "13B", "70B"
	Quantization   string `json:"quantization,omitempty"`    // "Q4_K_M", "Q5_K_S", "fp16"

	// File info
	FileSize   int64  `json:"file_size,omitempty"`
	FileFormat string `json:"file_format,omitempty"` // "gguf", "safetensors", "ckpt", "bin"

	// Usage stats
	DownloadCount int        `json:"download_count"`
	LastUsed      *time.Time `json:"last_used,omitempty"`
	TimesUsed     int        `json:"times_used"`

	// External links
	HomepageURL      string `json:"homepage_url,omitempty"`
	RepoURL          string `json:"repo_url,omitempty"`
	DocumentationURL string `json:"documentation_url,omitempty"`
	ThumbnailURL     string `json:"thumbnail_url,omitempty"`

	// Timestamps
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`

	// User data
	UserNotes  string `json:"user_notes,omitempty"`
	UserRating int    `json:"user_rating,omitempty"` // 1-5 stars
	Favorite   bool   `json:"favorite"`
}