fields

type ArrayTransformer struct {
	// contains filtered or unexported fields
}

type BaseFieldExtractor struct {
	// contains filtered or unexported fields
}

type CategoryExtractor struct {
	BaseFieldExtractor
	// contains filtered or unexported fields
}

type CategoryField struct {
	Primary    string   `json:"primary"`
	Secondary  []string `json:"secondary,omitempty"`
	Confidence float64  `json:"confidence"`
}

type ChainTransformer struct {
	// contains filtered or unexported fields
}

type DateTransformer struct {
	// contains filtered or unexported fields
}

type EntityField struct {
	Text       string  `json:"text"`
	Type       string  `json:"type"` // "PERSON", "ORGANIZATION", "LOCATION", etc.
	Confidence float64 `json:"confidence"`
	StartPos   int     `json:"start_pos"`
	EndPos     int     `json:"end_pos"`
	URL        string  `json:"url,omitempty"` // Knowledge base URL if available
}

type ExtendedFieldType string

type FieldExtractor interface {
	Extract(data interface{}) interface{}
	Type() ExtendedFieldType
	Name() string
	Confidence() float64
}

type FieldTransformer interface {
	Transform(value interface{}) interface{}
	TargetType() string
}

type JSONTransformer struct {
	// contains filtered or unexported fields
}

type KeywordField struct {
	Term      string  `json:"term"`
	Frequency int     `json:"frequency"`
	Weight    float64 `json:"weight"`
	Position  string  `json:"position"` // "title", "content", "meta"
	TFIDF     float64 `json:"tf_idf"`
}

type LanguageField struct {
	Code       string  `json:"code"` // ISO 639-1 code (e.g., "en", "fr")
	Name       string  `json:"name"` // Full language name
	Confidence float64 `json:"confidence"`
	Script     string  `json:"script,omitempty"` // Writing script (Latin, Cyrillic, etc.)
}

type ReadingTimeField struct {
	Minutes    int     `json:"minutes"`
	Seconds    int     `json:"seconds"`
	WordCount  int     `json:"word_count"`
	ReadingWPM int     `json:"reading_wpm"` // Words per minute
	Confidence float64 `json:"confidence"`
}

type RelatedArticle struct {
	Title       string     `json:"title"`
	URL         string     `json:"url"`
	Excerpt     string     `json:"excerpt,omitempty"`
	PublishDate *time.Time `json:"publish_date,omitempty"`
	Similarity  float64    `json:"similarity"`
	Source      string     `json:"source"` // "internal", "external", "suggested"
}

type RelatedArticlesExtractor struct {
	BaseFieldExtractor
}

type SentimentField struct {
	Score      float64 `json:"score"`     // -1.0 to 1.0
	Label      string  `json:"label"`     // "positive", "negative", "neutral"
	Magnitude  float64 `json:"magnitude"` // 0.0 to 1.0
	Confidence float64 `json:"confidence"`
}

type StringTransformer struct{}

type TagField struct {
	Name       string  `json:"name"`
	Weight     float64 `json:"weight"`
	Source     string  `json:"source"` // "extracted", "meta", "content"
	Normalized string  `json:"normalized"`
}

type TagsExtractor struct {
	BaseFieldExtractor
	// contains filtered or unexported fields
}

type URLTransformer struct {
	// contains filtered or unexported fields
}