//! Page-classification configuration.
//!
//! When `ExtractionConfig::page_classification` is `Some`, the page-classification
//! post-processor runs at the Middle stage and populates
//! [`ExtractedDocument::page_classifications`](crate::types::ExtractedDocument::page_classifications).
use serde::{Deserialize, Serialize};
/// Configuration for the page-classification post-processor.
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
#[cfg_attr(feature = "api", derive(utoipa::ToSchema))]
#[cfg_attr(feature = "alef-meta", alef(since = "5.0.0"))]
pub struct PageClassificationConfig {
/// Minijinja prompt template. Receives `{{ labels }}` (joined list), `{{ page_text }}`
/// and `{{ multi_label }}` variables. `None` lets the backend pick a sensible default.
#[serde(skip_serializing_if = "Option::is_none")]
pub prompt_template: Option<String>,
/// The set of labels the classifier may emit. Must contain at least one entry.
pub labels: Vec<String>,
/// Allow multiple labels per page. Single-label mode returns at most one label.
#[serde(default)]
pub multi_label: bool,
/// LLM configuration used for classification.
pub llm: super::llm::LlmConfig,
}