NotAShelf
185e3b562a
Signed-off-by: NotAShelf <raf@notashelf.dev> Change-Id: Ia01590cdeed872cc8ebd16f6ca95f3cc6a6a6964
68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
pub mod audio;
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pub mod document;
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pub mod image;
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pub mod markdown;
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pub mod video;
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use std::{collections::HashMap, path::Path};
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use crate::{error::Result, media_type::MediaType, model::BookMetadata};
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#[derive(Debug, Clone, Default)]
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pub struct ExtractedMetadata {
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pub title: Option<String>,
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pub artist: Option<String>,
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pub album: Option<String>,
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pub genre: Option<String>,
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pub year: Option<i32>,
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pub duration_secs: Option<f64>,
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pub description: Option<String>,
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pub extra: HashMap<String, String>,
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pub book_metadata: Option<BookMetadata>,
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// Photo-specific metadata
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pub date_taken: Option<chrono::DateTime<chrono::Utc>>,
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pub latitude: Option<f64>,
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pub longitude: Option<f64>,
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pub camera_make: Option<String>,
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pub camera_model: Option<String>,
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pub rating: Option<i32>,
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}
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pub trait MetadataExtractor: Send + Sync {
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/// Extract metadata from a file at the given path.
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///
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/// # Errors
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///
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/// Returns an error if the file cannot be read or parsed.
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fn extract(&self, path: &Path) -> Result<ExtractedMetadata>;
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fn supported_types(&self) -> Vec<MediaType>;
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}
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/// Extract metadata from a file using the appropriate extractor for the given
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/// media type.
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///
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/// # Errors
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///
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/// Returns an error if no extractor supports the media type, or if extraction
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/// fails.
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pub fn extract_metadata(
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path: &Path,
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media_type: &MediaType,
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) -> Result<ExtractedMetadata> {
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let extractors: Vec<Box<dyn MetadataExtractor>> = vec![
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Box::new(audio::AudioExtractor),
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Box::new(document::DocumentExtractor),
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Box::new(video::VideoExtractor),
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Box::new(markdown::MarkdownExtractor),
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Box::new(image::ImageExtractor),
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];
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for extractor in &extractors {
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if extractor.supported_types().contains(media_type) {
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return extractor.extract(path);
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}
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}
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Ok(ExtractedMetadata::default())
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}
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