Struct CacheManager 

pub struct CacheManager { /* private fields */ }

Manages translation caching using a SQLite database.

The cache stores translations keyed by source text, target language, model, endpoint, and prompt hash to avoid redundant API calls.

Example

use tl_cli::cache::CacheManager;
use tl_cli::translation::TranslationRequest;

let cache = CacheManager::new().unwrap();
let request = TranslationRequest {
    source_text: "Hello".to_string(),
    target_language: "ja".to_string(),
    model: "gpt-4".to_string(),
    endpoint: "https://api.openai.com".to_string(),
};

// Check cache
if let Some(cached) = cache.get(&request).unwrap() {
    println!("Cached: {}", cached);
}

Implementations

impl CacheManager

pub fn new() -> Result<Self>

Creates a new cache manager.

Initializes the SQLite database at ~/.cache/tl/translations.db.

pub fn get(&self, request: &TranslationRequest) -> Result<Option<String>>

Retrieves a cached translation if available.

Returns None if no cached translation exists for the request. Updates the accessed_at timestamp on cache hit.

pub fn put( &self, request: &TranslationRequest, translated_text: &str, ) -> Result<()>

Stores a translation in the cache.

If a translation with the same cache key already exists, it is replaced.