use crate::model::Article;

pub struct Cache {
    pub articles: Vec<Article>,
    pub selected_id: String,
}

pub fn save(articles: &[Article], selected_id: &str) {
    let dir = glib::user_data_dir().join("net.jeena.FeedTheMonkey");
    std::fs::create_dir_all(&dir).ok();
    let data = serde_json::json!({
        "articles": articles,
        "selected_id": selected_id,
    });
    if let Ok(s) = serde_json::to_string(&data) {
        std::fs::write(dir.join("cache.json"), s).ok();
    }
}

pub fn load() -> Option<Cache> {
    let path = glib::user_data_dir()
        .join("net.jeena.FeedTheMonkey")
        .join("cache.json");
    let data = std::fs::read_to_string(path).ok()?;
    let json: serde_json::Value = serde_json::from_str(&data).ok()?;
    let articles: Vec<Article> = serde_json::from_value(json["articles"].clone()).ok()?;
    let selected_id = json["selected_id"].as_str().unwrap_or("").to_string();
    Some(Cache { articles, selected_id })
}