//! Version 2 adds a note count and fixes the crash command.
use sausage_actor::{json, messages, reply};

const DATA: &str = "/data/notes.json";

fn save(notes: &[String]) {
    std::fs::write(DATA, serde_json::to_string(notes).unwrap()).unwrap();
    std::fs::write("/public/notes.txt", notes.join("\n") + "\n").unwrap();
}

fn main() {
    let mut notes: Vec<String> = std::fs::read_to_string(DATA)
        .ok()
        .and_then(|text| serde_json::from_str(&text).ok())
        .unwrap_or_default();
    for message in messages() {
        let body = &message.body;
        let response = match message.kind() {
            "add" => {
                notes.push(body["text"].as_str().unwrap_or_default().to_string());
                save(&notes);
                json!({"type": "added", "count": notes.len()})
            }
            "list" => json!({"type": "notes", "items": notes}),
            "count" => json!({"type": "count", "count": notes.len(), "version": 2}),
            "crash" => json!({"type": "not_crashing", "version": 2}),
            _ => json!({"type": "error", "reason": "unknown message"}),
        };
        let _ = reply(&message, response);
    }
}