//! MemoServ delivers short messages ("memos") to registered accounts whether or
//! not they are online — they read them next time they identify. Memos are typed
//! and event-logged on the account, so they persist and federate like any other
//! account data. `lib.rs` holds the dispatcher; each command lives in its own
//! file, matching NickServ/ChanServ.

use fedserv_api::{NetView, Sender, Service, ServiceCtx, Store};

#[path = "send.rs"]
mod send;
#[path = "list.rs"]
mod list;
#[path = "read.rs"]
mod read;
#[path = "del.rs"]
mod del;

pub struct MemoServ {
    pub uid: String,
}

impl Service for MemoServ {
    fn nick(&self) -> &str {
        "MemoServ"
    }
    fn uid(&self) -> &str {
        &self.uid
    }
    fn gecos(&self) -> &str {
        "Memo Services"
    }

    fn on_command(&mut self, from: &Sender, args: &[&str], ctx: &mut ServiceCtx, _net: &dyn NetView, db: &mut dyn Store) {
        let me = self.uid.as_str();
        let cmd = args.first().map(|s| s.to_ascii_uppercase());
        if matches!(cmd.as_deref(), Some("HELP") | None) {
            ctx.notice(me, from.uid, "MemoServ delivers messages to registered users, online or not. Commands: \x02SEND\x02 <nick> <text>, \x02LIST\x02, \x02READ\x02 <num>|NEW|ALL, \x02DEL\x02 <num>|ALL.");
            return;
        }
        // Everything else needs you to be identified (memos are per-account).
        let Some(account) = from.account else {
            ctx.notice(me, from.uid, "You must identify to NickServ before using MemoServ.");
            return;
        };
        match cmd.as_deref() {
            Some("SEND") => send::handle(me, from, account, args, ctx, db),
            Some("LIST") => list::handle(me, from, account, ctx, db),
            Some("READ") => read::handle(me, from, account, args, ctx, db),
            Some("DEL") | Some("DELETE") => del::handle(me, from, account, args, ctx, db),
            Some(other) => ctx.notice(me, from.uid, format!("I don't know the command \x02{other}\x02. Try \x02HELP\x02.")),
            None => {}
        }
    }
}