//! `subscription [--watch|--ignore|--unwatch] [repo]` — get or set
//! the current user's watch subscription for a repo.

use anyhow::Result;
use clap::Args as ClapArgs;
use serde_json::json;

use crate::client::Client;
use crate::verbs::print_json;

#[derive(ClapArgs)]
pub struct Args {
    /// Subscribe (watch the repo).
    #[arg(long, group = "action")]
    watch: bool,
    /// Mute (mark ignored).
    #[arg(long, group = "action")]
    ignore: bool,
    /// Unsubscribe (clear watch + ignore).
    #[arg(long, group = "action")]
    unwatch: bool,
}

pub fn run(client: &Client, args: Args) -> Result<()> {
    let repo = client.repo();
    if args.unwatch {
        client.delete(&format!("/repos/{repo}/subscription"), None)?;
        println!("unsubscribed");
        return Ok(());
    }
    if args.watch || args.ignore {
        let (subscribed, ignored) = if args.ignore {
            (false, true)
        } else {
            (true, false)
        };
        // Forgejo requires PUT (not POST) for this endpoint.
        let resp = client.put_json(
            &format!("/repos/{repo}/subscription"),
            &json!({ "subscribed": subscribed, "ignored": ignored }),
        )?;
        return print_json(&json!({
            "subscribed": resp.get("subscribed"),
            "ignored": resp.get("ignored"),
        }));
    }
    // Forgejo returns 404 when the current user is not watching the repo
    // (rather than a response with subscribed=false).
    match client.get_json_optional(&format!("/repos/{repo}/subscription"))? {
        Some(resp) => print_json(&json!({
            "subscribed": resp.get("subscribed"),
            "ignored": resp.get("ignored"),
        })),
        None => print_json(&json!({ "subscribed": false, "ignored": false })),
    }
}