//! `issue <number> [repo]` — print key fields of an issue as JSON.

use anyhow::Result;
use clap::Args as ClapArgs;
use serde_json::{Value, json};

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

#[derive(ClapArgs)]
pub struct Args {
    /// Issue number.
    number: u64,
    /// Repo override.
    repo: Option<String>,
}

pub fn run(client: &Client, args: Args) -> Result<()> {
    let repo = client.repo(args.repo.as_deref());
    let v = client.get_json(&format!("/repos/{repo}/issues/{}", args.number))?;
    let trimmed = json!({
        "number": v.get("number"),
        "title": v.get("title"),
        "state": v.get("state"),
        "user": v.get("user").and_then(|u| u.get("login")),
        "assignees": v.get("assignees")
            .and_then(Value::as_array)
            .map(|a| a.iter().filter_map(|x| x.get("login")).cloned().collect::<Vec<_>>())
            .unwrap_or_default(),
        "labels": v.get("labels")
            .and_then(Value::as_array)
            .map(|a| a.iter().filter_map(|x| x.get("name")).cloned().collect::<Vec<_>>())
            .unwrap_or_default(),
        "body": v.get("body"),
    });
    print_json(&trimmed)
}