#![allow(dead_code)] // Shared with oxy: not every helper is used yet.
//! Tiny JSON building for `--json` outputs: one document on stdout,
//! nothing else, with string escaping shared with the hooks payloads.

pub use oxy_core::repo::{json_array as arr, json_str as s};

pub fn obj<I: IntoIterator<Item = (&'static str, String)>>(pairs: I) -> String {
    let inner: Vec<String> = pairs.into_iter().map(|(k, v)| format!("{}:{v}", s(k))).collect();
    format!("{{{}}}", inner.join(","))
}
pub fn b(v: bool) -> String {
    v.to_string()
}
pub fn n<T: std::fmt::Display>(v: T) -> String {
    v.to_string()
}
pub fn opt<T>(v: Option<T>, f: impl Fn(T) -> String) -> String {
    match v {
        Some(x) => f(x),
        None => "null".into(),
    }
}
pub fn hashes(v: &[oxy_core::hash::ChangeHash]) -> String {
    arr(v.iter().map(|h| s(&h.to_hex())))
}