//! The seeded random tree `tests/generated.rs` checks, drawn so it can be
//! looked at. `IRIS_SEED` and `IRIS_DEPTH` choose which one.

use iris::prelude::*;
use iris::random::Edits;

fn env(name: &str, fallback: u64) -> u64 {
    std::env::var(name)
        .ok()
        .and_then(|v| v.parse().ok())
        .unwrap_or(fallback)
}

fn main() {
    DefaultApp::<State>::run();
}

#[derive(DefaultUiState)]
struct State {
    ui_state: DefaultUiState,
}

impl DefaultAppState for State {
    fn new(mut ui_state: DefaultUiState, rsc: &mut DefaultRsc<Self>, _: Proxy<Self>) -> Self {
        let seed = env("IRIS_SEED", 1);
        let depth = env("IRIS_DEPTH", 4) as usize;
        let (root, _) = iris::random::grow(rsc, seed, depth, &Edits::default());
        ui_state.set_root(root);
        Self { ui_state }
    }
}