//! Which `GP_TITLE` elements does the resting-pose dwell fallback decide, and does
//! it hand back a visible pose? The disc-wide census says 5 fires / 4 visible here.
//!     cargo run -p sylpheed-formats --example rest_fallback_title
use std::path::PathBuf;
use sylpheed_formats::{pak::PakArchive, ui_layout};
fn main() {
    let root = PathBuf::from(std::env::var("SYLPHEED_DISC").expect("SYLPHEED_DISC"));
    let ar = PakArchive::open(root.join("dat/GP_TITLE.pak")).expect("GP_TITLE");
    for (i, e) in ar.entries().iter().enumerate() {
        let Ok(by) = ar.read(e) else { continue };
        let Some(b) = ui_layout::parse_build(&by) else {
            continue;
        };
        for el in &b.elements {
            if el.keyframes.len() < 2 {
                continue;
            }
            if el.keyframes.windows(2).any(|w| {
                w[0].x == w[1].x
                    && w[0].y == w[1].y
                    && w[0].scale_x == w[1].scale_x
                    && w[0].scale_y == w[1].scale_y
                    && w[0].fade == w[1].fade
            }) {
                continue;
            }
            let Some(r) = el.rest() else { continue };
            let a = (r.fade >> 24) & 0xff;
            let ks: Vec<String> = el
                .keyframes
                .iter()
                .map(|k| {
                    format!(
                        "{}:a{}",
                        k.time.map(|v| v.to_string()).unwrap_or("-".into()),
                        (k.fade >> 24) & 0xff
                    )
                })
                .collect();
            println!(
                "entry {i:2}  {:24} rest a={a:3} t={:?}   [{}]{}",
                el.name,
                r.time,
                ks.join(" "),
                if a > 0 { "   <== VISIBLE" } else { "" }
            );
        }
    }
}