//! Independent check of "DIFFICULTY is a dialog: GP_DIALOG entries 2/3".
//!
//! The Decoder identified `DLG_SELECT_DIFFICULTY` as `GP_DIALOG.pak` entries 2/3
//! by three routes, one of which is button count and geometry. That half is
//! readable from the disc with this port's own reader, so it is checked here
//! rather than taken on their word — the same form as re-deriving `ptbtn11`'s
//! row order from my export when they offered it.
//!
//! ⚠️ What this CANNOT check is their binding claim, and they flagged it first:
//! entries 2/3 are identified by button count and geometry, **not** by a binding
//! from the `DLG_` name to a pak entry. Another four-button dialog with the same
//! rows would be indistinguishable by this evidence. Reproducing the geometry
//! confirms the geometry; it does not name the screen.
use sylpheed_formats::{pak, ratc, ui_layout};

fn main() {
    let root = std::env::var("SYLPHEED_DISC").unwrap_or_else(|_| "/disc".into());
    let path = format!("{root}/dat/GP_DIALOG.pak");
    let ar = pak::PakArchive::open(&path).expect("GP_DIALOG.pak");
    for (i, e) in ar.entries().iter().enumerate() {
        let Ok(by) = ar.read(e) else { continue };
        if !ratc::is_ratc(&by) { continue }
        let Some(b) = ui_layout::parse_build(&by) else { continue };
        let mut rows: Vec<(String, i32)> = b.elements.iter()
            .filter(|el| el.name.starts_with("pcbtn"))
            .filter_map(|el| el.rest().map(|r| (el.name.clone(), r.y)))
            .collect();
        if rows.is_empty() { continue }
        rows.sort_by(|a, b| a.1.cmp(&b.1));
        let ys: Vec<i32> = rows.iter().map(|r| r.1).collect();
        let gaps: Vec<i32> = ys.windows(2).map(|w| w[1] - w[0]).collect();
        println!("  entry {i:>2}  {} button record(s): {}", rows.len(),
                 rows.iter().map(|r| r.0.as_str()).collect::<Vec<_>>().join(" "));
        println!("            rows {ys:?}  gaps {gaps:?}");
    }
}