// tauri::generate_context!() embeds `frontendDist` at compile time. Without
// rerun directives cargo does NOT rebuild the .so when frontend files change
// (observed: stale grid code survived a "successful" rebuild). Directory-level
// rerun-if-changed only tracks the dir mtime (add/remove/rename, NOT content
// edits), so list every file explicitly.
fn walk(p: &std::path::Path) {
    for e in std::fs::read_dir(p).unwrap() {
        let e = e.unwrap();
        let path = e.path();
        if path.is_dir() {
            walk(&path);
        } else {
            println!("cargo:rerun-if-changed={}", path.display());
        }
    }
}

fn main() {
    walk(std::path::Path::new("frontend/dist"));
    println!("cargo:rerun-if-changed=tauri.conf.json");

    // tauri_build::build() inspects the TARGET env var itself (build scripts
    // run on the HOST, so a cfg(target_os) gate would disable it). For
    // android targets it emits `cargo:rustc-cfg=mobile`, which is what
    // activates `#[cfg_attr(mobile, tauri::mobile_entry_point)]`.
    tauri_build::build();
}