//! macOS: embed an Info.plist (`__TEXT,__info_plist`). The copy inside Kestrove.app is signed sandboxed, and the
//! sandbox refuses to start an executable without a bundle identifier. `KV_NMH_BUNDLE_ID` is set by
//! scripts/build-apple.sh to the app's bundle id + ".nmh"; codesign takes the signing identifier from it.

use std::env;
use std::fs;
use std::path::PathBuf;

fn main() {
    println!("cargo:rerun-if-env-changed=KV_NMH_BUNDLE_ID");
    if env::var("CARGO_CFG_TARGET_OS").as_deref() != Ok("macos") {
        return;
    }
    let id = env::var("KV_NMH_BUNDLE_ID").unwrap_or_else(|_| "app.kestrove.nmh".into());
    assert!(
        !id.is_empty() && id.chars().all(|c| c.is_ascii_alphanumeric() || c == '.' || c == '-'),
        "KV_NMH_BUNDLE_ID must be a reverse-DNS identifier"
    );
    let plist = format!(
        r#"<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>CFBundleIdentifier</key>
	<string>{id}</string>
	<key>CFBundleName</key>
	<string>kestrove-nmh</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleShortVersionString</key>
	<string>{version}</string>
</dict>
</plist>
"#,
        version = env::var("CARGO_PKG_VERSION").unwrap()
    );
    let out = PathBuf::from(env::var("OUT_DIR").unwrap()).join("Info.plist");
    fs::write(&out, plist).unwrap();
    println!("cargo:rustc-link-arg-bins=-Wl,-sectcreate,__TEXT,__info_plist,{}", out.display());
}