use std::path::PathBuf;

fn main() {
    let manifest_directory = PathBuf::from(std::env::var("CARGO_MANIFEST_DIR").unwrap());
    let definitions = manifest_directory.join("definitions");
    let dialect = definitions.join("kaptan.xml");
    println!("cargo::rerun-if-changed={}", definitions.display());
    // The upstream generator conditionally emits derives for these optional
    // ecosystem crates. Kaptan deliberately does not expose those incomplete
    // features, so tell rustc the generated inactive cfgs are intentional.
    println!("cargo::rustc-check-cfg=cfg(feature, values(\"serde\", \"arbitrary\", \"ts-rs\"))");
    let output_directory = std::env::var("OUT_DIR").unwrap();
    mavlink_bindgen::generate(
        mavlink_bindgen::XmlDefinitions::Files(vec![dialect]),
        &output_directory,
    )
    .unwrap();
    // Bindgen's index feature-gates every dialect module. Kaptan has exactly
    // one unconditional dialect, so load its generated file as a normal Rust
    // module instead of exposing a redundant Cargo feature.
    std::fs::write(
        PathBuf::from(output_directory).join("kaptan_module.rs"),
        "#[allow(non_camel_case_types, non_snake_case)]\n\
         #[allow(clippy::derive_partial_eq_without_eq, clippy::field_reassign_with_default)]\n\
         #[allow(clippy::unnecessary_cast, clippy::bad_bit_mask)]\n\
         #[allow(clippy::suspicious_else_formatting)]\n\
         #[path = \"kaptan.rs\"]\npub mod kaptan;\n",
    )
    .unwrap();
}