use std::path::PathBuf;
use bindgen::MacroTypeVariation;

#[cfg(debug_assertions)]
pub fn adjust(build: &mut cc::Build) -> &mut cc::Build {
    build.define("SQLITE_ENABLE_API_ARMOR", None).define("SQLITE_ENABLE_EXPLAIN_COMMENTS", None)
}

#[cfg(not(debug_assertions))]
pub fn adjust(build: &mut Build) -> &mut Build {
    build
}

pub fn main() -> Result<(), Box<dyn std::error::Error>>{
    println!("cargo:rerun-if-changed=sqlite");

    let mut build = cc::Build::new();
    let build = build
        .files(["sqlite/sqlite3.c"])
        // there are a few, but we can't change those
        .warnings(false)
        .static_flag(true)
        .cpp(false);

    let build = build
        .define("SQLITE_ENABLE_FTS5", None)
        .define("SQLITE_ENABLE_JSON", None)
        .define("SQLITE_ENABLE_MATH_FUNCTIONS", None)
        .define("SQLITE_THREADSAFE", "2")
        .define("SQLITE_MAX_EXPR_DEPTH", "0")
        .define("SQLITE_DQS", "0")
        .define("SQLITE_DEFAULT_MEMSTATUS", "0")
        .define("SQLITE_DEFAULT_SYNCHRONOUS", "2")
        .define("SQLITE_LIKE_DOESNT_MATCH_BLOBS", None)
        .define("SQLITE_OMIT_DECLTYPE", None)
        .define("SQLITE_OMIT_DEPRECATED", None)
        .define("SQLITE_OMIT_PROGRESS_CALLBACK", None)
        .define("SQLITE_OMIT_SHARED_CACHE", None)
        .define("SQLITE_USE_ALLOCA", None)
        .define("SQLITE_OMIT_AUTOINIT", None);

    let build = adjust(build);

    build.compile("sqlite3");

    let cargo_out = PathBuf::from(std::env::var("OUT_DIR").unwrap());

    let bindings = bindgen::Builder::default()
        .header("sqlite/sqlite3.h")
        .disable_header_comment()
        .default_macro_constant_type(MacroTypeVariation::Signed)
        .generate()?;

    bindings.write_to_file(cargo_out.join("sqlite3.rs"))?;

    Ok(())
}