use makemake::prelude::*;

fn main() {
    let mut makefile = Makefile::new();

    makefile.comment("Generated by makemake!");
    makefile.newline();

    let src = makefile.assign("SRC", Function::wildcard([expr!("src/*.c")]));
    let obj = makefile.assign("OBJ", Substitution::new(src, ".c", ".o"));
    let cc = makefile.assign_without_overwrite(
        "CC",
        Function::shell("which gcc || which clang")
    );
    let cflags = makefile.append("CFLAGS", "-std=c99 -Wall -Wextra");
    let target = makefile.assign("TARGET", "main");

    makefile.newline();

    makefile
        .rule(target)
        .phony()
        .dep("main.c")
        .dep(obj)
        .cmd(expr!(
            cc;
            cflags;
            "-o";
            makefile.target_var();
            makefile.deps_var()
        ));

    makefile
        .rule("clean")
        .phony()
        .dep(target)
        .dep(obj)
        .cmd(expr!("rm -rf", makefile.deps_var()));

    print!("{}", makefile.build());
}