//! Build script to compile tree-sitter-org grammar.

use std::path::PathBuf;

fn main() {
    let grammar_dir = PathBuf::from("tree-sitter-org/src");

    // Check if grammar exists
    if !grammar_dir.exists() {
        panic!(
            "tree-sitter-org grammar not found at {:?}. \
             Run: git clone https://github.com/nvim-orgmode/tree-sitter-org crates/org-parser/tree-sitter-org",
            grammar_dir
        );
    }

    // Compile parser.c
    let mut build = cc::Build::new();
    build
        .include(&grammar_dir)
        .file(grammar_dir.join("parser.c"))
        .warnings(false);

    // Compile scanner.c if it exists (org has one)
    let scanner_path = grammar_dir.join("scanner.c");
    if scanner_path.exists() {
        build.file(scanner_path);
    }

    build.compile("tree-sitter-org");

    // Tell cargo to rerun if grammar files change
    println!("cargo:rerun-if-changed=tree-sitter-org/src/parser.c");
    println!("cargo:rerun-if-changed=tree-sitter-org/src/scanner.c");
    println!("cargo:rerun-if-changed=tree-sitter-org/src/tree_sitter/parser.h");
}