module.exports = exports = build;

exports.usage = 'Attempts to compile the module by dispatching to node-gyp or nw-gyp';

const napi = require('./util/napi.js');
const compile = require('./util/compile.js');
const handle_gyp_opts = require('./util/handle_gyp_opts.js');
const configure = require('./configure.js');

function do_build(gyp, argv, callback) {
	handle_gyp_opts(gyp, argv, (err, result) => {
		let final_args = ['build'].concat(result.gyp).concat(result.pre);
		if (result.unparsed.length > 0) {
			final_args = final_args.concat(['--']).concat(result.unparsed);
		}
		if (!err && result.opts.napi_build_version) {
			napi.swap_build_dir_in(result.opts.napi_build_version);
		}
		compile.run_gyp(final_args, result.opts, (err2) => {
			if (result.opts.napi_build_version) {
				napi.swap_build_dir_out(result.opts.napi_build_version);
			}
			return callback(err2);
		});
	});
}

function build(gyp, argv, callback) {
	// Form up commands to pass to node-gyp:
	// We map `node-pre-gyp build` to `node-gyp configure build` so that we do not
	// trigger a clean and therefore do not pay the penalty of a full recompile
	if (argv.length && argv.indexOf('rebuild') > -1) {
		argv.shift(); // remove `rebuild`
		// here we map `node-pre-gyp rebuild` to `node-gyp rebuild` which internally means
		// "clean + configure + build" and triggers a full recompile
		compile.run_gyp(['clean'], {}, (err3) => {
			if (err3) return callback(err3);
			configure(gyp, argv, (err4) => {
				if (err4) return callback(err4);
				return do_build(gyp, argv, callback);
			});
		});
	} else {
		return do_build(gyp, argv, callback);
	}
}
