var gulp = require('gulp')

, purescript = require('gulp-purescript');

var paths = {

src: [

'src/**/*.purs',

'bower_components/purescript-*/src/**/*.purs'

],

example: {

app: {

src: [

'src/**/*.purs',

'example/app/app.purs',

'bower_components/purescript-*/src/**/*.purs'

]

},

tutorial: {

src: [

'src/**/*.purs',

'example/tutorial/tutorial.purs',

'bower_components/purescript-*/src/**/*.purs',

'example/tutorial/bower_components/purescript-*/src/**/*.purs'

],

dest: '.'

}

}

};

var options = {

example: {

app: {

output: 'example/app/app.js',

main: true

},

tutorial: {

output: 'example/tutorial/tutorial.js',

main: 'Tutorial'

}

}

};

var compile = function(paths, options) {

return function() {

// We need this hack for now until gulp does something about

// https://github.com/gulpjs/gulp/issues/71

var psc = purescript.psc(options);

psc.on('error', function(e) {

console.error(e.message);

psc.end();

});

return gulp.src(paths.src)

.pipe(psc)

.pipe(gulp.dest(paths.dest || 'js'));

};

};

gulp.task('src', compile(paths, {}));

gulp.task('example-app', compile(paths.example.app, options.example.app));

gulp.task('example-tutorial',

compile(paths.example.tutorial, options.example.tutorial));

gulp.task('watch', function() {

gulp.watch(paths.src, ['src']);

});

gulp.task('default', ['src', 'watch']);

gulp.task('examples', ['example-app', 'example-tutorial']);