/**
* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

// MODULES //

var bench = require( '@stdlib/bench' );
var randu = require( '@stdlib/random/base/randu' );
var isFunction = require( '@stdlib/assert/is-function' );
var isArray = require( '@stdlib/assert/is-array' );
var pkg = require( './../package.json' ).name;
var reorderArguments = require( './../lib' );


// FUNCTIONS //

function foo( a, b, c ) {
	return [ a, b, c ];
}

function reversed( a, b, c ) {
	return [ c, b, a ];
}


// MAIN //

bench( pkg, function benchmark( b ) {
	var indices;
	var out;
	var tmp;
	var i;

	indices = [ 2, 1, 0 ];
	b.tic();
	for ( i = 0; i < b.iterations; i++ ) {
		tmp = indices[ 2 ];
		indices[ 0 ] = indices[ 2 ];
		indices[ 2 ] = tmp;
		out = reorderArguments( foo, indices );
		if ( typeof out !== 'function' ) {
			b.fail( 'should return a function' );
		}
	}
	b.toc();
	if ( !isFunction( out ) ) {
		b.fail( 'should return a function' );
	}
	b.pass( 'benchmark finished' );
	b.end();
});

bench( pkg+'::returned_function', function benchmark( b ) {
	var bar;
	var out;
	var i;

	bar = reorderArguments( foo, [ 2, 1, 0 ] );
	b.tic();
	for ( i = 0; i < b.iterations; i++ ) {
		out = bar( randu(), randu(), randu() );
		if ( typeof out !== 'object' ) {
			b.fail( 'should return an array' );
		}
	}
	b.toc();
	if ( !isArray( out ) ) {
		b.fail( 'should return an array' );
	}
	b.pass( 'benchmark finished' );
	b.end();
});

bench( pkg+'::direct', function benchmark( b ) {
	var out;
	var i;

	b.tic();
	for ( i = 0; i < b.iterations; i++ ) {
		out = reversed( randu(), randu(), randu() );
		if ( typeof out !== 'object' ) {
			b.fail( 'should return an array' );
		}
	}
	b.toc();
	if ( !isArray( out ) ) {
		b.fail( 'should return an array' );
	}
	b.pass( 'benchmark finished' );
	b.end();
});
