// Copyright 2015 The Emscripten Authors. All rights reserved.

// Emscripten is available under two separate licenses, the MIT license and the

// University of Illinois/NCSA Open Source License. Both these licenses can be

// found in the LICENSE file.

// *** Environment setup code ***

var arguments_ = [];

var debug = false;

var ENVIRONMENT_IS_NODE = typeof process === 'object';

var ENVIRONMENT_IS_WEB = typeof window === 'object';

var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';

var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;

if (ENVIRONMENT_IS_NODE) {

// Expose functionality in the same simple way that the shells work

// Note that we pollute the global namespace here, otherwise we break in node

print = function(x) {

process['stdout'].write(x + '\n');

};

printErr = function(x) {

process['stderr'].write(x + '\n');

};

var nodeFS = require('fs');

var nodePath = require('path');

if (!nodeFS.existsSync) {

nodeFS.existsSync = function(path) {

try {

return !!nodeFS.readFileSync(path);

} catch(e) {

return false;

}

}

}

function find(filename) {

var prefixes = [nodePath.join(__dirname, '..', 'src'), process.cwd()];

for (var i = 0; i < prefixes.length; ++i) {

var combined = nodePath.join(prefixes[i], filename);

if (nodeFS.existsSync(combined)) {

return combined;

}

}

return filename;

}

read = function(filename, binary) {

filename = nodePath['normalize'](filename);

var ret = nodeFS['readFileSync'](filename);

// The path is absolute if the normalized version is the same as the resolved.

if (!ret && filename != nodePath['resolve'](filename)) {

filename = path.join(__dirname, '..', 'src', filename);

ret = nodeFS['readFileSync'](filename);

}

if (ret && !binary) ret = ret.toString();

return ret;

};

readBinary = function(filename) { return read(filename, true) };

load = function(f) {

globalEval(read(f));

};

arguments_ = process['argv'].slice(2);

} else if (ENVIRONMENT_IS_SHELL) {

// Polyfill over SpiderMonkey/V8 differences

if (!this['read']) {

this['read'] = function(f) { snarf(f) };

}

if (typeof scriptArgs != 'undefined') {

arguments_ = scriptArgs;

} else if (typeof arguments != 'undefined') {

arguments_ = arguments;

}

} else if (ENVIRONMENT_IS_WEB) {

this['print'] = printErr = function(x) {

console.log(x);

};

this['read'] = function(url) {

var xhr = new XMLHttpRequest();

xhr.open('GET', url, false);

xhr.send(null);

return xhr.responseText;

};

if (this['arguments']) {

arguments_ = arguments;

}

} else if (ENVIRONMENT_IS_WORKER) {

// We can do very little here...

this['load'] = importScripts;

} else {

throw 'Unknown runtime environment. Where are we?';

}

function globalEval(x) {

eval.call(null, x);

}

if (typeof load === 'undefined' && typeof read != 'undefined') {

this['load'] = function(f) {

globalEval(read(f));

};

}

if (typeof printErr === 'undefined') {

this['printErr'] = function(){};

}

if (typeof print === 'undefined') {

this['print'] = printErr;

}

assert = function(x, message) {

if (!x) throw 'assertion failed: ' + message + ' : ' + new Error().stack;

}

if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function imul(a, b) {

var ah = a >>> 16;

var al = a & 0xffff;

var bh = b >>> 16;

var bl = b & 0xffff;

return (al*bl + ((ah*bl + al*bh) << 16))|0;

};

console.log = printErr;

// *** Environment setup code ***

var lz4 = arguments_[0];

var input = arguments_[1];

var output = arguments_[2];

load(lz4);

var data = readBinary(input);

if (!(data instanceof ArrayBuffer)) {

printErr('converting to ArrayBuffer');

data = new Uint8Array(data).buffer;

}

var start = Date.now();

var compressedData = MiniLZ4.compressPackage(data);

nodeFS['writeFileSync'](output, Buffer(compressedData['data']));

compressedData['data'] = null;

printErr('compressed in ' + (Date.now() - start) + ' ms');

print(JSON.stringify(compressedData));