/***************************
 * This code was created   *
 * by 1024x2, and is       *
 * licensed under the MIT  *
 * License, which means    *
 * you can do whatever you *
 * want on it as long as   *
 * you keep this copyright *
 * notice included with    *
 * this software. Please   *
 * respect that by not     *
 * deleting 'LICENSE' or   *
 * this notice. Thank you! *
 *               ~1024x2   *
 ***************************/

// Thanks, Draco!
function loadJS (source, onready){
  var sc = document.createElement("script");
  sc.src = source;
  sc.type = "text/javascript";
  if (onready) sc.addEventListener("load", onready);
  document.head.appendChild(sc);
  return sc;
}

// Taken from https://github.com/substack/semver-compare, thanks substack!
function cmp (a, b) {
  var pa = a.split('.');
  var pb = b.split('.');
  for (var i = 0; i < 3; i++) {
    var na = Number(pa[i]);
    var nb = Number(pb[i]);
    if (na > nb) return 1;
    if (nb > na) return -1;
    if (!isNaN(na) && isNaN(nb)) return 1;
    if (isNaN(na) && !isNaN(nb)) return -1;
  }
  return 0;
}

console.group("[pkg93]");
var failed = false;
console.log("[pkg93] Injecting packages...");
try {
  var config = JSON.parse(localStorage[".pkg93/config.json"]);
  config.installed.forEach(function (pkg) {
    eval(localStorage[".pkg93/downloaded/" + pkg + ".js"]);
  });
} catch (err) {
  console.error("[pkg93] Couldn't load package information.");
  failed = true;
}
console.log("[pkg93] Done!");
console.groupEnd();

le._apps.pkg93 = {
  exec: function() {
    const protected = ["3d","acid","acidbox","ansi","anthology","arena93","bananamp","base64","bytebeat","calc","castlegafa","catex","cd","clear","clearhist","clippy","code","contact","crazy","defrag","dmg","do a barrel roll","doctor","download","find","font","format","fullscreen","fx","gameoflife","glitch","global thermonuclear war","gravity","hampster","hello","help","hexed","history","hl3","hydra","ie6","iframe","img","info","js","key","killall","layer","lenna","lisa","ls","manifesto","marburg","messenger","mines","necronomicoin","pd","piskel","pkg93","pony","potato","progressquest","pwd","reboot","robby","rotate","shutdown","skifree","solitude","speech","starwars","superplayer","takethis","terminal","textarea","tree","trollbox","vega","virtualpc","vm","wat","whatif","whois","win","zkype"];
    const args = this.arg.arguments;
    const version = "v1.0.0";
    if (localStorage[".pkg93/config.json"] === undefined) {
      localStorage[".pkg93/config.json"] = '{"repos": ["http://codinggamerhd.com/main-repo"], "installed": [], "pkglist": []}';
    }
    if (localStorage[".pkg93/downloaded/"] === undefined) {
      localStorage[".pkg93/downloaded/"] = "";
    }
    localStorage[".pkg93/README.txt"] = "WARNING!\nThis folder contains important data about pkg93. Do not edit anything in here unless you want pkg93 to not work!\n\n~1024x2";
    var config = JSON.parse(localStorage[".pkg93/config.json"]);
    var request = new XMLHttpRequest();
    if (args.length === 0) {
      $log(`<b>pkg93 ${version}</b>
<b>Usage:</b> pkg93 [command]

<b><u>List of Commands</u></b>
<span style='color:#0f0'>pull</span>                      Updates package listing
<span style='color:#0f0'>get</span> <span style='color:#77f'>[package]</span>             Installs a package
<span style='color:#0f0'>rm</span> <span style='color:#77f'>[package]</span>              Uninstalls a package
<span style='color:#0f0'>add-repo</span> <span style='color:#77f'>[url]</span>            Adds a repository
<span style='color:#0f0'>rm-repo</span> <span style='color:#77f'>[id]</span>              Removes a repository
<span style='color:#0f0'>ls</span> <span style='color:#77f'>[pkgs|installed|repos]</span> Lists all packages, installed
                          packages or repositories.
<b><u>Color meanings</u></b>
<b><span style='color:#f0f'>Executing</span> <span style='color:#0f0'>OK</span> <span style='color:#f00'>Error</span> <span style='color:#ff0'>Warning</span></b>

<b><u>Examples</u></b>
pkg93 <span style='color:#0f0'>get</span> <span style='color:#77f'>gud</span>
pkg93 <span style='color:#0f0'>rm</span> <span style='color:#77f'>kebab</span>

<b><span style='color:#ff0'>WARN</span></b> Not all packages are safe. Treat packages like EXE files.`);
    } else if (args[0] == "pull") {
      var pkgs = [];
      config.pkglist = [];
      config.repos.forEach(function (source) {
        $log("<b><span style='color:#f0f'>GET</span></b>  " + source);
        request.open('GET', source + "/repo.json", false);
        try {
          request.send(null);
          var json = JSON.parse(request.responseText);
          json.packages.forEach(function(item) {
            $log("<b><span style='color:#0f0'>OK</span></b>   " + item + "@" + source);
            pkgs.push(item + "@" + source);
          });
          config.pkglist = config.pkglist.concat(pkgs);
        } catch (err) {
          $log("<b><span style='color:#f00'>ERR</span></b>  " + err.message);
        }
      });
    } else if (args[0] == "get") {
      if (args.length < 2) {
        $log("<b><span style='color:#f00'>ERR</span></b>  No package specified.");
      } else if (protected.includes(args[1])) {
        $log("<b><span style='color:#f00'>ERR</span></b>  You're trying to modify a pre-installed Windows93 app.\n      <b>Don't do that!</b>");
      } else {
        $log("<b><span style='color:#f0f'>SRCH</span></b> " + args[1]);
        var index = config.pkglist.findIndex(function(string) {
          return string.split("@")[0] == args[1];
        });
        if (index < 0) {
          $log("<b><span style='color:#f00'>ERR</span></b>  Not found.");
        } else {
          $log("<b><span style='color:#0f0'>OK</span></b>   Found!");
          var pkgname = config.pkglist[index].split("@")[0];
          var pkgsource = config.pkglist[index].split("@")[1];
          request.open('GET', pkgsource + "/" + pkgname + "/package.json", false);
          try {
            request.send(null);
            var json = JSON.parse(request.responseText);
            request.open('GET', pkgsource + "/" + pkgname + "/" + json.inject, false);
            request.send(null);
            localStorage[".pkg93/downloaded/" + pkgname + ".js"] = request.responseText;
            eval(request.responseText);
            $log("<b><span style='color:#0f0'>OK</span></b>   Injected package!");
            config.installed.push(pkgname);
          } catch (err) {
            $log("<b><span style='color:#f00'>ERR</span></b>  " + err.message);
          }
        }
      }
    } else if (args[0] == "rm") {
      if (args.length < 2) {
        $log("<b><span style='color:#f00'>ERR</span></b>  No package specified.");
      } else if (protected.includes(args[1])) {
        $log("<b><span style='color:#f00'>ERR</span></b>  You're trying to modify a pre-installed Windows93 app.\n      <b>Don't do that!</b>");
      } else if (!!localStorage[".pkg93/downloaded/un" + args[1] + ".js"]) {
        eval(localStorage[".pkg93/downloaded/un" + args[1] + ".js"]); // Typing eval makes me feel dirty.
      } else {
        var index = config.installed.indexOf(args[1]);
        if (index < 0) {
          $log("<b><span style='color:#f00'>ERR</span></b>  Not found.");
        } else {
          try {
            if (le._apps[config.installed[index]] === null) {
              $log("<b><span style='color:#f00'>ERR</span></b>  Already removed.");
            } else {
              le._apps[config.installed[index]] = null;
              config.installed = config.installed.splice(index, 1);
              $log("<b><span style='color:#0f0'>OK</span></b>   Removed!");
            }
          } catch (err) {
            $log("<b><span style='color:#f00'>ERR</span></b>  " + err.message);
          }
        }
      }
    } else if (args[0] == "add-repo") {
      try {
        config.repos.push(args[1]); // well, that was easy
        $log("<b><span style='color:#0f0'>OK</span></b>   Done!\n     Run \"pkg93 pull\" to update the package listing.");
      } catch (err) {
        $log("<b><span style='color:#f00'>ERR</span></b>  " + err.message);
      }
    } else if (args[0] == "rm-repo") {
      try {
        config.repos = config.repos.splice(parseInt(args[1]), 1);
        $log("<b><span style='color:#0f0'>OK</span></b>   Done!\n     Run \"pkg93 pull\" to update the package listing.");
      } catch (err) {
        $log("<b><span style='color:#f00'>ERR</span></b>  " + err.message);
      }
    } else if (args[0] == "ls") {
      if (args[1] == "pkgs") {
        $log(config.pkglist.join("\n"));
      } else if (args[1] == "installed") {
        $log(config.installed.join("\n"));
      } else if (args[1] == "repos") {
        $log(config.repos.join("\n"));
      } else {
        $log("<b><span style='color:#f00'>ERR</span></b>  You must select either pkgs, installed, or repos.");
      }
    } else {
      $log("<b><span style='color:#f00'>ERR</span></b>  Invalid command. Type \"pkg93\" without any arguments for help.");
    }
    localStorage[".pkg93/config.json"] = JSON.stringify(config);
  },
  icon: "/c/sys/skins/w93/install.png",
  terminal: true,
  hascli: true
};