/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.importGlobalProperties(['File']);


const Assert = {
  ok(cond, text) {
    // we don't have the test harness' utilities in this scope, so we need this
    // little helper. In the failure case, the exception is propagated to the
    // caller in the main run_test() function, and the test fails.
    if (!cond)
      throw "Failed check: " + text;
  }
};

function FileComponent() {
  this.wrappedJSObject = this;
}
FileComponent.prototype =
{
  doTest: function(cb) {
    // throw if anything goes wrong

    // find the current directory path
    var file = Components.classes["@mozilla.org/file/directory_service;1"]
               .getService(Ci.nsIProperties)
               .get("CurWorkD", Ci.nsIFile);
    file.append("xpcshell.ini");

    // should be able to construct a file
    var f1, f2;
    Promise.all([
      File.createFromFileName(file.path).then(f => { f1 = f; }),
      File.createFromNsIFile(file).then(f => { f2 = f; }),
    ])
    .then(() => {
      // do some tests
      Assert.ok(f1 instanceof File, "Should be a DOM File");
      Assert.ok(f2 instanceof File, "Should be a DOM File");

      Assert.ok(f1.name == "xpcshell.ini", "Should be the right file");
      Assert.ok(f2.name == "xpcshell.ini", "Should be the right file");

      Assert.ok(f1.type == "", "Should be the right type");
      Assert.ok(f2.type == "", "Should be the right type");
    })
    .then(() => {
      var threw = false;
      try {
        // Needs a ctor argument
        var f7 = new File();
      } catch (e) {
        threw = true;
      }
      Assert.ok(threw, "No ctor arguments should throw");

      var threw = false;
      try {
        // Needs a valid ctor argument
        var f7 = new File(Date(132131532));
      } catch (e) {
        threw = true;
      }
      Assert.ok(threw, "Passing a random object should fail");

      // Directories fail
      var dir = Components.classes["@mozilla.org/file/directory_service;1"]
                          .getService(Ci.nsIProperties)
                          .get("CurWorkD", Ci.nsIFile);
      return File.createFromNsIFile(dir)
    })
    .then(() => {
      Assert.ok(false, "Can't create a File object for a directory");
    }, () => {
      Assert.ok(true, "Can't create a File object for a directory");
    })
    .then(() => {
      cb(true);
    });
  },

  // nsIClassInfo + information for XPCOM registration code in XPCOMUtils.jsm
  classDescription: "File in components scope code",
  classID: Components.ID("{da332370-91d4-464f-a730-018e14769cab}"),
  contractID: "@mozilla.org/tests/component-file;1",

  // nsIClassInfo
  flags: 0,

  getInterfaces: function getInterfaces(aCount) {
    var interfaces = [Components.interfaces.nsIClassInfo];
    aCount.value = interfaces.length;
    return interfaces;
  },

  getScriptableHelper: function getScriptableHelper() {
    return null;
  },

  // nsISupports
  QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsIClassInfo])
};

var gComponentsArray = [FileComponent];
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(gComponentsArray);
