/* 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/. */

const { classes: Cc, utils: Cu, interfaces: Ci } = Components;

var reportURL;

Cu.import("resource://gre/modules/CrashReports.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Task.jsm");
Cu.import("resource://gre/modules/osfile.jsm");

XPCOMUtils.defineLazyModuleGetter(this, "CrashSubmit",
  "resource://gre/modules/CrashSubmit.jsm");

const buildID = Services.appinfo.appBuildID;

function submitSuccess(dumpid, ret) {
  let link = document.getElementById(dumpid);
  if (link) {
    link.className = "";
    // reset the link to point at our new crash report. this way, if the
    // user clicks "Back", the link will be correct.
    let CrashID = ret.CrashID;
    link.firstChild.textContent = CrashID;
    link.setAttribute("id", CrashID);
    link.removeEventListener("click", submitPendingReport, true);

    if (reportURL) {
      link.setAttribute("href", reportURL + CrashID);
      // redirect the user to their brand new crash report
      window.location.href = reportURL + CrashID;
    }
  }
}

function submitError(dumpid) {
  //XXX: do something more useful here
  let link = document.getElementById(dumpid);
  if (link)
    link.className = "";
  // dispatch an event, useful for testing
  let event = document.createEvent("Events");
  event.initEvent("CrashSubmitFailed", true, false);
  document.dispatchEvent(event);
}

function submitPendingReport(event) {
  var link = event.target;
  var id = link.firstChild.textContent;
  if (CrashSubmit.submit(id, { submitSuccess: submitSuccess,
                               submitError: submitError,
                               noThrottle: true })) {
    link.className = "submitting";
  }
  event.preventDefault();
  return false;
}

function populateReportList() {
  var prefService = Cc["@mozilla.org/preferences-service;1"].
                    getService(Ci.nsIPrefBranch);

  try {
    reportURL = prefService.getCharPref("breakpad.reportURL");
    // Ignore any non http/https urls
    if (!/^https?:/i.test(reportURL))
      reportURL = null;
  }
  catch (e) { }
  if (!reportURL) {
    document.getElementById("clear-reports").style.display = "none";
    document.getElementById("reportList").style.display = "none";
    document.getElementById("noConfig").style.display = "block";
    return;
  }
  let reports = CrashReports.getReports();

  if (reports.length == 0) {
    document.getElementById("clear-reports").style.display = "none";
    document.getElementById("reportList").style.display = "none";
    document.getElementById("noReports").style.display = "block";
    return;
  }

  var formatter = Cc["@mozilla.org/intl/scriptabledateformat;1"].
                  createInstance(Ci.nsIScriptableDateFormat);
  var body = document.getElementById("tbody");
  var ios = Cc["@mozilla.org/network/io-service;1"].
            getService(Ci.nsIIOService);
  var reportURI = ios.newURI(reportURL, null, null);
  // resolving this URI relative to /report/index
  var aboutThrottling = ios.newURI("../../about/throttling", null, reportURI);

  for (var i = 0; i < reports.length; i++) {
    var row = document.createElement("tr");
    var cell = document.createElement("td");
    row.appendChild(cell);
    var link = document.createElement("a");
    if (reports[i].pending) {
      link.setAttribute("href", aboutThrottling.spec);
      link.addEventListener("click", submitPendingReport, true);
    }
    else {
      link.setAttribute("href", reportURL + reports[i].id);
    }
    link.setAttribute("id", reports[i].id);
    link.appendChild(document.createTextNode(reports[i].id));
    cell.appendChild(link);

    var date = new Date(reports[i].date);
    cell = document.createElement("td");
    var datestr = formatter.FormatDate("",
                                       Ci.nsIScriptableDateFormat.dateFormatShort,
                                       date.getFullYear(),
                                       date.getMonth() + 1,
                                       date.getDate());
    cell.appendChild(document.createTextNode(datestr));
    row.appendChild(cell);
    cell = document.createElement("td");
    var timestr = formatter.FormatTime("",
                                       Ci.nsIScriptableDateFormat.timeFormatNoSeconds,
                                       date.getHours(),
                                       date.getMinutes(),
                                       date.getSeconds());
    cell.appendChild(document.createTextNode(timestr));
    row.appendChild(cell);
    body.appendChild(row);
  }
}

let clearReports = Task.async(function*() {
  let bundle = Services.strings.createBundle("chrome://global/locale/crashes.properties");

  if (!Services.
         prompt.confirm(window,
                        bundle.GetStringFromName("deleteconfirm.title"),
                        bundle.GetStringFromName("deleteconfirm.description"))) {
    return;
  }

  let cleanupFolder = Task.async(function*(path, filter) {
    let iterator = new OS.File.DirectoryIterator(path);
    try {
      yield iterator.forEach(Task.async(function*(aEntry) {
        if (!filter || (yield filter(aEntry))) {
          yield OS.File.remove(aEntry.path);
        }
      }));
    } catch (e if e instanceof OS.File.Error && e.becauseNoSuchFile) {
    } finally {
      iterator.close();
    }
  });

  yield cleanupFolder(CrashReports.submittedDir.path, function*(aEntry) {
    return aEntry.name.startsWith("bp-") && aEntry.name.endsWith(".txt");
  });

  let oneYearAgo = Date.now() - 31586000000;
  yield cleanupFolder(CrashReports.reportsDir.path, function*(aEntry) {
    if (!aEntry.name.startsWith("InstallTime") ||
        aEntry.name == "InstallTime" + buildID) {
      return false;
    }

    let date = aEntry.winLastWriteDate;
    if (!date) {
      let stat = yield OS.File.stat(aEntry.path);
      date = stat.lastModificationDate;
    }

    return (date < oneYearAgo);
  });

  yield cleanupFolder(CrashReports.pendingDir.path);

  document.getElementById("clear-reports").style.display = "none";
  document.getElementById("reportList").style.display = "none";
  document.getElementById("noReports").style.display = "block";
});