/* 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/. */

var { cal } = ChromeUtils.import("resource://calendar/modules/calUtils.jsm");
var { ICAL } = ChromeUtils.import("resource://calendar/modules/ical.js");

function calICALJSTimezone(innerObject) {
  this.innerObject = innerObject || new ICAL.Timezone();
  this.wrappedJSObject = this;
}

calICALJSTimezone.prototype = {
  QueryInterface: ChromeUtils.generateQI([Ci.calITimezone]),
  classID: Components.ID("{6702eb17-a968-4b43-b562-0d0c5f8e9eb5}"),

  innerObject: null,

  get provider() {
    return cal.getTimezoneService();
  },
  get icalComponent() {
    let innerComp = this.innerObject.component;
    let comp = null;
    if (innerComp) {
      comp = cal.getIcsService().createIcalComponent("VTIMEZONE");
      comp.icalComponent = innerComp;
    }
    return comp;
  },
  get tzid() {
    return this.innerObject.tzid;
  },
  get isFloating() {
    return this.innerObject == ICAL.Timezone.localTimezone;
  },
  get isUTC() {
    return this.innerObject == ICAL.Timezone.utcTimezone;
  },
  get latitude() {
    return this.innerObject.latitude;
  },
  get longitude() {
    return this.innerObject.longitude;
  },
  get displayName() {
    let bundle = ICAL.Timezone.cal_tz_bundle;
    let stringName = "pref.timezone." + this.tzid.replace(/\//g, ".");
    let displayName = this.tzid;
    try {
      displayName = bundle.GetStringFromName(stringName);
    } catch (e) {
      // Just use the TZID if the string is missing.
    }
    this.__defineGetter__("displayName", () => {
      return displayName;
    });
    return displayName;
  },

  tostring: function() {
    return this.innerObject.toString();
  },
};

function calLibicalTimezone(tzid, component, latitude, longitude) {
  this.wrappedJSObject = this;
  this.tzid = tzid;
  this.mComponent = component;
  this.mUTC = false;
  this.isFloating = false;
  this.latitude = latitude;
  this.longitude = longitude;
}
calLibicalTimezone.prototype = {
  QueryInterface: ChromeUtils.generateQI([Ci.calITimezone]),
  classID: Components.ID("{6702eb17-a968-4b43-b562-0d0c5f8e9eb5}"),

  toString: function() {
    return this.icalComponent ? this.icalComponent.toString() : this.tzid;
  },

  get isUTC() {
    return this.mUTC;
  },

  get icalComponent() {
    let comp = this.mComponent;
    if (comp && typeof comp == "string") {
      this.mComponent = cal
        .getIcsService()
        .parseICS("BEGIN:VCALENDAR\r\n" + comp + "\r\nEND:VCALENDAR\r\n", null)
        .getFirstSubcomponent("VTIMEZONE");
    }
    return this.mComponent;
  },

  get displayName() {
    if (this.mDisplayName === undefined) {
      try {
        let bundle = cal.getTimezoneService().wrappedJSObject.stringBundle;
        this.mDisplayName = bundle.GetStringFromName(
          "pref.timezone." + this.tzid.replace(/\//g, ".")
        );
      } catch (exc) {
        // don't assert here, but gracefully fall back to TZID:
        cal.LOG("Timezone property lookup failed! Falling back to " + this.tzid + "\n" + exc);
        this.mDisplayName = this.tzid;
      }
    }
    return this.mDisplayName;
  },

  get provider() {
    return cal.getTimezoneService();
  },
};
