const JAIKU_MAXLEN = 140;

Jaiku = {
	addKey:function(key){
		if (!Application.prefs.has("jaiku_user_api_key")) {
                    Application.prefs.setValue("jaiku_user_api_key", key);
                } else {
                    var new_key = Application.prefs.get("jaiku_user_api_key");
                    new_key.value = key;
                    return new_key.value;
                }

	},
	
	addUsername:function(username){
		Application.prefs.setValue("jaiku_user_username", username);
	},
	
	getUsername:function(){
                username = Application.prefs.get("jaiku_user_username");
                if(username){
		  return username.value;
                } else {
                  return "Username not set!"
                }
	},
	
	getKey:function(){
		return Application.prefs.get("jaiku_user_api_key").value;
	},
	
	everythingIsOK:function(){
		return Application.prefs.has("jaiku_user_username") && Application.prefs.has("jaiku_user_api_key");
	}
};


CmdUtils.CreateCommand({
  name: "jaiku-setuserandkey",
  takes: {username: noun_arb_text},
  modifiers: {"api": noun_arb_text},
  icon:"http://jaiku.com/favicon.ico",

  author: {name: "Fernando Takai", homepage: "http://fernandotakai.wordpress.com"},
  license: "MPL",
  description: "Set your jaiku username and key. Check your key at http://api.jaiku.com",
  help: "Type jaiku-setuserandkey <username> <apikey>. Check your key at http://api.jaiku.com",
    
  execute: function(username, mods) {
    if(username.text.length < 1) {
      displayMessage("Please, enter your username");
      return;
    }

    var api = mods.api.text || ""

    if(api.length < 1) {
      displayMessage("Please, enter your api key");
      return;
    }
    
    Jaiku.addKey(mods.api.text);
    Jaiku.addUsername(username.text);
    displayMessage("Your username and api key has been set.");    
  }
});


CmdUtils.CreateCommand({
  name: "jaiku",
  takes: {status: noun_arb_text},
  modifiers : {"at":noun_type_geolocation},
  icon:"http://jaiku.com/favicon.ico",
  
  author: {name: "Fernando Takai", homepage: "http://fernandotakai.wordpress.com"},
  license: "MPL",
  description: "Post to Jaiku using Ubiquity",
  help: "Type jaiku your message to post.",
  
  preview: function(previewBlock, statusText) {
    var previewTemplate = "Updates your Jaiku presence : <br/>" +       
                          "<b>${status}</b> <br /><br />" + 
                          "Characters remaining: <b>${chars}</b>";
    var truncateTemplate = "<br />The last <b>${truncate}</b> " + 
                           "characters will be truncated!";
    var previewData = {
      status: statusText.text,
      chars: JAIKU_MAXLEN - statusText.text.length,
      username: Jaiku.getUsername()
    };
      
    var previewHTML = CmdUtils.renderTemplate(previewTemplate,
                                                    previewData);
    
    if(previewData.chars < 0) {
      var truncateData = {
        truncate: 0 - previewData.chars
      };
      
      previewHTML += CmdUtils.renderTemplate(truncateTemplate,
                                                   truncateData);
    }
    
    previewBlock.innerHTML = previewHTML;
  },
  
  execute: function(statusText, mods) {

    if(statusText.text.length < 1) {
      displayMessage("Jaiku requires a status to be entered");
      return;
    }
    
    if (Jaiku.everythingIsOK()) {
        var loc = "";
        if(mods.at.text){
          loc = mods.at.text;
        } else {
          var place = CmdUtils.getGeoLocation();   
          loc = place.city + "," + place.country;
        }

        var updateUrl = "http://api.jaiku.com/jason";
        var status = statusText.text;
        var updateParams = {
          personal_key: Jaiku.getKey(),
          user: Jaiku.getUsername(),
          message: status,
          method: "presence.send",
          location: loc 
        };
        

        jQuery.ajax({
          type: "POST",
          url: updateUrl,
          data: updateParams,
          dataType: "json",
          error: function(msg) {
            displayMessage("Jaiku error - status not updated");
          },
          success: function(msg) {
            if(msg.status != "error"){
               displayMessage("Status updated!");
            } else {
               displayMessage(msg.message);
            }
          }
        });
    } else {
        displayMessage("Please set your user api key with jaiku-setuserandkey");
    }
  }
});