API.js

//API for habitica
var _ = require("sdk/l10n").get;
var Request = require("sdk/request").Request;
var Prefs = require("sdk/simple-prefs").prefs;
var Self = require("sdk/self");
var { on, once, off, emit } = require('sdk/event/core');


//make a http-object for request to habitica.com
//after accomplishing request run callback with two arguments: api and json from response
function make_request(arg)
{
    let r = Request({
        url: "https://habitica.com" + arg.path,
        contentType: "application/json",
        headers: {"x-api-user": Prefs.userId, "x-api-key": Prefs.apiKey},
        content: arg.content
    });

    r.on("complete", function(response) {
        if (200 != response.status) {
            if (401 == response.status) {
                emit(arg.api, "invalid_credentials", _("invalid_credentials"));
            } else {
                emit(arg.api, "error", _("notification_title_error") + " " +_("notification_text_error_p1") + response.status + " " +_("notification_text_error_p2"));
            }
        } else if (! response.json){
            emit (arg.api, "error", _("server_return_not_json:") + response.text);
        } else {
            if (! response.json.success)
                emit(arg.api, "error", _("notification_title_error") + " " +_("notification_text_error_p1") + response.status + " " +_("notification_text_error_p2"));
            else
                arg.callback(arg.api, response.json.data);
        }
    });
    return r;
}

var API = {
    update_info: function ()
    {
        let r = make_request({api:this,
                              path:"/api/v3/user",
                              callback:function (api, response) {emit (api, "updated", response)}});

        r.get();
    },

    change_task_rate : function(taskId, direction)
    {
        //FIXME: wait for bug https://github.com/lefnire/habitrpg/issues/786
        //as workaround sent '{}' in POST body.
        let r = make_request({api:this,
                              path:"/api/v3/tasks/" + taskId + "/score/" + direction,
                              callback:function (api, response) {api.update_info();},
                              content: "{}"});
        r.post();
    },

    request_task_update:function()
    {
        let r = make_request({api:this,
                              path:"/api/v3/tasks/user",
                              callback:function (api, response) {
                                  emit(api, "user-tasks-updated", response)
                              }
                             });
        r.get()
    }
}

exports.API = API;