//
// Copyright 2015-2021 by Garmin Ltd. or its subsidiaries.
// Subject to Garmin SDK License Agreement and Wearables
// Application Developer Agreement.
//

import Toybox.Communications;
import Toybox.Cryptography;
import Toybox.Lang;
import Toybox.Time.Gregorian;

using Toybox.PersistedContent;

class Http {

var host;
var uri;
var caller;
var cb;

var body;

var html_opts as Dictionary or Null;

public function initialize(host) {

    me.host = ((host == null) || host.equals("")) ? null : proto(host);

    set_opts({"Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON},
             Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON);
}

function set_opts(hdrs as Dictionary, reply)
{

    html_opts = {
        :headers => hdrs,
        :responseType => reply
    };
}

public function get_host()
{

    return host;
}

public function set_host(host)
{

    me.host = host;
}

private function proto(h)
{

    if (h == null) {
        return h; }

    if (h.find("?") == 0) {
        return null; }

    if (h.find("://") != null) {
        return h; }

    return "https://" + h;
}

public function get(uri, body, caller, cb)
{

    return do_req(Communications.HTTP_REQUEST_METHOD_GET, uri, body, caller, cb);
}

public function post(uri, body, caller, cb)
{

    return do_req(Communications.HTTP_REQUEST_METHOD_POST, uri, body, caller, cb);
}

public function do_req(type, uri, body, caller, cb)
{

    if (host == null || host.length() == 0) {
        //C.set_alert(null, "No host");
        return;
    }

    me.uri = uri;
    me.body = body;
    me.caller = caller;
    me.cb = cb;

    html_opts[:method] = type;
//L.dbg_log(L.DBG_HTTP, "do_req(" + type + "):" + host + uri + " => " + body);
    Communications.makeWebRequest(
        host + uri,
        body,
        html_opts,
        method(:got_req)
    );
    return;
}

//! Receive the data from the initial API request
public function got_req(responseCode as Number, data as Dictionary<String, Object?> or PersistedContent.Iterator or String or Null) as Void
{

//L.pr_json(L.DBG_HTTP, "got_req:" + responseCode, data);
    cb.invoke(responseCode, data, caller);
}

}