var hello = "hello i2pcontrol";

function makeid(length) {
  var result = "";
  var characters =
    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
  var charactersLength = characters.length;
  for (var i = 0; i < length; i++) {
    result += characters.charAt(Math.floor(Math.random() * charactersLength));
  }
  return result;
}

function send(
  message,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc"
) {
  async function postData(url = "", data = {}) {
    // Default options are marked with *
    let requestBody = JSON.stringify(data);
    //console.log("(i2pcontrol) sending request", requestBody);
    let opts = {
      method: "POST", // *GET, POST, PUT, DELETE, etc.
      mode: "cors", // no-cors, *cors, same-origin
      cache: "no-cache", // *default, no-cache, reload, force-cache, only-if-cached
      credentials: "same-origin", // include, *same-origin, omit
      headers: {
        "Content-Type": "application/json",
      },
      redirect: "follow", // manual, *follow, error
      referrerPolicy: "no-referrer", // no-referrer, *client
      body: requestBody, // body data type must match "Content-Type" header
    };
    const response = await fetch(url, opts);
    return await response.json(); // parses JSON response into native JavaScript objects
  }

  //console.log("http://" + control_host + ":" + control_port + "/" + control_path)
  return postData(
    "http://" + control_host + ":" + control_port + "/" + control_path + "/",
    message
  );
}

async function authenticate(
  password = "itoopie",
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc"
) {
  var json = new Object();
  json["id"] = makeid(6);
  json["jsonrpc"] = "2.0";
  json["method"] = "Authenticate";
  json["params"] = new Object();
  json["params"]["API"] = 1;
  json["params"]["Password"] = password;
  return send(json, control_host, control_port, control_path);
}

async function GetToken(
  password = "itoopie",
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc"
) {
  function gettoken(authtoken) {
    return authtoken.result.Token;
  }
  let me = authenticate(password, control_host, control_port, control_path);
  return await me.then(gettoken);
}

async function Echo(
  message,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function echo(token) {
    console.log("(i2pcontrol) testing I2PControl connection");
    var json = new Object();
    json["id"] = makeid(6);
    json["jsonrpc"] = "2.0";
    json["method"] = "Echo";
    json["params"] = new Object();
    json["params"]["Token"] = token;
    json["params"]["Echo"] = message;
    return send(json, control_host, control_port, control_path);
  }
  let token = GetToken(password, control_host, control_port, control_path);
  let done = await token.then(echo);
  return done;
}

function UpdateEchoElementByID(
  Query,
  ID,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc"
) {
  function updateelement(update) {
    //console.log("(i2pcontrol)", update);
    if (document.getElementById(ID) !== null)
      document.getElementById(ID).innerText = update;
  }
  let net = Echo(Query, control_host, control_port, control_path, password);
  net.then(updateleement);
}

async function GetRate(
  Query,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function getrate(token) {
    var json = new Object();
    json["id"] = makeid(6);
    json["jsonrpc"] = "2.0";
    json["method"] = "I2PControl";
    json["params"] = new Object();
    json["params"]["Token"] = token;
    json["params"]["Stat"] = Query;
    json["params"]["Period"] = 2000;
    return send(json, control_host, control_port, control_path);
  }
  let token = GetToken(password, control_host, control_port, control_path);
  let done = await token.then(getrate);
  return done;
}

function UpdateGetRateElementByID(
  Query,
  ID,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc"
) {
  function updateelement(update) {
    //console.log("(i2pcontrol)", update);
    if (document.getElementById(ID) !== null)
      document.getElementById(ID).innerText = update;
  }
  let net = GetRate(Query, control_host, control_port, control_path, password);
  net.then(updateleement);
}

async function I2PControl(
  Query,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function i2pcontrol(token) {
    var json = new Object();
    json["id"] = makeid(6);
    json["jsonrpc"] = "2.0";
    json["method"] = "I2PControl";
    json["params"] = new Object();
    json["params"]["Token"] = token;
    json["params"][Query] = null;
    return send(json, control_host, control_port, control_path);
  }
  let token = GetToken(password, control_host, control_port, control_path);
  let done = await token.then(i2pcontrol);
  return done;
}

function UpdateI2PControlElementByID(
  Query,
  ID,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc"
) {
  function updateelement(update) {
    //console.log("(i2pcontrol)", update);
    if (document.getElementById(ID) !== null)
      document.getElementById(ID).innerText = update;
  }
  let net = I2PControl(
    Query,
    control_host,
    control_port,
    control_path,
    password
  );
  net.then(updateleement);
}

async function RouterInfo(
  Query,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function routerinfo(token) {
    var json = new Object();
    json["id"] = makeid(6);
    json["jsonrpc"] = "2.0";
    json["method"] = "RouterInfo";
    json["params"] = new Object();
    json["params"]["Token"] = token;
    json["params"][Query] = null;
    return send(json, control_host, control_port, control_path);
  }
  let token = GetToken(password, control_host, control_port, control_path);
  let done = await token.then(routerinfo);
  return done;
}

function UpdateRouterInfoElementByID(
  Query,
  ID,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function updateelement(update) {
    /*console.log(
      "(i2pcontrol) element",
      update.result[Query],
      ID,
      document.getElementById(ID)
    );*/
    if (document.getElementById(ID) !== null)
      document.getElementById(ID).innerText = update.result[Query];
  }

  let net = RouterInfo(
    Query,
    control_host,
    control_port,
    control_path,
    password
  );
  net.then(updateelement);
}

async function RouterManager(
  Query,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function routermanager(token) {
    var json = new Object();
    json["id"] = makeid(6);
    json["jsonrpc"] = "2.0";
    json["method"] = "RouterManager";
    json["params"] = new Object();
    json["params"]["Token"] = token;
    json["params"][Query] = null;
    return send(json, control_host, control_port, control_path);
  }
  let token = GetToken(password, control_host, control_port, control_path);
  let done = await token.then(routermanager);
  return done;
}

function UpdateRouterManagerElementByID(
  Query,
  ID,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function updateelement(update) {
    //console.log("(i2pcontrol)", update);
    if (document.getElementById(ID) !== null)
      document.getElementById(ID).innerText = update;
  }
  let net = RouterManager(
    Query,
    control_host,
    control_port,
    control_path,
    password
  );
  net.then(updateleement);
}

async function NetworkSetting(
  Query,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function networksetting(token) {
    var json = new Object();
    json["id"] = makeid(6);
    json["jsonrpc"] = "2.0";
    json["method"] = "NetworkSetting";
    json["params"] = new Object();
    json["params"]["Token"] = token;
    json["params"][Query] = null;
    return send(json, control_host, control_port, control_path);
  }
  let token = GetToken(password, control_host, control_port, control_path);
  let done = await token.then(networksetting);
  return done;
}

function UpdateNetworkSettingElementByID(
  Query,
  ID,
  control_host = "127.0.0.1",
  control_port = "7657",
  control_path = "jsonrpc",
  password = "itoopie"
) {
  function updateelement(update) {
    //console.log("(i2pcontrol)", update);
    document.getElementById(ID).innerText = update;
  }
  let net = NetworkSetting(
    Query,
    control_host,
    control_port,
    control_path,
    password
  );
  net.then(updateleement);
}

function UpdateContents() {
  UpdateRouterInfoElementByID("i2p.router.status", "router-status");
  UpdateRouterInfoElementByID("i2p.router.uptime", "router-uptime");
  UpdateRouterInfoElementByID("i2p.router.version", "router-version");
  UpdateRouterInfoElementByID(
    "i2p.router.net.bw.inbound.1s",
    "router-net-bw-inbound-1s"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.net.bw.inbound.15s",
    "router-net-bw-inbound-15s"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.net.bw.outbound.1s",
    "router-net-bw-outbound-1s"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.net.bw.outbound.15s",
    "router-net-bw-outbound-15s"
  );
  UpdateRouterInfoElementByID("i2p.router.net.status", "router-net-status");
  UpdateRouterInfoElementByID(
    "i2p.router.net.tunnels.participating",
    "router-net-tunnels-participating"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.netdb.activepeers",
    "router-netdb-activepeers"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.netdb.fastpeers",
    "router-netdb-fastpeers"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.netdb.highcapacitypeers",
    "router-netdb-highcapacitypeers"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.netdb.isreseeding",
    "router-netdb-isreseeding"
  );
  UpdateRouterInfoElementByID(
    "i2p.router.netdb.knownpeers",
    "router-netdb-knownpeers"
  );
}

var done = Echo(hello);
done.then(Done).catch(Done);

function Done(output) {
  function hide(elements) {
    elements = elements.length ? elements : [elements];
    for (var index = 0; index < elements.length; index++) {
      elements[index].style.display = "none";
    }
  }

  function unhide(elements) {
    elements = elements.length ? elements : [elements];
    for (var index = 0; index < elements.length; index++) {
      elements[index].style.display = "inline-block";
    }
  }

  console.log("(i2pcontrol) I2PControl connection tested,", output);
  if (output == hello) {
    var toopieLinks = document.querySelectorAll(".window-visit-toopie");
    unhide(toopieLinks);
  } else {
    var toopieLinks = document.querySelectorAll(".window-visit-toopie");
    hide(toopieLinks);
  }
  return output;
}