import init, { open_invite, handle_new_lox_credential, set_panic_hook } from "./pkg/lox_wasm.js";
let pubkeys = await request_pubkeys();
console.log(pubkeys);


let requested = await init().then(() => {
  set_panic_hook();
  let requested = request_open_invite().then((token) => {
    return open_invite(token);
  });
  return requested;
});
console.log("Got request and state "+requested);

let open_lox_cred = await init().then(() => {
  set_panic_hook();
  let cred = request_new_lox_credential(requested).then((response) => {
    return handle_new_lox_credential(requested, response, pubkeys);
  });
  return cred;
});
console.log("Got request and state "+requested);

function request_new_lox_credential(requested) {
  let req = JSON.parse(requested);
  console.log("Request? "+req.request);
  return new Promise((fulfill, reject) => {
    loxServerPostRequest("/openreq", req.request).then((response) => {
      console.log("Got new Lox Credential: " + response);
      fulfill(response);
      return;
    }).catch(() => {
      console.log("Error requesting new Lox credential from server");
      reject();
    });
  });
}

function request_open_invite() {
  return new Promise((fulfill, reject) => {
    loxServerGetRequest("/invite").then((response) => {
      console.log("Got invitation token: " + response.invite);
      fulfill(response.invite);
      return;
    }).catch(() => {
      console.log("Error requesting open invite from Lox server");
      reject();
    });
  });
}

function request_pubkeys() {
  return new Promise((fulfill, reject) => {
    loxServerGetRequest("/pubkeys").then((response) => {
      console.log("Got pubkeys: " + response);
      fulfill(JSON.parse(response));
      return;
    }).catch(() => {
      console.log("Error requesting open invite from Lox server");
      reject();
    });
  });
}

function loxServerGetRequest(data) {
  return new Promise((fulfill, reject) => {
    const xhr = new XMLHttpRequest();
    xhr.onreadystatechange = function() {
      if (xhr.DONE !== xhr.readyState) {
        return;
      }
      if (xhr.status !== 200) {
        console.log("Error. Status code: "+xhr.status);
        console.log(xhr);
        reject();
        return;
      }
      const response = JSON.parse(xhr.responseText);
      fulfill(response);
      return;
    };
    try {
      xhr.open('GET', "http://localhost:8001"+data);
    } catch (err) {
      console.log("Error connecting to lox bridge db");
      reject();
      return;
    }
    xhr.send();
  });
}

function loxServerPostRequest(data, payload) {
  return new Promise((fulfill, reject) => {
    const xhr = new XMLHttpRequest();
    xhr.onreadystatechange = function() {
      if (xhr.DONE !== xhr.readyState) {
        return;
      }
      if (xhr.status !== 200) {
        console.log("Error. Status code: "+xhr.status);
        console.log(xhr);
        reject();
        return;
      }
      const response = JSON.parse(xhr.responseText);
      console.log("Received: "+response);
      fulfill(response);
      return;
    };
    try {
      xhr.open('POST', "http://localhost:8001"+data, true)
      xhr.setRequestHeader("Content-Type", "application/json");
    } catch (err) {
      console.log("Error connecting to lox bridge db");
      reject();
      return;
    }
    xhr.send(JSON.stringify(payload));
  });
}

// The correct key should be matched against a public commit to the key to
// verify that the key issuer is in fact the correct Bridge Authority
function loxKeyRequest(key_type) {
  return new Promise((fulfull, reject) => {


  })
}