import { Socket } from 'net';

function ClientQuery() {
  this.state = 0; /* <0 Not connected | 1 Connecting | 2 Connected no auth | 3 Connected and auth | 4 Connection Failed> */
  let actions = this.actions = {};
  this.actionsLastCall = {};
  this.debug = true;
  this.onMessage = function (data) { };

  this.log = function (msg) {
    if (!this.debug) { console.log('TS3:', msg) }
  }

  this.parse = function (res) {
    let rawStrings = res.toString().split("|")
    let parsedObjects = [];
    rawStrings.forEach(function (str) {
      let tempobj = {};
      str.split('\n\r')[0].split(" ").forEach(function (vari) {
        if (vari.indexOf("=") > -1) {
          tempobj[vari.split("=")[0]] = vari.substring(vari.indexOf('=') + 1, vari.length).replaceAll("\\\\s", " ");
        }
      })
      if (rawStrings.length > 1) {
        parsedObjects.push(tempobj)
      } else {
        parsedObjects = tempobj;
      }
    }, this);
    return parsedObjects;
  }

  this.handleMessage = function (msg) {
    if (this.actions.hasOwnProperty(msg.toString().split(" ")[0])) {
      if (this.actionsLastCall[msg.toString().split(" ")[0]] != msg.toString()) {
        this.actionsLastCall[msg.toString().split(" ")[0]] = msg.toString();
        this.actions[msg.toString().split(" ")[0]](msg);
      }
    } else {
      this.onMessage(msg);
    }
  }.bind(this)

  this.notifyOn = function (action, args, callback) {
    if (this.actions[action] === undefined) {
      console.log('TS3: Register notify ' + action)
    } else if (this.actions[action] !== callback) {
      console.log('TS3: Change notify ' + action)
    }
    
    this.actions[action] = callback;
    this.send(`clientnotifyregister event=${action} ${args}`)
  }

  this.notifyOff = function (action, args) {
    console.log('TS3: Unregister notify ' + action)
    this.send(`clientnotifyunregister event=${action} ${args}`)
      .then(() => {
        this.actions[action] = undefined;
      })
  }

  this.request = function (data) {
    this.log('Request: ' + data)
    return new Promise(function (resolve, reject) {
      this.sock.write(data + '\n', 'utf8', (res) => {
        console.log('TS3: Sent: ' + data)

        let func = (data) => {
          if (data.toString() != 'error id=0 msg=ok\n\r') {
            resolve(data)
            this.sock.removeListener('data', func)
            this.sock.on('data', this.handleMessage)
          }
        }

        this.sock.removeListener('data', this.handleMessage)
        this.sock.on('data', func)
      })
    }.bind(this));
  }

  this.send = function (data) {
    this.log('Send: ' + data)
    this.sock.removeListener('data', this.handleMessage)
    this.sock.on('data', this.handleMessage)
    return new Promise(function (resolve, reject) {
      this.sock.write(data + '\n', 'utf8', (res) => {
        this.log('Sent: ' + data)
        resolve(res)
      })
    }.bind(this));
  }

  this.reInitActions = function () {
    let act = this.actions;
    Object.keys(act).forEach(function (key) {
      this.notifyOn(key, 'schandlerid=1', act[key])
    }.bind(this));
  }

  this.reconnects = 0;

  setInterval(() => {
    this.reconnects--;
  }, 1000);

  this.connect = function (host, port, apikey) {
    return new Promise(function (resolve, reject) {
      if (this.reconnects < 5) {
        this.reconnects++;
        this.state = 1;
        let sock = this.sock = new Socket();

        sock.connect(port, host);

        sock.on('connect', () => {
          this.state = 2;
          sock.setTimeout(0);
          this.log('connected');
          this.send(`auth apikey=${apikey}`)
            .then(() => {
              resolve(this)
              this.state = 3;
              setTimeout(() => {
                this.reInitActions(actions);
              }, 100);
            })
        });


        sock.on('close', () => {
          console.log('TS3: Socket closed, reopening..');
          sock.destroy();
          this.connect(host, port, apikey);
        });

        sock.on('data', this.handleMessage);
      } else {
        setTimeout(() => { this.connect(host, port, apikey) }, 3000);
      }
    }.bind(this));
  }
}

export default ClientQuery;