obniz/obniz/libs/wscommand/WSCommand_AD.js

obniz sdk for javascript

const WSCommand = require('./WSCommand_.js');

class WSCommand_AD extends WSCommand {
  constructor() {
    super();
    this.module = 7;

    this._CommandInitNormalInterval = 0;
    this._CommandDeinit = 1;
    this._CommandNotifyValue = 2;
    this._CommandDoOnece = 3;
  }

  // Commands

  get(params, no) {
    let buf = new Uint8Array([no]);
    this.sendCommand(
      params.stream ? this._CommandInitNormalInterval : this._CommandDoOnece,
      buf
    );
  }

  deinit(params, no) {
    let buf = new Uint8Array([no]);
    this.sendCommand(this._CommandDeinit, buf);
  }

  parseFromJson(json) {
    for (let i = 0; i < 12; i++) {
      let module = json['ad' + i];
      if (module === undefined) {
        continue;
      }

      let schemaData = [
        { uri: '/request/ad/deinit', onValid: this.deinit },
        { uri: '/request/ad/get', onValid: this.get },
      ];
      let res = this.validateCommandSchema(schemaData, module, 'ad' + i, i);

      if (res.valid === 0) {
        if (res.invalidButLike.length > 0) {
          throw new Error(res.invalidButLike[0].message);
        } else {
          throw new this.WSCommandNotFoundError(`[ad${i}]unknown command`);
        }
      }
    }
  }

  notifyFromBinary(objToSend, func, payload) {
    if (func === this._CommandNotifyValue) {
      for (let i = 0; i + 2 < payload.byteLength; i += 3) {
        let value;
        if (payload[i + 1] & 0x80) {
          // 10bit mode
          value = ((payload[i + 1] & 0x7f) << 8) + payload[i + 2]; // 0x0000 to 0x3FF;
          value = (5.0 * value) / 1023.0; // 1023.0 == 0x3FF
          value = Math.round(value * 1000) / 1000;
        } else {
          // unsigned 100 times mode. (0 to 500 from 0v to 5v).
          value = (payload[i + 1] << 8) + payload[i + 2];
          value = value / 100.0;
        }
        objToSend['ad' + payload[i]] = value;
      }
    } else {
      super.notifyFromBinary(objToSend, func, payload);
    }
  }
}

module.exports = WSCommand_AD;