import { Interface } from "./interface";
import * as fs from "fs";
// @ts-ignore
import * as writeFileQueue from "write-file-queue";

export class FileInterface implements Interface {
  private path: string;
  private writeFile: typeof fs.writeFile;

  constructor(path: string) {
    this.path = path;
    this.writeFile = writeFileQueue({
      retries: 10, // number of write attempts before failing
      waitTime: 200, // number of milliseconds to wait between write attempts
    });
  }

  getPrinterName(): string {
    return this.path;
  }

  async isPrinterConnected() {
    try {
      return fs.existsSync(this.path);
    } catch (error) {
      throw error;
    }
  }

  async execute(buffer: Uint8Array): Promise<void> {
    return new Promise((resolve, reject) => {
      this.writeFile(this.path, buffer, function (error) {
        if (error) {
          reject(error);
        } else {
          resolve();
        }
      });
    });
  }
}