makemkv-auto-rip/src/utils/validation.js

Automatically rips DVDs & Blu-rays using the MakeMKV console, then saves them to unique folders. It can be used from the command line or via a web interface, and is cross-platform. It is also containerized, so it can be run on any system with Docker insta

import { VALIDATION_CONSTANTS } from "../constants/index.js";

/**
 * Validation utilities for MakeMKV data
 */
export class ValidationUtils {
  /**
   * Validate MakeMKV file data output
   * @param {string} data - The raw output from MakeMKV
   * @returns {string|null} - Error message if validation fails, null if valid
   */
  static validateFileData(data) {
    if (!data || data.length === 0) {
      return "No data received from MakeMKV";
    }

    const lines = data.split("\n").filter((line) => line.trim().length > 0);
    if (lines.length === 0) {
      return "Invalid MakeMKV output format, the received content was empty";
    }

    // Check if at least one line contains valid TINFO data
    const hasTInfoLine = lines.some((line) => line.startsWith("TINFO:"));
    if (!hasTInfoLine) {
      return "Invalid MakeMKV output format, it may not have identified any titles";
    }

    return null;
  }

  /**
   * Validate MakeMKV drive data output
   * @param {string} data - The raw output from MakeMKV
   * @returns {string|null} - Error message if validation fails, null if valid
   */
  static validateDriveData(data) {
    if (!data || data.length === 0) {
      return "No drive data received from MakeMKV";
    }

    const lines = data.split("\n").filter((line) => line.trim().length > 0);
    if (lines.length === 0) {
      return "Invalid MakeMKV drive output format";
    }

    // Check if at least one line contains valid DRV data
    const hasDrvLine = lines.some((line) =>
      line.startsWith(VALIDATION_CONSTANTS.DRIVE_FILTER)
    );
    if (!hasDrvLine) {
      return "Invalid MakeMKV drive output format";
    }

    return null;
  }

  /**
   * Convert time array to seconds
   * @param {string[]} timeArray - Array of [hours, minutes, seconds]
   * @returns {number} - Total time in seconds
   */
  static getTimeInSeconds(timeArray) {
    if (!timeArray || !Array.isArray(timeArray) || timeArray.length < 3) {
      return 0;
    }
    return +timeArray[0] * 60 * 60 + +timeArray[1] * 60 + +timeArray[2];
  }

  /**
   * Check if the output contains a copy complete message
   * @param {string} data - The raw output from MakeMKV
   * @returns {boolean} - True if copy completed successfully
   */
  static isCopyComplete(data) {
    if (!data || typeof data !== "string") {
      return false;
    }
    const lines = data.split("\n");
    return lines.some(
      (line) =>
        line.startsWith(VALIDATION_CONSTANTS.COPY_COMPLETE_MSG) ||
        line.startsWith("Copy complete")
    );
  }
}