oneuptime/Scripts/TerraformProvider/Core/StringUtils.ts

export class StringUtils {
  static toPascalCase(str: string): string {
    return str
      .replace(/['`]/g, "") // Remove apostrophes and backticks
      .replace(/[-_\s]+(.)?/g, (_, char) => (char ? char.toUpperCase() : ""))
      .replace(/^[a-z]/, char => char.toUpperCase());
  }

  static toCamelCase(str: string): string {
    const pascalCase = this.toPascalCase(str);
    return pascalCase.charAt(0).toLowerCase() + pascalCase.slice(1);
  }

  static toSnakeCase(str: string): string {
    return str
      .replace(/['`]/g, "") // Remove apostrophes and backticks
      .replace(/([A-Z])/g, "_$1")
      .toLowerCase()
      .replace(/^_/, "")
      .replace(/[-\s]+/g, "_")
      .replace(/_+/g, "_"); // Replace multiple underscores with single underscore
  }

  static toKebabCase(str: string): string {
    return this.toSnakeCase(str).replace(/_/g, "-");
  }

  static toConstantCase(str: string): string {
    return this.toSnakeCase(str).toUpperCase();
  }

  static capitalize(str: string): string {
    return str.charAt(0).toUpperCase() + str.slice(1);
  }

  static sanitizeGoIdentifier(str: string): string {
    // Remove special characters including apostrophes and ensure it starts with a letter
    const sanitized = str.replace(/[^a-zA-Z0-9_]/g, "");
    return /^[a-zA-Z]/.test(sanitized) ? sanitized : `_${sanitized}`;
  }

  static escapeGoString(str: string): string {
    return str
      .replace(/\\/g, "\\\\")
      .replace(/"/g, '\\"')
      .replace(/\n/g, "\\n")
      .replace(/\r/g, "\\r")
      .replace(/\t/g, "\\t");
  }

  static pluralize(str: string): string {
    if (str.endsWith("y")) {
      return str.slice(0, -1) + "ies";
    }
    if (str.endsWith("s") || str.endsWith("sh") || str.endsWith("ch") || str.endsWith("x") || str.endsWith("z")) {
      return str + "es";
    }
    return str + "s";
  }

  static singularize(str: string): string {
    if (str.endsWith("ies")) {
      return str.slice(0, -3) + "y";
    }
    if (str.endsWith("es")) {
      return str.slice(0, -2);
    }
    if (str.endsWith("s") && !str.endsWith("ss")) {
      return str.slice(0, -1);
    }
    return str;
  }
}