/**
 * Array of all ESLint disable directive types. Used to identify and parse
 * ESLint disable comments in source code.
 */
var eslintDisableDirectives = [
  'eslint-disable',
  'eslint-enable',
  'eslint-disable-line',
  'eslint-disable-next-line',
]
/**
 * Parses an ESLint disable comment to extract the directive type and affected
 * rules.
 *
 * Analyzes comment text to determine if it contains an ESLint disable directive
 * and which rules are affected. Returns null if the comment is not a valid
 * ESLint disable directive.
 *
 * @example
 *
 * ```ts
 * getEslintDisabledRules('eslint-disable')
 * // Returns: { eslintDisableDirective: 'eslint-disable', rules: 'all' }
 * ```
 *
 * @example
 *
 * ```ts
 * getEslintDisabledRules('eslint-disable-next-line no-console, no-alert')
 * // Returns: {
 * //   eslintDisableDirective: 'eslint-disable-next-line',
 * //   rules: ['no-console', 'no-alert']
 * // }
 * ```
 *
 * @example
 *
 * ```ts
 * getEslintDisabledRules('regular comment')
 * // Returns: null
 * ```
 *
 * @param comment - Comment text to parse (without comment delimiters).
 * @returns Object containing directive type and affected rules, or null if not
 *   a disable comment.
 */
function getEslintDisabledRules(comment) {
  for (let eslintDisableDirective of eslintDisableDirectives) {
    let disabledRules = getEslintDisabledRulesByType(
      comment,
      eslintDisableDirective,
    )
    if (disabledRules) {
      return {
        eslintDisableDirective,
        rules: disabledRules,
      }
    }
  }
  return null
}
/**
 * Extracts disabled rules from a comment for a specific ESLint directive type.
 *
 * Attempts to parse the comment as the specified ESLint disable directive.
 * Returns the list of disabled rules if the comment matches the directive,
 * 'all' if no specific rules are mentioned (global disable), or null if the
 * comment doesn't match the directive pattern.
 *
 * @example
 *
 * ```ts
 * getEslintDisabledRulesByType('eslint-disable', 'eslint-disable')
 * // Returns: 'all'
 * ```
 *
 * @example
 *
 * ```ts
 * getEslintDisabledRulesByType(
 *   'eslint-disable-line rule1, rule2',
 *   'eslint-disable-line',
 * )
 * // Returns: ['rule1', 'rule2']
 * ```
 *
 * @example
 *
 * ```ts
 * getEslintDisabledRulesByType(
 *   'eslint-disable-line rule1',
 *   'eslint-disable-next-line',
 * )
 * // Returns: null (wrong directive type)
 * ```
 *
 * @param comment - Comment text to parse.
 * @param eslintDisableDirective - Specific directive type to match against.
 * @returns Array of rule names, 'all' for global disable, or null if no match.
 */
function getEslintDisabledRulesByType(comment, eslintDisableDirective) {
  let trimmedCommentValue = comment.trim()
  if (eslintDisableDirective === trimmedCommentValue) {
    return 'all'
  }
  let regexp = new RegExp(String.raw`^${eslintDisableDirective} ((?:.|\s)*)$`)
  let disableRulesMatchValue = trimmedCommentValue.match(regexp)?.[1]
  if (!disableRulesMatchValue) {
    return null
  }
  return disableRulesMatchValue
    .split(',')
    .map(rule => rule.trim())
    .filter(rule => !!rule)
}
export { getEslintDisabledRules }