Function resolveGroupRefs

packages/plugin-eslint/src/lib/meta/groups.ts:135–168

(
  groupRules: Record<string, number>,
  rulesMap: Record<string, RuleData[]>,
)

}

export function resolveGroupRefs(
  groupRules: Record<string, number>,
  rulesMap: Record<string, RuleData[]>,
): { refs: Group['refs']; invalidRules: string[] } {
  return Object.entries(groupRules).reduce<{
    refs: Group['refs'];
    invalidRules: string[];
  }>(
    (acc, [rule, weight]) => {
      const matchedRuleIds = rule.endsWith('*')
        ? expandWildcardRules(rule, Object.keys(rulesMap))
        : [rule];

      const matchedRefs = matchedRuleIds.flatMap(ruleId => {
        const matchingRules = rulesMap[ruleId] || [];
        const weightPerRule = weight / matchingRules.length;

        return matchingRules.map(ruleData => ({
          slug: ruleToSlug(ruleData),
          weight: weightPerRule,
        }));
      });

      return {
        refs: [...acc.refs, ...matchedRefs],
        invalidRules:
          matchedRefs.length > 0
            ? acc.invalidRules
            : [...acc.invalidRules, rule],
      };
    },
    { refs: [], invalidRules: [] },
  );
}