package app

// ---------------------------------------------------------------------
// Go resolver
// ---------------------------------------------------------------------

// EN: Go-based domain resolver pipeline used by routes update.
// EN: Handles cache reuse, concurrent DNS lookups, PTR labeling for static entries,
// EN: and returns deduplicated IP sets plus IP-to-label mapping artifacts.
// RU: Go-резолвер, используемый пайплайном обновления маршрутов.
// RU: Обрабатывает кэш, конкурентные DNS-запросы, PTR-лейблы для static entries
// RU: и возвращает дедуплицированный список IP и IP-to-label mapping.

// Empty by default: primary resolver pool comes from DNS upstream pool state.
// Optional fallback list can still be provided via RESOLVE_DNS_FALLBACKS env.
var resolverFallbackDNS []string

// ---------------------------------------------------------------------
// EN: `runResolverJob` runs the workflow for resolver job.
// RU: `runResolverJob` - запускает рабочий процесс для resolver job.
// ---------------------------------------------------------------------
func runResolverJob(opts ResolverOpts, logf func(string, ...any)) (resolverResult, error) {
	res := resolverResult{
		DomainCache: map[string]any{},
		PtrCache:    map[string]any{},
	}
	ctx := buildResolverJobContext(opts, logf)
	runResolverPipeline(&ctx, &res, logf)
	return res, nil
}

// ---------------------------------------------------------------------
// DNS resolve helpers moved to app/resolver/* (bridged via resolver_host_lookup_bridge.go)

// ---------------------------------------------------------------------
// DNS config + cache helpers moved to app/resolver/* (bridged via resolver_domain_cache_bridge.go + resolver_static_labels_bridge.go + resolver_dns_config_bridge.go)

// ---------------------------------------------------------------------
// EN: `saveJSON` saves json to persistent storage.
// RU: `saveJSON` - сохраняет json в постоянное хранилище.
// ---------------------------------------------------------------------