package placement

import libkg "haixun-backend/internal/library/knowledge"

// EffectiveExpandStrategy returns LLM when web search is required but no API key is configured.
func EffectiveExpandStrategy(research ResearchSettings) libkg.ExpandStrategy {
	strategy := libkg.ParseExpandStrategy(research.ExpandStrategy)
	if strategy.RequiresWebSearch() && MissingWebSearchKey(research) {
		return libkg.ExpandStrategyLLM
	}
	return strategy
}

func WebSearchAvailable(research ResearchSettings) bool {
	return !MissingWebSearchKey(research)
}