package interview

import "tutor/internal/workflows"

var questionPrompts = map[string]map[string]string{
	"ko": {
		"backend-http-idempotency":   "HTTP 메서드가 멱등성을 가지려면 어떤 조건이 필요하며, 재시도 시 왜 중요한가요?",
		"backend-db-index-tradeoff":  "데이터베이스 인덱스를 추가하면 API가 어떻게 개선되며, 어떤 트레이드오프가 발생할 수 있나요?",
		"backend-cache-invalidation": "API 응답을 캐싱할지 어떻게 결정하며, 오래된 데이터는 어떻게 처리하나요?",
	},
	"en": {
		"backend-http-idempotency":   "What makes an HTTP method idempotent, and why does that matter for retries?",
		"backend-db-index-tradeoff":  "When would adding a database index improve an API, and what tradeoffs can it introduce?",
		"backend-cache-invalidation": "How would you decide whether to cache an API response, and how would you handle stale data?",
	},
}

func BackendDeveloperQuestions(lang string) []Question {
	if lang == "" {
		lang = "en"
	}
	base := []Question{
		{
			ID: "backend-http-idempotency",
			Concepts: []workflows.ConceptRef{
				{ID: "http-idempotency", Label: "HTTP idempotency", Track: BackendDeveloperTrack},
			},
		},
		{
			ID: "backend-db-index-tradeoff",
			Concepts: []workflows.ConceptRef{
				{ID: "database-indexes", Label: "Database indexes", Track: BackendDeveloperTrack},
			},
		},
		{
			ID: "backend-cache-invalidation",
			Concepts: []workflows.ConceptRef{
				{ID: "cache-invalidation", Label: "Cache invalidation", Track: BackendDeveloperTrack},
			},
		},
	}
	for i := range base {
		if p, ok := questionPrompts[lang][base[i].ID]; ok {
			base[i].Prompt = p
		} else if p, ok := questionPrompts["en"][base[i].ID]; ok {
			base[i].Prompt = p
		}
	}
	return base
}