package api

import (
	"net/http"
	"time"
)

func handleHealth() http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		writeJSON(w, http.StatusOK, map[string]any{
			"status":      "ok",
			"server_time": time.Now().UTC().Format(time.RFC3339Nano),
		})
	}
}

func handleStatus(stores Stores) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		counts, _ := stores.Instructions.Counts()
		latest, _ := stores.Agents.Latest()
		cfg, _ := stores.Settings.Get()

		resp := map[string]any{
			"uptime_seconds":           int(time.Since(serverStartTime).Seconds()),
			"queue_pending":            counts.PendingCount,
			"queue_consumed":           counts.ConsumedCount,
			"agent_stale_after_seconds": cfg.AgentStaleAfterSeconds,
		}

		if latest != nil {
			isStale := time.Since(latest.LastSeenAt).Seconds() > float64(cfg.AgentStaleAfterSeconds)
			resp["agent"] = map[string]any{
				"agent_id":         latest.AgentID,
				"last_fetch_at":    latest.LastFetchAt.Format(time.RFC3339Nano),
				"last_result_type": latest.LastResultType,
				"is_stale":         isStale,
			}
		}

		writeJSON(w, http.StatusOK, resp)
	}
}