package sdkserver

import (
	"encoding/json"
	"gac-hkrpg-go/internal/common"
	"net/http"
)

func apiAhaHelp(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet && r.Method != http.MethodPost {
		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
		return
	}
	if r.Method == http.MethodPost {
		var body map[string]json.RawMessage
		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
			http.Error(w, "invalid JSON", http.StatusBadRequest)
			return
		}
		raw, ok := body["level"]
		var level *uint32
		if !ok || json.Unmarshal(raw, &level) != nil {
			http.Error(w, "level must be null or an unsigned integer", http.StatusBadRequest)
			return
		}
		if err := common.SaveAhaHelpLevel(level); err != nil {
			http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
	}
	levels, err := common.LoadAhaHelpLevels()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	selected, err := common.ReadAhaHelpLevel()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	data, err := common.LoadFreesrData()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	writeJSON(w, map[string]any{"status": 200, "level": selected, "levels": levels, "legacy_enabled": data.BattleConfig.EnableInvasionSupport})
}