Update GaCy-GO

internal/sdkserver/api_aha_help.go

@@ -0,0 +1,47 @@
+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})
+}