package sdkserver

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"os"
	"strings"
	"testing"
)

func TestTeleportPersistsLocationAndReportsWriteFailure(t *testing.T) {
	chdirRepoRootSDK(t)
	body := `{"plane_id":20411,"floor_id":20411001,"entry_id":2041101,"x":123,"y":-456,"z":789,"rot_y":321}`
	invoke := func() map[string]any {
		t.Helper()
		w := httptest.NewRecorder()
		apiTeleport(w, httptest.NewRequest(http.MethodPost, "/api/teleport", strings.NewReader(body)))
		var result map[string]any
		if err := json.Unmarshal(w.Body.Bytes(), &result); err != nil {
			t.Fatal(err)
		}
		return result
	}
	if result := invoke(); result["status"] != float64(200) {
		t.Fatalf("save response: %v", result)
	}
	raw, err := os.ReadFile("persistent")
	if err != nil {
		t.Fatal(err)
	}
	var saved struct {
		Scene struct {
			FloorID uint32 `json:"floor_id"`
		}
		Position struct {
			X int32 `json:"x"`
			Y int32 `json:"y"`
		}
	}
	if err := json.Unmarshal(raw, &saved); err != nil {
		t.Fatal(err)
	}
	if saved.Scene.FloorID != 20411001 || saved.Position.X != 123 || saved.Position.Y != -456 {
		t.Fatalf("saved location: %+v", saved)
	}
	if err := os.WriteFile("persistent", []byte("invalid json"), 0600); err != nil {
		t.Fatal(err)
	}
	if result := invoke(); result["status"] != float64(500) {
		t.Fatalf("expected save failure, got %v", result)
	}
	raw, _ = os.ReadFile("persistent")
	if string(raw) != "invalid json" {
		t.Fatalf("invalid save was overwritten: %q", raw)
	}
}