package sdkserver

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

func TestSceneCommandsPreserveImportedSave(t *testing.T) {
	chdirRepoRootSDK(t)
	before, err := os.ReadFile("freesr-data.json")
	if err != nil {
		t.Fatal(err)
	}
	run := func(command string) bool {
		body, _ := json.Marshal(map[string]string{"command": command})
		w := httptest.NewRecorder()
		apiCommand(w, httptest.NewRequest(http.MethodPost, "/api/command", strings.NewReader(string(body))))
		var result struct {
			Success bool `json:"success"`
		}
		if err := json.Unmarshal(w.Body.Bytes(), &result); err != nil {
			t.Fatal(err)
		}
		return result.Success
	}
	persistentBefore, err := os.ReadFile("persistent")
	if err != nil {
		t.Fatal(err)
	}
	for _, invalid := range []string{"/teleport invalid", "/scene 0", "/teleport 123 bad", "/teleport 123 456 extra", "/clear lineup"} {
		if run(invalid) {
			t.Fatalf("accepted %s", invalid)
		}
		after, _ := os.ReadFile("persistent")
		if string(after) != string(persistentBefore) {
			t.Fatalf("invalid command %s wrote persistent", invalid)
		}
	}
	for _, command := range []string{"/teleport 123 456"} {
		if !run(command) {
			t.Fatalf("command failed: %s", command)
		}
		after, err := os.ReadFile("freesr-data.json")
		if err != nil || string(after) != string(before) {
			t.Fatalf("%s changed imported save", command)
		}
	}
	raw, err := os.ReadFile("persistent")
	if err != nil {
		t.Fatal(err)
	}
	var saved struct {
		Scene struct {
			PlaneID uint32 `json:"plane_id"`
			FloorID uint32 `json:"floor_id"`
		} `json:"scene"`
	}
	if err := json.Unmarshal(raw, &saved); err != nil {
		t.Fatal(err)
	}
	if saved.Scene.PlaneID != 123 || saved.Scene.FloorID != 456 {
		t.Fatalf("persistent changes missing: %+v", saved)
	}
}