#endregion // Flags

        #region Collections

        public ObservableCollection<Reagent> Reagents { get; } = new();

        public ObservableCollection<GeneratorRecipe> AllRecipes { get; } = new();

        #endregion // Collections

        private readonly RecipeGenerator _generator;

        private DateTime _lastSave = DateTime.Now;

        private readonly PlayerProfile _profile;

        private uint _minConcentration;

        private readonly ConcurrentQueue<PaintRecipe> _pendingNewRecipes = new();

        private volatile bool _updatesAvailable;

        private readonly DispatcherTimer _updateTimer;

        private bool _ribbonMode;

        private bool _unsavedRecipes;

        private bool _saving;

        public RecipeGeneratorViewModel()

        {

            List<string> reagentNames = ReagentService.Names;

            foreach (string name in reagentNames)

            {

                Reagents.Add(ReagentService.GetReagent(name));

            }

        {

            IsInProgress = true;

            IsRunning = true;

            ReagentService.SaveProfileReagents(_profile.ReagentFile);

            SaveSettings(_ribbonMode ? "Ribbon" : "Paint");

            _updateTimer.Start();

            SelectedView = 1;

            _generator.CloseLog();

            SettingsService.Get("Generator.Logging", out bool logGenerator, false);

            if (logGenerator)

            {

                string logDir = DesertPaintCodex.Util.FileUtils.AppDataPath;

                _generator.Log = System.IO.Path.Combine(logDir, "recipe_generator_log.txt");

            }

            _generator.BeginRecipeGeneration(

                _minConcentration, 

                (uint)MaxConcentration, 

                1, 

                (uint)MaxReagents, 

                (uint)FullQuantityDepth, 

                (uint)FullQuantity);

        }

        public void End()

        {

            IsPaused     = false;

            IsRunning    = false;

            IsInProgress = false;

            _updateTimer.Stop();

        public void Resume()

        {

            IsPaused  = false;

            IsRunning = true;

            _updateTimer.Start();

            SelectedView = 1;

            _generator.CloseLog();

            SettingsService.Get("Generator.Logging", out bool logGenerator, false);

            if (logGenerator)

            {

                string logDir = DesertPaintCodex.Util.FileUtils.AppDataPath;

                _generator.Log = System.IO.Path.Combine(logDir, "recipe_generator_log.txt");

            }

            _generator.ResumeRecipeGeneration();

        }

        public async Task Clear()

        {

            bool result = await ShowYesNoBox("Clear Recipes", "Are you sure you want to clear your recipes?");

            if (result)

            {

                CanClear = false;

                if (_ribbonMode)

                {

                    _profile.ClearRibbonRecipes();

                }

                else

                {

            AllRecipes.Clear();

            foreach (PaintColor color in PaletteService.Colors)

            {

                GeneratorRecipe genRecipe = new(color);

                if (recipes.TryGetValue(color.Name, out PaintRecipe? recipe)) //  && recipe.IsValidForConcentration(minConcentration)) // This check is redundant, since they're checked when loading.

                {

                    genRecipe.DraftRecipe(recipe);

                }

                AllRecipes.Add(genRecipe);

            }

        }

        #region Event Handlers

        private void OnProgress(object? sender, EventArgs args)

        {

            _updatesAvailable = true;

        }

        private void OnNewRecipe(object? sender, NewRecipeEventArgs args)

        {

            PaintRecipe recipe = new(args.Recipe);

            _pendingNewRecipes.Enqueue(recipe);

            _updatesAvailable = true;

        }

        private void OnGeneratorStopped(object? sender, EventArgs args)

        {

            if (_saving)

            {

                SaveState();

                _generator.ResumeRecipeGeneration();

                _lastSave = DateTime.Now;

                _saving = false;

                return;

            }

            _generator.FlushLog();

            if (IsPaused)

            {

                SaveState();

                _generator.CloseLog();

            }

            End();

            _generator.CloseLog();

        }

        private void Update(object? sender, EventArgs e)

        {

            if (!_updatesAvailable) return;

            if (_saving) return;

            _updatesAvailable = false;

            DateTime now = DateTime.Now;

            // Update test count.

            // Pull in new recipes.

            if (!_pendingNewRecipes.IsEmpty)

            {

                GeneratorRecipe? lastRecipe = null;

                while (_pendingNewRecipes.TryDequeue(out PaintRecipe? newRecipe))

                {

                    string recipeColor = PaletteService.FindNearest(newRecipe.ReactedColor);

                    foreach (GeneratorRecipe recipe in AllRecipes)

                    {

                        if (recipe.Color.Name != recipeColor) continue;

                        recipe.DraftRecipe(newRecipe);

                        lastRecipe = recipe;

                        if (_ribbonMode)

                        {

                            _profile.SetRibbonRecipe(recipeColor, newRecipe);

                // If at least one recipe was processed, let's check to see if it's time to save, and

                // highlight that recipe.

                if (lastRecipe != null)

                {

                    _unsavedRecipes = true;

                    MostRecentRecipe = lastRecipe;

                    MostRecentTime = now;

                }

            }

            // Save if it is time.

            if (!((now - _lastSave).TotalMilliseconds > SaveInterval)) return;

            if (_unsavedRecipes)

            {

                _profile.SaveRecipes();

                _unsavedRecipes = false;

            }

        }

        #endregion

        private void SavePaintSettings()

        {

            SaveSettings("Paint");

        }

        private void LoadPaintSettings()

        {

            LoadSettings("Paint", 5, 20, 20, 4);

        }

        private void SaveRibbonSettings()