/// <summary>
/// Generates a model with the specified number of recipes and returns the recipe IDs in the optimal order.
/// </summary>
/// <param name="recipes">Number of recipes to generate</param>
/// <param name="scale">Scale indicating importance of optimal ingredient usage vs. user trend usage. 1 indicates ignore user trends, return most efficient set of recipes. 5 indicates ignore pantry and generate recipes user is most likely to rate high.</param>
/// <returns>An array up to size "recipes" containing recipes from DBSnapshot.</returns>
public Model Generate(int recipes, byte scale)
{
if (recipes > MAX_SUGGESTIONS)
{
throw new ArgumentException("Modeler can only generate " + MAX_SUGGESTIONS.ToString() + " recipes at a time.");
}
var temperature = 10000.0;
double deltaScore = 0;
const double absoluteTemperature = 0.00001;
totals = new Dictionary <IngredientNode, IngredientUsage>(IngredientNode.NextKey);
var currentSet = new RecipeNode[recipes]; //current set of recipes
var nextSet = new RecipeNode[recipes]; //set to compare with current
InitSet(currentSet); //Initialize with n random recipes
var score = GetScore(currentSet, scale); //Check initial score
var timer = new Stopwatch();
timer.Start();
while (temperature > absoluteTemperature)
{
nextSet = GetNextSet(currentSet); //Swap out a random recipe with another one from the available pool
deltaScore = GetScore(nextSet, scale) - score;
//if the new set has a smaller score (good thing)
//or if the new set has a higher score but satisfies Boltzman condition then accept the set
if ((deltaScore < 0) || (score > 0 && Math.Exp(-deltaScore / temperature) > random.NextDouble()))
{
nextSet.CopyTo(currentSet, 0);
score += deltaScore;
}
//cool down the temperature
temperature *= COOLING_RATE;
}
timer.Stop();
Log.InfoFormat("Generating set of {0} recipes took {1}ms.", recipes, timer.ElapsedMilliseconds);
return(new Model(currentSet, profile.Pantry, score));
}
/// <summary>
/// Swap out a random recipe with another one from the available pool
/// </summary>
RecipeNode[] GetNextSet(RecipeNode[] currentSet)
{
var rndIndex = random.Next(currentSet.Length);
var existingRecipe = currentSet[rndIndex];
RecipeNode newRecipe;
var timeout = 0;
while (true)
{
if (++timeout > 100) //We've tried 100 times to replace a recipe in this set, but cannot find anything that isn't already in this set.
{
throw new ImpossibleQueryException(); //TODO: If this is the only set of n which match that query, we've solved it - just return this set as final!
}
newRecipe = Fish();
if (newRecipe == existingRecipe)
{
continue;
}
var fFound = false;
for (var i = 0; i < currentSet.Length; i++)
{
if (newRecipe == currentSet[i])
{
fFound = true;
break;
}
}
if (!fFound)
{
break;
}
}
var retSet = new RecipeNode[currentSet.Length];
currentSet.CopyTo(retSet, 0);
retSet[rndIndex] = newRecipe;
return(retSet);
}
public Model(RecipeNode[] recipes, PantryItem[] pantry, double score)
{
this.recipeids = recipes.Select(r => r.RecipeId).ToArray();
this.pantry = pantry;
this.score = score;
}
/// <summary>
/// Judges a set of recipes based on a scale and its efficiency with regards to the current pantry. The lower the score, the better.
/// </summary>
double GetScore(RecipeNode[] currentSet, byte scale)
{
double wasted = 0; //Add 1.0 for ingredients that don't exist in pantry, add percentage of leftover otherwise
float avgRating = 0; //Average rating for all recipes in the set (0-4)
float tagPoints = 0; //Point for each tag that's one of our favorites
float tagTotal = 0; //Total number of tags in all recipes
float ingPoints = 0; //Point for each ing that's one of our favorites
float ingTotal = 0; //Total number of ingrediets in all recipes
for (var i = 0; i < currentSet.Length; i++)
{
var recipe = currentSet[i];
var ingredients = (IngredientUsage[]) recipe.Ingredients;
//Add points for any favorite tags this recipe uses
tagTotal += recipe.Tags.Length;
ingTotal += ingredients.Length;
for (var t = 0; t < recipe.Tags.Length; t++) //TODO: Use bitmasks for storing recipe tags and fav tags, then count bits
{
if (favTags[t])
{
tagPoints++;
}
}
byte realRating; //Real rating is the user's rating, else the public rating, else 3.
if (!ratings.TryGetValue(recipe, out realRating))
{
realRating = (recipe.Rating == 0) ? (byte) 3 : recipe.Rating; //if recipe has no ratings, use average rating of 3.
}
avgRating += (realRating - 1);
for (var j = 0; j < ingredients.Length; j++)
{
var ingredient = ingredients[j];
//Add points for any favorite ingredients this recipe uses
var ingKey = ingredient.Ingredient.Key;
for (var k = 0; k < favIngs.Length; k++) //For loop is actually faster than 5 "if" statements
{
if (favIngs[k] == ingKey)
{
ingPoints++;
break;
}
}
IngredientUsage curUsage;
var fContains = totals.TryGetValue(ingredient.Ingredient, out curUsage);
if (!fContains)
{
curUsage = new IngredientUsage();
curUsage.Amt = ingredient.Amt;
totals.Add(ingredient.Ingredient, curUsage);
}
else
{
curUsage.Amt += ingredient.Amt;
}
}
}
if (profile.Pantry != null) //If profile has a pantry, figure out how much of it is wasted
{
//For each pantry ingredient that we're not using, punish the score by MISSING_ING_PUNISH amount.
var pEnum = pantryAmounts.GetEnumerator();
while (pEnum.MoveNext())
{
if (!totals.ContainsKey(pEnum.Current.Key))
{
wasted += MISSING_ING_PUNISH;
}
}
var e = totals.GetEnumerator();
while (e.MoveNext())
{
var curKey = e.Current.Key;
float? have;
if (pantryAmounts.TryGetValue(curKey, out have)) //We have this in our pantry
{
if (!have.HasValue) //We have this in our pantry, but no amount is specified - So we "act" like we have whatever we need
{
continue;
}
if (!e.Current.Value.Amt.HasValue) //This recipe doesn't specify an amount - So we "act" like we use half of what we have
{
wasted += EMPTY_RECIPE_AMOUNT;
continue;
}
var need = e.Current.Value.Amt.Value;
var ratio = 1 - ((have.Value - need)/have.Value); //Percentage of how much you're using of what you have
if (ratio > 1) //If you need more than you have, add the excess ratio to the waste but don't go over the punishment for not having the ingredient at all
{
wasted += Math.Min(ratio, NEW_ING_PUNISH);
}
else
{
wasted += (1 - ratio);
}
}
else
{
wasted += NEW_ING_PUNISH; //For each ingredient this meal set needs that we don't have, increment by NEW_ING_PUNISH
}
}
}
double worstScore, trendScore, efficiencyScore;
if (profile.Pantry == null) //No pantry, efficiency is defined by the overlap of ingredients across recipes
{
efficiencyScore = totals.Keys.Count/ingTotal;
}
else //Efficiency is defined by how efficient the pantry ingredients are utilized
{
worstScore = ((totals.Keys.Count*NEW_ING_PUNISH) + (profile.Pantry.Length*MISSING_ING_PUNISH)); //Worst possible efficiency score
efficiencyScore = (wasted/worstScore);
}
avgRating /= currentSet.Length;
trendScore = 1 - ((((avgRating/4)*4) + (tagPoints/tagTotal) + (ingPoints/ingTotal))/6);
totals.Clear();
if (scale == 1)
return efficiencyScore;
else if (scale == 2)
return (efficiencyScore + efficiencyScore + trendScore)/3;
else if (scale == 3)
return (efficiencyScore + trendScore)/2;
else if (scale == 4)
return (efficiencyScore + trendScore + trendScore)/3;
else if (scale == 5)
return trendScore;
return 0;
}
/// <summary>
/// Initializes currentSet with random recipes from the available recipe pool.
/// </summary>
void InitSet(RecipeNode[] currentSet)
{
var inUse = new List<Guid>(currentSet.Length);
for (var i = 0; i < currentSet.Length; i++)
{
RecipeNode g;
var timeout = 0;
do
{
g = Fish();
if (++timeout > 100) //Ok we've tried 100 times to find a recipe not already in this set, there just isn't enough data to work with for this query
{
throw new ImpossibleQueryException(); //TODO: Maybe we can lower the demanded meals and return what we do have
}
} while (inUse.Contains(g.RecipeId));
inUse.Add(g.RecipeId);
currentSet[i] = g;
}
}
/// <summary>
/// Generates a model with the specified number of recipes and returns the recipe IDs in the optimal order.
/// </summary>
/// <param name="recipes">Number of recipes to generate</param>
/// <param name="scale">Scale indicating importance of optimal ingredient usage vs. user trend usage. 1 indicates ignore user trends, return most efficient set of recipes. 5 indicates ignore pantry and generate recipes user is most likely to rate high.</param>
/// <returns>An array up to size "recipes" containing recipes from DBSnapshot.</returns>
public Model Generate(int recipes, byte scale)
{
if (recipes > MAX_SUGGESTIONS)
{
throw new ArgumentException("Modeler can only generate " + MAX_SUGGESTIONS.ToString() + " recipes at a time.");
}
var temperature = 10000.0;
double deltaScore = 0;
const double absoluteTemperature = 0.00001;
totals = new Dictionary<IngredientNode, IngredientUsage>(IngredientNode.NextKey);
var currentSet = new RecipeNode[recipes]; //current set of recipes
var nextSet = new RecipeNode[recipes]; //set to compare with current
InitSet(currentSet); //Initialize with n random recipes
var score = GetScore(currentSet, scale); //Check initial score
var timer = new Stopwatch();
timer.Start();
while (temperature > absoluteTemperature)
{
nextSet = GetNextSet(currentSet); //Swap out a random recipe with another one from the available pool
deltaScore = GetScore(nextSet, scale) - score;
//if the new set has a smaller score (good thing)
//or if the new set has a higher score but satisfies Boltzman condition then accept the set
if ((deltaScore < 0) || (score > 0 && Math.Exp(-deltaScore/temperature) > random.NextDouble()))
{
nextSet.CopyTo(currentSet, 0);
score += deltaScore;
}
//cool down the temperature
temperature *= COOLING_RATE;
}
timer.Stop();
Log.InfoFormat("Generating set of {0} recipes took {1}ms.", recipes, timer.ElapsedMilliseconds);
return new Model(currentSet, profile.Pantry, score);
}
/// <summary>
/// Swap out a random recipe with another one from the available pool
/// </summary>
RecipeNode[] GetNextSet(RecipeNode[] currentSet)
{
var rndIndex = random.Next(currentSet.Length);
var existingRecipe = currentSet[rndIndex];
RecipeNode newRecipe;
var timeout = 0;
while (true)
{
if (++timeout > 100) //We've tried 100 times to replace a recipe in this set, but cannot find anything that isn't already in this set.
{
throw new ImpossibleQueryException(); //TODO: If this is the only set of n which match that query, we've solved it - just return this set as final!
}
newRecipe = Fish();
if (newRecipe == existingRecipe)
{
continue;
}
var fFound = false;
for (var i = 0; i < currentSet.Length; i++)
{
if (newRecipe == currentSet[i])
{
fFound = true;
break;
}
}
if (!fFound)
{
break;
}
}
var retSet = new RecipeNode[currentSet.Length];
currentSet.CopyTo(retSet, 0);
retSet[rndIndex] = newRecipe;
return retSet;
}
public Model(RecipeNode[] recipes, PantryItem[] pantry, double score)
{
this._recipeids = recipes.Select(r => { return r.RecipeId; }).ToArray();
this._pantry = pantry;
this._score = score;
}
/// <summary>
/// Judges a set of recipes based on a scale and its efficiency with regards to the current pantry. The lower the score, the better.
/// </summary>
public double GetScore(RecipeNode[] currentSet, byte scale)
{
double wasted = 0; // Add 1.0 for ingredients that don't exist in pantry, add percentage of leftover otherwise
float avgRating = 0; // Average rating for all recipes in the set (0-4)
float tagPoints = 0; // Point for each tag that's one of our favorites
float tagTotal = 0; // Total number of tags in all recipes
float ingPoints = 0; // Point for each ing that's one of our favorites
float ingTotal = 0; // Total number of ingrediets in all recipes
for (var i = 0; i < currentSet.Length; i++)
{
var recipe = currentSet[i];
var ingredients = (IngredientUsage[])recipe.Ingredients;
// Add points for any favorite tags this recipe uses
tagTotal += recipe.Tags.Length;
ingTotal += ingredients.Length;
for (var t = 0; t < recipe.Tags.Length; t++)
{
if (this.favTags[t])
{
tagPoints++;
}
}
byte realRating; // Real rating is the user's rating, else the public rating, else 3.
if (!this.ratings.TryGetValue(recipe, out realRating))
{
realRating = (recipe.Rating == 0) ? (byte)3 : recipe.Rating; // if recipe has no ratings, use average rating of 3.
}
avgRating += realRating - 1;
foreach (var ingredient in ingredients)
{
// Add points for any favorite ingredients this recipe uses
var ingKey = ingredient.Ingredient.Key;
if (this.favIngs.Any(t => t == ingKey))
{
ingPoints++;
}
IngredientUsage curUsage;
var fContains = this.totals.TryGetValue(ingredient.Ingredient, out curUsage);
if (!fContains)
{
curUsage = new IngredientUsage();
curUsage.Amt = ingredient.Amt;
this.totals.Add(ingredient.Ingredient, curUsage);
}
else
{
curUsage.Amt += ingredient.Amt;
}
}
}
// If profile has a pantry, figure out how much of it is wasted
if (this.profile.Pantry != null)
{
// For each pantry ingredient that we're not using, punish the score by MISSING_ING_PUNISH amount.
var pEnum = this.pantryAmounts.GetEnumerator();
while (pEnum.MoveNext())
{
if (!this.totals.ContainsKey(pEnum.Current.Key))
{
wasted += MissingIngPunish;
}
}
var e = this.totals.GetEnumerator();
while (e.MoveNext())
{
var curKey = e.Current.Key;
float? have;
// We have this in our pantry
if (this.pantryAmounts.TryGetValue(curKey, out have))
{
// We have this in our pantry, but no amount is specified - So we "act" like we have whatever we need
if (!have.HasValue)
{
continue;
}
// This recipe doesn't specify an amount - So we "act" like we use half of what we have
if (!e.Current.Value.Amt.HasValue)
{
wasted += EmptyRecipeAmount;
continue;
}
var need = e.Current.Value.Amt.Value;
var ratio = 1 - ((have.Value - need) / have.Value); // Percentage of how much you're using of what you have
// If you need more than you have, add the excess ratio to the waste but don't go over the punishment for not having the ingredient at all
if (ratio > 1)
{
wasted += Math.Min(ratio, NewIngPunish);
}
else
{
wasted += 1 - ratio;
}
}
else
{
wasted += NewIngPunish; // For each ingredient this meal set needs that we don't have, increment by NEW_ING_PUNISH
}
}
}
double efficiencyScore;
// No pantry, efficiency is defined by the overlap of ingredients across recipes
if (this.profile.Pantry == null)
{
efficiencyScore = totals.Keys.Count / ingTotal;
}
else
{
// Efficiency is defined by how efficient the pantry ingredients are utilized
double worstScore = (this.totals.Keys.Count * NewIngPunish) + (this.profile.Pantry.Length * MissingIngPunish);
efficiencyScore = wasted / worstScore;
}
avgRating /= currentSet.Length;
double trendScore = 1 - ((((avgRating / 4) * 4) + (tagPoints / tagTotal) + (ingPoints / ingTotal)) / 6);
this.totals.Clear();
switch (scale)
{
case 1:
return efficiencyScore;
case 2:
return (efficiencyScore + efficiencyScore + trendScore) / 3;
case 3:
return (efficiencyScore + trendScore) / 2;
case 4:
return (efficiencyScore + trendScore + trendScore) / 3;
case 5:
return trendScore;
}
return 0;
}
/// <summary>
/// Generates a model with the specified number of recipes and returns the recipe IDs in the optimal order.
/// </summary>
/// <param name="recipes">Number of recipes to generate</param>
/// <param name="scale">Scale indicating importance of optimal ingredient usage vs. user trend usage. 1 indicates ignore user trends, return most efficient set of recipes. 5 indicates ignore pantry and generate recipes user is most likely to rate high.</param>
/// <returns>An array up to size "recipes" containing recipes from DBSnapshot.</returns>
public Model Generate(int recipes, byte scale)
{
if (recipes > MaxSuggestions)
{
throw new ArgumentException("Modeler can only generate " + MaxSuggestions + " recipes at a time.");
}
var temperature = 10000.0;
const double AbsoluteTemperature = 0.00001;
this.totals = new Dictionary<IngredientNode, IngredientUsage>(IngredientNode.NextKey);
var currentSet = new RecipeNode[recipes]; // current set of recipes
this.InitSet(currentSet); // Initialize with n random recipes
var score = this.GetScore(currentSet, scale); // Check initial score
var timer = new Stopwatch();
timer.Start();
while (temperature > AbsoluteTemperature)
{
var nextSet = this.GetNextSet(currentSet); // set to compare with current
var deltaScore = this.GetScore(nextSet, scale) - score;
// if the new set has a smaller score (good thing)
// or if the new set has a higher score but satisfies Boltzman condition then accept the set
if ((deltaScore < 0) || (score > 0 && Math.Exp(-deltaScore / temperature) > this.random.NextDouble()))
{
nextSet.CopyTo(currentSet, 0);
score += deltaScore;
}
// cool down the temperature
temperature *= CoolingRate;
}
timer.Stop();
Log.InfoFormat("Generating set of {0} recipes took {1}ms.", recipes, timer.ElapsedMilliseconds);
return new Model(currentSet, this.profile.Pantry, score);
}
/// <summary>
/// Judges a set of recipes based on a scale and its efficiency with regards to the current pantry. The lower the score, the better.
/// </summary>
private double GetScore(RecipeNode[] currentSet, byte scale)
{
double wasted = 0; // Add 1.0 for ingredients that don't exist in pantry, add percentage of leftover otherwise
float averageRating = 0; // Average rating for all recipes in the set (0-4)
float tagPoints = 0; // Point for each tag that's one of our favorites
float tagTotal = 0; // Total number of tags in all recipes
float ingredientPoints = 0; // Point for each ingredient that's one of our favorites
float ingredientTotal = 0; // Total number of ingrediets in all recipes
for (var i = 0; i < currentSet.Length; i++)
{
var recipe = currentSet[i];
var ingredients = (IngredientUsage[])recipe.Ingredients;
// Add points for any favorite tags this recipe uses
tagTotal += recipe.Tags.Length;
ingredientTotal += ingredients.Length;
// TODO: Use bitmasks for storing recipe tags and fav tags, then count bits
for (int tag = 0; tag < recipe.Tags.Length; tag++)
{
if (this.favoriteTags[tag])
{
tagPoints++;
}
}
// Real rating is the user's rating, else the public rating, else 3.
byte realRating;
if (!this.ratings.TryGetValue(recipe, out realRating))
{
// if recipe has no ratings, use average rating of 3.
realRating = (recipe.Rating == 0) ? (byte)3 : recipe.Rating;
}
averageRating += realRating - 1;
for (var j = 0; j < ingredients.Length; j++)
{
var ingredient = ingredients[j];
// Add points for any favorite ingredients this recipe uses
var ingredientKey = ingredient.Ingredient.Key;
for (var key = 0; key < this.favoriteIngredients.Length; key++)
{
if (this.favoriteIngredients[key] == ingredientKey)
{
ingredientPoints++;
break;
}
}
IngredientUsage currentUsage;
bool fContains = this.totals.TryGetValue(ingredient.Ingredient, out currentUsage);
if (!fContains)
{
currentUsage = new IngredientUsage();
currentUsage.Amount = ingredient.Amount;
this.totals.Add(ingredient.Ingredient, currentUsage);
}
else
{
currentUsage.Amount += ingredient.Amount;
}
}
}
// If profile has a pantry, figure out how much of it is wasted
if (this.profile.Pantry != null)
{
// For each pantry ingredient that we're not using, punish the score by MissingIngredientPunish amount.
var pantryEnumerator = this.pantryAmounts.GetEnumerator();
while (pantryEnumerator.MoveNext())
{
if (!this.totals.ContainsKey(pantryEnumerator.Current.Key))
{
wasted += MissingIngredientPunish;
}
}
var enumerator = this.totals.GetEnumerator();
while (enumerator.MoveNext())
{
var currentKey = enumerator.Current.Key;
float? haveAmount;
// We have this in our pantry
if (this.pantryAmounts.TryGetValue(currentKey, out haveAmount))
{
// We have this in our pantry, but no amount is specified - So we "act" like we have whatever we need
if (!haveAmount.HasValue)
{
continue;
}
// This recipe doesn't specify an amount - So we "act" like we use half of what we have
if (!enumerator.Current.Value.Amount.HasValue)
{
wasted += EmptyRecipeAmount;
continue;
}
float needAmount = enumerator.Current.Value.Amount.Value;
// Percentage of how much you're using of what you have
float ratio = 1 - ((haveAmount.Value - needAmount) / haveAmount.Value);
// If you need more than you have, add the excess ratio to the waste but don't go over the punishment for not having the ingredient at all
if (ratio > 1)
{
wasted += Math.Min(ratio, NewIngredientPunish);
}
else
{
wasted += 1 - ratio;
}
}
else
{
// For each ingredient this meal set needs that we don't have, increment by NewIngredientPunish
wasted += NewIngredientPunish;
}
}
}
double worstScore;
double trendScore;
double efficiencyScore;
// No pantry, efficiency is defined by the overlap of ingredients across recipes
if (this.profile.Pantry == null)
{
efficiencyScore = this.totals.Keys.Count / ingredientTotal;
}
else
{
// Efficiency is defined by how efficient the pantry ingredients are utilized
worstScore =
this.totals.Keys.Count * NewIngredientPunish +
this.profile.Pantry.Length * MissingIngredientPunish; // Worst possible efficiency score
efficiencyScore = wasted / worstScore;
}
averageRating /= currentSet.Length;
trendScore = 1 - ((averageRating + tagPoints / tagTotal + ingredientPoints / ingredientTotal) / 6);
this.totals.Clear();
switch (scale)
{
case 1:
return efficiencyScore;
case 2:
return (efficiencyScore + efficiencyScore + trendScore) / 3;
case 3:
return (efficiencyScore + trendScore) / 2;
case 4:
return (efficiencyScore + trendScore + trendScore) / 3;
case 5:
return trendScore;
default:
return 0;
}
}
/// <summary>
/// Finds a random recipe in the available recipe pool
/// </summary>
/// <returns></returns>
private RecipeNode Fish()
{
RecipeNode recipeNode = null;
// No pantry, fish through Recipe index
if (this.pantryIngredients == null)
{
var tag = (this.allowedTags == null) ? this.random.Next(Enum.GetNames(typeof(RecipeTag)).Length) : (int)this.allowedTags[this.random.Next(this.allowedTags.Length)];
var recipesByTag = this.db.FindRecipesByTag(tag);
// Nothing in that tag
if (recipesByTag == null || recipesByTag.Length == 0)
{
return(Fish());
}
var rnd = this.random.Next(recipesByTag.Length);
recipeNode = recipesByTag[rnd];
}
else
{
// Fish through random pantry ingredient
var rndIng = this.random.Next(this.pantryIngredients.Length);
var ingNode = this.pantryIngredients[rndIng];
RecipeNode[] recipes;
if (this.allowedTags != null && this.allowedTags.Length > 0)
{
// Does this ingredient have any allowed tags?
if (!this.allowedTags.Intersect(ingNode.AvailableTags).Any())
{
return(this.Fish()); // No - Find something else
}
// Pick random tag from allowed tags (since this set is smaller, better to guess an available tag)
while (true)
{
var t = this.random.Next(this.allowedTags.Length); // NOTE: Next will NEVER return MaxValue, so we don't subtract 1 from Length!
var rndTag = this.allowedTags[t];
recipes = ingNode.RecipesByTag[(int)rndTag] as RecipeNode[];
if (recipes != null)
{
break;
}
}
}
else
{
// Just pick a random available tag
var rndTag = this.random.Next(ingNode.AvailableTags.Length);
var tag = ingNode.AvailableTags[rndTag];
recipes = ingNode.RecipesByTag[(int)tag] as RecipeNode[];
}
if (recipes != null)
{
var rndRecipe = this.random.Next(recipes.Length);
recipeNode = recipes[rndRecipe];
}
}
// If there's a blacklist, make sure no ingredients are blacklisted otherwise try again
if (this.ingBlacklist != null)
{
if (recipeNode != null)
{
var ingredients = (IngredientUsage[])recipeNode.Ingredients;
for (var i = 0; i < ingredients.Length; i++)
{
if (this.ingBlacklist.Contains(ingredients[i].Ingredient))
{
return(this.Fish());
}
}
}
}
// Discard if this recipe is to be avoided
if (recipeNode != null && (this.profile.AvoidRecipe.HasValue && this.profile.AvoidRecipe.Value.Equals(recipeNode.RecipeId)))
{
return(this.Fish());
}
return(recipeNode);
}