protected override async Task Handle(UpdateRecipeRequest request, CancellationToken cancellationToken)
{
var recipeToUpdate = request.Recipe.Name;
var recipeVariation = _mapper.Map <RecipeVariation>(request.Recipe);
var existedRecipe = await _context.Recipes
.Include(r => r.Variations)
.FirstOrDefaultAsync(r => r.Name.Equals(recipeToUpdate))
.ConfigureAwait(false);
if (existedRecipe == null)
{
throw new InvalidOperationException($"Recipe \"{recipeToUpdate}\" doesn't exist.");
}
var existedVariation = existedRecipe.Variations
.FirstOrDefault(rv => rv.CreatedBy == recipeVariation.CreatedBy);
if (existedVariation == null)
{
throw new InvalidOperationException($"There is not recipe \"{recipeToUpdate}\" by current user. Please use Create method");
}
// TODO: update properties and merge ingredients
await _context.SaveChangesAsync().ConfigureAwait(false);
}
protected override async Task Handle(CreateRecipeRequest request, CancellationToken cancellationToken)
{
var recipeToCreate = _mapper.Map <Recipe>(request.Recipe);
var recipeVariation = _mapper.Map <RecipeVariation>(request.Recipe);
var existedRecipe = await _context.Recipes
.Include(r => r.Variations)
.FirstOrDefaultAsync(r => r.Name.Equals(recipeToCreate.Name))
.ConfigureAwait(false);
if (existedRecipe == null)
{
foreach (var ingredient in recipeVariation.Ingredients)
{
ingredient.RecipeVariation = recipeVariation;
}
var recipe = new Recipe
{
Name = recipeToCreate.Name,
Variations = new List <RecipeVariation>
{
recipeVariation
}
};
recipeVariation.Recipe = recipe;
_context.Recipes.Add(recipe);
}
else
{
// TODO: Throw error if such recipe variation already exists
recipeVariation.RecipeId = existedRecipe.Id;
existedRecipe.Variations.Add(recipeVariation);
}
await _context.SaveChangesAsync().ConfigureAwait(false);
}