using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Model { public interface IRecipeManager { RecipeCollection GetAllRecipes(); Recipe GetRecipeFromId(int id); RecipeCollection GetRecipeByTitle(string title); RecipeCollection GetRecipeByAuthor(string authorMail); RecipeCollection GetRecipesByPriorityOrder(Priority priority); bool AddRecipeToData(Recipe recipe); bool ModifyRecipeInData(Recipe recipe); } }