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87 lines
3.0 KiB
87 lines
3.0 KiB
using System;
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using System.Collections.Generic;
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namespace Model
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{
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/// <summary>
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/// A Recipe collection is a group of recipe.<br/>
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/// It is instantiated with a new unique four digit id, where the first one is 2.
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/// </summary>
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public class RecipeCollection : BaseItem
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{
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/// <summary>
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/// This static atrribute stand for the creation of a new id. It is incremented each time a new RecipeCollection is instantiated.
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/// </summary>
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private static uint idIterator = 0;
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/// <summary>
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/// The main composent of a RecipeCollection. This contain the Recipes included in this collection.
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/// </summary>
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public List<Recipe> Collection { get; set; }
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public RecipeCollection(string description = "", List<Recipe>? collection = null)
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: base(idIterator + 2000, description)
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{
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if (idIterator == 1000) throw new OverflowException("id has reach the maximum value.");
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if (collection == null)
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Collection = new List<Recipe>();
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else
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Collection = collection;
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idIterator++;
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}
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public override string ToString()
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{
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return
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$"[ Class -RecipeCollection- ]\n\n" +
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$"\t.Id - {Id}\n" +
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$"\t.Description - {Description}\n" +
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$"______\n\n";
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}
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/// <summary>
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/// Overload the [] operator to access the Recipe directly without passing by the Collection.<br/>
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/// It use the identifier of the Recipe to get the item.
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/// </summary>
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/// <param name="id">The id of the Recipe</param>
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/// <returns></returns>
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public Recipe this[uint id]
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{
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get
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{
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foreach (Recipe r in this.Collection)
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{
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if (r.Id == id) return r;
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}
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throw new ArgumentNullException("The id given dosen't correspond to any recipes in the collection.");
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}
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}
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/// <summary>
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/// Overload of + operator to add a Recipe to a RecipeCollection.
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/// </summary>
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/// <param name="coll">The recipe collection where the recipe will be added</param>
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/// <param name="ri">The recipe to add</param>
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/// <returns>The recipe collection where the recipe is added.</returns>
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public static RecipeCollection operator + (RecipeCollection coll, Recipe ri)
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{
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coll.Collection.Add(ri); return coll;
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}
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/// <summary>
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/// Overload of - operator to remove a Recipe to a RecipeCollection.
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/// </summary>
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/// <param name="coll">The recipe collection where the recipe will be removed</param>
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/// <param name="ri">The recipe to remove</param>
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/// <returns>The recipe collection where the recipe is removed.</returns>
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public static RecipeCollection operator - (RecipeCollection coll, Recipe ri)
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{
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coll.Collection.Remove(ri); return coll;
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}
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}
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}
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