static void Main(string[] args)
{
Console.WriteLine("Lets Go shopping!\n");
#region CreatingObjects
List <Product> shoppingList = new List <Product>()
{
new Product("Oil", 9.78M, new DateTime(2020, 05, 28), "For Food"),
new Product("Tesla", 50000M, new DateTime(2100, 01, 01), "Best Electro Car"),
new Product("Pelmeni", 8.5M, new DateTime(2021, 11, 11), "Mtiuluri"),
new Product("Saliami", 15.36M, new DateTime(2022, 10, 27), "Beef")
};
shoppingList.Add(new Product("Tea", 6.55M, new DateTime(2016, 3, 3), "With Bergamot"));
Budget myBudget = new Budget(25.33M);
#endregion
#region Select
//Query
var expiredProducts = from item in shoppingList
where item.ExpDate < DateTime.Now
select item;
foreach (var item in expiredProducts)
{
Console.WriteLine($"{item.Name} Has Expired!");
}
#endregion
#region Where
var expired = shoppingList.Where(item => item.ExpDate < DateTime.Now);
foreach (var item in expired)
{
Console.WriteLine($"{item.Name} Has Expired!");
}
#endregion
#region Agregate
var allProductsNames = shoppingList
.Select(item => item.Name)
.Aggregate((a, b) => $"{a}, {b}");
Console.WriteLine($"My products : {allProductsNames}");
var totalPrice = shoppingList
.Select(item => item.Price)
.Sum();
var MaxPrice = shoppingList
.Select(item => item.Price)
.Max();
var MinPrice = shoppingList
.Select(item => item.Price)
.Min();
Console.WriteLine($"Max : ${MaxPrice}\nMin : ${MinPrice}\nTotal : ${totalPrice}\n");
#endregion
#region NewObject
var newList = shoppingList
.Select(item => new
{
Name = item.Name,
Desc = item.Description
})
.Where(item => item.Name.Equals("Tesla") || item.Name.Equals("Oil"))
.OrderByDescending(item => item.Name)
.ToList();
foreach (var item in newList)
{
Console.WriteLine($"{item.Name} -> {item.Desc}");
}
#endregion
#region What Can I buy
var available = shoppingList.Where(item => myBudget.CanBuy(item))
.Select(item => item.Name)
.Aggregate((pre, after) => $"{pre}, {after}");
Console.WriteLine($"You Can buy Individually : {available}");
#endregion
Console.ReadKey();
}
