Models.cs

using System.Text.Json.Serialization;

namespace FMPReceiptPrinter;

public sealed class ReceiptTemplate
{
    public string Name { get; set; } = "Default";
    public string BusinessName { get; set; } = "";
    public string Proprietor { get; set; } = "";
    public string Address { get; set; } = "";
    public string Contact { get; set; } = "";
    public string LogoFile { get; set; } = "";
    public string AccentColor { get; set; } = "#087EAF";
    public int ItemRows { get; set; } = 7;
}

public sealed class ReceiptItem
{
    public decimal Quantity { get; set; }
    public string Description { get; set; } = "";
    public decimal UnitPrice { get; set; }
    [JsonIgnore] public decimal Amount => Quantity * UnitPrice;
}

public sealed class ReceiptData
{
    public int ReceiptNumber { get; set; } = 1;
    public DateTime Date { get; set; } = DateTime.Today;
    public string Customer { get; set; } = "";
    public string Address { get; set; } = "";
    public string Terms { get; set; } = "7 Days";
    public DateTime DueDate { get; set; } = DateTime.Today.AddDays(7);
    public List<ReceiptItem> Items { get; set; } = [];
    public decimal DeliveryFee { get; set; }
    public string PreparedBy { get; set; } = "";
    public bool UseESignature { get; set; }
    public string SignatureFile { get; set; } = "";
    public string Notes { get; set; } = "";
    [JsonIgnore] public decimal Subtotal => Items.Sum(x => x.Amount);
    [JsonIgnore] public decimal Total => Subtotal + DeliveryFee;
}

public sealed class AppState
{
    public int LastReceiptNumber { get; set; }
    public string LastTemplate { get; set; } = "";
}

public enum ReceiptSlot { TopLeft, TopRight, BottomLeft, BottomRight }