using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace Lagerbestand.Models;

/// <summary>
/// Represents a vehicle owned by a customer.
/// A customer can have multiple vehicles, each with their own tire stacks.
/// </summary>
public class Vehicle
{
    [Key]
    public Guid Id { get; set; } = Guid.NewGuid();

    /// <summary>
    /// The customer who owns this vehicle
    /// </summary>
    public Guid CustomerId { get; set; }

    [ForeignKey(nameof(CustomerId))]
    public Customer? Customer { get; set; }

    /// <summary>
    /// Vehicle manufacturer (e.g., "BMW", "Mercedes", "VW")
    /// </summary>
    [Required]
    [MaxLength(100)]
    public string Make { get; set; } = string.Empty;

    /// <summary>
    /// Vehicle model (e.g., "3er", "C-Klasse", "Golf")
    /// </summary>
    [MaxLength(100)]
    public string? Model { get; set; }

    /// <summary>
    /// Tire size for this vehicle (e.g., "225/45 R17")
    /// </summary>
    [Required]
    [MaxLength(50)]
    public string TireSize { get; set; } = string.Empty;

    /// <summary>
    /// Additional notes about the vehicle
    /// </summary>
    [MaxLength(500)]
    public string? Notes { get; set; }

    /// <summary>
    /// Whether this is the customer's primary/default vehicle
    /// </summary>
    public bool IsPrimary { get; set; }

    /// <summary>
    /// Whether the vehicle is active (not deleted)
    /// </summary>
    public bool IsActive { get; set; } = true;

    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

    public DateTime? UpdatedAt { get; set; }

    /// <summary>
    /// Navigation property for tire stacks stored for this vehicle
    /// </summary>
    public ICollection<TireStack> TireStacks { get; set; } = new List<TireStack>();

    /// <summary>
    /// Display name combining make, model, and tire size
    /// </summary>
    [NotMapped]
    public string DisplayName
    {
        get
        {
            var name = Make;
            if (!string.IsNullOrEmpty(Model))
                name += $" {Model}";
            if (!string.IsNullOrEmpty(TireSize))
                name += $" ({TireSize})";
            return name;
        }
    }

    /// <summary>
    /// Short display showing just make (for compact views)
    /// </summary>
    [NotMapped]
    public string ShortName => !string.IsNullOrEmpty(Model)
        ? $"{Make} {Model}"
        : Make;
}