using System.ComponentModel.DataAnnotations;

namespace Lagerbestand.Models;

/// <summary>
/// Represents a label that can be attached to Kanban tasks
/// </summary>
public class KanbanLabel
{
    public Guid Id { get; set; } = Guid.NewGuid();

    [Required]
    [MaxLength(50)]
    public string Name { get; set; } = string.Empty;

    /// <summary>
    /// Hex color code for the label (e.g., "#FF5733")
    /// </summary>
    [Required]
    [MaxLength(7)]
    public string Color { get; set; } = "#6B7280";

    /// <summary>
    /// Optional description for the label
    /// </summary>
    [MaxLength(200)]
    public string? Description { get; set; }

    /// <summary>
    /// Display order for labels
    /// </summary>
    public int SortOrder { get; set; }

    public bool IsActive { get; set; } = true;

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

    // Navigation properties
    public virtual ICollection<KanbanTaskLabel> TaskLabels { get; set; } = new List<KanbanTaskLabel>();
    public virtual ICollection<KanbanTaskTemplateLabel> TemplateLabels { get; set; } = new List<KanbanTaskTemplateLabel>();
}

/// <summary>
/// Predefined label colors for easy selection
/// </summary>
public static class KanbanLabelColors
{
    public static readonly Dictionary<string, string> Presets = new()
    {
        { "Rot", "#EF4444" },
        { "Orange", "#F97316" },
        { "Gelb", "#EAB308" },
        { "Grün", "#22C55E" },
        { "Türkis", "#14B8A6" },
        { "Blau", "#3B82F6" },
        { "Indigo", "#6366F1" },
        { "Violett", "#8B5CF6" },
        { "Pink", "#EC4899" },
        { "Grau", "#6B7280" }
    };
}