using Meezi.Core.Entities;

namespace Meezi.Infrastructure.Data;

public enum MenuItemVisualKind
{
    Food,
    Drink
}

public static class MenuItemImageDefaults
{
    private static readonly HashSet<string> DrinkCategoryIds = new(StringComparer.Ordinal)
    {
        "cat_demo_drinks",
        "cat_demo_cold"
    };

    private static readonly string[] DrinkCategoryHints =
    [
        "drink", "cold", "coffee", "tea", "juice", "smoothie", "beverage", "bar",
        "نوشیدنی", "سرد", "گرم", "قهوه", "چای", "آبمیوه", "اسموتی", "مشروب", "بار"
    ];

    public static MenuItemVisualKind InferKind(string categoryId, string? categoryName = null)
    {
        if (DrinkCategoryIds.Contains(categoryId))
            return MenuItemVisualKind.Drink;

        var haystack = $"{categoryId} {categoryName}".ToLowerInvariant();
        if (DrinkCategoryHints.Any(h => haystack.Contains(h, StringComparison.Ordinal)))
            return MenuItemVisualKind.Drink;

        return MenuItemVisualKind.Food;
    }

    public static string GetDefaultImageUrl(MenuItemVisualKind kind)
        => kind == MenuItemVisualKind.Drink
            ? MenuImageManifest.GetDefaultDrinkImageUrl()
            : MenuImageManifest.GetDefaultFoodImageUrl();

    /// <summary>Remote https URL suitable for &lt;img src&gt; (excludes missing local uploads).</summary>
    public static bool IsUsableImageUrl(string? imageUrl) =>
        !string.IsNullOrWhiteSpace(imageUrl)
        && (imageUrl.StartsWith("https://", StringComparison.OrdinalIgnoreCase)
            || imageUrl.StartsWith("http://", StringComparison.OrdinalIgnoreCase));

    public static bool NeedsImageRepair(string? imageUrl) => !IsUsableImageUrl(imageUrl);

    public static string ResolveImageUrl(string itemId, string categoryId, string? categoryName)
    {
        var localOverride = MenuImageManifest.GetLocalImageOverride(itemId);
        if (!string.IsNullOrWhiteSpace(localOverride))
            return localOverride;

        var catalog = DemoMenuCatalog.Items.FirstOrDefault(i => i.Id == itemId);
        if (catalog is not null)
            return DemoMenuCatalog.ResolveItemImageUrl(catalog);

        return GetDefaultImageUrl(InferKind(categoryId, categoryName));
    }

    public static string ResolveDisplayImageUrl(MenuItem item) =>
        IsUsableImageUrl(item.ImageUrl)
            ? item.ImageUrl!
            : ResolveImageUrl(item.Id, item.CategoryId, item.Category?.Name);
}