using System;
using System.Collections.Generic;
using AyCode.Utils.Extensions;
using Mango.Nop.Core.Utils;
using Nop.Core.Domain.Common;
using System.Diagnostics.CodeAnalysis;
using System.Linq;

namespace Mango.Nop.Core.Extensions;

public static class GenericAttributeExtensions
{
    public static TValue? GetValueOrNull<TValue>(this IEnumerable<GenericAttribute> src, string key) where TValue : struct
    {
        var ga = src.SingleOrDefault(x => x.Key == key);
        if (ga == null || ga.Value.IsNullOrWhiteSpace()) return null;

        return CommonHelper2.To<TValue>(ga.Value);
    }

    public static TValue GetValueOrDefault<TValue>(this IEnumerable<GenericAttribute> src, string key, TValue defaultValue = default) where TValue : struct
    {
        var gaValue = GetValueOrNull<TValue>(src, key);
        return gaValue == null ? defaultValue : CommonHelper2.To<TValue>(gaValue);
    }

    public static bool TryGetValue<TValue>(this IEnumerable<GenericAttribute> src, string key, [NotNullWhen(true)] out TValue? value) where TValue : struct
    {
        value = null;

        var gaValue = GetValueOrNull<TValue>(src, key);
        if (gaValue == null) return false;

        value = CommonHelper2.To<TValue>(gaValue);
        return true;
    }

    public static GenericAttribute AddNewGenericAttribute(this ICollection<GenericAttribute> src, string keyGroup, string key, string value, int entityId, int storeId)
    {
        var ga = new GenericAttribute
        {
            KeyGroup = keyGroup,
            Key = key,
            Value = value,
            EntityId = entityId,
            StoreId = storeId,
            CreatedOrUpdatedDateUTC = DateTime.UtcNow
        };

        src.Add(ga);
        return ga;
    }
}