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TopicModelFactory.cs

using Nop.Core;
using Nop.Core.Domain.Topics;
using Nop.Services.Localization;
using Nop.Services.Seo;
using Nop.Services.Topics;
using Nop.Web.Models.Topics;

namespace Nop.Web.Factories;

/// 
/// Represents the topic model factory
/// 
public partial class TopicModelFactory : ITopicModelFactory
{
    #region Fields

    protected readonly ILocalizationService _localizationService;
    protected readonly IStoreContext _storeContext;
    protected readonly ITopicService _topicService;
    protected readonly ITopicTemplateService _topicTemplateService;
    protected readonly IUrlRecordService _urlRecordService;

    #endregion

    #region Ctor

    public TopicModelFactory(ILocalizationService localizationService,
        IStoreContext storeContext,
        ITopicService topicService,
        ITopicTemplateService topicTemplateService,
        IUrlRecordService urlRecordService)
    {
        _localizationService = localizationService;
        _storeContext = storeContext;
        _topicService = topicService;
        _topicTemplateService = topicTemplateService;
        _urlRecordService = urlRecordService;
    }

    #endregion

    #region Methods

    /// 
    /// Prepare the topic model
    /// 
    /// Topic
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the topic model
    /// 
    public virtual async Task PrepareTopicModelAsync(Topic topic)
    {
        ArgumentNullException.ThrowIfNull(topic);

        return new TopicModel
        {
            Id = topic.Id,
            SystemName = topic.SystemName,
            IncludeInSitemap = topic.IncludeInSitemap,
            IsPasswordProtected = topic.IsPasswordProtected,
            Title = topic.IsPasswordProtected ? string.Empty : await _localizationService.GetLocalizedAsync(topic, x => x.Title),
            Body = topic.IsPasswordProtected ? string.Empty : await _localizationService.GetLocalizedAsync(topic, x => x.Body),
            MetaKeywords = await _localizationService.GetLocalizedAsync(topic, x => x.MetaKeywords),
            MetaDescription = await _localizationService.GetLocalizedAsync(topic, x => x.MetaDescription),
            MetaTitle = await _localizationService.GetLocalizedAsync(topic, x => x.MetaTitle),
            SeName = await _urlRecordService.GetSeNameAsync(topic),
            TopicTemplateId = topic.TopicTemplateId
        };
    }

    /// 
    /// Get the topic model by topic system name
    /// 
    /// Topic system name
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the topic model
    /// 
    public virtual async Task PrepareTopicModelBySystemNameAsync(string systemName)
    {
        //load by store
        var store = await _storeContext.GetCurrentStoreAsync();
        var topic = await _topicService.GetTopicBySystemNameAsync(systemName, store.Id);
        if (topic == null)
            return null;

        return await PrepareTopicModelAsync(topic);
    }

    /// 
    /// Get topic template view path
    /// 
    /// Topic template identifier
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the view path
    /// 
    public virtual async Task PrepareTemplateViewPathAsync(int topicTemplateId)
    {
        var template = (await _topicTemplateService.GetTopicTemplateByIdAsync(topicTemplateId) ??
                        (await _topicTemplateService.GetAllTopicTemplatesAsync()).FirstOrDefault()) ?? throw new Exception("No default template could be loaded");

        return template.ViewPath;
    }

    #endregion
}