DocSpace-client/web/ASC.Web.Api/Core/QuotaHelper.cs

// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For details, see
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode

namespace ASC.Web.Api.Core;

[Scope]
public class QuotaHelper
{
    private readonly TenantManager _tenantManager;
    private readonly IServiceProvider _serviceProvider;
    private readonly CoreBaseSettings _coreBaseSettings;

    public QuotaHelper(TenantManager tenantManager, IServiceProvider serviceProvider, CoreBaseSettings coreBaseSettings)
    {
        _tenantManager = tenantManager;
        _serviceProvider = serviceProvider;
        _coreBaseSettings = coreBaseSettings;
    }

    public async IAsyncEnumerable<QuotaDto> GetQuotasAsync()
    {
        var quotaList = await _tenantManager.GetTenantQuotasAsync(false);

        foreach (var quota in quotaList)
        {
            yield return await ToQuotaDto(quota);
        }
    }

    public async Task<QuotaDto> GetCurrentQuotaAsync(bool refresh = false)
    {
        var quota = await _tenantManager.GetCurrentTenantQuotaAsync(refresh);

        return await ToQuotaDto(quota, true);
    }

    private async Task<QuotaDto> ToQuotaDto(TenantQuota quota, bool getUsed = false)
    {
        var features = await GetFeatures(quota, getUsed).ToListAsync();

        return new QuotaDto
        {
            Id = quota.TenantId,
            Title = Resource.ResourceManager.GetString($"Tariffs_{quota.Name}"),

            NonProfit = quota.NonProfit,
            Free = quota.Free,
            Trial = quota.Trial,

            Price = new PriceDto
            {
                Value = quota.Price,
                CurrencySymbol = quota.PriceCurrencySymbol
            },

            Features = features
        };
    }

    private async IAsyncEnumerable<TenantQuotaFeatureDto> GetFeatures(TenantQuota quota, bool getUsed)
    {
        var assembly = GetType().Assembly;

        var features = quota.Features.Split(' ', ',', ';');

        foreach (var feature in quota.TenantQuotaFeatures.
            Where(r =>
             {
                 if (r.Standalone)
                 {
                     return _coreBaseSettings.Standalone;
                 }

                 return r.Visible;
             })
           .OrderBy(r => r.Order))
        {
            var result = new TenantQuotaFeatureDto
            {
                Title = Resource.ResourceManager.GetString($"TariffsFeature_{feature.Name}"),
            };

            if (feature.Paid)
            {
                result.PriceTitle = Resource.ResourceManager.GetString($"TariffsFeature_{feature.Name}_price_count");
            }

            result.Id = feature.Name;

            object used = null;

            if (feature is TenantQuotaFeatureSize size)
            {
                result.Value = size.Value == long.MaxValue ? -1 : size.Value;
                result.Type = "size";
                result.Title = string.Format(result.Title, FileSizeComment.FilesSizeToString((long)result.Value));

                await GetStat<long>();
            }
            else if (feature is TenantQuotaFeatureCount count)
            {
                result.Value = count.Value == int.MaxValue ? -1 : count.Value;
                result.Type = "count";

                await GetStat<int>();
            }
            else if (feature is TenantQuotaFeatureFlag flag)
            {
                result.Value = flag.Value;
                result.Type = "flag";
            }

            if (getUsed)
            {
                if (used != null)
                {
                    result.Used = new FeatureUsedDto
                    {
                        Value = used,
                        Title = Resource.ResourceManager.GetString($"TariffsFeature_used_{feature.Name}")
                    };
                }
            }
            else
            {
                var img = assembly.GetManifestResourceStream($"{assembly.GetName().Name}.img.{feature.Name}.svg");

                if (img != null)
                {
                    try
                    {
                        using var memoryStream = new MemoryStream();
                        img.CopyTo(memoryStream);
                        result.Image = Encoding.UTF8.GetString(memoryStream.ToArray());
                    }
                    catch (Exception)
                    {

                    }
                }
            }

            yield return result;

            async Task GetStat<T>()
            {
                var statisticProvider = (ITenantQuotaFeatureStat<T>)_serviceProvider.GetService(typeof(ITenantQuotaFeatureStat<,>).MakeGenericType(feature.GetType(), typeof(T)));

                if (statisticProvider != null)
                {
                    used = await statisticProvider.GetValueAsync();
                }
            }
        }
    }
}