501 lines
15 KiB
C#
501 lines
15 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text.Json;
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using System.Threading;
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using System.Threading.Tasks;
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using Data.Abstractions;
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using Data.Models;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using SharedLibraryCore.Dtos;
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using SharedLibraryCore.Interfaces;
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using SharedLibraryCore.QueryHelper;
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using ILogger = Microsoft.Extensions.Logging.ILogger;
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namespace IW4MAdmin.Application.Misc;
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public class MetaServiceV2 : IMetaServiceV2
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{
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private readonly IDictionary<MetaType, List<dynamic>> _metaActions;
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private readonly IDatabaseContextFactory _contextFactory;
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private readonly ILogger _logger;
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public MetaServiceV2(ILogger<MetaServiceV2> logger, IDatabaseContextFactory contextFactory)
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{
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_logger = logger;
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_metaActions = new Dictionary<MetaType, List<dynamic>>();
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_contextFactory = contextFactory;
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}
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public async Task SetPersistentMeta(string metaKey, string metaValue, int clientId,
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CancellationToken token = default)
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{
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if (!ValidArgs(metaKey, clientId))
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{
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return;
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}
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await using var context = _contextFactory.CreateContext();
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var existingMeta = await context.EFMeta
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.Where(meta => meta.Key == metaKey)
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.Where(meta => meta.ClientId == clientId)
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.FirstOrDefaultAsync(token);
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if (existingMeta != null)
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{
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_logger.LogDebug("Updating existing meta with key {Key} and id {Id}", existingMeta.Key,
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existingMeta.MetaId);
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existingMeta.Value = metaValue;
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existingMeta.Updated = DateTime.UtcNow;
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}
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else
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{
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_logger.LogDebug("Adding new meta with key {Key}", metaKey);
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context.EFMeta.Add(new EFMeta
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{
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ClientId = clientId,
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Created = DateTime.UtcNow,
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Key = metaKey,
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Value = metaValue,
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});
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}
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await context.SaveChangesAsync(token);
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}
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public async Task SetPersistentMetaValue<T>(string metaKey, T metaValue, int clientId,
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CancellationToken token = default) where T : class
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{
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if (!ValidArgs(metaKey, clientId))
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{
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return;
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}
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string serializedValue;
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try
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{
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serializedValue = JsonSerializer.Serialize(metaValue);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Could not serialize meta with key {Key}", metaKey);
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return;
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}
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await SetPersistentMeta(metaKey, serializedValue, clientId, token);
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}
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public async Task SetPersistentMetaForLookupKey(string metaKey, string lookupKey, int lookupId, int clientId,
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CancellationToken token = default)
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{
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if (!ValidArgs(metaKey, clientId))
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{
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return;
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}
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await using var context = _contextFactory.CreateContext();
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var lookupMeta = await context.EFMeta.FirstOrDefaultAsync(meta => meta.Key == lookupKey, token);
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if (lookupMeta is null)
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{
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_logger.LogWarning("No lookup meta exists for metaKey {MetaKey} and lookupKey {LookupKey}", metaKey,
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lookupKey);
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return;
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}
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var lookupValues = JsonSerializer.Deserialize<List<LookupValue<string>>>(lookupMeta.Value);
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if (lookupValues is null)
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{
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return;
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}
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var foundLookup = lookupValues.FirstOrDefault(value => value.Id == lookupId);
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if (foundLookup is null)
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{
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_logger.LogWarning("No lookup meta found for provided lookup id {MetaKey}, {LookupKey}, {LookupId}",
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metaKey, lookupKey, lookupId);
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return;
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}
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_logger.LogDebug("Setting meta for lookup {MetaKey}, {LookupKey}, {LookupId}",
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metaKey, lookupKey, lookupId);
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await SetPersistentMeta(metaKey, lookupId.ToString(), clientId, token);
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}
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public async Task IncrementPersistentMeta(string metaKey, int incrementAmount, int clientId,
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CancellationToken token = default)
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{
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if (!ValidArgs(metaKey, clientId))
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{
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return;
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}
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var existingMeta = await GetPersistentMeta(metaKey, clientId, token);
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if (!long.TryParse(existingMeta?.Value ?? "0", out var existingValue))
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{
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existingValue = 0;
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}
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var newValue = existingValue + incrementAmount;
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await SetPersistentMeta(metaKey, newValue.ToString(), clientId, token);
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}
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public async Task DecrementPersistentMeta(string metaKey, int decrementAmount, int clientId,
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CancellationToken token = default)
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{
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await IncrementPersistentMeta(metaKey, -decrementAmount, clientId, token);
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}
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public async Task<EFMeta> GetPersistentMeta(string metaKey, int clientId, CancellationToken token = default)
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{
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if (!ValidArgs(metaKey, clientId))
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{
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return null;
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}
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await using var ctx = _contextFactory.CreateContext(enableTracking: false);
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return await ctx.EFMeta
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.Where(meta => meta.Key == metaKey)
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.Where(meta => meta.ClientId == clientId)
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.Select(meta => new EFMeta
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{
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MetaId = meta.MetaId,
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Key = meta.Key,
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ClientId = meta.ClientId,
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Value = meta.Value,
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})
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.FirstOrDefaultAsync(token);
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}
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public async Task<T> GetPersistentMetaValue<T>(string metaKey, int clientId, CancellationToken token = default)
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where T : class
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{
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var meta = await GetPersistentMeta(metaKey, clientId, token);
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if (meta is null)
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{
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return default;
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}
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try
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{
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return JsonSerializer.Deserialize<T>(meta.Value);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Could not deserialize meta with key {Key} and value {Value}", metaKey, meta.Value);
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return default;
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}
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}
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public async Task<EFMeta> GetPersistentMetaByLookup(string metaKey, string lookupKey, int clientId,
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CancellationToken token = default)
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{
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await using var context = _contextFactory.CreateContext();
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var metaValue = await GetPersistentMeta(metaKey, clientId, token);
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if (metaValue is null)
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{
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_logger.LogWarning("No meta exists for key {Key}, clientId {ClientId}", metaKey, clientId);
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return default;
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}
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var lookupMeta = await context.EFMeta.FirstOrDefaultAsync(meta => meta.Key == lookupKey, token);
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if (lookupMeta is null)
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{
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_logger.LogWarning("No lookup meta exists for metaKey {MetaKey} and lookupKey {LookupKey}", metaKey,
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lookupKey);
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return default;
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}
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var lookupId = int.Parse(metaValue.Value);
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var lookupValues = JsonSerializer.Deserialize<List<LookupValue<string>>>(lookupMeta.Value);
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if (lookupValues is null)
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{
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return default;
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}
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var foundLookup = lookupValues.FirstOrDefault(value => value.Id == lookupId);
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if (foundLookup is not null)
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{
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return new EFMeta
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{
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Created = metaValue.Created,
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Updated = metaValue.Updated,
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Extra = metaValue.Extra,
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MetaId = metaValue.MetaId,
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Value = foundLookup.Value
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};
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}
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_logger.LogWarning("No lookup meta found for provided lookup id {MetaKey}, {LookupKey}, {LookupId}",
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metaKey, lookupKey, lookupId);
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return default;
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}
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public async Task RemovePersistentMeta(string metaKey, int clientId, CancellationToken token = default)
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{
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if (!ValidArgs(metaKey, clientId))
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{
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return;
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}
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await using var context = _contextFactory.CreateContext();
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var existingMeta = await context.EFMeta
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.FirstOrDefaultAsync(meta => meta.Key == metaKey && meta.ClientId == clientId, token);
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if (existingMeta == null)
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{
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_logger.LogDebug("No meta with key {Key} found for client id {Id}", metaKey, clientId);
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return;
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}
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_logger.LogDebug("Removing meta for key {Key} with id {Id}", metaKey, existingMeta.MetaId);
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context.EFMeta.Remove(existingMeta);
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await context.SaveChangesAsync(token);
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}
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public async Task SetPersistentMeta(string metaKey, string metaValue, CancellationToken token = default)
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{
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if (string.IsNullOrWhiteSpace(metaKey))
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{
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_logger.LogWarning("Cannot save meta with no key");
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return;
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}
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await using var ctx = _contextFactory.CreateContext();
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var existingMeta = await ctx.EFMeta
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.Where(meta => meta.Key == metaKey)
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.Where(meta => meta.ClientId == null)
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.FirstOrDefaultAsync(token);
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if (existingMeta is not null)
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{
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_logger.LogDebug("Updating existing meta with key {Key} and id {Id}", existingMeta.Key,
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existingMeta.MetaId);
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existingMeta.Value = metaValue;
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existingMeta.Updated = DateTime.UtcNow;
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await ctx.SaveChangesAsync(token);
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}
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else
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{
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_logger.LogDebug("Adding new meta with key {Key}", metaKey);
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ctx.EFMeta.Add(new EFMeta
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{
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Created = DateTime.UtcNow,
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Key = metaKey,
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Value = metaValue
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});
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await ctx.SaveChangesAsync(token);
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}
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}
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public async Task SetPersistentMetaValue<T>(string metaKey, T metaValue, CancellationToken token = default)
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where T : class
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{
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if (string.IsNullOrWhiteSpace(metaKey))
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{
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_logger.LogWarning("Meta key is null, not setting");
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return;
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}
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if (metaValue is null)
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{
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_logger.LogWarning("Meta value is null, not setting");
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return;
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}
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string serializedMeta;
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try
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{
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serializedMeta = JsonSerializer.Serialize(metaValue);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Could not serialize meta with {Key} and value {Value}", metaKey, metaValue);
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return;
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}
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await SetPersistentMeta(metaKey, serializedMeta, token);
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}
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public async Task<EFMeta> GetPersistentMeta(string metaKey, CancellationToken token = default)
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{
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if (string.IsNullOrWhiteSpace(metaKey))
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{
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return null;
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}
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await using var context = _contextFactory.CreateContext(false);
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return await context.EFMeta.FirstOrDefaultAsync(meta => meta.Key == metaKey, token);
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}
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public async Task<T> GetPersistentMetaValue<T>(string metaKey, CancellationToken token = default) where T : class
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{
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if (string.IsNullOrWhiteSpace(metaKey))
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{
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return default;
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}
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var meta = await GetPersistentMeta(metaKey, token);
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if (meta is null)
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{
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return default;
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}
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try
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{
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return JsonSerializer.Deserialize<T>(meta.Value);
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Could not serialize meta with key {Key} and value {Value}", metaKey, meta.Value);
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return default;
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}
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}
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public async Task RemovePersistentMeta(string metaKey, CancellationToken token = default)
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{
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if (string.IsNullOrWhiteSpace(metaKey))
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{
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return;
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}
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await using var context = _contextFactory.CreateContext(enableTracking: false);
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var existingMeta = await context.EFMeta
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.Where(meta => meta.Key == metaKey)
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.Where(meta => meta.ClientId == null)
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.FirstOrDefaultAsync(token);
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if (existingMeta != null)
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{
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_logger.LogDebug("Removing meta for key {Key} with id {Id}", metaKey, existingMeta.MetaId);
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context.Remove(existingMeta);
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await context.SaveChangesAsync(token);
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}
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}
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public void AddRuntimeMeta<T, TReturnType>(MetaType metaKey,
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Func<T, CancellationToken, Task<IEnumerable<TReturnType>>> metaAction)
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where T : PaginationRequest where TReturnType : IClientMeta
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{
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if (!_metaActions.ContainsKey(metaKey))
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{
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_metaActions.Add(metaKey, new List<dynamic> { metaAction });
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}
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else
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{
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_metaActions[metaKey].Add(metaAction);
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}
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}
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public async Task<IEnumerable<IClientMeta>> GetRuntimeMeta(ClientPaginationRequest request, CancellationToken token = default)
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{
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var metas = await Task.WhenAll(_metaActions.Where(kvp => kvp.Key != MetaType.Information)
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.Select(async kvp => await kvp.Value[0](request, token)));
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return metas.SelectMany(m => (IEnumerable<IClientMeta>)m)
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.OrderByDescending(m => m.When)
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.Take(request.Count)
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.ToList();
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}
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public async Task<IEnumerable<T>> GetRuntimeMeta<T>(ClientPaginationRequest request, MetaType metaType, CancellationToken token = default)
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where T : IClientMeta
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{
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if (metaType == MetaType.Information)
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{
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var allMeta = new List<T>();
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var completedMeta = await Task.WhenAll(_metaActions[metaType].Select(async individualMetaRegistration =>
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(IEnumerable<T>)await individualMetaRegistration(request, token)));
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allMeta.AddRange(completedMeta.SelectMany(meta => meta));
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return ProcessInformationMeta(allMeta);
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}
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var meta = await _metaActions[metaType][0](request, token) as IEnumerable<T>;
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return meta;
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}
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private static IEnumerable<T> ProcessInformationMeta<T>(IEnumerable<T> meta) where T : IClientMeta
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{
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var metaList = meta.ToList();
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var metaWithColumn = metaList
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.Where(m => m.Column != null)
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.ToList();
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var columnGrouping = metaWithColumn
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.GroupBy(m => m.Column)
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.ToList();
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var metaToSort = metaList.Except(metaWithColumn).ToList();
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var table = columnGrouping.Select(metaItem => new List<T>(metaItem)).ToList();
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while (metaToSort.Count > 0)
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{
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var sortingMeta = metaToSort.First();
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int IndexOfSmallestColumn()
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{
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var index = 0;
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var smallestColumnSize = int.MaxValue;
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for (var i = 0; i < table.Count; i++)
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{
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if (table[i].Count >= smallestColumnSize)
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{
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continue;
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}
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smallestColumnSize = table[i].Count;
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index = i;
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}
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return index;
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}
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var columnIndex = IndexOfSmallestColumn();
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sortingMeta.Column = columnIndex;
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sortingMeta.Order = columnGrouping
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.First(group => group.Key == columnIndex)
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.Count();
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table[columnIndex].Add(sortingMeta);
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metaToSort.Remove(sortingMeta);
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}
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return metaList;
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}
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private static bool ValidArgs(string key, int clientId) => !string.IsNullOrWhiteSpace(key) && clientId > 0;
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}
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