51 lines
1.7 KiB
C#
51 lines
1.7 KiB
C#
using System.Text;
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using System.Text.Json;
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using SharepointToolbox.Web.Core.Models;
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namespace SharepointToolbox.Web.Infrastructure.Persistence;
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/// <summary>Append-only JSONL audit log. Each line is one AuditEntry JSON object.</summary>
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public class AuditRepository
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{
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private readonly string _filePath;
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private readonly SemaphoreSlim _writeLock = new(1, 1);
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private static readonly JsonSerializerOptions _opts = new()
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{
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PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
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PropertyNameCaseInsensitive = true
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};
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public AuditRepository(string filePath) { _filePath = filePath; }
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public async Task AppendAsync(AuditEntry entry)
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{
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await _writeLock.WaitAsync();
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try
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{
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var dir = Path.GetDirectoryName(_filePath);
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if (!string.IsNullOrEmpty(dir)) Directory.CreateDirectory(dir);
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var line = JsonSerializer.Serialize(entry, _opts) + "\n";
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await File.AppendAllTextAsync(_filePath, line, Encoding.UTF8);
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}
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finally { _writeLock.Release(); }
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}
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public async Task<IReadOnlyList<AuditEntry>> LoadAllAsync()
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{
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if (!File.Exists(_filePath)) return Array.Empty<AuditEntry>();
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var lines = await File.ReadAllLinesAsync(_filePath, Encoding.UTF8);
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var result = new List<AuditEntry>(lines.Length);
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foreach (var line in lines)
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{
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if (string.IsNullOrWhiteSpace(line)) continue;
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try
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{
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var entry = JsonSerializer.Deserialize<AuditEntry>(line, _opts);
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if (entry != null) result.Add(entry);
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}
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catch { /* skip corrupt lines */ }
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}
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return result;
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}
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}
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