Add InfinityQSProjectConfiguration and related email functionality

Helpers/InfinityQSProjectHelper.cs

@@ -0,0 +1,114 @@
+using File_Watcher.Models;
+using System.Collections.ObjectModel;
+using System.Net.Mail;
+
+namespace File_Watcher.Helpers;
+
+internal static partial class InfinityQSProjectHelper
+{
+    private record Record(ReadOnlyCollection<string> FilteredLines,
+                          DateTime LastWriteTimeUtc,
+                          string Path);
+
+    private static long _LastReview = DateTime.UtcNow.Ticks;
+    private static readonly Dictionary<string, Record> _KeyValuePairs = [];
+
+    internal static bool SendEmail(AppSettings appSettings, ILogger<Worker> logger)
+    {
+        InfinityQSProjectConfiguration configuration = appSettings.InfinityQSProjectConfiguration;
+        Clear(logger, configuration);
+        ReadOnlyDictionary<string, Record> keyValuePairs = GetKeyValuePairs(logger, configuration);
+        SendEmail(logger, configuration, keyValuePairs);
+        _LastReview = DateTime.UtcNow.Ticks;
+        return true;
+    }
+
+    private static void Clear(ILogger<Worker> logger, InfinityQSProjectConfiguration configuration)
+    {
+        long check = DateTime.UtcNow.AddHours(-configuration.ClearEveryHours).Ticks;
+        foreach (KeyValuePair<string, Record> keyValuePair in _KeyValuePairs)
+        {
+            if (keyValuePair.Value.LastWriteTimeUtc.Ticks < check)
+            {
+                _ = _KeyValuePairs.Remove(keyValuePair.Key);
+                logger.LogDebug("Clear File:{file}", keyValuePair.Key);
+            }
+        }
+    }
+
+    private static ReadOnlyDictionary<string, Record> GetKeyValuePairs(ILogger<Worker> logger, InfinityQSProjectConfiguration configuration)
+    {
+        bool check;
+        Record? record;
+        string[] lines;
+        FileInfo fileInfo;
+        List<string> filtered = [];
+        Dictionary<string, Record> results = [];
+        string[] files = Directory.GetFiles(configuration.SourceDirectory, configuration.SearchPattern, SearchOption.TopDirectoryOnly);
+        foreach (string file in files)
+        {
+            check = false;
+            filtered.Clear();
+            fileInfo = new(file);
+            if (fileInfo.LastWriteTimeUtc.Ticks < _LastReview)
+            {
+                logger.LogDebug("Old File:{file}", file);
+                continue;
+            }
+            if (_KeyValuePairs.ContainsKey(fileInfo.FullName))
+            {
+                logger.LogDebug("Verified File:{file}", file);
+                continue;
+            }
+            lines = File.ReadAllLines(fileInfo.FullName);
+            foreach (string line in lines)
+            {
+                if (!check && line.Contains(configuration.Search))
+                {
+                    check = true;
+                    continue;
+                }
+                if (check)
+                {
+                    if (line.StartsWith(configuration.Search[0]))
+                        break;
+                    filtered.Add(line);
+                }
+            }
+            record = new(FilteredLines: filtered.AsReadOnly(),
+                         LastWriteTimeUtc: fileInfo.LastWriteTimeUtc,
+                         Path: fileInfo.FullName);
+            results.Add(fileInfo.FullName, record);
+        }
+        return results.AsReadOnly();
+    }
+
+    private static void SendEmail(ILogger<Worker> logger, InfinityQSProjectConfiguration configuration, ReadOnlyDictionary<string, Record> keyValuePairs)
+    {
+        string body;
+        foreach (KeyValuePair<string, Record> keyValuePair in keyValuePairs)
+        {
+            logger.LogDebug("File:{file}", keyValuePair.Key);
+            body = $"InfinityQS Project Change Detected{Environment.NewLine}File:{keyValuePair.Key}{Environment.NewLine}LastWriteTimeUtc:{keyValuePair.Value:O}{Environment.NewLine}{string.Join(Environment.NewLine, keyValuePair.Value.FilteredLines)}";
+            logger.LogWarning("SendEmail:{body}", body);
+            SendEmail(configuration.From, configuration.To, configuration.SimpleMailTransferProtocolServer, configuration.Subject, body);
+        }
+    }
+
+    private static void SendEmail(string from, string to, string simpleMailTransferProtocolServer, string subject, string body)
+    {
+        SmtpClient smtpClient = new(simpleMailTransferProtocolServer);
+        MailMessage mailMessage = new()
+        {
+            From = new MailAddress(from),
+            Subject = subject,
+            Body = body,
+            Priority = MailPriority.High
+        };
+        mailMessage.To.Add(new MailAddress(to));
+        smtpClient.Send(mailMessage);
+        smtpClient.Dispose();
+        mailMessage.Dispose();
+    }
+
+}