DB 작업용 신규 워커 추가.

Program.cs

@@ -58,6 +58,7 @@ namespace TriliumMind
             // Register Workers
             builder.Services.AddHostedService<JiraWorker>();
             builder.Services.AddHostedService<TriliumWorker>();
+            builder.Services.AddHostedService<AppDbWorker>();
 
             // Register Channels
             builder.Services.AddSingleton(Channel.CreateUnbounded<Issue>());
@@ -69,12 +70,19 @@ namespace TriliumMind
                 Log.Information("Starting database migration...");
 
                 using var scope = host.Services.CreateScope();
+                var dbContext = scope.ServiceProvider.GetRequiredService<IAppDbContext>();
+                if(dbContext is DbContext context)
+                {
+                    var created = await context.Database.EnsureCreatedAsync();
+                    if(created)
+                        Log.Information("Database created successfully");
+                    else
+                        Log.Information("Database already exists");
+                }
 
-                var db = scope.ServiceProvider.GetRequiredService<AppDbService>();
+                var dbService = scope.ServiceProvider.GetRequiredService<AppDbService>();
-                await db.InitializeDatabaseAsync();
-                
                 var appCoinfigs = host.Services.GetRequiredService<AppConfigs>();
-                appCoinfigs.RuntimeConfigs = await db.LoadConfigAsync();
+                appCoinfigs.RuntimeConfigs = await dbService.LoadConfigAsync();
 
                 Log.Information("Database initialization completed successfully");
             }

Services/Mappers/JiraIssueMapper.cs

@@ -0,0 +1,26 @@
+using TriliumMind.Data.Entities;
+using TriliumMind.Models;
+
+namespace TriliumMind.Services.Mappers;
+
+public static class JiraIssueMapper
+{
+    public static JiraIssue ToEntity(this Issue issue)
+    {
+        return new JiraIssue
+        {
+            Key = issue.key,
+            Summary = issue.fields.summary ?? string.Empty,
+            Parent = issue.fields.parent?.key ?? issue.fields.customfield_10808,
+            Type = issue.fields.issuetype?.name ?? string.Empty,
+            Status = issue.fields.status?.description ?? string.Empty,
+            Assignee = issue.fields.assignee?.displayName ?? string.Empty,
+            Manager = issue.fields.reporter?.displayName ?? string.Empty,
+            Due = issue.fields.duedate?.ToUniversalTime() ?? DateTimeOffset.MinValue,
+            Updated = issue.fields.UpdatedAt,
+            Published = DateTimeOffset.MinValue,
+            ObjectId = null,
+            NeedNotify = 0
+        };
+    }
+}

Workers/AppDbWorker.cs

@@ -0,0 +1,128 @@
+using Serilog;
+using System.Threading.Channels;
+using TriliumMind.Models;
+using TriliumMind.Services;
+using TriliumMind.Services.Mappers;
+
+namespace TriliumMind.Workers;
+
+public class AppDbWorker : BackgroundService
+{
+    private readonly Serilog.ILogger _log;
+    private readonly AppConfigs _configs;
+    private readonly IServiceScopeFactory _scopeFactory; // Singleton services cannot directly inject Scoped services.
+    private readonly Channel<Issue> _issueChannel;
+
+    private readonly int _batchSize;
+    private readonly TimeSpan _batchTimeout;
+
+    public AppDbWorker(AppConfigs configs, IServiceScopeFactory scopeFactory, Channel<Issue> issueChannel)
+    {
+        _log = Log.ForContext<AppDbWorker>();
+        _configs = configs;
+        _scopeFactory = scopeFactory;
+        _issueChannel = issueChannel;
+
+        _batchSize = 50;
+        _batchTimeout = TimeSpan.FromSeconds(5);
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        _log.Information("AppDbWorker started");
+
+        var batch = new List<Issue>();
+        try
+        {
+            while (!stoppingToken.IsCancellationRequested)
+            {
+                try
+                {
+                    using var timeoutCts = CancellationTokenSource.CreateLinkedTokenSource(stoppingToken);
+                    timeoutCts.CancelAfter(_batchTimeout);
+
+                    while (batch.Count < _batchSize && !stoppingToken.IsCancellationRequested)
+                    {
+                        try
+                        {
+                            if (_issueChannel.Reader.TryRead(out var issue))
+                            {
+                                batch.Add(issue);
+                            }
+                            else
+                            {
+                                // Wait if channel is empty
+                                var readTask = _issueChannel.Reader.WaitToReadAsync(timeoutCts.Token);
+                                if (await readTask.ConfigureAwait(false))
+                                {
+                                    if (_issueChannel.Reader.TryRead(out issue))
+                                    {
+                                        batch.Add(issue);
+                                    }
+                                }
+                                else
+                                {
+                                    break; // Channel is closed.
+                                }
+                            }
+                        }
+                        catch (OperationCanceledException) when (timeoutCts.IsCancellationRequested && !stoppingToken.IsCancellationRequested)
+                        {
+                            break; // Timeout
+                        }
+                    }
+
+                    if (batch.Count > 0)
+                    {
+                        using var scope = _scopeFactory.CreateScope();
+                        var db = scope.ServiceProvider.GetRequiredService<AppDbService>();
+                        var jiraIssues = batch.Select(i => i.ToEntity()).ToList();
+                        await db.UpsertJiraIssuesBatchAsync(jiraIssues, stoppingToken);
+
+                        _log.Information("Processed batch of {count} Jira issues", batch.Count);
+                        batch.Clear();
+                    }
+                }
+                catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
+                {
+                    break;
+                }
+                catch (Exception ex)
+                {
+                    _log.Error(ex, "Error processing batch");
+                    batch.Clear();
+                    await Task.Delay(TimeSpan.FromSeconds(1), stoppingToken);
+                }
+            }
+
+            // Process any remaining issues in the batch
+            if (batch.Count > 0)
+            {
+                using var scope = _scopeFactory.CreateScope();
+                var db = scope.ServiceProvider.GetRequiredService<AppDbService>();
+                var jiraIssues = batch.Select(i => i.ToEntity()).ToList();
+                await db.UpsertJiraIssuesBatchAsync(jiraIssues, CancellationToken.None);
+                _log.Information("Processed final batch of {count} Jira issues", batch.Count);
+            }
+        }
+        catch (Exception ex)
+        {
+            _log.Error(ex, "Fatal error in JiraDbWorker");
+        }
+
+        //await foreach (var issue in _issueChannel.Reader.ReadAllAsync(stoppingToken))
+        //{
+        //    try
+        //    {
+        //        var jiraIssue = issue.ToEntity();
+        //        await _db.UpsertJiraIssueAsync(jiraIssue, stoppingToken);
+        //        _log.Debug("Processed Jira issue: {key}", issue.key);
+        //    }
+        //    catch (Exception ex)
+        //    {
+        //        _log.Error(ex, "Failed to process Jira issue: {key}", issue.key);
+        //    }
+        //}
+        _log.Information("AppDbWorker stopped");
+    }
+}