main

media-worker/Services/RemotionService.cs

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+using System.Diagnostics;
+using System.Text.Json;
+using Microsoft.Extensions.Logging;
+using SaasMediaWorker.Models;
+
+namespace SaasMediaWorker.Services;
+
+public class RemotionService
+{
+    private readonly ILogger<RemotionService> _logger;
+
+    public RemotionService(ILogger<RemotionService> logger)
+    {
+        _logger = logger;
+    }
+
+    public async Task<string> RenderVideoAsync(
+        string projectId,
+        string projectDir,
+        List<ScenePayload> scenes,
+        List<GeneratedMediaFile> generatedMedia,
+        string? musicPath,
+        int targetDurationSeconds,
+        CancellationToken ct)
+    {
+        _logger.LogInformation("🎬 Remotion render başlatılıyor — Project: {Id}", projectId);
+
+        // Remotion projesinin kök dizini (media-worker içindeki remotion klasörü)
+        var remotionDir = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "remotion");
+
+        // Props JSON dosyasını hazırla
+        var props = new
+        {
+            musicPath = musicPath,
+            scenes = scenes.Select(s => new
+            {
+                imagePath = s.ImagePath,
+                audioPath = generatedMedia.FirstOrDefault(m => m.SceneOrder == s.Order && m.Type == MediaFileType.AudioNarration)?.LocalPath,
+                ambientPath = generatedMedia.FirstOrDefault(m => m.SceneOrder == s.Order && m.Type == MediaFileType.AudioAmbient)?.LocalPath,
+                subtitle = s.SubtitleText,
+                durationInFrames = (int)(s.Duration * 30) // 30 FPS varsayımı
+            }).ToList()
+        };
+
+        var propsPath = Path.Combine(projectDir, "remotion-props.json");
+        await File.WriteAllTextAsync(propsPath, JsonSerializer.Serialize(props), ct);
+
+        // Final çıktı yolu
+        var outputPath = Path.Combine(projectDir, $"final_{projectId}.mp4");
+
+        // npx remotion render src/index.ts MainVideo output.mp4 --props props.json
+        var arguments = $"remotion render src/index.ts MainVideo \"{outputPath}\" --props=\"{propsPath}\"";
+
+        _logger.LogInformation("Çalıştırılıyor: npx {Args} (Dizin: {Dir})", arguments, remotionDir);
+
+        var processInfo = new ProcessStartInfo
+        {
+            FileName = "npx",
+            Arguments = arguments,
+            WorkingDirectory = remotionDir,
+            RedirectStandardOutput = true,
+            RedirectStandardError = true,
+            UseShellExecute = false,
+            CreateNoWindow = true
+        };
+
+        using var process = Process.Start(processInfo);
+        if (process == null)
+            throw new InvalidOperationException("Remotion process başlatılamadı.");
+
+        var outputTask = process.StandardOutput.ReadToEndAsync();
+        var errorTask = process.StandardError.ReadToEndAsync();
+
+        await process.WaitForExitAsync(ct);
+
+        var output = await outputTask;
+        var error = await errorTask;
+
+        if (process.ExitCode != 0)
+        {
+            _logger.LogError("Remotion render hatası. ExitCode: {Code}\nOutput: {Output}\nError: {Error}", 
+                process.ExitCode, output, error);
+            throw new Exception($"Remotion render başarısız oldu. Hata: {error}");
+        }
+
+        _logger.LogInformation("✅ Remotion render tamamlandı: {Path}", outputPath);
+        return outputPath;
+    }
+}