generated from fahricansecer/boilerplate-be
Harun CAN
92 lines
2.9 KiB
C#
92 lines
2.9 KiB
C#
using System.Net.Http.Headers;
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using System.Text;
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using System.Text.Json;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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using SaasMediaWorker.Configuration;
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using SaasMediaWorker.Models;
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namespace SaasMediaWorker.Services;
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/// <summary>
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/// OpenAI TTS API Client — Metin → Ses dönüşümü.
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/// </summary>
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public class OpenAiTtsService
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{
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private readonly HttpClient _httpClient;
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private readonly ILogger<OpenAiTtsService> _logger;
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private readonly ApiSettings _settings;
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public OpenAiTtsService(
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HttpClient httpClient,
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ILogger<OpenAiTtsService> logger,
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IOptions<ApiSettings> settings)
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{
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_httpClient = httpClient;
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_logger = logger;
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_settings = settings.Value;
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_httpClient.BaseAddress = new Uri("https://api.openai.com/v1/");
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_httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", _settings.OpenAiApiKey);
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_httpClient.Timeout = TimeSpan.FromMinutes(2);
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}
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/// <summary>
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/// Bir sahnenin narration metnini sese çevirir ve dosyaya kaydeder.
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/// </summary>
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public async Task<GeneratedMediaFile> GenerateNarrationAsync(
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ScenePayload scene,
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string outputDirectory,
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string voiceStyle,
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CancellationToken ct)
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{
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_logger.LogInformation(
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"🎙️ OpenAI TTS üretimi — Sahne {Order}: \"{Text}\"",
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scene.Order,
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scene.NarrationText[..Math.Min(60, scene.NarrationText.Length)]);
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// Varsayılan voiceStyle kullan veya fallback
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var voiceId = string.IsNullOrWhiteSpace(voiceStyle) ? _settings.OpenAiTtsVoiceId : voiceStyle;
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var requestBody = new
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{
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model = "tts-1",
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input = scene.NarrationText,
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voice = voiceId,
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response_format = "mp3"
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};
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var content = new StringContent(
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JsonSerializer.Serialize(requestBody),
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Encoding.UTF8,
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"application/json");
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var response = await _httpClient.PostAsync("audio/speech", content, ct);
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response.EnsureSuccessStatusCode();
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// Ses dosyasını kaydet
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var outputPath = Path.Combine(outputDirectory, $"scene_{scene.Order:D2}_narration.mp3");
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await using var fileStream = File.Create(outputPath);
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await response.Content.CopyToAsync(fileStream, ct);
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var fileInfo = new FileInfo(outputPath);
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_logger.LogInformation(
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"OpenAI TTS tamamlandı — Sahne {Order}: {Size} bytes",
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scene.Order, fileInfo.Length);
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return new GeneratedMediaFile
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{
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SceneId = scene.Id,
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SceneOrder = scene.Order,
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Type = MediaFileType.AudioNarration,
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LocalPath = outputPath,
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FileSizeBytes = fileInfo.Length,
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DurationSeconds = scene.Duration,
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MimeType = "audio/mpeg",
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AiProvider = "openai"
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};
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}
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}
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