feat: add page-fetcher-api — centralised Playwright page fetcher

Introduces page-fetcher-api, a new internal ASP.NET Core service that centralises all web-page fetching through a single Playwright (headless Chromium) browser instance. All fetches are persisted to the pageFetcher SQL schema for auditing. New projects: - Apis/page-fetcher-api-models: FetchPageRequest, FetchPageResponse, IPageFetcherApiClient - Apis/page-fetcher-data: PageFetchDbContext, PageFetchEntity, InitialSchema migration (schema: pageFetcher) - Apis/page-fetcher-api: PlaywrightBrowserService (singleton), PageFetcherService, PageController Changes to existing services: - cv-matcher-api: JobTextExtractor now calls IPageFetcherApiClient instead of HttpClient - cv-search-job: HtmlJobSearcher uses IPageFetcherApiClient (removes inline Playwright); CvSearchJobTask fetches individual job pages and applies keyword pre-filter before LLM call; passes pre-fetched JobDescription to cv-matcher-api to skip re-fetch - common: add PageFetcherApiSettings - docker-compose.yml, build.yml: add new service + env vars for callers Closes #43 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-08 17:43:56 +03:00
parent 1222a86eb7
commit 898dd09d50
31 changed files with 1121 additions and 110 deletions
@@ -0,0 +1,49 @@
+using Microsoft.Playwright;
+
+namespace PageFetcherApi.Services;
+
+/// <summary>
+/// Singleton hosted service that owns the Playwright Chromium browser process for the lifetime of the application.
+/// Launches the browser once at startup and exposes it for injection into <see cref="PageFetcherService"/>.
+/// </summary>
+public sealed class PlaywrightBrowserService : IHostedService, IAsyncDisposable
+{
+    private IPlaywright? _playwright;
+    private IBrowser? _browser;
+    private readonly ILogger<PlaywrightBrowserService> _logger;
+
+    public PlaywrightBrowserService(ILogger<PlaywrightBrowserService> logger)
+    {
+        _logger = logger;
+    }
+
+    /// <summary>The running Chromium browser instance. Available after <see cref="StartAsync"/> completes.</summary>
+    public IBrowser Browser => _browser ?? throw new InvalidOperationException("Browser has not been started yet.");
+
+    /// <inheritdoc />
+    public async Task StartAsync(CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Launching Playwright Chromium browser...");
+        _playwright = await Playwright.CreateAsync();
+        _browser = await _playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions
+        {
+            Headless = true,
+            Args = ["--no-sandbox", "--disable-setuid-sandbox", "--disable-dev-shm-usage"]
+        });
+        _logger.LogInformation("Playwright Chromium browser launched successfully.");
+    }
+
+    /// <inheritdoc />
+    public async Task StopAsync(CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Closing Playwright Chromium browser...");
+        if (_browser is not null) await _browser.CloseAsync();
+    }
+
+    /// <inheritdoc />
+    public async ValueTask DisposeAsync()
+    {
+        if (_browser is not null) await _browser.DisposeAsync();
+        _playwright?.Dispose();
+    }
+}