alexei.dolgolyov
85bc99cac5
Three fixes surfaced when launching the WPF host for the first time: 1. App.xaml.cs — call MarathonDbContextInitializer.InitializeAsync() between Host.Build() and Host.Start() so EF migrations + WAL pragma are applied BEFORE BackgroundServices race to query the DB. Without this, all pollers crashed on 'no such table: Events'. 2. wwwroot/index.html — added <script src='https://cdn.plot.ly/plotly-2.35.2.min.js'> before blazor.webview.js. Phase 6 reviewer flagged this for Phase 9, but charts are unrenderable without it; better to ship now. 3. Migrations/20260505000000_InitialCreate.cs — added [DbContext] and [Migration('20260505000000_InitialCreate')] attributes. Phase 2's hand-written migration was missing both, so EF saw 'no migrations to apply' even on a fresh DB. With the attributes, the migration runs on first launch and creates all tables (Events, Snapshots, Bets, EventResults, Anomalies, Sports, Leagues). Verified: clean DB → migration applied → all 7 tables created → pollers run with empty results (no data yet — UpcomingEventsPoller fires every 6h by default; first scrape will populate the DB).
maraphon-app
Sports betting odds analyzer for marathonbet.by.
Scrapes pre-match (/su) and live (/su/live) sports events, tracks coefficient changes
over time, and detects anomalies — in particular the "odds-flip" pattern where the
bookmaker freezes betting and then inverts underdog/favorite odds.
Tech stack
- .NET 8 + C# 12
- Blazor Hybrid — WPF shell hosting
BlazorWebView(designed to migrate to ASP.NET Core Blazor Server with no UI rewrite) - EF Core + SQLite (WAL mode) for local storage
- ClosedXML for Excel export
- AngleSharp for HTML scraping (with Playwright fallback for JS-rendered pages)
- Polly v8 for retry / circuit breaker / rate limiting
- MudBlazor UI components, Plotly.Blazor for charts
- Serilog structured logging
- xUnit / FluentAssertions / NSubstitute for tests
Project layout
src/
Marathon.Domain/ entities, value objects, no dependencies
Marathon.Application/ use cases, abstractions (IOddsScraper, IRepository, ...)
Marathon.Infrastructure/ EF Core, scraping, Polly, Excel, Playwright
Marathon.UI/ Razor Class Library — all Blazor components live here
Marathon.Hosts.WpfBlazor/ WPF + BlazorWebView host (replaceable for web)
tests/
Marathon.*.Tests/ unit + integration tests per layer
Build & run
dotnet build Marathon.sln
dotnet test Marathon.sln
dotnet run --project src/Marathon.Hosts.WpfBlazor
Configuration
All variable parameters (polling intervals, concurrency, user-agents, retry policy,
snapshot retention, locale) are exposed via appsettings.json and live-editable via
the in-app Settings page.
Status
🟡 In active development. See plans/initial-implementation/PLAN.md
for the current phase plan and progress.
License
Private — customer project.