# anshumandikshit/ticktacktoe-app architecture

> Architecture diagram of the GitHub repository anshumandikshit/ticktacktoe-app, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-08-07). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/anshumandikshit/ticktacktoe-app
- Repository: https://github.com/anshumandikshit/ticktacktoe-app

## Overview

#### Purpose and Topology
A browser-based Tic-Tac-Toe system with an Angular client and ASP.NET Core API. The client plays/manages games through HTTP and receives scoreboard updates through a real-time hub. Backend persistence is modeled with Entity Framework Core migrations.

#### Entry Points and Hosting
- ASP.NET Core application bootstraps routing, dependency injection, persistence, and hub hosting in `TicTacToeApp/API/Program.cs`.
- API project and solution boundaries are `TicTacToeApp/API/API.csproj` and `TicTacToeApp/TicTacToeApp.sln`.
- Angular browser startup is `client-app/src/main.ts`; application-level providers and routes begin at `client-app/src/app/app.config.ts` and `client-app/src/app/app.routes.ts`.

#### HTTP API Boundary
Controllers expose the backend’s request boundary:
- Game lifecycle and moves: `TicTacToeApp/API/Controllers/GamesController.cs`.
- Score retrieval/update operations: `TicTacToeApp/API/Controllers/ScoreboardController.cs`.
- `TicTacToeApp/API/Controllers/WeatherForecastController.cs` is likely template/sample functionality rather than core game architecture.

Controllers should remain transport-focused, delegating game rules and scoreboard behavior to services.

#### Domain and Game State
Core persisted domain entities separate a game, its individual moves, and aggregated/player scoreboard data:
- `TicTacToeApp/API/Models/Game.cs`
- `TicTacToeApp/API/Models/Move.cs`
- `TicTacToeApp/API/Models/Scoreboard.cs`

Enums, including game-type-related state indicated by migration history, live in `TicTacToeApp/API/Enums/ApplicationEnumscs.cs`. Session identifiers appear to be part of the persistence model, enabling game/scoreboard association across browser interactions.

#### Application and Persistence Layers
Service interfaces and implementations contain application orchestration:
- `TicTacToeApp/API/Services/GameService.cs`
- `TicTacToeApp/API/Services/ScoreboardService.cs`
- `TicTacToeApp/API/Services/Interface/IGameService.cs`

Repositories isolate database access from services:
- `TicTacToeApp/API/Repositories/GameRepository.cs`
- `TicTacToeApp/API/Repositories/ScoreboardRepository.cs`
- `TicTacToeApp/API/Data/DbContext.cs`

The flow is Controller → Service → Repository → EF Core `DbContext` → configured database. Schema evolution is recorded under `TicTacToeApp/API/Migrations/`, including game, move, scoreboard, session, and indexing changes.

#### Real-Time Scoreboard Path
`TicTacToeApp/API/WebSocket/ScoreboardHub.cs` is the server-side real-time boundary, likely hosted through SignalR/WebSocket infrastructure. The Angular counterpart, `client-app/src/app/services/ScoreBoardSignal.service.ts`, connects to and consumes scoreboard events. This creates a push path parallel to HTTP: game completion or scoreboard updates can persist through services/repositories and then broadcast to connected clients.

#### Angular Client Composition
The root shell is `client-app/src/app/app.ts` and `client-app/src/app/app.html`. The primary UI feature is the Tic-Tac-Toe component:
- `client-app/src/app/components/tic-tac-toe/tic-tac-toe.ts`
- `client-app/src/app/components/tic-tac-toe/tic-tac-toe.html`

Client-side API models mirror backend concepts in `client-app/src/app/models/Game.ts`, `client-app/src/app/models/Move.ts`, and `client-app/src/app/models/ScoreBoard.ts`. `client-app/src/app/services/game.ts` is the HTTP integration boundary for game operations; the scoreboard signal service owns real-time integration.

#### Material Runtimes and External Dependencies
- Angular/TypeScript runs in the browser, configured from `client-app/package.json` and `client-app/angular.json`.
- ASP.NET Core/.NET hosts REST controllers and the real-time hub via `TicTacToeApp/API/API.csproj`.
- Entity Framework Core provides persistence and migrations through `TicTacToeApp/API/Data/DbContext.cs`.
- Runtime database connection and host settings are expected in `TicTacToeApp/API/appsettings.json` and `TicTacToeApp/API/appsettings.Development.json`.

Main entry points: [`TicTacToeApp/API/Data/DbContext.cs`](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Data/DbContext.cs) (EF Core DbContext), [`client-app/src/app/components/tic-tac-toe/tic-tac-toe.ts`](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/components/tic-tac-toe/tic-tac-toe.ts) (Tic-Tac-Toe UI), [`TicTacToeApp/API/Services/ScoreboardService.cs`](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Services/ScoreboardService.cs) (Scoreboard service), [`TicTacToeApp/API/Program.cs`](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Program.cs) (API host and DI)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_client["Angular Browser Client"]
  node_client_bootstrap["Browser bootstrap<br/>Angular entry point<br/>[main.ts]"]
  node_client_shell["App shell and routes<br/>Angular composition<br/>[app.config.ts]"]
  node_game_ui["Tic-Tac-Toe UI<br/>Angular component<br/>[tic-tac-toe.ts]"]
  node_game_http_client["Game HTTP client<br/>Angular service<br/>[game.ts]"]
  node_score_signal_client["Scoreboard SignalR client<br/>Angular service"]
  node_client_models["Game client models<br/>TypeScript models<br/>[Game.ts]"]
end

subgraph group_api["ASP.NET Core API"]
  node_api_host["API host and DI<br/>ASP.NET Core bootstrap<br/>[Program.cs]"]
  node_games_controller["Games controller<br/>REST controller<br/>[GamesController.cs]"]
  node_scoreboard_controller["Scoreboard controller<br/>REST controller"]
  node_scoreboard_hub["Scoreboard hub<br/>SignalR hub<br/>[ScoreboardHub.cs]"]
  node_game_service["Game service<br/>application service<br/>[GameService.cs]"]
  node_scoreboard_service["Scoreboard service<br/>application service"]
end

subgraph group_persistence["Persistence"]
  node_game_repository["Game repository<br/>[GameRepository.cs]"]
  node_scoreboard_repository["Scoreboard repository"]
  node_db_context[("EF Core DbContext<br/>persistence context<br/>[DbContext.cs]")]
  node_domain_models["Game domain model<br/>EF Core entities<br/>[Game.cs]"]
  node_migrations["Schema migrations<br/>EF Core migrations"]
end

node_database[("Configured database<br/>external database")]

node_client_bootstrap -->|"starts"| node_client_shell
node_client_shell -->|"routes to"| node_game_ui
node_game_ui -->|"game requests"| node_game_http_client
node_game_ui -->|"score updates"| node_score_signal_client
node_game_ui -->|"uses"| node_client_models
node_game_http_client -->|"HTTP"| node_games_controller
node_game_http_client -->|"HTTP"| node_scoreboard_controller
node_score_signal_client -->|"SignalR connection"| node_scoreboard_hub
node_api_host -->|"hosts"| node_games_controller
node_api_host -->|"hosts"| node_scoreboard_controller
node_api_host -->|"hosts"| node_scoreboard_hub
node_games_controller -->|"delegates"| node_game_service
node_scoreboard_controller -->|"delegates"| node_scoreboard_service
node_game_service -->|"persists games and moves"| node_game_repository
node_game_service -->|"updates on completion"| node_scoreboard_service
node_scoreboard_service -->|"persists scores"| node_scoreboard_repository
node_scoreboard_service -->|"broadcasts updates"| node_scoreboard_hub
node_game_repository -->|"queries"| node_db_context
node_scoreboard_repository -->|"queries"| node_db_context
node_db_context -->|"maps"| node_domain_models
node_db_context -->|"EF Core"| node_database
node_migrations -.->|"evolves schema"| node_db_context

click node_client_bootstrap "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/main.ts"
click node_client_shell "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/app.config.ts"
click node_game_ui "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/components/tic-tac-toe/tic-tac-toe.ts"
click node_game_http_client "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/services/game.ts"
click node_score_signal_client "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/services/ScoreBoardSignal.service.ts"
click node_client_models "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/models/Game.ts"
click node_api_host "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Program.cs"
click node_games_controller "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Controllers/GamesController.cs"
click node_scoreboard_controller "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Controllers/ScoreboardController.cs"
click node_scoreboard_hub "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/WebSocket/ScoreboardHub.cs"
click node_game_service "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Services/GameService.cs"
click node_scoreboard_service "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Services/ScoreboardService.cs"
click node_game_repository "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Repositories/GameRepository.cs"
click node_scoreboard_repository "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Repositories/ScoreboardRepository.cs"
click node_db_context "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Data/DbContext.cs"
click node_domain_models "https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Models/Game.cs"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_client_bootstrap,node_client_shell,node_game_ui,node_game_http_client,node_score_signal_client,node_client_models toneBlue
class node_api_host,node_games_controller,node_scoreboard_controller,node_scoreboard_hub,node_game_service,node_scoreboard_service toneAmber
class node_game_repository,node_scoreboard_repository,node_db_context,node_domain_models,node_migrations toneMint
class node_database toneNeutral
```

## Components

### Angular Browser Client

- [Browser bootstrap](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/main.ts): Angular entry point · `client-app/src/main.ts`
- [App shell and routes](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/app.config.ts): Angular composition · `client-app/src/app/app.config.ts`
- [Tic-Tac-Toe UI](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/components/tic-tac-toe/tic-tac-toe.ts): Angular component · `client-app/src/app/components/tic-tac-toe/tic-tac-toe.ts`
- [Game HTTP client](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/services/game.ts): Angular service · `client-app/src/app/services/game.ts`
- [Scoreboard SignalR client](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/services/ScoreBoardSignal.service.ts): Angular service · Consumes pushed scoreboard updates. · `client-app/src/app/services/ScoreBoardSignal.service.ts`
- [Game client models](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/client-app/src/app/models/Game.ts): TypeScript models · Game, move, and scoreboard payloads. · `client-app/src/app/models/Game.ts`

### ASP.NET Core API

- [API host and DI](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Program.cs): ASP.NET Core bootstrap · Configures routing, services, EF Core, and hub hosting. · `TicTacToeApp/API/Program.cs`
- [Games controller](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Controllers/GamesController.cs): REST controller · `TicTacToeApp/API/Controllers/GamesController.cs`
- [Scoreboard controller](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Controllers/ScoreboardController.cs): REST controller · `TicTacToeApp/API/Controllers/ScoreboardController.cs`
- [Scoreboard hub](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/WebSocket/ScoreboardHub.cs): SignalR hub · Pushes scoreboard events to connected browsers. · `TicTacToeApp/API/WebSocket/ScoreboardHub.cs`
- [Game service](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Services/GameService.cs): application service · Owns game lifecycle and move orchestration. · `TicTacToeApp/API/Services/GameService.cs`
- [Scoreboard service](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Services/ScoreboardService.cs): application service · Maintains and publishes scoreboard state. · `TicTacToeApp/API/Services/ScoreboardService.cs`

### Persistence

- [Game repository](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Repositories/GameRepository.cs): repository · `TicTacToeApp/API/Repositories/GameRepository.cs`
- [Scoreboard repository](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Repositories/ScoreboardRepository.cs): repository · `TicTacToeApp/API/Repositories/ScoreboardRepository.cs`
- [EF Core DbContext](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Data/DbContext.cs): persistence context · `TicTacToeApp/API/Data/DbContext.cs`
- [Game domain model](https://github.com/anshumandikshit/ticktacktoe-app/blob/master/TicTacToeApp/API/Models/Game.cs): EF Core entities · Persisted games, moves, scoreboard records, and game state enums. · `TicTacToeApp/API/Models/Game.cs`
- **Schema migrations**: EF Core migrations · Tracks game, move, scoreboard, session, and index evolution.

### Other components

- **Configured database**: external database

## Connections

- Browser bootstrap → App shell and routes: starts
- App shell and routes → Tic-Tac-Toe UI: routes to
- Tic-Tac-Toe UI → Game HTTP client: game requests
- Tic-Tac-Toe UI → Scoreboard SignalR client: score updates
- Tic-Tac-Toe UI → Game client models: uses
- Game HTTP client → Games controller: HTTP
- Game HTTP client → Scoreboard controller: HTTP
- Scoreboard SignalR client → Scoreboard hub: SignalR connection
- API host and DI → Games controller: hosts
- API host and DI → Scoreboard controller: hosts
- API host and DI → Scoreboard hub: hosts
- Games controller → Game service: delegates
- Scoreboard controller → Scoreboard service: delegates
- Game service → Game repository: persists games and moves
- Game service → Scoreboard service: updates on completion
- Scoreboard service → Scoreboard repository: persists scores
- Scoreboard service → Scoreboard hub: broadcasts updates
- Game repository → EF Core DbContext: queries
- Scoreboard repository → EF Core DbContext: queries
- EF Core DbContext → Game domain model: maps
- EF Core DbContext → Configured database: EF Core
- Schema migrations → EF Core DbContext: evolves schema