graph LR
subgraph 1["Client Core & State"]
1__1_1["Routing & Layout Engine"]
1__1_2["User Identity & Session Management"]
1__1_3["Global UI State Control"]
1__1_2 -->|"Provides user profile data and authentication status to determine route accessibility and to popula…"| 1__1_1
1__1_3 -->|"Injects interaction constraints into the Layout and page-level components to disable navigation or …"| 1__1_1
1__1_1 -->|"Triggers profile-related UI updates based on the current navigation context or page requirements."| 1__1_2
1__1_2 -->|"calls"| 1__1_3
1__1_3 -->|"calls"| 1__1_2
end
subgraph 2["Shared UI Components"]
2__2_1["Search & Layout Framework"]
2__2_2["Roulette Animation Engine"]
2__2_3["User Identity UI"]
2__2_4["Social Activity Feed"]
2__2_1 -->|"Passes filtered restaurant lists and calculated geometry data to the wheel for visualization"| 2__2_2
2__2_1 -->|"Provides the layout container and structural placement for the activity feed within the main UI"| 2__2_4
2__2_3 -->|"Injects user session data into the layout (e.g., header profile display) and influences search pref…"| 2__2_1
2__2_2 -->|"Triggers state updates or event notifications upon spin completion that eventually populate the act…"| 2__2_4
2__2_2 -->|"calls"| 2__2_1
end
subgraph 3["Spin Feature Module"]
3__3_1["Spin Logic & State Orchestration"]
3__3_2["Spin Data Management"]
3__3_2 -->|"Provides the raw restaurant data and spin history required to populate the filtering pool and selec…"| 3__3_1
3__3_1 -->|"Triggers data retrieval operations during the component lifecycle (e.g., on mount or manual refresh…"| 3__3_2
end
subgraph 4["Management & History Module"]
4__4_1["Restaurant Inventory Manager"]
4__4_2["System Administration Hub"]
4__4_3["Activity & History Tracker"]
4__4_2 -->|"Administrators use the dashboard to toggle the availability of specific restaurants and monitor inv…"| 4__4_1
4__4_1 -->|"Modifications to the restaurant list (adds, edits, deletions) generate events that are published to…"| 4__4_3
4__4_2 -->|"The dashboard consumes aggregated usage data and spin logs to inform administrative decisions regar…"| 4__4_3
end
subgraph 5["Backend API & Business Logic"]
5__5_1["API Gateway & Domain Controllers"]
5__5_2["Spin Selection Engine"]
5__5_3["External Data & Enrichment Service"]
5__5_1 -->|"invokes selection algorithm when a user POSTs to the /spins endpoint"| 5__5_2
5__5_1 -->|"triggers external searches and Smart Fill operations to discover or enrich records"| 5__5_3
end
subgraph 6["Infrastructure & Data Layer"]
6__6_1["Server Lifecycle Manager"]
6__6_2["Database Connection Pool"]
6__6_3["Schema Migration Engine"]
6__6_4["Data Seeding Utility"]
6__6_1 -->|"Triggers schema validation and updates as a blocking step during the server startup sequence."| 6__6_3
6__6_1 -->|"Initializes the shared connection pool and performs a connectivity test before accepting requests."| 6__6_2
6__6_3 -->|"Utilizes the shared pool to execute DDL (Data Definition Language) commands and schema updates."| 6__6_2
6__6_4 -->|"Acquires connections from the pool to perform bulk data insertions and environment resets."| 6__6_2
6__6_2 -->|"calls"| 6__6_3
6__6_4 -->|"calls"| 6__6_1
end
1 -->|"Orchestrates navigation and provides global user state"| 3
1 -->|"Orchestrates navigation and provides administrative context"| 4
3 -->|"Triggers the Roulette Wheel animation and uses search components"| 2
3 -->|"Requests spin results and fetches eligible restaurant data"| 5
4 -->|"Performs CRUD operations on restaurants and retrieves activity logs"| 5
5 -->|"Executes queries against the PostgreSQL database and manages data persistence"| 6
1 -->|"calls"| 2
2 -->|"calls"| 1
4 -->|"calls"| 2
The codemate-7-app follows a classic Client-Server architecture where a React-based frontend interacts with an Express/Node.js backend. The data flow is centered around the "Spin" interaction: the Client Core manages global state and routing, directing users to the Spin Feature Module or Management & History pages. These feature modules utilize a Shared UI Library for complex visualizations (like the Roulette Wheel) and communicate with the Backend API to execute business logic (the spin algorithm) and persist data. The backend relies on an Infrastructure & Data Layer for database connectivity and external service integrations (Google Places).
The foundational layer of the frontend, responsible for application routing, global user context, and high-level state management.
- Routing & Layout Engine — Manages the high-level navigation structure and the visual shell of the application.
- User Identity & Session Management — Responsible for maintaining the global state of the current user, including profile information and session persistence.
- Global UI State Control — Manages non-domain global states that affect the interactivity of the application.
A library of reusable presentation components and utility functions, including the core Roulette Wheel visualization and restaurant search interface.
- Search & Layout Framework — Provides the structural foundation of the application, including the global layout and the restaurant search interface.
- Roulette Animation Engine — Manages the high-fidelity roulette wheel visualization.
- User Identity UI — Handles the interactive elements for user identification and session management.
- Social Activity Feed — Visualizes the real-time social aspect of the application.
Encapsulates the primary interactive logic of the application, handling restaurant filtering, spin execution, and the orchestration of the "Spin" lifecycle.
- Spin Logic & State Orchestration — This component manages the core business logic of the spin feature, including the reactive filtering of restaurants and the orchestration of the spin execution lifecycle.
- Spin Data Management — This component encapsulates the data-fetching layer of the Spin module.
Handles secondary application features including restaurant CRUD operations, administrative dashboards, and historical data views like the Activity Feed and Spin Log.
- Restaurant Inventory Manager — Responsible for the lifecycle management of the restaurant database, providing interfaces for manual entry, search-based selection, and metadata enrichment (tagging and rating).
- System Administration Hub — Acts as the central control point for system-wide configurations, user permission management, and the enforcement of operational constraints like spin limits.
- Activity & History Tracker — Aggregates and transforms raw system logs into human-readable chronological feeds and specialized logs, providing transparency into user actions and spin results.
The server-side core containing RESTful endpoints, the proprietary spin selection algorithm, and integrations with external APIs like Google Places.
- API Gateway & Domain Controllers — Acts as the primary entry point for the backend, exposing RESTful endpoints that map HTTP verbs to domain-specific operations.
- Spin Selection Engine — Encapsulates the proprietary business logic that defines the application's unique value proposition.
- External Data & Enrichment Service — Manages interactions with the Google Places API and handles data processing to maintain a clean local database, including geocoding, "Smart Fill" searches, and deduplication.
Manages the server lifecycle, database connection pooling, schema migrations, and environment-specific seeding scripts.
- Server Lifecycle Manager — Orchestrates the application boot sequence, configuring Express middleware, static asset serving, and coordinating the initialization of other infrastructure components.
- Database Connection Pool — Encapsulates the pg library's pooling logic to provide efficient, shared access to the PostgreSQL database while managing connection health and SSL configurations.
- Schema Migration Engine — Responsible for applying the base SQL schema and incremental updates (migrations) to ensure the database structure remains consistent with the application code.
- Data Seeding Utility — Provides standalone scripts and maintenance routines for populating the database with test scenarios and performing data cleanup during development and testing.