# abdalla-yousri/cpp-evolution-lab architecture

> Architecture diagram of the GitHub repository abdalla-yousri/cpp-evolution-lab, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-11). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/abdalla-yousri/cpp-evolution-lab
- Repository: https://github.com/abdalla-yousri/cpp-evolution-lab

## Overview

C++ Evolution Lab is a portfolio of five progressively planned blog-system versions, not one integrated application. The only substantial implemented workflow shown is v1 console registration/login with validation and text-file user records; v2 exposes an OOP design in headers but its executable entry point is still a placeholder. Versions 3–5 are documented capabilities whose sampled source files are placeholders, so those branches describe the roadmap rather than verified runtime behavior.

Main entry points: [`V2_Guardian_OOP Refactor/include/AuthManager.h`](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/AuthManager.h) (Auth Manager), [`V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp) (Login and Register), [`V3_Chronicle_Blog System`](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System) (Post Management), [`V2_Guardian_OOP Refactor/include/UserRepository.h`](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/UserRepository.h) (File Repository)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_foundation["V1 Foundations"]
  node_v1main["Menu Entry"]
  node_v1screen["Console Screens"]
  node_v1auth["Login and Register"]
  node_v1validate["Input Validation"]
  node_v1records[("User Records")]
  node_v1types["User Data Shape<br/>[header_functions.h]"]
end

subgraph group_oop["V2 OOP Design"]
  node_v2app["Application Menus<br/>[Application.h]"]
  node_v2auth["Auth Manager<br/>[AuthManager.h]"]
  node_v2user["User Model<br/>[User.h]"]
  node_v2repo[("File Repository<br/>[UserRepository.h]")]
  node_v2screen["Screen Utilities<br/>[Screen.h]"]
  node_v2validator["Registration Validator<br/>[Validator.h]"]
end

subgraph group_blog["V3 Blog Roadmap"]
  node_v3posts["Post Management"]
  node_v3comments["Comment Moderation"]
  node_v3roles["User Roles"]
  node_v3search["Content Search"]
end

subgraph group_ui["V4 UI Roadmap"]
  node_v4gui["Modern Interface"]
  node_v4editor["Rich Text Editor"]
  node_v4themes["Themes and Access"]
end

subgraph group_data["V5 Data Roadmap"]
  node_v5database[("Database Storage")]
  node_v5migration["Migration and Recovery"]
  node_v5security["SQL and Transactions"]
end

node_visitor(("Console User"))

node_visitor -->|"starts session"| node_v1main
node_v1main -->|"shows menu"| node_v1screen
node_v1main -->|"dispatches choice"| node_v1auth
node_v1auth -->|"validates input"| node_v1validate
node_v1auth -->|"reads and writes"| node_v1records
node_v1auth -->|"uses user data"| node_v1types
node_v2app -->|"owns auth"| node_v2auth
node_v2app -->|"owns repository"| node_v2repo
node_v2auth -->|"uses repository"| node_v2repo
node_v2auth -->|"tracks session user"| node_v2user
node_v2auth -.->|"prompts through"| node_v2screen
node_v2auth -.->|"validates through"| node_v2validator
node_v2repo -->|"serializes users"| node_v2user
node_v3posts -.->|"supports comments"| node_v3comments
node_v3posts -.->|"applies permissions"| node_v3roles
node_v3posts -.->|"supports search"| node_v3search
node_v4gui -.->|"provides editor"| node_v4editor
node_v4gui -.->|"supports themes"| node_v4themes
node_v5database -.->|"planned data lifecycle"| node_v5migration
node_v5database -.->|"planned safeguards"| node_v5security

click node_v1main "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp"
click node_v1screen "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp"
click node_v1auth "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp"
click node_v1validate "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp"
click node_v1records "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp"
click node_v1types "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/header_functions.h"
click node_v2app "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/Application.h"
click node_v2auth "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/AuthManager.h"
click node_v2user "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/User.h"
click node_v2repo "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/UserRepository.h"
click node_v2screen "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/Screen.h"
click node_v2validator "https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/Validator.h"
click node_v3posts "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System"
click node_v3comments "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System"
click node_v3roles "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System"
click node_v3search "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System"
click node_v4gui "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V4_Aesthetic_Modern%20UI"
click node_v4editor "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V4_Aesthetic_Modern%20UI"
click node_v4themes "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V4_Aesthetic_Modern%20UI"
click node_v5database "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V5_Nexus_Database%20Integration"
click node_v5migration "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V5_Nexus_Database%20Integration"
click node_v5security "https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V5_Nexus_Database%20Integration"

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_v1main,node_v1screen,node_v1auth,node_v1validate,node_v1records,node_v1types,node_visitor toneBlue
class node_v2app,node_v2auth,node_v2user,node_v2repo,node_v2screen,node_v2validator toneAmber
class node_v3posts,node_v3comments,node_v3roles,node_v3search toneMint
class node_v4gui,node_v4editor,node_v4themes toneRose
class node_v5database,node_v5migration,node_v5security toneIndigo
```

## Components

### V1 Foundations

- [Menu Entry](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp): `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`
- [Console Screens](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp): `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`
- [Login and Register](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp): `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`
- [Input Validation](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp): `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`
- [User Records](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp): `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`
- [User Data Shape](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V1_Foundations_UserLoginSystem/header_functions.h): `V1_Foundations_UserLoginSystem/header_functions.h`

### V2 OOP Design

- [Application Menus](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/Application.h): `V2_Guardian_OOP Refactor/include/Application.h`
- [Auth Manager](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/AuthManager.h): `V2_Guardian_OOP Refactor/include/AuthManager.h`
- [User Model](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/User.h): `V2_Guardian_OOP Refactor/include/User.h`
- [File Repository](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/UserRepository.h): `V2_Guardian_OOP Refactor/include/UserRepository.h`
- [Screen Utilities](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/Screen.h): `V2_Guardian_OOP Refactor/include/Screen.h`
- [Registration Validator](https://github.com/abdalla-yousri/cpp-evolution-lab/blob/master/V2_Guardian_OOP%20Refactor/include/Validator.h): `V2_Guardian_OOP Refactor/include/Validator.h`

### V3 Blog Roadmap

- [Post Management](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System): `V3_Chronicle_Blog System`
- [Comment Moderation](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System): `V3_Chronicle_Blog System`
- [User Roles](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System): `V3_Chronicle_Blog System`
- [Content Search](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V3_Chronicle_Blog%20System): `V3_Chronicle_Blog System`

### V4 UI Roadmap

- [Modern Interface](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V4_Aesthetic_Modern%20UI): `V4_Aesthetic_Modern UI`
- [Rich Text Editor](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V4_Aesthetic_Modern%20UI): `V4_Aesthetic_Modern UI`
- [Themes and Access](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V4_Aesthetic_Modern%20UI): `V4_Aesthetic_Modern UI`

### V5 Data Roadmap

- [Database Storage](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V5_Nexus_Database%20Integration): `V5_Nexus_Database Integration`
- [Migration and Recovery](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V5_Nexus_Database%20Integration): `V5_Nexus_Database Integration`
- [SQL and Transactions](https://github.com/abdalla-yousri/cpp-evolution-lab/tree/master/V5_Nexus_Database%20Integration): `V5_Nexus_Database Integration`

### Other components

- **Console User**

## Connections

- Console User → Menu Entry: starts session (evidence: `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`)
- Menu Entry → Console Screens: shows menu (evidence: `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`)
- Menu Entry → Login and Register: dispatches choice (evidence: `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`)
- Login and Register → Input Validation: validates input (evidence: `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`)
- Login and Register → User Records: reads and writes (evidence: `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`)
- Login and Register → User Data Shape: uses user data (evidence: `V1_Foundations_UserLoginSystem/V1_Foundations_UserLoginSystem.cpp`)
- Application Menus → Auth Manager: owns auth (evidence: `V2_Guardian_OOP Refactor/include/Application.h`)
- Application Menus → File Repository: owns repository (evidence: `V2_Guardian_OOP Refactor/include/Application.h`)
- Auth Manager → File Repository: uses repository (evidence: `V2_Guardian_OOP Refactor/include/AuthManager.h`)
- Auth Manager → User Model: tracks session user (evidence: `V2_Guardian_OOP Refactor/include/AuthManager.h`)
- Auth Manager → Screen Utilities: prompts through
- Auth Manager → Registration Validator: validates through
- File Repository → User Model: serializes users (evidence: `V2_Guardian_OOP Refactor/include/UserRepository.h`)
- Post Management → Comment Moderation: supports comments (evidence: `README.md`)
- Post Management → User Roles: applies permissions (evidence: `README.md`)
- Post Management → Content Search: supports search (evidence: `README.md`)
- Modern Interface → Rich Text Editor: provides editor (evidence: `README.md`)
- Modern Interface → Themes and Access: supports themes (evidence: `README.md`)
- Database Storage → Migration and Recovery: planned data lifecycle (evidence: `README.md`)
- Database Storage → SQL and Transactions: planned safeguards (evidence: `README.md`)