AI Programming Mentor Bot

An advanced Telegram bot built with Go that serves as a personal coding mentor. The system leverages OpenAI's LLMs to provide expert-level guidance, featuring persistent conversation history and a modular architecture.

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Key Features

• Interactive Specialization Selection: Users can choose their learning track (Go, Python, JS, C++, PHP, HTML/CSS) via a sleek, multi-row inline keyboard.
• Context-Aware Mentorship: The bot maintains the state of the selected programming language for each user, ensuring personalized guidance.
• Clean Architecture: Strictly follows a modular design (Domain, Repository, Application layers), making the codebase easy to scale and maintain.
• LLM Agnostic Design: Decoupled service layer allows seamless switching between AI providers (OpenAI, DeepSeek, Anthropic) without rewriting core logic.
• Persistent Storage: Full audit logs and user preferences are stored in a PostgreSQL database with high-performance interaction via the pgx driver.
• Rich UI/UX: Utilizes HTML-formatted responses and real-time callback feedback for a professional look and feel.

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Project Structure

Following the Standard Go Project Layout, the code is organized into logical layers:

ai-programming-mentor/
├── assets/            # UI screenshots and database previews
├── cmd/bot/           # Entry point: Bot initialization and update loop
├── internal/
│   └── domain/        # Core entities: Business models (Message, User)
│       └── repository/# Data Layer: PostgreSQL implementation (Save/Load logic)
├── migrations/        # SQL scripts: Schema definition and table structures
├── .env.example       # Environment configuration template
└── README.md          # Project documentation

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🛠 Tech Stack

• Language: Go (Golang) 1.21+

• Database: PostgreSQL

• AI Engine: OpenAI GPT-4o-mini

• APIs: Telegram Bot API v5

• Libraries: pgx/v5, godotenv, go-openai

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⚙️ Installation & Setup

1. Prerequisites

• Installed Go and PostgreSQL.

• API keys from OpenAI and Telegram (@BotFather).

2. Configuration

Clone the repository and create a .env file:

git clone [https://github.com/Endropr/ai-programming-mentor.git](https://github.com/Endropr/ai-programming-mentor.git)

cd ai-programming-mentor

cp .env.example .env

Fill in your credentials:

TELEGRAM_APITOKEN=your_token
OPENAI_API_KEY=your_key
DB_URL=postgres://user:password@localhost:5432/dbname

4. Running the Bot

go run cmd/bot/main.go

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📸 Project Demo & Database

Click to view bot interface and database logs

Bot Interface Preview

Figure 1: The interactive menu with 3x2 inline keyboard.

Database Logs (PostgreSQL)

Figure 2: The messages table tracking language selections (Python, HTML, C++, PHP).