#!/usr/bin/env python3
"""
Download sample documents for testing.
"""
import requests
import zipfile
from pathlib import Path
import sys
import os

# Add the parent directory to Python path so we can import config
sys.path.insert(0, str(Path(__file__).parent.parent))

from config import DATA_DIR

def download_sample_data():
    """Download a small sample dataset of documents."""
    
    # Sample documents (you can replace with your own dataset)
    sample_docs = [
        {
            "name": "machine_learning_intro.md",
            "content": """# Machine Learning Introduction
Machine learning is a subset of artificial intelligence that enables systems 
to learn and improve from experience without being explicitly programmed.

## Types of Machine Learning
1. Supervised Learning
2. Unsupervised Learning
3. Reinforcement Learning

## Applications
- Natural Language Processing
- Computer Vision
- Recommendation Systems
- Predictive Analytics"""
        },
        {
            "name": "fastapi_guide.md",
            "content": """# FastAPI Guide
FastAPI is a modern, fast web framework for building APIs with Python 3.7+.

## Key Features
- Fast: Very high performance
- Easy: Easy to use and learn
- Standards-based: Based on OpenAPI and JSON Schema

## Installation
`ash
pip install fastapi uvicorn
Basic Example
python
from fastapi import FastAPI

app = FastAPI()

@app.get("/")
def read_root():
    return {"Hello": "World"}
`"""
        },
        {
            "name": "python_basics.txt",
            "content": """Python Programming Basics

Python is an interpreted, high-level programming language known for its readability.
Key features include dynamic typing, automatic memory management, and support for multiple programming paradigms.

Data Types:
- Integers, Floats
- Strings
- Lists, Tuples
- Dictionaries
- Sets

Control Structures:
- if/else statements
- for loops
- while loops
- try/except blocks"""
        },
        {
            "name": "database_concepts.md",
            "content": """# Database Concepts

## SQL vs NoSQL
SQL databases are relational, NoSQL databases are non-relational.

## Common Databases
1. PostgreSQL
2. MySQL
3. MongoDB
4. Redis

## Indexing
Indexes improve query performance but slow down write operations.
Common index types: B-tree, Hash, Bitmap."""
        },
        {
            "name": "web_development.txt",
            "content": """Web Development Overview

Frontend: HTML, CSS, JavaScript
Backend: Python, Node.js, Java, Go
Databases: SQL, NoSQL
DevOps: Docker, Kubernetes, CI/CD

Frameworks:
- React, Vue, Angular (Frontend)
- Django, Flask, FastAPI (Python)
- Express.js (Node.js)
- Spring Boot (Java)"""
        }
    ]
    
    print(f"Creating sample documents in {DATA_DIR}...")
    DATA_DIR.mkdir(exist_ok=True)
    
    for doc in sample_docs:
        file_path = DATA_DIR / doc["name"]
        with open(file_path, 'w', encoding='utf-8') as f:
            f.write(doc["content"])
        print(f"  Created: {file_path}")
    
    # Create additional text files
    topics = ["ai", "databases", "web", "devops", "cloud", "security"]
    for i, topic in enumerate(topics):
        file_path = DATA_DIR / f"{topic}_overview.txt"
        content = f"# {topic.title()} Overview\n\n"
        content += f"This document discusses key concepts in {topic}.\n\n"
        content += "## Key Concepts\n"
        
        for j in range(1, 6):
            content += f"{j}. Important aspect {j} of {topic}\n"
            content += f"   - Detail {j}a about this aspect\n"
            content += f"   - Detail {j}b about this aspect\n"
            content += f"   - Detail {j}c about this aspect\n\n"
        
        content += "## Applications\n"
        content += f"- Application 1 of {topic}\n"
        content += f"- Application 2 of {topic}\n"
        content += f"- Application 3 of {topic}\n"
        
        with open(file_path, 'w', encoding='utf-8') as f:
            f.write(content)
        print(f"  Created: {file_path}")
    
    print(f"\nCreated {len(sample_docs) + len(topics)} sample documents in {DATA_DIR}")
    print("You can add your own documents to the data/ directory")

if __name__ == "__main__":
    download_sample_data()