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CRUNCHYROLL DOWNLOADER - CHALLENGE 1 SOLUTION
Chapter 2: Configuration Management
Challenge: Config Class
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PROBLEM:
Create config.py with Config class that loads and stores credentials.

SOLUTION:
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File: config.py

import os
from pathlib import Path
from dotenv import load_dotenv

# Load .env from same directory as this file
ENV_FILE = Path(__file__).parent / ".env"
load_dotenv(ENV_FILE)

class Config:
    """Crunchyroll API configuration."""

    def __init__(self):
        """Load configuration from environment variables."""

        # Crunchyroll credentials
        self.email = os.environ.get('CRUNCHYROLL_EMAIL')
        self.password = os.environ.get('CRUNCHYROLL_PASSWORD')

        # API settings
        self.api_base = os.environ.get(
            'API_BASE_URL',
            'https://api.crunchyroll.com'
        )
        self.token_cache = os.environ.get(
            'TOKEN_CACHE_FILE',
            'token_cache.json'
        )

    def __str__(self):
        """String representation of config."""
        return f"""
Configuration:
  Email: {self.email}
  API Base: {self.api_base}
  Token Cache: {self.token_cache}
        """.strip()

    def display(self):
        """Display configuration (safely)."""
        print(f"📋 CONFIGURATION:")
        print(f"   Email: {self.email}")
        print(f"   API Base: {self.api_base}")
        print(f"   Token Cache: {self.token_cache}")


# Test
if __name__ == "__main__":
    config = Config()
    config.display()


EXPECTED OUTPUT
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📋 CONFIGURATION:
   Email: emubantam@gmail.com
   API Base: https://api.crunchyroll.com
   Token Cache: token_cache.json


KEY POINTS
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✅ Config class loads from .env
✅ Uses defaults if variables not found
✅ Keeps all settings in one place
✅ Easy to test and mock
✅ Passwords never printed in logs


HOW TO USE
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from config import Config

# Load configuration
config = Config()

# Access settings
print(config.email)           # Your email
print(config.api_base)        # API endpoint
print(config.token_cache)     # Where to save JWT


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