#!/bin/bash
# GitHub Setup Script for PetBot
# Run this script after creating your GitHub repository and setting up authentication

echo "🚀 PetBot GitHub Setup"
echo "======================"

# Check if we're in a git repository
if [ ! -d ".git" ]; then
    echo "❌ Error: Not in a git repository"
    exit 1
fi

echo "🔐 GitHub Authentication Setup Required"
echo "======================================="
echo ""
echo "GitHub requires secure authentication. Choose one option:"
echo ""
echo "Option 1: SSH Key (Recommended)"
echo "  • More secure and convenient"
echo "  • No password prompts after setup"
echo "  • Repository URL format: git@github.com:username/repo.git"
echo ""
echo "Option 2: Personal Access Token"
echo "  • Use HTTPS with token instead of password"
echo "  • Repository URL format: https://github.com/username/repo.git"
echo ""
echo "📖 Setup guides:"
echo "  SSH Keys: https://docs.github.com/en/authentication/connecting-to-github-with-ssh"
echo "  Access Tokens: https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token"
echo ""

# Ask user which method they want to use
echo "Which authentication method did you set up?"
echo "1) SSH Key"
echo "2) Personal Access Token (HTTPS)"
read -p "Enter choice (1 or 2): " AUTH_CHOICE

case $AUTH_CHOICE in
    1)
        echo ""
        echo "📝 Enter your SSH repository URL:"
        echo "   Format: git@github.com:yourusername/petbot-irc-game.git"
        read -p "SSH URL: " REPO_URL
        
        if [[ ! "$REPO_URL" =~ ^git@github\.com: ]]; then
            echo "❌ Error: Please use SSH URL format (git@github.com:username/repo.git)"
            exit 1
        fi
        ;;
    2)
        echo ""
        echo "📝 Enter your HTTPS repository URL:"
        echo "   Format: https://github.com/yourusername/petbot-irc-game.git"
        read -p "HTTPS URL: " REPO_URL
        
        if [[ ! "$REPO_URL" =~ ^https://github\.com/ ]]; then
            echo "❌ Error: Please use HTTPS URL format (https://github.com/username/repo.git)"
            exit 1
        fi
        
        echo ""
        echo "⚠️  Important: When prompted for password, use your Personal Access Token"
        echo "   Do NOT use your GitHub account password"
        ;;
    *)
        echo "❌ Invalid choice"
        exit 1
        ;;
esac

if [ -z "$REPO_URL" ]; then
    echo "❌ Error: No URL provided"
    exit 1
fi

# Test GitHub connection
echo ""
echo "🔍 Testing GitHub connection..."
if [ "$AUTH_CHOICE" = "1" ]; then
    ssh -T git@github.com 2>/dev/null
    if [ $? -ne 1 ]; then
        echo "❌ SSH connection test failed. Please check your SSH key setup."
        echo "   Guide: https://docs.github.com/en/authentication/connecting-to-github-with-ssh"
        exit 1
    fi
    echo "✅ SSH connection successful"
else
    echo "⚠️  HTTPS connection will be tested during push"
fi

# Add remote origin
echo ""
echo "🔗 Adding GitHub remote..."
git remote add origin "$REPO_URL" 2>/dev/null || {
    echo "🔄 Remote already exists, updating..."
    git remote set-url origin "$REPO_URL"
}

# Push to GitHub
echo "⬆️  Pushing to GitHub..."
if ! git push -u origin main; then
    echo ""
    echo "❌ Push failed. Common solutions:"
    if [ "$AUTH_CHOICE" = "1" ]; then
        echo "  • Check SSH key is added to GitHub: https://github.com/settings/keys"
        echo "  • Verify SSH agent is running: ssh-add -l"
    else
        echo "  • Use Personal Access Token as password (not account password)"
        echo "  • Create token at: https://github.com/settings/tokens"
        echo "  • Token needs 'repo' scope for private repos"
    fi
    echo "  • Verify repository exists and you have write access"
    exit 1
fi

# Push tags
echo "🏷️  Pushing tags..."
git push --tags

echo ""
echo "✅ Setup complete!"
echo ""
echo "🎯 Your repository is now on GitHub:"
echo "   Repository: $REPO_URL"
echo "   Current version: v0.1.0"
echo "   Authentication: $([ "$AUTH_CHOICE" = "1" ] && echo "SSH Key" || echo "Personal Access Token")"
echo ""
echo "🔄 Future updates will be automatic:"
echo "   - Claude will commit changes with descriptive messages"
echo "   - Changelog will be updated automatically"
echo "   - Version tags will be created for releases"
echo "   - All changes will be pushed to GitHub"
echo ""
echo "📚 Useful commands:"
echo "   git status          - Check repository status"
echo "   git log --oneline   - View commit history"
echo "   git tag -l          - List all version tags"