PRIVATE REPOS QUICK SETUP

#!/bin/bash
# Quick setup for private repository merging
# This script handles GitHub authentication and setup

set -e

echo "🔒 Private Repository Merge Setup"
echo "=================================="
echo ""

# Check if GITHUB_TOKEN is already set
if [ -n "$GITHUB_TOKEN" ]; then
    echo "✓ GITHUB_TOKEN already set in environment"
else
    echo "GitHub Personal Access Token required for private repos"
    echo ""
    echo "To create a token:"
    echo "1. Go to: https://github.com/settings/tokens"
    echo "2. Click 'Generate new token (classic)'"
    echo "3. Select scopes: 'repo' (full control)"
    echo "4. Copy the token"
    echo ""
    read -p "Enter your GitHub token: " -s token
    echo ""
    
    export GITHUB_TOKEN="$token"
    
    # Save to ~/.bashrc or ~/.zshrc for persistence
    read -p "Save token to shell profile? (y/N) " -n 1 -r
    echo ""
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        if [ -f ~/.bashrc ]; then
            echo "export GITHUB_TOKEN='$token'" >> ~/.bashrc
            echo "✓ Saved to ~/.bashrc"
        elif [ -f ~/.zshrc ]; then
            echo "export GITHUB_TOKEN='$token'" >> ~/.zshrc
            echo "✓ Saved to ~/.zshrc"
        fi
    fi
fi

# Verify token works
echo ""
echo "Verifying token..."
response=$(curl -s -H "Authorization: token $GITHUB_TOKEN" https://api.github.com/user)

if echo "$response" | grep -q "login"; then
    username=$(echo "$response" | grep -o '"login": *"[^"]*"' | sed 's/"login": *"\(.*\)"/\1/')
    echo "✓ Token valid! Authenticated as: $username"
else
    echo "✗ Token invalid or expired"
    exit 1
fi

# Check rate limit
echo ""
echo "Checking API rate limits..."
rate_info=$(curl -s -H "Authorization: token $GITHUB_TOKEN" https://api.github.com/rate_limit)
remaining=$(echo "$rate_info" | grep -o '"remaining": *[0-9]*' | head -1 | grep -o '[0-9]*')
limit=$(echo "$rate_info" | grep -o '"limit": *[0-9]*' | head -1 | grep -o '[0-9]*')

echo "Rate limit: $remaining / $limit remaining"

if [ "$remaining" -lt 100 ]; then
    echo "⚠️  Warning: Low rate limit remaining"
    echo "Consider waiting or using a different token"
fi

# Get organization access
echo ""
read -p "Enter your GitHub organization name: " org_name

echo ""
echo "Fetching accessible repositories..."
repos_response=$(curl -s -H "Authorization: token $GITHUB_TOKEN" \
    "https://api.github.com/orgs/$org_name/repos?per_page=1")

if echo "$repos_response" | grep -q "Not Found"; then
    echo "✗ Organization '$org_name' not found or token lacks access"
    echo ""
    echo "Make sure:"
    echo "1. Organization name is correct"
    echo "2. Token has 'repo' scope"
    echo "3. You're a member of the organization"
    exit 1
fi

echo "✓ Access to '$org_name' confirmed"

# Generate repo list
echo ""
echo "Generating repository list..."
python3 generate-repo-list.py "$org_name" --token "$GITHUB_TOKEN"

if [ -f "repos-list.txt" ]; then
    repo_count=$(grep -c "^https://" repos-list.txt || echo "0")
    echo ""
    echo "✓ Found $repo_count repositories"
    echo "✓ Created: repos-list.txt"
fi

# Setup git credentials
echo ""
echo "Configuring git credentials..."
git config --global credential.helper store

# Create credentials file
mkdir -p ~/.git-credentials-backup
if [ -f ~/.git-credentials ]; then
    cp ~/.git-credentials ~/.git-credentials-backup/backup-$(date +%s)
fi

echo "https://${GITHUB_TOKEN}@github.com" > ~/.git-credentials
chmod 600 ~/.git-credentials
echo "✓ Git credentials configured"

# Final instructions
echo ""
echo "======================================"
echo "✓ Setup complete!"
echo "======================================"
echo ""
echo "Next steps:"
echo "1. Review repos-list.txt (optional)"
echo "   nano repos-list.txt"
echo ""
echo "2. Start the merge:"
echo "   ./merge-repos.sh repos-list.txt"
echo ""
echo "3. Monitor progress in merge-logs/"
echo ""
echo "Note: Your token is stored in:"
echo "  - Environment variable (this session)"
echo "  - ~/.git-credentials (for git operations)"

# Offer to start merge
echo ""
read -p "Start merge now? (y/N) " -n 1 -r
echo ""
if [[ $REPLY =~ ^[Yy]$ ]]; then
    if [ -f "repos-list.txt" ] && [ -f "merge-repos.sh" ]; then
        chmod +x merge-repos.sh
        ./merge-repos.sh repos-list.txt
    else
        echo "✗ Required files not found"
        echo "Make sure merge-repos.sh exists"
    fi
fi