git-github-setup.sh

#!/bin/bash

echo "🧹 Cleaning up old Git and GitHub configuration..."

# Backup old Git config if exists
if [ -f "$HOME/.gitconfig" ]; then
    cp "$HOME/.gitconfig" "$HOME/.gitconfig.backup.$(date +%s)"
    echo "🗃️ Existing Git config backed up."
fi

# Remove global git config settings
git config --global --unset-all user.name 2>/dev/null
git config --global --unset-all user.email 2>/dev/null
rm -f "$HOME/.gitconfig"

# Remove GitHub CLI auth data
if command -v gh >/dev/null 2>&1; then
    gh auth logout -h github.com --yes
    rm -rf ~/.config/gh
    echo "🔓 GitHub CLI auth cleaned."
fi

# Optional: clean Git credentials cache
rm -f ~/.git-credentials
git config --global --unset credential.helper 2>/dev/null

echo "🧼 All previous configs cleaned! Proceeding to new setup..."

# 1. Ask for GitHub username
read -rp "🧑 Enter your GitHub username: " github_user

# 2. Ask for GitHub email
read -rp "📧 Enter your GitHub email: " github_email

# 3. Set up Git config
git config --global user.name "$github_user"
git config --global user.email "$github_email"
echo "✅ Git global config updated!"

# 4. Detect installed browsers
echo "🌐 Detecting installed browsers..."

browsers=()
commands=("firefox" "google-chrome" "chromium" "brave-browser" "microsoft-edge" "vivaldi")

for cmd in "${commands[@]}"; do
    if command -v $cmd >/dev/null 2>&1; then
        browsers+=("$cmd")
    fi
done

if [ ${#browsers[@]} -eq 0 ]; then
    echo "❌ No supported browsers found!"
    exit 1
fi

echo "💻 Available browsers:"
for i in "${!browsers[@]}"; do
    echo "$((i+1)). ${browsers[$i]}"
done

read -rp "📦 Select browser number to use for GitHub login: " browser_choice
browser_index=$((browser_choice - 1))
selected_browser="${browsers[$browser_index]}"

echo "🖱️ You selected: $selected_browser"

# 5. GitHub authentication using gh CLI
if ! command -v gh >/dev/null 2>&1; then
    echo "⚠️ GitHub CLI (gh) not found! Installing..."
    sudo apt update && sudo apt install gh -y
fi

echo "🔐 Logging into GitHub..."

BROWSER="$selected_browser" gh auth login --hostname github.com --web

if [ $? -ne 0 ]; then
    echo "❌ GitHub authentication failed."
    exit 1
else
    echo "✅ GitHub successfully authenticated!"
fi

# 6. Optional: confirm setup with test repo
read -rp "📁 Do you want to create and push a test repo to GitHub? (y/n): " test_repo

if [[ "$test_repo" == "y" || "$test_repo" == "Y" ]]; then
    mkdir test-git-setup && cd test-git-setup || exit
    git init
    echo "# Test Repo" > README.md
    git add README.md
    git commit -m "Initial commit"
    gh repo create test-git-setup --private --source=. --remote=origin --push
    echo "🚀 Test repository pushed to GitHub!"
else
    echo "🎉 All done! Git and GitHub are now fully cleaned and configured."
fi