get_coauthor.sh

get_coauthor() {
    local github_user="$1"
    if [[ -z "$github_user" ]]; then
        echo "Usage: get_coauthor <github_username>"
        echo "Example: get_coauthor mohamedawnallah"
        return 1
    fi

    # Normalize the input username.
    local normalized_input=$(echo "$github_user" | tr -d ' ' | tr '[:upper:]' '[:lower:]')

    # Try to find matching author by comparing normalized names
    local result=$(git log --all --format="%ae|%an" | while IFS='|' read -r email name; do
        # Normalize the git log name.
        local normalized_name=$(echo "$name" | tr -d ' ' | tr '[:upper:]' '[:lower:]')

        # Check if normalized names match.
        if [[ "$normalized_name" == *"$normalized_input"* ]]; then
            echo "$email|$name"
            break
        fi
    done)

    local email=""
    local full_name=""

    if [[ -n "$result" ]]; then
        email=$(echo "$result" | cut -d'|' -f1)
        full_name=$(echo "$result" | cut -d'|' -f2)
    else
        # Fallback to GitHub noreply email.
        email="${github_user}@users.noreply.github.com"
        full_name="$github_user"
    fi

    # Return the co-authored-by line.
    echo "Co-authored-by: $full_name <$email>"
}

# CoAuthor gets the coauthor GitHub template for a given user id.
alias coauthor='get_coauthor'