#!/bin/bash
# scripts/10-backup-files.sh - Backup existing files that would conflict

set -euo pipefail

# Source utilities
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/utils.sh"

backup_files() {
    local dotfiles_dir="$1"
    
    log_info "Checking for file conflicts..."
    
    # Files that might conflict with stow
    local files_to_check=(.bashrc .bash_aliases .inputrc .gitconfig)
    local backed_up=()
    
    for file in "${files_to_check[@]}"; do
        if [ -f "$HOME/$file" ] && [ ! -L "$HOME/$file" ]; then
            log_warning "Backing up existing file: $HOME/$file -> $HOME/${file}.bak"
            mv "$HOME/$file" "$HOME/${file}.bak"
            backed_up+=("$file")
        fi
    done
    
    if [ ${#backed_up[@]} -gt 0 ]; then
        log_info "Backed up ${#backed_up[@]} file(s): ${backed_up[*]}"
    else
        log_info "No file conflicts found"
    fi
}

# Run if called directly
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    if [ $# -ne 1 ]; then
        log_error "Usage: $0 <dotfiles_directory>"
        exit 1
    fi
    backup_files "$1"
fi