#!/bin/bash
# scripts/00-check-dependencies.sh - Check for required dependencies

set -euo pipefail

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

check_dependencies() {
    log_info "Checking dependencies..."
    
    local missing_deps=()
    
    # Check for git
    if ! command_exists git; then
        missing_deps+=("git")
    fi
    
    # Check for stow
    if ! command_exists stow; then
        missing_deps+=("stow")
    fi
    
    if [ ${#missing_deps[@]} -gt 0 ]; then
        log_error "Missing required dependencies: ${missing_deps[*]}"
        echo ""
        echo "Please install the missing dependencies:"
        
        for dep in "${missing_deps[@]}"; do
            case "$dep" in
                "git")
                    echo "  Git:"
                    echo "    Ubuntu/Debian: sudo apt install git"
                    echo "    macOS: brew install git"
                    echo "    Or visit: https://git-scm.com/downloads"
                    ;;
                "stow")
                    echo "  GNU Stow:"
                    echo "    Ubuntu/Debian: sudo apt install stow"
                    echo "    macOS: brew install stow"
                    echo "    Or use the alias: install_stow"
                    ;;
            esac
            echo ""
        done
        
        return 1
    fi
    
    log_success "All dependencies satisfied"
}

# Run if called directly
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    check_dependencies
fi