#!/usr/bin/env bash
# Network Utility Functions
# Consolidated functions from small network-related scripts
# Usage: source "$(dirname "${BASH_SOURCE[0]}")/../utils/network-utils.sh"

set -euo pipefail

# Load shared modules
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
source "$SCRIPT_DIR/../lib/ip-config.sh" 2>/dev/null || true
source "$SCRIPT_DIR/../lib/logging.sh" 2>/dev/null || true

# Test network connectivity
network_test() {
    local ip="$1"
    local port="${2:-}"
    
    if [ -n "$port" ]; then
        if timeout 2 bash -c "</dev/tcp/$ip/$port" 2>/dev/null; then
            log_success "Network connectivity OK: $ip:$port"
            return 0
        else
            log_error "Network connectivity FAILED: $ip:$port"
            return 1
        fi
    else
        if ping -c 2 -W 2 "$ip" >/dev/null 2>&1; then
            log_success "Network reachable: $ip"
            return 0
        else
            log_error "Network unreachable: $ip"
            return 1
        fi
    fi
}

# Get IP address
network_get_ip() {
    local interface="${1:-eth0}"
    ip addr show "$interface" 2>/dev/null | grep -oP 'inet \K[\d.]+' | head -1
}

# Check DNS resolution
network_check_dns() {
    local hostname="$1"
    if host "$hostname" >/dev/null 2>&1; then
        log_success "DNS resolution OK: $hostname"
        return 0
    else
        log_error "DNS resolution FAILED: $hostname"
        return 1
    fi
}