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

# Validate config file
config_validate() {
    local config_file="$1"
    
    if [ -f "$config_file" ]; then
        log_success "Configuration file exists: $config_file"
        return 0
    else
        log_error "Configuration file missing: $config_file"
        return 1
    fi
}

# Backup config file
config_backup() {
    local config_file="$1"
    local backup_file="${config_file}.backup.$(date +%Y%m%d_%H%M%S)"
    
    if [ -f "$config_file" ]; then
        cp "$config_file" "$backup_file"
        log_success "Backed up: $config_file → $backup_file"
        return 0
    else
        log_error "Config file not found: $config_file"
        return 1
    fi
}

# Get config value
config_get() {
    local config_file="$1"
    local key="$2"
    
    if [ -f "$config_file" ]; then
        grep "^${key}=" "$config_file" | cut -d'=' -f2- | sed 's/^["'\'']//;s/["'\'']$//'
    fi
}

# Set config value
config_set() {
    local config_file="$1"
    local key="$2"
    local value="$3"
    
    if [ -f "$config_file" ]; then
        if grep -q "^${key}=" "$config_file"; then
            sed -i "s|^${key}=.*|${key}=${value}|" "$config_file"
        else
            echo "${key}=${value}" >> "$config_file"
        fi
        log_success "Set ${key}=${value} in $config_file"
    else
        log_error "Config file not found: $config_file"
        return 1
    fi
}