#!/usr/bin/env bash
# Find all hardcoded IP addresses in scripts and configuration files
# Usage: ./scripts/find-hardcoded-ips.sh

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m'

echo "=== Hardcoded IP Address Finder ==="
echo ""

# IP patterns to find
IP_PATTERNS=(
    "192\.168\.11\.[0-9]+"
    "192\.168\.0\.[0-9]+"
    "76\.53\.10\.[0-9]+"
)

# File types to search
FILE_TYPES=(
    "*.sh"
    "*.py"
    "*.conf"
    "*.config"
    "*.env"
    "*.yaml"
    "*.yml"
    "*.json"
    "*.toml"
)

OUTPUT_FILE="$PROJECT_ROOT/reports/hardcoded-ips-report-$(date +%Y%m%d_%H%M%S).md"
mkdir -p "$(dirname "$OUTPUT_FILE")"

{
    echo "# Hardcoded IP Address Report"
    echo ""
    echo "**Generated:** $(date)"
    echo "**Purpose:** Identify all hardcoded IP addresses for centralization"
    echo ""
    echo "---"
    echo ""
} > "$OUTPUT_FILE"

TOTAL_FOUND=0

for pattern in "${IP_PATTERNS[@]}"; do
    echo "Searching for pattern: $pattern"
    
    {
        echo "## Pattern: \`$pattern\`"
        echo ""
    } >> "$OUTPUT_FILE"
    
    for file_type in "${FILE_TYPES[@]}"; do
        while IFS= read -r file; do
            if [ -f "$file" ]; then
                matches=$(grep -nE "$pattern" "$file" 2>/dev/null | grep -v "\.example\|\.template\|\.sample" || true)
                if [ -n "$matches" ]; then
                    count=$(echo "$matches" | wc -l)
                    TOTAL_FOUND=$((TOTAL_FOUND + count))
                    
                    {
                        echo "### \`$file\`"
                        echo ""
                        echo "Found $count occurrence(s):"
                        echo ""
                        echo '```'
                        echo "$matches" | head -10
                        echo '```'
                        echo ""
                    } >> "$OUTPUT_FILE"
                fi
            fi
        done < <(find "$PROJECT_ROOT" -type f -name "$file_type" ! -path "*/node_modules/*" ! -path "*/.git/*" ! -path "*/venv/*" 2>/dev/null)
    done
    
    echo "" >> "$OUTPUT_FILE"
done

{
    echo "---"
    echo ""
    echo "## Summary"
    echo ""
    echo "- **Total Hardcoded IPs Found:** $TOTAL_FOUND"
    echo "- **Recommendation:** Move all IPs to configuration files"
    echo "- **Configuration File:** Use \`docs/11-references/IP_ADDRESS_REGISTRY.md\` as reference"
    echo ""
} >> "$OUTPUT_FILE"

echo ""
echo -e "${GREEN}✅ Report generated: $OUTPUT_FILE${NC}"
echo -e "Total hardcoded IPs found: ${YELLOW}$TOTAL_FOUND${NC}"