#!/usr/bin/env bash
# Comprehensive Configuration Validation Script
# Validates all configurations against master reference documents

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
source "${PROJECT_ROOT}/config/ip-addresses.conf" 2>/dev/null || true

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
CYAN='\033[0;36m'
NC='\033[0m'

log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
log_success() { echo -e "${GREEN}[✓]${NC} $1"; }
log_warn() { echo -e "${YELLOW}[⚠]${NC} $1"; }
log_error() { echo -e "${RED}[✗]${NC} $1"; }
log_section() { echo -e "\n${CYAN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"; echo -e "${CYAN}$1${NC}"; echo -e "${CYAN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}\n"; }

ERRORS=0
WARNINGS=0

log_section "Configuration Validation"

# 1. Validate VMID conflicts
log_info "1. Checking VMID conflicts..."
if bash "${SCRIPT_DIR}/check-vmid-conflicts.sh" 2>&1 | grep -q "No conflicts\|All verified"; then
    log_success "VMID conflicts: None"
else
    log_error "VMID conflicts detected"
    ((ERRORS++))
fi

# 2. Validate IP conflicts
log_info "2. Checking IP conflicts..."
if bash "${SCRIPT_DIR}/check-ip-conflicts.sh" 2>&1 | grep -q "No conflicts\|All verified"; then
    log_success "IP conflicts: None"
else
    log_error "IP conflicts detected"
    ((ERRORS++))
fi

# 3. Validate master documents exist
log_info "3. Validating master documents..."
MASTER_DOCS=(
    "docs/11-references/MASTER_VMID_INVENTORY.md"
    "docs/11-references/IP_ADDRESS_REGISTRY.md"
    "docs/11-references/NETWORK_CONFIGURATION_MASTER.md"
    "docs/11-references/SUBMODULE_RELATIONSHIP_MAP.md"
    "docs/11-references/CONFIGURATION_FILE_INVENTORY.md"
    "docs/11-references/PLACEHOLDER_IMPLEMENTATIONS.md"
)

for doc in "${MASTER_DOCS[@]}"; do
    if [ -f "${PROJECT_ROOT}/${doc}" ]; then
        log_success "Master document exists: ${doc}"
    else
        log_error "Master document missing: ${doc}"
        ((ERRORS++))
    fi
done

# 4. Validate IP configuration file
log_info "4. Validating IP configuration file..."
if [ -f "${PROJECT_ROOT}/config/ip-addresses.conf" ]; then
    log_success "IP configuration file exists"
    
    # Check for required variables
    REQUIRED_VARS=(
        "PROXMOX_HOST_ML110"
        "PROXMOX_HOST_R630_01"
        "PROXMOX_HOST_R630_02"
        "RPC_CORE_1"
        "IP_BLOCKSCOUT"
    )
    
    for var in "${REQUIRED_VARS[@]}"; do
        if grep -q "^${var}=" "${PROJECT_ROOT}/config/ip-addresses.conf"; then
            log_success "Required variable defined: ${var}"
        else
            log_warn "Required variable missing: ${var}"
            ((WARNINGS++))
        fi
    done
else
    log_error "IP configuration file missing"
    ((ERRORS++))
fi

# 5. Validate .gitmodules
log_info "5. Validating .gitmodules..."
if [ -f "${PROJECT_ROOT}/.gitmodules" ]; then
    log_success ".gitmodules exists"
    
    # Check for local paths
    if grep -q "url = \./" "${PROJECT_ROOT}/.gitmodules"; then
        log_warn "Local paths found in .gitmodules (explorer-monorepo)"
        ((WARNINGS++))
    fi
else
    log_error ".gitmodules missing"
    ((ERRORS++))
fi

# Summary
log_section "Validation Summary"

if [ $ERRORS -eq 0 ] && [ $WARNINGS -eq 0 ]; then
    log_success "All validations passed!"
    exit 0
elif [ $ERRORS -eq 0 ]; then
    log_warn "Validations passed with $WARNINGS warnings"
    exit 0
else
    log_error "Validation failed with $ERRORS errors and $WARNINGS warnings"
    exit 1
fi