#!/usr/bin/env python3
"""
Validate service modules configuration.

Checks:
- All services have required fields
- Port conflicts
- Technology stack completeness
- Regulation mappings validity
"""

import sys
from pathlib import Path
from collections import defaultdict
from typing import Dict, List

sys.path.insert(0, str(Path(__file__).parent.parent.parent))

from compliance.data.service_modules import (
    BREAKPILOT_SERVICES,
    get_service_count,
    get_services_by_type,
    get_services_processing_pii,
    get_services_with_ai,
    get_critical_services
)
from compliance.data.regulations import REGULATIONS_SEED

# Color codes for output
GREEN = '\033[92m'
YELLOW = '\033[93m'
RED = '\033[91m'
RESET = '\033[0m'


def validate_required_fields():
    """Validate that all services have required fields."""
    print(f"\n{GREEN}=== Validating Required Fields ==={RESET}")
    errors = []

    required_fields = ["name", "display_name", "service_type", "technology_stack"]

    for service in BREAKPILOT_SERVICES:
        for field in required_fields:
            if field not in service or not service[field]:
                errors.append(f"  {RED}✗{RESET} Service '{service.get('name', 'UNKNOWN')}' missing required field: {field}")

    if errors:
        print(f"\n{RED}Found {len(errors)} errors:{RESET}")
        for error in errors:
            print(error)
        return False
    else:
        print(f"{GREEN}✓ All services have required fields{RESET}")
        return True


def validate_port_conflicts():
    """Check for port conflicts."""
    print(f"\n{GREEN}=== Checking Port Conflicts ==={RESET}")
    port_map: Dict[int, List[str]] = defaultdict(list)
    warnings = []

    for service in BREAKPILOT_SERVICES:
        port = service.get("port")
        if port:
            port_map[port].append(service["name"])

    for port, services in port_map.items():
        if len(services) > 1:
            warnings.append(f"  {YELLOW}⚠{RESET} Port {port} used by multiple services: {', '.join(services)}")

    if warnings:
        print(f"\n{YELLOW}Found {len(warnings)} port conflicts:{RESET}")
        for warning in warnings:
            print(warning)
        return False
    else:
        print(f"{GREEN}✓ No port conflicts detected{RESET}")
        return True


def validate_regulation_mappings():
    """Validate that all regulation codes exist."""
    print(f"\n{GREEN}=== Validating Regulation Mappings ==={RESET}")
    valid_regulation_codes = {reg["code"] for reg in REGULATIONS_SEED}
    errors = []

    for service in BREAKPILOT_SERVICES:
        regulations = service.get("regulations", [])
        for reg_mapping in regulations:
            reg_code = reg_mapping.get("code")
            if reg_code not in valid_regulation_codes:
                errors.append(
                    f"  {RED}✗{RESET} Service '{service['name']}' references unknown regulation: {reg_code}"
                )

            # Check for relevance field
            if "relevance" not in reg_mapping:
                errors.append(
                    f"  {RED}✗{RESET} Service '{service['name']}' regulation mapping for {reg_code} missing 'relevance'"
                )

    if errors:
        print(f"\n{RED}Found {len(errors)} regulation mapping errors:{RESET}")
        for error in errors:
            print(error)
        return False
    else:
        print(f"{GREEN}✓ All regulation mappings are valid{RESET}")
        return True


def print_statistics():
    """Print statistics about the service registry."""
    print(f"\n{GREEN}=== Service Module Statistics ==={RESET}")

    total = get_service_count()
    print(f"\nTotal Services: {total}")

    # By type
    print(f"\n{GREEN}By Type:{RESET}")
    service_types = ["backend", "database", "ai", "communication", "storage", "infrastructure", "monitoring", "security"]
    for stype in service_types:
        count = len(get_services_by_type(stype))
        if count > 0:
            print(f"  - {stype.capitalize()}: {count}")

    # PII processing
    pii_count = len(get_services_processing_pii())
    print(f"\n{GREEN}Data Processing:{RESET}")
    print(f"  - Processing PII: {pii_count}")
    print(f"  - AI Components: {len(get_services_with_ai())}")

    # Criticality
    critical_count = len(get_critical_services())
    print(f"\n{GREEN}Criticality:{RESET}")
    print(f"  - Critical Services: {critical_count}")

    # Ports
    services_with_ports = [s for s in BREAKPILOT_SERVICES if s.get("port")]
    print(f"\n{GREEN}Network:{RESET}")
    print(f"  - Services with exposed ports: {len(services_with_ports)}")

    # Docker images
    docker_services = [s for s in BREAKPILOT_SERVICES if s.get("docker_image")]
    print(f"\n{GREEN}Docker:{RESET}")
    print(f"  - Services with Docker images: {len(docker_services)}")

    # Most common technologies
    tech_count: Dict[str, int] = defaultdict(int)
    for service in BREAKPILOT_SERVICES:
        for tech in service.get("technology_stack", []):
            tech_count[tech] += 1

    print(f"\n{GREEN}Top Technologies:{RESET}")
    for tech, count in sorted(tech_count.items(), key=lambda x: x[1], reverse=True)[:10]:
        print(f"  - {tech}: {count}")


def validate_data_categories():
    """Check that PII-processing services have data_categories defined."""
    print(f"\n{GREEN}=== Validating Data Categories ==={RESET}")
    warnings = []

    for service in BREAKPILOT_SERVICES:
        if service.get("processes_pii") and not service.get("data_categories"):
            warnings.append(
                f"  {YELLOW}⚠{RESET} Service '{service['name']}' processes PII but has no data_categories defined"
            )

    if warnings:
        print(f"\n{YELLOW}Found {len(warnings)} warnings:{RESET}")
        for warning in warnings:
            print(warning)
        return False
    else:
        print(f"{GREEN}✓ All PII-processing services have data categories{RESET}")
        return True


def main():
    """Run all validations."""
    print(f"{GREEN}{'='*60}")
    print("  Breakpilot Service Module Validation")
    print(f"{'='*60}{RESET}")

    all_passed = True

    all_passed &= validate_required_fields()
    all_passed &= validate_port_conflicts()
    all_passed &= validate_regulation_mappings()
    all_passed &= validate_data_categories()

    print_statistics()

    print(f"\n{GREEN}{'='*60}{RESET}")
    if all_passed:
        print(f"{GREEN}✓ All validations passed!{RESET}")
        return 0
    else:
        print(f"{YELLOW}⚠ Some validations failed or have warnings{RESET}")
        return 1


if __name__ == "__main__":
    sys.exit(main())