"""Basic usage examples for nvdb-py."""

import asyncio

from nvd import NVDClient


async def main() -> None:
    """Run basic examples."""
    async with NVDClient() as client:
        print("=" * 80)
        print("Example 1: Get a specific CVE")
        print("=" * 80)

        cve = await client.cve.get_cve("CVE-2021-44228")
        print(f"CVE ID: {cve.id}")
        print(f"Published: {cve.published}")
        print(f"Status: {cve.vulnStatus}")
        print(f"CVSS v3 Score: {cve.cvss_v3_score}")
        print(f"Description: {cve.description[:200]}...")
        print()

        print("=" * 80)
        print("Example 2: Search CVEs by keyword (limited to 5 results)")
        print("=" * 80)

        count = 0
        async for cve in client.cve.search_cves(keyword="sql injection"):
            print(f"{cve.id}: {cve.description[:100]}...")
            count += 1
            if count >= 5:
                break
        print()

        print("=" * 80)
        print("Example 3: Get CVEs with CRITICAL severity (limited to 5)")
        print("=" * 80)

        count = 0
        async for cve in client.cve.search_cves(cvss_v3_severity="CRITICAL"):
            score = cve.cvss_v3_score or "N/A"
            print(f"{cve.id} - Score: {score} - {cve.description[:80]}...")
            count += 1
            if count >= 5:
                break
        print()

        print("=" * 80)
        print("Example 4: Search CPEs by keyword")
        print("=" * 80)

        count = 0
        async for cpe in client.cpe.search_cpes(keyword="apache"):
            print(f"{cpe.cpeName}")
            print(f"  Title: {cpe.title}")
            print(f"  Deprecated: {cpe.deprecated}")
            count += 1
            if count >= 5:
                break
        print()

        print("=" * 80)
        print("Example 5: Get CVE change history")
        print("=" * 80)

        history = await client.history.get_cve_history("CVE-2021-44228")
        print(f"Found {len(history)} change events for CVE-2021-44228")
        for change in history[:3]:
            print(f"  {change.eventName} at {change.created}")
        print()


if __name__ == "__main__":
    asyncio.run(main())