"""
Example: scanning a custom target with module-level access.

This example shows how to use individual modules instead of the full pipeline.
Useful for:

* Re-running the analyzer with different signatures
* Re-training the ML classifier with new hyperparameters
* Generating mutated payloads without scanning

Run
---
::

    python examples/custom_target.py
"""

from intelliscan.modules.analyzer import Analyzer
from intelliscan.modules.classifier import MLClassifier
from intelliscan.modules.payload_gen import PayloadGenerator


def example_signature_analysis():
    """Analyze raw injection results without re-scanning."""
    raw_results = [
        {
            "target_url": "http://test.example/sqli",
            "method": "GET",
            "vuln_type": "sqli",
            "param": "id",
            "payload": "' OR 1=1-- ",
            "status_code": 200,
            "response_len": 4821,
            "response_body": "First name: admin Surname: admin",
        },
    ]
    analyzer = Analyzer(raw_results)
    labeled = analyzer.run()
    for r in labeled:
        print(f"{r.label}: {r.reason}")


def example_payload_mutation():
    """Generate WAF-bypass variants of a payload."""
    gen = PayloadGenerator()
    base = "' OR 1=1-- "
    variants = gen.generate(base, vuln_type="sqli")

    print(f"\nBase payload: {base!r}")
    print(f"Generated {len(variants)} variants:\n")
    for v in variants[:10]:
        print(f"  {v!r}")


def example_train_classifier():
    """Train the Random Forest on a JSON dataset."""
    # Toy dataset: 8 vulnerable, 8 not vulnerable
    dataset = []
    for _ in range(8):
        dataset.append(
            {
                "vuln_type": "sqli",
                "payload": "' OR 1=1-- ",
                "status_code": 200,
                "response_len": 5000,
                "response_body": "First name: a",
                "label": "VULNERABLE",
            }
        )
        dataset.append(
            {
                "vuln_type": "sqli",
                "payload": "x",
                "status_code": 200,
                "response_len": 1000,
                "response_body": "no dump here",
                "label": "NOT_VULNERABLE",
            }
        )

    clf = MLClassifier()
    report = clf.train(dataset)
    print(report.summary())

    # Test prediction on a new instance
    test = {
        "vuln_type": "sqli",
        "payload": "' UNION SELECT user(),db()-- ",
        "status_code": 200,
        "response_len": 5500,
        "response_body": "First name: x",
    }
    label, proba = clf.predict(test)
    print(f"\nPrediction: {label} (confidence: {proba:.2f})")


if __name__ == "__main__":
    print("--- Signature analysis ---")
    example_signature_analysis()

    print("\n--- Payload mutation ---")
    example_payload_mutation()

    print("\n--- ML training ---")
    example_train_classifier()