intelligence/content_intel.py

from __future__ import annotations

from typing import List

from shield.heuristics import check_spam_content
from shield.models.evidence import Evidence


_SCAM_MARKERS = (
    "crypto giveaway",
    "wire transfer",
    "gift card",
    "urgent payment",
    "verify your wallet",
)


def collect_content_evidence(content: str | None) -> List[Evidence]:
    if not content:
        return []
    evidence: List[Evidence] = []
    spam_reasons = check_spam_content(content)
    for reason in spam_reasons:
        evidence.append(Evidence(
            source="content_intelligence",
            category="spam",
            risk_score=42,
            weight=0.55,
            confidence=0.76,
            explanation=reason,
        ))
    lowered = content.lower()
    if any(marker in lowered for marker in _SCAM_MARKERS):
        evidence.append(Evidence(
            source="content_intelligence",
            category="scam",
            risk_score=58,
            weight=0.6,
            confidence=0.72,
            explanation="Content contains common scam or payment-abuse language",
        ))
    return evidence