"""Tests for Gitea webhook event parsing and signature verification."""
import hashlib
import hmac


def make_signature(payload: bytes, secret: str) -> str:
    """Gitea HMAC-SHA256 서명을 생성한다."""
    return hmac.new(secret.encode(), payload, hashlib.sha256).hexdigest()


def test_verify_signature():
    """Gitea webhook 서명을 검증한다."""
    from agent.webapp import verify_gitea_signature

    payload = b'{"action": "created"}'
    secret = "test-secret"
    sig = make_signature(payload, secret)
    assert verify_gitea_signature(payload, sig, secret) is True
    assert verify_gitea_signature(payload, "wrong", secret) is False


def test_generate_thread_id():
    """결정론적 스레드 ID를 생성한다."""
    from agent.webapp import generate_thread_id

    tid1 = generate_thread_id("galaxis-po", 42)
    tid2 = generate_thread_id("galaxis-po", 42)
    tid3 = generate_thread_id("galaxis-po", 43)
    assert tid1 == tid2
    assert tid1 != tid3
    assert len(tid1) == 36
    assert tid1.count("-") == 4


def test_parse_issue_comment_with_mention():
    """이슈 코멘트에서 @agent 멘션을 감지한다."""
    from agent.webapp import parse_gitea_event

    payload = {
        "action": "created",
        "comment": {"body": "@agent factor_calculator에 듀얼 모멘텀 추가해줘"},
        "issue": {"number": 42, "title": "Feature request", "body": "description"},
        "repository": {"full_name": "quant/galaxis-po", "name": "galaxis-po"},
    }
    result = parse_gitea_event("issue_comment", payload)
    assert result is not None
    assert result["should_process"] is True
    assert result["issue_number"] == 42
    assert result["repo_name"] == "galaxis-po"
    assert "@agent" not in result["message"]


def test_parse_issue_comment_without_mention():
    """@agent 멘션이 없는 코멘트는 무시한다."""
    from agent.webapp import parse_gitea_event

    payload = {
        "action": "created",
        "comment": {"body": "일반 코멘트입니다"},
        "issue": {"number": 42, "title": "Bug", "body": "desc"},
        "repository": {"full_name": "quant/galaxis-po", "name": "galaxis-po"},
    }
    result = parse_gitea_event("issue_comment", payload)
    assert result["should_process"] is False


def test_parse_issue_label_agent_fix():
    """agent-fix 라벨 부착 시 작업을 트리거한다."""
    from agent.webapp import parse_gitea_event

    payload = {
        "action": "label_updated",
        "issue": {"number": 10, "title": "Fix login", "body": "Login fails"},
        "label": {"name": "agent-fix"},
        "repository": {"full_name": "quant/galaxis-po", "name": "galaxis-po"},
    }
    result = parse_gitea_event("issues", payload)
    assert result is not None
    assert result["should_process"] is True


def test_parse_pr_review_requested():
    """PR 리뷰 요청을 감지한다."""
    from agent.webapp import parse_gitea_event

    payload = {
        "action": "review_requested",
        "pull_request": {"number": 5, "title": "feat: add feature", "body": "desc"},
        "repository": {"full_name": "quant/galaxis-po", "name": "galaxis-po"},
    }
    result = parse_gitea_event("pull_request", payload)
    assert result is not None
    assert result["should_process"] is True
    assert result["issue_number"] == 5