"""邮件渲染单测: 标签主题/HTML转义/内部key过滤(D2/D12)。不触网。"""
import asyncio

from app.engine.services import email_service


def _capture_send(monkeypatch):
    captured = {}

    async def fake_send(msg):
        captured["msg"] = msg
        return True

    monkeypatch.setattr(email_service, "_send", fake_send)
    return captured


def _html(msg) -> str:
    return msg.get_payload()[0].get_payload(decode=True).decode("utf-8")


def test_lead_email_subject_tag_and_escaped_body(monkeypatch):
    captured = _capture_send(monkeypatch)
    ok = asyncio.run(email_service.send_lead_email(
        customer_profile={"目标国家": "肯尼亚", "_internal": "x", "备注": "<b>bold</b>"},
        contact_info={"phone": "+254712345678", "wechat": "<i>wx</i>"},
        reasoning="<b>强意向</b>",
        conversation_messages=[
            {"role": "user", "content": "<script>alert(1)</script>"},
            {"role": "assistant", "content": "ok"},
        ],
        intent_level="interested",
    ))
    assert ok is True
    subject = str(captured["msg"]["Subject"])
    assert "[新询盘·意向强]" in subject and "肯尼亚" in subject
    body = _html(captured["msg"])
    assert "<script>" not in body          # D12: 转义生效
    assert "&lt;script&gt;" in body
    assert "_internal" not in body         # 内部 key 不渲染
    assert "<b>bold</b>" not in body
    assert "&lt;b&gt;bold&lt;/b&gt;" in body
    assert "<i>wx</i>" not in body
    assert "&lt;i&gt;wx&lt;/i&gt;" in body
    assert captured["msg"].as_string().isascii()


def test_lead_email_unevaluated_tag(monkeypatch):
    captured = _capture_send(monkeypatch)
    asyncio.run(email_service.send_lead_email(
        customer_profile={}, contact_info={"email": "a@b.com"},
        reasoning="", conversation_messages=[], intent_level="",
    ))
    assert "[新询盘·未评估]" in str(captured["msg"]["Subject"])


def test_returning_and_correction_emails(monkeypatch):
    captured = _capture_send(monkeypatch)
    assert asyncio.run(
        email_service.send_returning_lead_email({"whatsapp": "+254700000000"})
    ) is True
    assert "[线索回访]" in str(captured["msg"]["Subject"])
    assert asyncio.run(
        email_service.send_correction_email({"email": "a@b.com"})
    ) is True
    assert "[询盘·更正1]" in str(captured["msg"]["Subject"])


# ---- Task 6(spec §5 首封补全号矩阵): (confirmed, source, 有无 e164) × 显示值+标注 ----

# 等待/未确认态: 裸号 + SA IP → 高置信建议(attempts=1 = 追问轮轮末已耗一轮)
_CC_IP_PROPOSED = {"e164": "+966501234567", "intl": "+966 50 123 4567",
                   "confirmed": False, "attempts": 1, "source": "ip_proposed",
                   "canon": "0501234567"}
# 裸写 IP 国码前缀,静默规范化(confirmed=true,码是客户自己写的)
_CC_PREFIX_NORM = {"e164": "+966501234567", "intl": "+966 50 123 4567",
                   "confirmed": True, "attempts": 0, "source": "prefix_normalized",
                   "canon": "966501234567"}
# 客户报国名重算后确认(埃及 = +20)
_CC_CUSTOMER_STATED = {"e164": "+20501234567", "intl": "+20 50 123 4567",
                       "confirmed": True, "attempts": 1, "source": "customer_stated",
                       "canon": "0501234567"}
# attempts 耗尽落定(标注保留"未经客户确认",spec §4)
_CC_FALLBACK = {"e164": "+966501234567", "intl": "+966 50 123 4567",
                "confirmed": False, "attempts": 2, "source": "fallback",
                "canon": "0501234567"}
# 无建议国(IP 无效): 无 e164
_CC_NO_IP = {"confirmed": False, "attempts": 1, "source": "no_ip",
             "canon": "0501234567"}
# Task 3 调和防御: fallback-无-e164(迁移分支可产出,有机状态机不产生)
_CC_FALLBACK_NO_E164 = {"confirmed": False, "attempts": 0, "source": "fallback",
                        "canon": "0501234567"}


def test_lead_email_cc_unconfirmed_e164_with_note(monkeypatch):
    """首封渲染(未确认态): 正文 e164 +（区号按 IP 推测，未经客户确认）；
    主题行 e164 无标注(主题拥挤)；裸号原文被补全号替换。"""
    captured = _capture_send(monkeypatch)
    assert asyncio.run(email_service.send_lead_email(
        customer_profile={"目标国家": "沙特阿拉伯"},
        contact_info={"whatsapp": "0501234567"},
        reasoning="", conversation_messages=[],
        intent_level="interested",
        cc_info={"whatsapp": dict(_CC_IP_PROPOSED)},
    )) is True
    subject = str(captured["msg"]["Subject"])
    body = _html(captured["msg"])
    assert "+966501234567（区号按 IP 推测，未经客户确认）" in body
    assert "+966501234567" in subject                    # 主题行号码用 e164
    assert "区号按 IP 推测" not in subject                # 主题不加标注
    assert "（缺国家区号）" not in body
    assert "0501234567" not in body                      # 裸号原文不再出现


def test_lead_email_cc_confirmed_sources_no_note(monkeypatch):
    """confirmed=true(prefix_normalized/customer_stated): e164 无标注——
    码是客户自己写的/客户确认过的,零披露。"""
    for state, raw in ((dict(_CC_PREFIX_NORM), "966501234567"),
                       (dict(_CC_CUSTOMER_STATED), "0501234567")):
        captured = _capture_send(monkeypatch)
        asyncio.run(email_service.send_lead_email(
            customer_profile={}, contact_info={"whatsapp": raw},
            reasoning="", conversation_messages=[],
            cc_info={"whatsapp": state},
        ))
        body = _html(captured["msg"])
        assert state["e164"] in body
        assert "未经客户确认" not in body
        assert "（缺国家区号）" not in body


def test_lead_email_cc_fallback_keeps_note(monkeypatch):
    """fallback 落定(confirmed=false 有 e164): e164 + 未经确认标注。"""
    captured = _capture_send(monkeypatch)
    asyncio.run(email_service.send_lead_email(
        customer_profile={}, contact_info={"whatsapp": "0501234567"},
        reasoning="", conversation_messages=[],
        cc_info={"whatsapp": dict(_CC_FALLBACK)},
    ))
    body = _html(captured["msg"])
    assert "+966501234567（区号按 IP 推测，未经客户确认）" in body


def test_lead_email_cc_no_e164_states_raw_with_missing_note(monkeypatch):
    """无 e164 态: no_ip 与 fallback-无-e164(Task 3 调和防御)→ 裸号原文 +
    （缺国家区号），不崩；主题行同样裸号。"""
    for state in (dict(_CC_NO_IP), dict(_CC_FALLBACK_NO_E164)):
        captured = _capture_send(monkeypatch)
        asyncio.run(email_service.send_lead_email(
            customer_profile={}, contact_info={"whatsapp": "0501234567"},
            reasoning="", conversation_messages=[],
            cc_info={"whatsapp": state},
        ))
        body = _html(captured["msg"])
        assert "0501234567（缺国家区号）" in body
        assert "未经客户确认" not in body
        assert "+966" not in body
        assert "0501234567" in str(captured["msg"]["Subject"])


def test_lead_email_merged_phone_shares_whatsapp_state(monkeypatch):
    """canon 组归并渲染: phone 与 whatsapp 同号(phone 无独立态)共享 whatsapp
    组状态——两行都出补全号,不出现一行 e164 一行裸号的自相矛盾。"""
    captured = _capture_send(monkeypatch)
    asyncio.run(email_service.send_lead_email(
        customer_profile={}, contact_info={"whatsapp": "0501234567",
                                           "phone": "0501234567"},
        reasoning="", conversation_messages=[],
        cc_info={"whatsapp": dict(_CC_IP_PROPOSED)},
    ))
    body = _html(captured["msg"])
    assert body.count("+966501234567（区号按 IP 推测，未经客户确认）") == 2


def test_lead_email_stale_cc_state_ignored(monkeypatch):
    """canon 不匹配的残留态(换号后旧 _cc)不渲染: 裸号原文、无任何标注——
    旧补全永不跟随新号。"""
    captured = _capture_send(monkeypatch)
    asyncio.run(email_service.send_lead_email(
        customer_profile={}, contact_info={"whatsapp": "0512345678"},
        reasoning="", conversation_messages=[],
        cc_info={"whatsapp": dict(_CC_IP_PROPOSED)},   # canon=0501234567 ≠ 新号
    ))
    body = _html(captured["msg"])
    assert "0512345678" in body
    assert "+966501234567" not in body
    assert "（缺国家区号）" not in body


def test_correction_and_returning_render_cc(monkeypatch):
    """更正邮件正文/回访邮件主题行同样 _cc 感知: 更正正文带标注 e164;
    回访主题纯 e164 无标注。"""
    captured = _capture_send(monkeypatch)
    assert asyncio.run(email_service.send_correction_email(
        {"whatsapp": "0501234567"}, count=2,
        cc_info={"whatsapp": dict(_CC_IP_PROPOSED)},
    )) is True
    assert "[询盘·更正2]" in str(captured["msg"]["Subject"])
    assert "+966501234567（区号按 IP 推测，未经客户确认）" in _html(captured["msg"])
    assert asyncio.run(email_service.send_returning_lead_email(
        {"whatsapp": "0501234567"},
        cc_info={"whatsapp": dict(_CC_IP_PROPOSED)},
    )) is True
    subject = str(captured["msg"]["Subject"])
    assert "+966501234567" in subject
    assert "区号按 IP 推测" not in subject