"""oppo_push 集成层单测:未配降级 / auth+unicast 正常流程 / token 缓存 / OPPO 错误码抛错。

httpx 全 monkeypatch, 不发真实网络。
"""
from __future__ import annotations

import json

import pytest

from app.integrations import oppo_push
from app.integrations.oppo_push import OppoPushError


class _FakeResp:
    def __init__(self, status_code: int, payload: dict) -> None:
        self.status_code = status_code
        self._payload = payload
        self.text = json.dumps(payload)

    def json(self) -> dict:
        return self._payload


def _configure(monkeypatch) -> None:
    """配齐凭证 + 清 token 缓存(避免跨用例污染)。"""
    monkeypatch.setattr(oppo_push.settings, "OPPO_PUSH_ENABLED", True)
    monkeypatch.setattr(oppo_push.settings, "OPPO_PUSH_APP_KEY", "ak")
    monkeypatch.setattr(oppo_push.settings, "OPPO_PUSH_MASTER_SECRET", "ms")
    oppo_push._token_cache = None


def test_not_configured_raises(monkeypatch) -> None:
    monkeypatch.setattr(oppo_push.settings, "OPPO_PUSH_APP_KEY", "")
    monkeypatch.setattr(oppo_push.settings, "OPPO_PUSH_MASTER_SECRET", "")
    oppo_push._token_cache = None
    with pytest.raises(OppoPushError):
        oppo_push.send_notification("regid", "t", "c")


def test_disabled_raises(monkeypatch) -> None:
    _configure(monkeypatch)
    monkeypatch.setattr(oppo_push.settings, "OPPO_PUSH_ENABLED", False)
    with pytest.raises(OppoPushError):
        oppo_push.send_notification("regid", "t", "c")


def test_success_flow(monkeypatch) -> None:
    _configure(monkeypatch)
    calls: list[tuple] = []

    def _fake_post(url, **kw):
        calls.append((url, kw))
        if url == oppo_push.settings.OPPO_PUSH_AUTH_ENDPOINT:
            return _FakeResp(200, {"code": 0, "message": "success", "data": {"auth_token": "TOK"}})
        return _FakeResp(200, {"code": 0, "message": "success", "data": {"message_id": "MID"}})

    monkeypatch.setattr(oppo_push.httpx, "post", _fake_post)
    mid = oppo_push.send_notification("regid123", "标题", "内容")
    assert mid == "MID"
    # 先 auth 再 unicast, unicast header 带 auth_token
    assert calls[0][0] == oppo_push.settings.OPPO_PUSH_AUTH_ENDPOINT
    assert calls[1][0] == oppo_push.settings.OPPO_PUSH_UNICAST_ENDPOINT
    assert calls[1][1]["headers"]["auth_token"] == "TOK"
    # unicast body 的 message 是 JSON 字符串, 含 target_value / notification
    msg = json.loads(calls[1][1]["data"]["message"])
    assert msg["target_value"] == "regid123"
    assert msg["notification"]["title"] == "标题"
    assert msg["notification"]["content"] == "内容"
    # channel_id 必带(默认 shagua_wallet); category 默认空 → 不带
    assert msg["notification"]["channel_id"] == "push_oplus_category_content"
    assert "category" not in msg["notification"]


def test_auth_token_cached(monkeypatch) -> None:
    _configure(monkeypatch)
    auth_hits: list[int] = []

    def _fake_post(url, **kw):
        if url == oppo_push.settings.OPPO_PUSH_AUTH_ENDPOINT:
            auth_hits.append(1)
            return _FakeResp(200, {"code": 0, "data": {"auth_token": "TOK"}})
        return _FakeResp(200, {"code": 0, "data": {"message_id": "MID"}})

    monkeypatch.setattr(oppo_push.httpx, "post", _fake_post)
    oppo_push.send_notification("r", "t", "c")
    oppo_push.send_notification("r", "t", "c")
    assert len(auth_hits) == 1  # 第二次复用缓存 token, 不再换 auth


def test_oppo_error_raises(monkeypatch) -> None:
    _configure(monkeypatch)

    def _fake_post(url, **kw):
        if url == oppo_push.settings.OPPO_PUSH_AUTH_ENDPOINT:
            return _FakeResp(200, {"code": 0, "data": {"auth_token": "TOK"}})
        return _FakeResp(200, {"code": -2, "message": "invalid target"})

    monkeypatch.setattr(oppo_push.httpx, "post", _fake_post)
    with pytest.raises(OppoPushError):
        oppo_push.send_notification("r", "t", "c")