"""``api/platform/onebot.py`` 中纯函数与事件分派的覆盖。"""

from __future__ import annotations

from unittest.mock import AsyncMock, MagicMock

import pytest
from fastapi import HTTPException

from kilostar.api.platform import onebot as onebot_mod
from kilostar.core.individual.regulatory_node.template import MessageResponse


# ─── _verify_token ──────────────────────────────────────────────────────────


def test_verify_token_skipped_when_env_missing(monkeypatch):
    monkeypatch.delenv("ONEBOT_ACCESS_TOKEN", raising=False)
    monkeypatch.setenv("KILOSTAR_ENV", "dev")
    onebot_mod._verify_token(None)
    onebot_mod._verify_token("anything")


def test_verify_token_accepts_bearer_prefix(monkeypatch):
    monkeypatch.setenv("ONEBOT_ACCESS_TOKEN", "expected")
    onebot_mod._verify_token("Bearer expected")


def test_verify_token_accepts_token_prefix(monkeypatch):
    monkeypatch.setenv("ONEBOT_ACCESS_TOKEN", "expected")
    onebot_mod._verify_token("Token expected")


def test_verify_token_accepts_raw_token(monkeypatch):
    monkeypatch.setenv("ONEBOT_ACCESS_TOKEN", "expected")
    onebot_mod._verify_token("expected")


def test_verify_token_rejects_missing(monkeypatch):
    monkeypatch.setenv("ONEBOT_ACCESS_TOKEN", "expected")
    with pytest.raises(HTTPException) as exc:
        onebot_mod._verify_token(None)
    assert exc.value.status_code == 401


def test_verify_token_rejects_wrong_token(monkeypatch):
    monkeypatch.setenv("ONEBOT_ACCESS_TOKEN", "expected")
    with pytest.raises(HTTPException) as exc:
        onebot_mod._verify_token("Bearer wrong")
    assert exc.value.status_code == 401


# ─── _extract_plain_text ────────────────────────────────────────────────────


def test_extract_plain_text_handles_string():
    assert onebot_mod._extract_plain_text("hello") == "hello"


def test_extract_plain_text_handles_segment_array():
    seg = [
        {"type": "text", "data": {"text": "hello "}},
        {"type": "image", "data": {"file": "1.png"}},
        {"type": "text", "data": {"text": "world"}},
    ]
    assert onebot_mod._extract_plain_text(seg) == "hello world"


def test_extract_plain_text_handles_unknown_type():
    assert onebot_mod._extract_plain_text(None) == ""
    assert onebot_mod._extract_plain_text({"foo": "bar"}) == ""


# ─── _dispatch_event ────────────────────────────────────────────────────────


@pytest.fixture
def regulatory_actor(fake_actors):
    """注入一个 regulatory_node Mock，默认返回固定的 MessageResponse。"""
    inner = MagicMock()
    inner.working.remote = AsyncMock(
        return_value=MessageResponse(
            platform="onebot", platform_id="private:1234", reply_message="pong"
        )
    )
    fake_actors.register("regulatory_node", inner)
    return inner


async def test_dispatch_event_ignores_non_message(regulatory_actor):
    res = await onebot_mod._dispatch_event(
        {"post_type": "meta_event", "meta_event_type": "heartbeat"}
    )
    assert res is None
    regulatory_actor.working.remote.assert_not_called()


async def test_dispatch_event_ignores_empty_text(regulatory_actor):
    res = await onebot_mod._dispatch_event(
        {
            "post_type": "message",
            "message_type": "private",
            "user_id": 1234,
            "message": "   ",
        }
    )
    assert res is None
    regulatory_actor.working.remote.assert_not_called()


async def test_dispatch_event_private_message_returns_quick_reply(regulatory_actor):
    payload = {
        "post_type": "message",
        "message_type": "private",
        "user_id": 1234,
        "sender": {"nickname": "alice"},
        "message": "ping",
    }
    res = await onebot_mod._dispatch_event(payload)
    assert res is not None
    assert res["reply"] == "pong"
    assert "at_sender" not in res
    assert res["_target"]["message_type"] == "private"
    assert res["_target"]["user_id"] == 1234


async def test_dispatch_event_group_message_includes_at_sender(regulatory_actor):
    payload = {
        "post_type": "message",
        "message_type": "group",
        "user_id": 1234,
        "group_id": 5678,
        "sender": {"card": "alice", "nickname": "fallback"},
        "message": [{"type": "text", "data": {"text": "ping"}}],
    }
    res = await onebot_mod._dispatch_event(payload)
    assert res["reply"] == "pong"
    assert res["at_sender"] is False
    assert res["_target"]["group_id"] == 5678


async def test_dispatch_event_swallows_actor_error(regulatory_actor):
    regulatory_actor.working.remote = AsyncMock(side_effect=RuntimeError("ray fail"))
    payload = {
        "post_type": "message",
        "message_type": "private",
        "user_id": 1,
        "message": "hi",
    }
    res = await onebot_mod._dispatch_event(payload)
    assert res is None


async def test_dispatch_event_returns_none_when_reply_empty(fake_actors):
    inner = MagicMock()
    inner.working.remote = AsyncMock(
        return_value=MessageResponse(
            platform="onebot", platform_id="private:1", reply_message=""
        )
    )
    fake_actors.register("regulatory_node", inner)
    payload = {
        "post_type": "message",
        "message_type": "private",
        "user_id": 1,
        "message": "hi",
    }
    res = await onebot_mod._dispatch_event(payload)
    assert res is None