"""Tests for chat endpoints: GET/POST /api/projects/{project_id}/chat (KIN-UI-005)."""

import pytest
from unittest.mock import patch, MagicMock
from fastapi.testclient import TestClient

import web.api as api_module


@pytest.fixture
def client(tmp_path):
    db_path = tmp_path / "test.db"
    api_module.DB_PATH = db_path
    from web.api import app
    c = TestClient(app)
    c.post("/api/projects", json={"id": "p1", "name": "P1", "path": "/p1"})
    return c


def test_get_chat_history_empty_for_new_project(client):
    r = client.get("/api/projects/p1/chat")
    assert r.status_code == 200
    assert r.json() == []


def test_post_chat_task_request_creates_task_stub(client):
    with patch("core.chat_intent.classify_intent", return_value="task_request"), \
         patch("web.api.subprocess.Popen") as mock_popen:
        mock_popen.return_value = MagicMock()
        r = client.post("/api/projects/p1/chat", json={"content": "Добавь кнопку выхода"})

    assert r.status_code == 200
    data = r.json()
    assert data["user_message"]["role"] == "user"
    assert data["assistant_message"]["message_type"] == "task_created"
    assert "task_stub" in data["assistant_message"]
    assert data["assistant_message"]["task_stub"]["status"] == "pending"
    assert data["task"] is not None
    assert mock_popen.called


def test_post_chat_status_query_returns_text_response(client):
    with patch("core.chat_intent.classify_intent", return_value="status_query"):
        r = client.post("/api/projects/p1/chat", json={"content": "что сейчас в работе?"})

    assert r.status_code == 200
    data = r.json()
    assert data["user_message"]["role"] == "user"
    assert data["assistant_message"]["role"] == "assistant"
    assert data["task"] is None
    assert "Нет активных задач" in data["assistant_message"]["content"]


def test_post_chat_empty_content_returns_400(client):
    r = client.post("/api/projects/p1/chat", json={"content": "   "})
    assert r.status_code == 400