"""应用级 API 冒烟测试。

使用 FastAPI TestClient 验证健康检查、静态页面、节点注册校验以及
节点生命周期与手动调用等真实链路。
"""

import json
from pathlib import Path

from fastapi.testclient import TestClient

from app.main import app

WORKSPACE = Path(__file__).resolve().parent.parent.parent
# 直接读取 Echo 节点 manifest 作为注册测试的真实数据。
ECHO_MANIFEST = json.loads(
    (WORKSPACE / "wov-node-echo" / "node.manifest.json").read_text(encoding="utf-8")
)


def test_health() -> None:
    """验证静态首页、OpenAPI 文档与健康探针均可访问。"""
    with TestClient(app) as client:
        root = client.get("/", follow_redirects=False)
        assert root.status_code == 200
        assert "WOV 应用中心" in root.text

        docs = client.get("/docs")
        assert docs.status_code == 200

        response = client.get("/health")
        assert response.status_code == 200
        assert response.json()["service"] == "wov-api"


def test_register_validation_errors() -> None:
    """验证非法节点注册请求会被 Pydantic 或协议校验拒绝。"""
    with TestClient(app) as client:
        assert client.post("/api/admin/nodes", json={}).status_code == 422
        invalid = dict(ECHO_MANIFEST, id="")
        assert client.post("/api/admin/nodes", json=invalid).status_code == 422
        invalid = dict(ECHO_MANIFEST, repo_dir="")
        assert client.post("/api/admin/nodes", json=invalid).status_code == 422
        invalid = dict(ECHO_MANIFEST, max_concurrency=0)
        assert client.post("/api/admin/nodes", json=invalid).status_code == 422


def test_node_lifecycle_and_invoke() -> None:
    """验证注册、查询、调用、停止与删除节点的完整生命周期。"""
    with TestClient(app) as client:
        registered = client.post("/api/admin/nodes", json=ECHO_MANIFEST)
        assert registered.status_code == 200
        assert registered.json()["id"] == "echo"

        nodes = client.get("/api/admin/nodes")
        assert nodes.status_code == 200
        assert [node["id"] for node in nodes.json()] == ["echo"]

        node = client.get("/api/admin/nodes/echo")
        assert node.status_code == 200
        assert node.json()["capability"] == "echo"

        assert client.get("/api/admin/nodes/missing").status_code == 404

        invoked = client.post(
            "/api/admin/nodes/echo/invoke",
            json={
                "run_id": "run_api",
                "inputs": {"text": "api test"},
                "params": {},
            },
        )
        assert invoked.status_code == 200
        assert invoked.json()["status"] == "completed"
        assert invoked.json()["outputs"]["text"] == "api test"

        invoked_default = client.post(
            "/api/admin/nodes/echo/invoke",
            json={"inputs": {}},
        )
        assert invoked_default.status_code == 200
        assert invoked_default.json()["status"] == "completed"
        assert invoked_default.json()["outputs"]["text"] == "echo"

        instances = client.get("/api/admin/node-instances")
        assert instances.status_code == 200
        assert len(instances.json()) >= 1
        instance_id = instances.json()[0]["id"]

        node_instances = client.get("/api/admin/nodes/echo/instances")
        assert node_instances.status_code == 200
        assert node_instances.json()[0]["id"] == instance_id

        assert client.get("/api/admin/nodes/missing/instances").status_code == 404

        stopped = client.post(f"/api/admin/node-instances/{instance_id}/stop")
        assert stopped.status_code == 200
        assert stopped.json()["stopped"] == instance_id

        assert client.post("/api/admin/node-instances/missing/stop").status_code == 404

        deleted = client.delete("/api/admin/nodes/echo")
        assert deleted.status_code == 200
        assert deleted.json()["deleted"] == "echo"

        assert client.get("/api/admin/nodes/echo").status_code == 404
        assert client.delete("/api/admin/nodes/echo").status_code == 404