"""Contains tests for networking.py and app.py"""
import json
import os
import sys
import unittest
from unittest.mock import patch

import pytest
import starlette.routing
import websockets
from fastapi import FastAPI
from fastapi.testclient import TestClient

import gradio
from gradio import Blocks, Button, Interface, Number, Textbox, close_all, routes

os.environ["GRADIO_ANALYTICS_ENABLED"] = "False"


class TestRoutes(unittest.TestCase):
    def setUp(self) -> None:
        self.io = Interface(lambda x: x + x, "text", "text")
        self.app, _, _ = self.io.launch(prevent_thread_lock=True)
        self.client = TestClient(self.app)

    def test_get_main_route(self):
        response = self.client.get("/")
        self.assertEqual(response.status_code, 200)

    def test_static_files_served_safely(self):
        # Make sure things outside the static folder are not accessible
        response = self.client.get(r"/static/..%2findex.html")
        self.assertEqual(response.status_code, 404)
        response = self.client.get(r"/static/..%2f..%2fapi_docs.html")
        self.assertEqual(response.status_code, 404)

    def test_get_config_route(self):
        response = self.client.get("/config/")
        self.assertEqual(response.status_code, 200)

    def test_predict_route(self):
        response = self.client.post(
            "/api/predict/", json={"data": ["test"], "fn_index": 0}
        )
        self.assertEqual(response.status_code, 200)
        output = dict(response.json())
        self.assertEqual(output["data"], ["testtest"])

    def test_named_predict_route(self):
        with Blocks() as demo:
            i = Textbox()
            o = Textbox()
            i.change(lambda x: x + "1", i, o, api_name="p")
            i.change(lambda x: x + "2", i, o, api_name="q")

        app, _, _ = demo.launch(prevent_thread_lock=True)
        client = TestClient(app)
        response = client.post("/api/p/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test1"]

        response = client.post("/api/q/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test2"]

    def test_same_named_predict_route(self):
        with Blocks() as demo:
            i = Textbox()
            o = Textbox()
            i.change(lambda x: x + "0", i, o, api_name="p")
            i.change(lambda x: x + "1", i, o, api_name="p")

        app, _, _ = demo.launch(prevent_thread_lock=True)
        client = TestClient(app)
        response = client.post("/api/p/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test0"]

        response = client.post("/api/p_1/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test1"]

    def test_multiple_renamed(self):
        with Blocks() as demo:
            i = Textbox()
            o = Textbox()
            i.change(lambda x: x + "0", i, o, api_name="p")
            i.change(lambda x: x + "1", i, o, api_name="p")
            i.change(lambda x: x + "2", i, o, api_name="p_1")

        app, _, _ = demo.launch(prevent_thread_lock=True)
        client = TestClient(app)
        response = client.post("/api/p/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test0"]

        response = client.post("/api/p_1/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test1"]

        response = client.post("/api/p_1_1/", json={"data": ["test"]})
        assert response.status_code == 200
        output = dict(response.json())
        assert output["data"] == ["test2"]

    def test_predict_route_without_fn_index(self):
        response = self.client.post("/api/predict/", json={"data": ["test"]})
        self.assertEqual(response.status_code, 200)
        output = dict(response.json())
        self.assertEqual(output["data"], ["testtest"])

    def test_state(self):
        def predict(input, history):
            if history is None:
                history = ""
            history += input
            return history, history

        io = Interface(predict, ["textbox", "state"], ["textbox", "state"])
        app, _, _ = io.launch(prevent_thread_lock=True)
        client = TestClient(app)
        response = client.post(
            "/api/predict/",
            json={"data": ["test", None], "fn_index": 0, "session_hash": "_"},
        )
        output = dict(response.json())
        self.assertEqual(output["data"], ["test", None])
        response = client.post(
            "/api/predict/",
            json={"data": ["test", None], "fn_index": 0, "session_hash": "_"},
        )
        output = dict(response.json())
        self.assertEqual(output["data"], ["testtest", None])

    def tearDown(self) -> None:
        self.io.close()
        close_all()


class TestGeneratorRoutes:
    def test_generator(self):
        def generator(string):
            for char in string:
                yield char

        io = Interface(generator, "text", "text")
        app, _, _ = io.queue().launch(prevent_thread_lock=True)
        client = TestClient(app)

        response = client.post(
            "/api/predict/",
            json={"data": ["abc"], "fn_index": 0, "session_hash": "11"},
            headers={"Authorization": f"Bearer {app.queue_token}"},
        )
        output = dict(response.json())
        assert output["data"] == ["a"]

        response = client.post(
            "/api/predict/",
            json={"data": ["abc"], "fn_index": 0, "session_hash": "11"},
            headers={"Authorization": f"Bearer {app.queue_token}"},
        )
        output = dict(response.json())
        assert output["data"] == ["b"]

        response = client.post(
            "/api/predict/",
            json={"data": ["abc"], "fn_index": 0, "session_hash": "11"},
            headers={"Authorization": f"Bearer {app.queue_token}"},
        )
        output = dict(response.json())
        assert output["data"] == ["c"]

        response = client.post(
            "/api/predict/",
            json={"data": ["abc"], "fn_index": 0, "session_hash": "11"},
            headers={"Authorization": f"Bearer {app.queue_token}"},
        )
        output = dict(response.json())
        assert output["data"] == [None]

        response = client.post(
            "/api/predict/",
            json={"data": ["abc"], "fn_index": 0, "session_hash": "11"},
            headers={"Authorization": f"Bearer {app.queue_token}"},
        )
        output = dict(response.json())
        assert output["data"] == ["a"]


class TestApp:
    def test_create_app(self):
        app = routes.App.create_app(Interface(lambda x: x, "text", "text"))
        assert isinstance(app, FastAPI)


class TestAuthenticatedRoutes(unittest.TestCase):
    def setUp(self) -> None:
        self.io = Interface(lambda x: x, "text", "text")
        self.app, _, _ = self.io.launch(
            auth=("test", "correct_password"),
            prevent_thread_lock=True,
            enable_queue=False,
        )
        self.client = TestClient(self.app)

    def test_post_login(self):
        response = self.client.post(
            "/login", data=dict(username="test", password="correct_password")
        )
        self.assertEqual(response.status_code, 302)
        response = self.client.post(
            "/login", data=dict(username="test", password="incorrect_password")
        )
        self.assertEqual(response.status_code, 400)

    def tearDown(self) -> None:
        self.io.close()
        close_all()


@pytest.mark.asyncio
@pytest.mark.skipif(
    sys.version_info < (3, 8),
    reason="Mocks don't work with async context managers in 3.7",
)
@patch("gradio.routes.get_server_url_from_ws_url", return_value="foo_url")
async def test_queue_join_routes_sets_url_if_none_set(mock_get_url):
    io = Interface(lambda x: x, "text", "text").queue()
    app, _, _ = io.launch(prevent_thread_lock=True)
    io._queue.server_path = None
    async with websockets.connect(
        f"{io.local_url.replace('http', 'ws')}queue/join"
    ) as ws:
        completed = False
        while not completed:
            msg = json.loads(await ws.recv())
            if msg["msg"] == "send_data":
                await ws.send(json.dumps({"data": ["foo"], "fn_index": 0}))
            if msg["msg"] == "send_hash":
                await ws.send(json.dumps({"fn_index": 0, "session_hash": "shdce"}))
            completed = msg["msg"] == "process_completed"
    assert io._queue.server_path == "foo_url"


@pytest.mark.parametrize(
    "ws_url,answer",
    [
        ("ws://127.0.0.1:7861/queue/join", "http://127.0.0.1:7861/"),
        (
            "ws://127.0.0.1:7861/gradio/gradio/gradio/queue/join",
            "http://127.0.0.1:7861/gradio/gradio/gradio/",
        ),
        (
            "wss://huggingface.co.tech/path/queue/join",
            "https://huggingface.co.tech/path/",
        ),
    ],
)
def test_get_server_url_from_ws_url(ws_url, answer):
    assert routes.get_server_url_from_ws_url(ws_url) == answer


def test_mount_gradio_app_set_dev_mode_false():
    app = FastAPI()

    @app.get("/")
    def read_main():
        return {"message": "Hello!"}

    with gradio.Blocks() as blocks:
        gradio.Textbox("Hello from gradio!")

    app = routes.mount_gradio_app(app, blocks, path="/gradio")
    gradio_fast_api = next(
        route for route in app.routes if isinstance(route, starlette.routing.Mount)
    )
    assert not gradio_fast_api.app.blocks.dev_mode


def test_predict_route_is_blocked_if_queue_enabled():
    io = Interface(lambda x: x, "text", "text", examples=[["freddy"]]).queue()
    app, _, _ = io.launch(prevent_thread_lock=True)
    client = TestClient(app)
    result = client.post(
        "/api/predict", json={"fn_index": 0, "data": [5], "session_hash": "foo"}
    )
    assert result.status_code == 401


def test_predict_route_not_blocked_if_queue_disabled():
    with Blocks() as demo:
        input = Textbox()
        output = Textbox()
        number = Number()
        button = Button()
        button.click(
            lambda x: f"Hello, {x}!", input, output, queue=False, api_name="not_blocked"
        )
        button.click(lambda: 42, None, number, queue=True, api_name="blocked")
    app, _, _ = demo.queue().launch(prevent_thread_lock=True)
    client = TestClient(app)

    result = client.post("/api/blocked", json={"data": [], "session_hash": "foo"})
    assert result.status_code == 401
    result = client.post(
        "/api/not_blocked", json={"data": ["freddy"], "session_hash": "foo"}
    )
    assert result.status_code == 200
    assert result.json()["data"] == ["Hello, freddy!"]


def test_predict_route_not_blocked_if_routes_open():
    with Blocks() as demo:
        input = Textbox()
        output = Textbox()
        button = Button()
        button.click(
            lambda x: f"Hello, {x}!", input, output, queue=True, api_name="not_blocked"
        )
    app, _, _ = demo.queue(api_open=True).launch(prevent_thread_lock=True)
    client = TestClient(app)

    result = client.post(
        "/api/not_blocked", json={"data": ["freddy"], "session_hash": "foo"}
    )
    assert result.status_code == 200
    assert result.json()["data"] == ["Hello, freddy!"]


if __name__ == "__main__":
    unittest.main()
