# -*- coding: utf-8 -*-
import hashlib
import json
import os
import sys
import time
from pathlib import Path
from uuid import UUID

import pytest
import yaml

from arkindex.mock import MockApiClient
from arkindex_worker.cache import CachedElement, CachedTranscription
from arkindex_worker.git import GitHelper, GitlabHelper
from arkindex_worker.worker import ElementsWorker

FIXTURES_DIR = Path(__file__).resolve().parent / "data"

__yaml_cache = {}


@pytest.fixture(autouse=True)
def disable_sleep(monkeypatch):
    """
    Do not sleep at all in between API executions
    when errors occur in unit tests.
    This speeds up the test execution a lot
    """
    monkeypatch.setattr(time, "sleep", lambda x: None)


@pytest.fixture
def cache_yaml(monkeypatch):
    """
    Cache all calls to yaml.safe_load in order to speedup
    every test cases that load the OpenAPI schema
    """
    # Keep a reference towards the original function
    _original_yaml_load = yaml.safe_load

    def _cached_yaml_load(yaml_payload):
        # Create a unique cache key for direct YAML strings
        # and file descriptors
        if isinstance(yaml_payload, str):
            yaml_payload = yaml_payload.encode("utf-8")
        if isinstance(yaml_payload, bytes):
            key = hashlib.md5(yaml_payload).hexdigest()
        else:
            key = yaml_payload.name

        # Cache result
        if key not in __yaml_cache:
            __yaml_cache[key] = _original_yaml_load(yaml_payload)

        return __yaml_cache[key]

    monkeypatch.setattr(yaml, "safe_load", _cached_yaml_load)


@pytest.fixture(autouse=True)
def setup_api(responses, monkeypatch, cache_yaml):

    # Always use the environment variable first
    schema_url = os.environ.get("ARKINDEX_API_SCHEMA_URL")
    if schema_url is None:
        # Try to load a local schema as the current developer of base-worker
        # may also work on the backend nearby
        paths = [
            "~/dev/ark/backend/schema.yml",
            "~/dev/ark/backend/output/schema.yml",
        ]
        for path in paths:
            path = Path(path).expanduser().absolute()
            if path.exists():
                monkeypatch.setenv("ARKINDEX_API_SCHEMA_URL", str(path))
                schema_url = str(path)
                break

    # Fallback to prod environment
    if schema_url is None:
        schema_url = "https://arkindex.teklia.com/api/v1/openapi/?format=openapi-json"
        monkeypatch.setenv("ARKINDEX_API_SCHEMA_URL", schema_url)

    # Allow accessing remote API schemas
    responses.add_passthru(schema_url)

    # Force api requests on a dummy server with dummy credentials
    monkeypatch.setenv("ARKINDEX_API_URL", "http://testserver/api/v1")
    monkeypatch.setenv("ARKINDEX_API_TOKEN", "unittest1234")


@pytest.fixture(autouse=True)
def temp_working_directory(monkeypatch, tmp_path):
    def _getcwd():
        return str(tmp_path)

    monkeypatch.setattr(os, "getcwd", _getcwd)


@pytest.fixture(autouse=True)
def give_worker_version_id_env_variable(monkeypatch):
    monkeypatch.setenv("WORKER_VERSION_ID", "12341234-1234-1234-1234-123412341234")


@pytest.fixture
def mock_worker_version_api(responses, mock_user_api):
    """Provide a mock API response to get worker configuration"""
    payload = {
        "id": "12341234-1234-1234-1234-123412341234",
        "configuration": {
            "docker": {"image": "python:3"},
            "configuration": {"someKey": "someValue"},
            "secrets": [],
        },
        "revision": {
            "hash": "deadbeef1234",
            "name": "some git revision",
        },
        "docker_image": "python:3",
        "docker_image_name": "python:3",
        "state": "created",
        "worker": {
            "id": "deadbeef-1234-5678-1234-worker",
            "name": "Fake worker",
            "slug": "fake_worker",
            "type": "classifier",
        },
    }
    responses.add(
        responses.GET,
        "http://testserver/api/v1/workers/versions/12341234-1234-1234-1234-123412341234/",
        status=200,
        body=json.dumps(payload),
        content_type="application/json",
    )


@pytest.fixture
def mock_user_api(responses):
    """
    Provide a mock API response to retrieve user details
    Workers Activity is disabled in this mock
    """
    payload = {
        "id": 1,
        "email": "bot@teklia.com",
        "display_name": "Bender",
        "features": {
            "workers_activity": False,
            "signup": False,
        },
    }
    responses.add(
        responses.GET,
        "http://testserver/api/v1/user/",
        status=200,
        body=json.dumps(payload),
        content_type="application/json",
    )


@pytest.fixture
def mock_elements_worker(monkeypatch, mock_worker_version_api):
    """Build and configure an ElementsWorker with fixed CLI parameters to avoid issues with pytest"""
    monkeypatch.setattr(sys, "argv", ["worker"])

    worker = ElementsWorker()
    worker.configure()
    return worker


@pytest.fixture
def mock_elements_worker_with_cache(monkeypatch, mock_worker_version_api):
    """Build and configure an ElementsWorker using SQLite cache with fixed CLI parameters to avoid issues with pytest"""
    monkeypatch.setattr(sys, "argv", ["worker"])

    worker = ElementsWorker(use_cache=True)
    worker.configure()
    return worker


@pytest.fixture
def fake_page_element():
    with open(FIXTURES_DIR / "page_element.json", "r") as f:
        return json.load(f)


@pytest.fixture
def fake_ufcn_worker_version():
    with open(FIXTURES_DIR / "ufcn_line_historical_worker_version.json", "r") as f:
        return json.load(f)


@pytest.fixture
def fake_transcriptions_small():
    with open(FIXTURES_DIR / "line_transcriptions_small.json", "r") as f:
        return json.load(f)


@pytest.fixture
def fake_dummy_worker():
    api_client = MockApiClient()
    worker = ElementsWorker()
    worker.api_client = api_client
    return worker


@pytest.fixture
def fake_git_helper(mocker):
    gitlab_helper = mocker.MagicMock()
    return GitHelper(
        "repo_url",
        "/tmp/git_test/foo/",
        "/tmp/test/path/",
        "tmp_workflow_id",
        gitlab_helper,
    )


@pytest.fixture
def fake_gitlab_helper_factory():
    # have to set up the responses, before creating the client
    def run():
        return GitlabHelper(
            "balsac_exporter/balsac-exported-xmls-testing",
            "https://gitlab.com",
            "<GITLAB_TOKEN>",
            "gitlab_branch",
        )

    return run


@pytest.fixture
def mock_cached_elements():
    """Insert few elements in local cache"""
    CachedElement.create(
        id=UUID("11111111-1111-1111-1111-111111111111"),
        parent_id="12341234-1234-1234-1234-123412341234",
        type="something",
        polygon="[[1, 1], [2, 2], [2, 1], [1, 2]]",
        worker_version_id=UUID("56785678-5678-5678-5678-567856785678"),
    )
    CachedElement.create(
        id=UUID("22222222-2222-2222-2222-222222222222"),
        parent_id=UUID("12341234-1234-1234-1234-123412341234"),
        type="page",
        polygon="[[1, 1], [2, 2], [2, 1], [1, 2]]",
        worker_version_id=UUID("56785678-5678-5678-5678-567856785678"),
    )
    assert CachedElement.select().count() == 2


@pytest.fixture
def mock_cached_transcriptions():
    """Insert few transcriptions in local cache, on a shared element"""
    CachedElement.create(
        id=UUID("12341234-1234-1234-1234-123412341234"),
        type="page",
        polygon="[[1, 1], [2, 2], [2, 1], [1, 2]]",
        worker_version_id=UUID("56785678-5678-5678-5678-567856785678"),
    )
    CachedTranscription.create(
        id=UUID("11111111-1111-1111-1111-111111111111"),
        element_id=UUID("12341234-1234-1234-1234-123412341234"),
        text="Hello!",
        confidence=0.42,
        worker_version_id=UUID("56785678-5678-5678-5678-567856785678"),
    )
    CachedTranscription.create(
        id=UUID("22222222-2222-2222-2222-222222222222"),
        element_id=UUID("12341234-1234-1234-1234-123412341234"),
        text="How are you?",
        confidence=0.42,
        worker_version_id=UUID("90129012-9012-9012-9012-901290129012"),
    )