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path: root/kodereviewer/network_manager.py
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import json
import logging
import re
from enum import StrEnum
from typing import Optional

from PySide6.QtCore import QObject, QSettings, Signal, Slot, Property, qDebug
from PySide6.QtNetwork import QHttpHeaders, QNetworkAccessManager, QNetworkReply, QNetworkRequestFactory
from PySide6.QtQml import QmlElement

from kodereviewer.data import PullRequest
from kodereviewer.project import Project

QML_IMPORT_NAME = "org.deprecated.kodereviewer"
QML_IMPORT_MAJOR_VERSION = 1

PULL_REQUEST_LIST_URL = re.compile(r'/pulls$')
COMMENT_LIST_URL = re.compile(r'/issues/(\d+)/comments')
FILE_LIST_URL = re.compile(r'/pulls/(\d+)/files')
CREATE_REVIEW_URL = re.compile(r'/pulls/(\d+)/reviews')

logger = logging.getLogger(__name__)


class ReviewEvent(StrEnum):
    APPROVE = 'APPROVE'
    REQUEST_CHANGES = 'REQUEST_CHANGES'
    COMMENT = 'COMMENT'


@QmlElement
class NetworkManager(QObject):

    _project: Optional[Project]
    _manager: QNetworkAccessManager
    _request_factory: QNetworkRequestFactory

    projectChanged = Signal()

    def __init__(self):
        super().__init__()
        self._project = None
        self._manager = QNetworkAccessManager()

        self._request_factory = QNetworkRequestFactory()
        settings = QSettings()
        github_token: str = str(settings.value("githubToken"))
        headers = QHttpHeaders()
        headers.append(QHttpHeaders.WellKnownHeader.Accept, "application/vnd.github+json")
        headers.append(QHttpHeaders.WellKnownHeader.Authorization,
                       f'Bearer {github_token}')
        headers.append(QHttpHeaders.WellKnownHeader.UserAgent, "kodereviewer")
        print(f'Authorization: Bearer {github_token}')
        self._request_factory.setCommonHeaders(headers)

        self._manager.finished.connect(self.reply_finished)

    def project(self) -> Optional[Project]:
        return self._project

    def set_project(self, project: Optional[Project]):
        if project is None:
            return
        self._project = project
        self.projectChanged.emit()

        base_url = f'https://api.github.com/repos/{self._project.owner}/{self._project.name}'
        self._request_factory.setBaseUrl(base_url)

    project = Property(Project, fget=project, fset=set_project)

    def reply_finished(self, reply: QNetworkReply):
        if self._project is None:
            print('Project not set')
            return

        response_body = reply.readAll()

        if PULL_REQUEST_LIST_URL.search(reply.url().toString()):
            self._project.load_pull_requests(response_body)
        elif (match := COMMENT_LIST_URL.search(reply.url().toString())):
            pull_request_number = int(match.groups()[0])
            pull_request = self._project.find_pull_request(pull_request_number)
            if pull_request is not None:
                pull_request.load_comments(response_body)
        elif (match := FILE_LIST_URL.search(reply.url().toString())):
            pull_request_number = int(match.groups()[0])
            pull_request: Optional[PullRequest] = self._project.find_pull_request(pull_request_number)
            if pull_request is not None:
                pull_request.load_files(response_body)
        elif (match := CREATE_REVIEW_URL.search(reply.url().toString())):
            logger.info(f'Got review reply: {response_body}')
        else:
            logger.info(f"Can't handle {reply.url()}")

    @Slot()
    def getPullRequests(self) -> None:
        self._manager.get(self._request_factory.createRequest("/pulls"))

    @Slot(int)
    def getPullRequestComments(self, number: int) -> None:
        self._manager.get(
            self._request_factory.createRequest(f'/issues/{number}/comments')
        )

    @Slot(int)
    def getFiles(self, pull_request_number) -> None:
        self._manager.get(
            self._request_factory.createRequest(
                f'/pulls/{pull_request_number}/files'
            )
        )

    @Slot(int, str, str, str)
    def createReview(
            self, pull_request_number: str, commit_id: str,
            body: str, event: ReviewEvent
    ) -> None:
        request = self._request_factory.createRequest(
            f'/pulls/{pull_request_number}/reviews'
        )
        data = {
            'commit_id': commit_id,
            'body': body,
            'event': event,
            'comments': []
        }
        self._manager.post(request, json.dumps(data).encode())