#!/usr/bin/env python3

# @source: https://github.com/radude/rentry/blob/master/rentry.py
import asyncio
import http.cookiejar
import urllib.parse
import urllib.request
from datetime import datetime, timedelta
from http.cookies import SimpleCookie
from json import loads as json_loads
from uuid import uuid4

from utils.db import db

BASE_PROTOCOL = 'https://'
BASE_URL = 'rentry.co'

_headers = {'Referer': f'{BASE_PROTOCOL}{BASE_URL}'}


class UrllibClient:
    """Simple HTTP Session Client, keeps cookies."""

    def __init__(self):
        self.cookie_jar = http.cookiejar.CookieJar()
        self.opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(self.cookie_jar))
        urllib.request.install_opener(self.opener)

    def get(self, url, headers=None):
        if headers is None:
            headers = {}
        request = urllib.request.Request(url, headers=headers)  # noqa: S310
        return self._request(request)

    def post(self, url, data=None, headers=None):
        if headers is None:
            headers = {}
        postdata = urllib.parse.urlencode(data).encode()
        request = urllib.request.Request(url, postdata, headers)  # noqa: S310
        return self._request(request)

    def _request(self, request):
        response = self.opener.open(request)
        response.status_code = response.getcode()
        response.data = response.read().decode('utf-8')
        return response


def raw(url: str):
    client = UrllibClient()
    return json_loads(client.get(f'{BASE_PROTOCOL}{BASE_URL}/api/raw/{url}').data)


def new(text: str, edit_code: str = '', url: str = ''):
    client, cookie = UrllibClient(), SimpleCookie()

    cookie.load(vars(client.get(f'{BASE_PROTOCOL}{BASE_URL}'))['headers']['Set-Cookie'])
    csrftoken = cookie['csrftoken'].value

    payload = {
        'csrfmiddlewaretoken': csrftoken,
        'url': url,
        'edit_code': edit_code,
        'text': text,
    }

    return json_loads(client.post(f'{BASE_PROTOCOL}{BASE_URL}' + '/api/new', payload, headers=_headers).data)


def edit(url_short: str, edit_code: str, text: str):
    client, cookie = UrllibClient(), SimpleCookie()

    cookie.load(vars(client.get(f'{BASE_PROTOCOL}{BASE_URL}'))['headers']['Set-Cookie'])
    csrftoken = cookie['csrftoken'].value

    payload = {'csrfmiddlewaretoken': csrftoken, 'edit_code': edit_code, 'text': text}

    return json_loads(client.post(f'{BASE_PROTOCOL}{BASE_URL}/api/edit/{url_short}', payload, headers=_headers).data)


def delete(url_short: str, edit_code: str):
    client, cookie = UrllibClient(), SimpleCookie()
    cookie.load(vars(client.get(f'{BASE_PROTOCOL}{BASE_URL}'))['headers']['Set-Cookie'])
    csrftoken = cookie['csrftoken'].value
    payload = {'csrfmiddlewaretoken': csrftoken, 'edit_code': edit_code}
    return json_loads(
        client.post(
            f'{BASE_PROTOCOL}{BASE_URL}/api/delete/{url_short}',
            payload,
            headers=_headers,
        ).data
    )


async def paste(
    text: str,
    return_edit: bool = False,
    edit_bin: bool = False,
    edit_code: str = None,
    url: str = None,
    permanent: bool = False,
) -> str | tuple[str, str]:
    """Pastes some text to rentry bin.
    args:
        text: Input text to paste
        return_edit: If it should return edit code also
        edit_bin: If this request is to edit an already existing bin
        edit_code: Only required if edit_bin is True. It is the edit code used to edit bin.
        url: Only required if edit_bin is True. It is the url on which the bin is located.
        permanent: If the pasted content should not be deleted automatically

    returns:
        The url of the paste or return a tuple containing url and edit code
    """
    if not str(text):
        return

    if edit_bin:
        if not (url and edit_code):
            raise ValueError('Please provide both, url and edit code')
        response = edit(url_short=url, edit_code=edit_code, text=text)
    else:
        response = new(text=text)

    if response.get('status') != '200':
        raise RuntimeError(
            f'paste task terminated with status: {response.get("status")}\n'
            f'Message: {response.get("content", "No message provided")}'
        )

    url = response['url']
    edit_code = response['edit_code']

    if not permanent:
        short_url = response['url_short']
        time_now = datetime.now()
        ftime = time_now.strftime('%d %I:%M:%S %p %Y')

        print(f'URL: {url} - Edit Code: {edit_code} - Time: {ftime}')

        rallUrls = db.get('core.rentry', 'urls', default={'allUrls': {}})
        entry_id = str(uuid4())
        rallUrls['allUrls'][entry_id] = {
            'url': short_url,
            'edit_code': edit_code,
            'time': ftime,
        }
        db.set('core.rentry', 'urls', rallUrls)

    if return_edit:
        return (url, edit_code)
    return url


async def rentry_cleanup_job():
    """Periodically checks and deletes rentry pastes older than 24 hours"""
    while True:
        try:
            rallUrls = db.get('core.rentry', 'urls', default={'allUrls': {}})
            now = datetime.now()
            deleted_count = 0
            error_count = 0

            for entry_id, entry in list(rallUrls['allUrls'].items()):
                url = entry['url']
                entry_time = datetime.strptime(entry['time'], '%d %I:%M:%S %p %Y')

                if now - entry_time > timedelta(days=1):
                    try:
                        delete(url, entry['edit_code'])
                        del rallUrls['allUrls'][entry_id]
                        deleted_count += 1
                        print(f'[#] Deleted expired rentry paste: {url}')
                    except Exception as e:
                        error_count += 1
                        print(f'[!] Failed to delete rentry paste {url}: {str(e)}')

            if deleted_count or error_count:
                print(f'[*] Cleanup summary: {deleted_count} deleted, {error_count} failed')

            if deleted_count:
                db.set('core.rentry', 'urls', rallUrls)

        except Exception as e:
            print(f'[!] Error in rentry cleanup job: {str(e)}')

        await asyncio.sleep(12 * 60 * 60)