import git
import html
import os
import requests

github_event_before = os.getenv('GITHUB_EVENT_BEFORE')
github_sha = os.getenv('GITHUB_SHA')
github_repository = os.getenv('GITHUB_REPOSITORY')
github_ref = os.getenv('GITHUB_REF')
telegram_ci_bot_token = os.getenv('TELEGRAM_CI_BOT_TOKEN')
telegram_ci_channel_id = os.getenv('TELEGRAM_CI_CHANNEL_ID')
telegram_team_group_id = os.getenv('TELEGRAM_TEAM_GROUP_ID')
artifact_directory = os.getenv('ARTIFACT_DIRECTORY')

def send_message_to_ci_channel(message):
    data = {
        'chat_id': telegram_ci_channel_id,
        'parse_mode': 'HTML',
        'text': message,
        'disable_web_page_preview': 'true'
    }
    requests.post(
        url = f'https://api.telegram.org/bot{telegram_ci_bot_token}/sendMessage',
        data = data
    )

def send_document_to_ci_channel(document):
    data = {
        'chat_id': telegram_ci_channel_id,
    }
    files = {
        'document': document
    }
    requests.post(
        url = f'https://api.telegram.org/bot{telegram_ci_bot_token}/sendDocument',
        data = data,
        files = files
    )

def send_silent_message_to_team_group(message):
    data = {
        'chat_id': telegram_team_group_id,
        'parse_mode': 'HTML',
        'text': message,
        'disable_web_page_preview': 'true',
        'disable_notification': 'true'
    }
    requests.post(
        url = f'https://api.telegram.org/bot{telegram_ci_bot_token}/sendMessage',
        data = data
    )

repository = git.Repo('.')
commits_range = f'{github_event_before}...{github_sha}'
commits = list(repository.iter_commits(commits_range))

overview_link = f'https://github.com/{github_repository}/compare/{commits_range}'
overview_link_tag = f'''<a href="{overview_link}">{len(commits)} new commit{'s' if len(commits) > 1 else ''}</a>'''
message = f'''<b>🔨 {overview_link_tag} to <code>lawnchair:{github_ref}</code>:</b>\n'''

for commit in reversed(commits):
    commit_message = commit.message.split('\n')[0]
    commit_link = f'https://github.com/{github_repository}/commit/{commit.hexsha}'
    commit_link_tag = f'<a href="{commit_link}">{repository.git.rev_parse(commit.hexsha, short=7)}</a>'
    encoded_message = html.escape(commit_message)
    message += f'\n• {commit_link_tag}: {encoded_message}'

send_message_to_ci_channel(message=message)
send_silent_message_to_team_group(message=message)

with open(f'{artifact_directory}/{os.listdir(artifact_directory)[0]}', 'rb') as apk:
    send_document_to_ci_channel(document=apk)