import os
import sys
from pathlib import Path

from playwright.sync_api import TimeoutError as PlaywrightTimeoutError
from playwright.sync_api import sync_playwright

XLSX_DIR = Path(os.getenv('CKAL_XLSX_DIR', '/data/ckal-xlsx'))
CKAL_USERNAME = os.getenv('CKAL_USERNAME')
CKAL_PASSWORD = os.getenv('CKAL_PASSWORD')


def upload_file(xlsx_file: Path) -> None:
    print(f'Verarbeite: {xlsx_file.name}', flush=True)
    with sync_playwright() as p:
        browser = p.chromium.launch(
            headless=True,
            chromium_sandbox=False,
            args=['--disable-dev-shm-usage'],
        )
        page = browser.new_page(viewport={'width': 1400, 'height': 800})
        page.on('dialog', lambda dialog: dialog.accept())
        try:
            page.goto(
                'https://v2.ckalender.de/index.php?content=Login',
                wait_until='domcontentloaded',
                timeout=30000,
            )
            page.locator('[name="username"]').fill(CKAL_USERNAME)
            page.locator('[name="password"]').fill(CKAL_PASSWORD)
            page.locator('[name="password"]').press('Enter')
            try:
                page.wait_for_url(
                    lambda url: 'content=Login' not in str(url),
                    timeout=15000,
                )
            except PlaywrightTimeoutError as exc:
                raise RuntimeError('CKalender-Login fehlgeschlagen.') from exc

            page.goto(
                'https://v2.ckalender.de/index.php?content=Admin.EventImport',
                wait_until='domcontentloaded',
                timeout=30000,
            )
            page.locator('[value="Excel"]').click()
            upload = page.locator('input[type="file"]')
            upload.wait_for(state='attached', timeout=15000)
            upload.set_input_files(str(xlsx_file))
            page.locator('[value="Append"]').click()
            page.locator('[class="ui  primary button"]').click()
            page.wait_for_timeout(1500)
        finally:
            browser.close()


def main() -> int:
    if not CKAL_USERNAME or not CKAL_PASSWORD:
        print('FEHLER: CKAL_USERNAME/CKAL_PASSWORD fehlt.', file=sys.stderr)
        return 1

    XLSX_DIR.mkdir(parents=True, exist_ok=True)
    files = sorted(XLSX_DIR.glob('*.xlsx'))
    if not files:
        print('Keine XLSX-Dateien vorhanden.', flush=True)
        return 0

    for xlsx_file in files:
        try:
            upload_file(xlsx_file)
            xlsx_file.unlink()
            print(f'Upload erfolgreich: {xlsx_file.name}', flush=True)
        except Exception as exc:
            print(f'FEHLER bei {xlsx_file.name}: {exc}', file=sys.stderr, flush=True)
            return 1
    return 0


if __name__ == '__main__':
    sys.exit(main())