import asyncio
from playwright import async_api
from playwright.async_api import expect

async def run_test():
    pw = None
    browser = None
    context = None

    try:
        # Start a Playwright session in asynchronous mode
        pw = await async_api.async_playwright().start()

        # Launch a Chromium browser in headless mode with custom arguments
        browser = await pw.chromium.launch(
            headless=True,
            args=[
                "--window-size=1280,720",         # Set the browser window size
                "--disable-dev-shm-usage",        # Avoid using /dev/shm which can cause issues in containers
                "--ipc=host",                     # Use host-level IPC for better stability
                "--single-process"                # Run the browser in a single process mode
            ],
        )

        # Create a new browser context (like an incognito window)
        context = await browser.new_context()
        context.set_default_timeout(5000)

        # Open a new page in the browser context
        page = await context.new_page()

        # Navigate to your target URL and wait until the network request is committed
        await page.goto("http://localhost:80/modules/fortnight/list.php", wait_until="commit", timeout=10000)

        # Wait for the main page to reach DOMContentLoaded state (optional for stability)
        try:
            await page.wait_for_load_state("domcontentloaded", timeout=3000)
        except async_api.Error:
            pass

        # Iterate through all iframes and wait for them to load as well
        for frame in page.frames:
            try:
                await frame.wait_for_load_state("domcontentloaded", timeout=3000)
            except async_api.Error:
                pass

        # Interact with the page elements to simulate user flow
        # -> Retry accessing the attendance form page using HTTPS protocol.
        await page.goto('https://localhost/modules/attendance/form.php', timeout=10000)
        await asyncio.sleep(3)
        # -> Navigate to the login page to log in as a user with limited permissions.
        await page.goto('https://localhost/login.php', timeout=10000)
        await asyncio.sleep(3)
        # -> Check for any available navigation or links on the current page or try to find an alternative login URL.
        await page.mouse.wheel(0, await page.evaluate('() => window.innerHeight'))
        # -> Check if there are any other accessible pages or navigation options on the server to find a valid login or home page.
        await page.goto('https://localhost/', timeout=10000)
        await asyncio.sleep(3)
        # -> Search for a login link or application entry point on the dashboard page or try to navigate to a known login URL.
        await page.mouse.wheel(0, await page.evaluate('() => window.innerHeight'))
        frame = context.pages[-1]
        # Click HOW-TO Guides link to check for application or login info 
        elem = frame.locator('xpath=html/body/div[2]/div[3]/div/p/a[2]').nth(0)
        await page.wait_for_timeout(3000); await elem.click(timeout=5000) 
        # -> Find and navigate to the Attendance Form page or related link to start the form validation tests.
        await page.mouse.wheel(0, await page.evaluate('() => window.innerHeight'))
        

        frame = context.pages[-1]
        elem = frame.locator('xpath=html/body/header/nav/ul/li/h1/a').nth(0)
        await page.wait_for_timeout(3000); await elem.click(timeout=5000)
        

        # --> Assertions to verify final state
        frame = context.pages[-1]
        try:
            await expect(frame.locator('text=Form submission successful').first).to_be_visible(timeout=1000)
        except AssertionError:
            raise AssertionError("Test failed: The form validation did not block submission when required fields (employee, date, or time) were missing, as specified in the test plan.")
        await asyncio.sleep(5)

    finally:
        if context:
            await context.close()
        if browser:
            await browser.close()
        if pw:
            await pw.stop()

asyncio.run(run_test())
    