import pytest
import os
from playwright.sync_api import expect
from PIL import Image
import numpy as np
import tempfile

# Constants
GRADIO_PORT = 7862
GRADIO_URL = f"http://localhost:{GRADIO_PORT}"

@pytest.fixture(scope="module")
def test_image():
    # Create a temporary test image
    test_img = Image.fromarray(np.zeros((100, 100, 3), dtype=np.uint8))
    temp_dir = tempfile.mkdtemp()
    test_img_path = os.path.join(temp_dir, "test_image.png")
    test_img.save(test_img_path)
    
    yield test_img_path
    
    # Cleanup
    os.remove(test_img_path)
    os.rmdir(temp_dir)

def test_page_loads(page):
    page.goto(GRADIO_URL)
    page.wait_for_load_state("networkidle")
    
    # Check if title is present with exact text
    expect(page.locator("h2", has_text="Crowdsourcing Handwriting OCR Dataset")).to_be_visible()
    
    # Check if main interface elements are present
    expect(page.get_by_label("Text to Handwrite")).to_be_visible()
    expect(page.locator('input[type="file"]')).to_be_attached()
    expect(page.get_by_role("button", name="Submit")).to_be_visible()
    expect(page.get_by_role("button", name="Skip")).to_be_visible()

def test_skip_functionality(page):
    page.goto(GRADIO_URL)
    page.wait_for_load_state("networkidle")
    
    # Get initial text
    text_box = page.get_by_label("Text to Handwrite")
    initial_text = text_box.input_value()
    
    # Click skip button
    page.get_by_role("button", name="Skip").click()
    page.wait_for_timeout(2000)  # Wait for response
    
    # Get new text and verify it changed
    new_text = text_box.input_value()
    assert initial_text != new_text

def test_upload_image(page, test_image):
    page.goto(GRADIO_URL)
    page.wait_for_load_state("networkidle")
    
    # Get initial text
    text_box = page.get_by_label("Text to Handwrite")
    initial_text = text_box.input_value()
    
    # Upload image - file input is hidden, but we can still set its value
    page.locator('input[type="file"]').set_input_files(test_image)
    page.wait_for_timeout(2000)  # Wait for upload
    
    # Click submit to complete the upload
    page.get_by_role("button", name="Submit").click()
    page.wait_for_timeout(2000)  # Wait for response
    
    # Verify text changed after submission
    new_text = text_box.input_value()
    assert initial_text != new_text