#!/usr/bin/env python3

import time
from flask import url_for
from .util import live_server_setup, wait_for_all_checks, delete_all_watches
from changedetectionio import html_tools
import os

def set_original_ignore_response(datastore_path):

    test_return_data = """<html>
       <body>
     Some initial text<br>
     <p>Which is across multiple lines</p>
     <br>
     So let's see what happens.  <br>
     </body>
     </html>

    """

    with open(os.path.join(datastore_path, "endpoint-content.txt"), "w") as f:
        f.write(test_return_data)


def set_modified_original_ignore_response(datastore_path):
    test_return_data = """<html>
       <body>
     Some NEW nice initial text<br>
     <p>Which is across multiple lines</p>
     <br>
     So let's see what happens.  <br>
     <p>new ignore stuff</p>
     <p>out of stock</p>
     <p>blah</p>
     </body>
     </html>

    """

    with open(os.path.join(datastore_path, "endpoint-content.txt"), "w") as f:
        f.write(test_return_data)


# Is the same but includes ZZZZZ, 'ZZZZZ' is the last line in ignore_text
def set_modified_response_minus_block_text(datastore_path):
    test_return_data = """<html>
       <body>
     Some NEW nice initial text<br>
     <p>Which is across multiple lines</p>
     <p>now on sale $2/p>
     <br>
     So let's see what happens.  <br>
     <p>new ignore stuff</p>
     <p>blah</p>
     </body>
     </html>

    """

    with open(os.path.join(datastore_path, "endpoint-content.txt"), "w") as f:
        f.write(test_return_data)


def test_check_block_changedetection_text_NOT_present(client, live_server, measure_memory_usage, datastore_path):

    # Use a mix of case in ZzZ to prove it works case-insensitive.
    ignore_text = "out of stoCk\r\nfoobar"
    set_original_ignore_response(datastore_path=datastore_path)

    # Add our URL to the import page
    test_url = url_for('test_endpoint', _external=True)
    uuid = client.application.config.get('DATASTORE').add_watch(url=test_url)
    client.post(url_for("ui.form_watch_checknow"), follow_redirects=True)

    uuid = next(iter(live_server.app.config['DATASTORE'].data['watching']))
    # Give the thread time to pick it up
    wait_for_all_checks(client)

    # Goto the edit page, add our ignore text
    # Add our URL to the import page
    res = client.post(
        url_for("ui.ui_edit.edit_page", uuid=uuid),
        data={"text_should_not_be_present": ignore_text,
              "url": test_url,
              'fetch_backend': "html_requests",
              "time_between_check_use_default": "y"
              },
        follow_redirects=True
    )
    assert b"Updated watch." in res.data

    # Give the thread time to pick it up
    wait_for_all_checks(client)
    # Check it saved
    res = client.get(
        url_for("ui.ui_edit.edit_page", uuid=uuid),
    )
    assert bytes(ignore_text.encode('utf-8')) in res.data

    # Trigger a check
    client.post(url_for("ui.form_watch_checknow"), follow_redirects=True)

    # Give the thread time to pick it up
    wait_for_all_checks(client)

    # It should report nothing found (no new 'has-unread-changes' class)
    res = client.get(url_for("watchlist.index"))
    assert b'has-unread-changes' not in res.data
    assert b'/test-endpoint' in res.data

    # The page changed, BUT the text is still there, just the rest of it changes, we should not see a change
    set_modified_original_ignore_response(datastore_path=datastore_path)

    # Trigger a check
    client.post(url_for("ui.form_watch_checknow"), follow_redirects=True)
    # Give the thread time to pick it up
    wait_for_all_checks(client)

    # It should report nothing found (no new 'has-unread-changes' class)
    res = client.get(url_for("watchlist.index"))
    assert b'has-unread-changes' not in res.data
    assert b'/test-endpoint' in res.data

    # 2548
    # Going back to the ORIGINAL should NOT trigger a change
    set_original_ignore_response(datastore_path=datastore_path)
    client.post(url_for("ui.form_watch_checknow"), follow_redirects=True)
    wait_for_all_checks(client)
    res = client.get(url_for("watchlist.index"))
    assert b'has-unread-changes' not in res.data

    # Now we set a change where the text is gone AND its different content, it should now trigger
    set_modified_response_minus_block_text(datastore_path=datastore_path)
    client.post(url_for("ui.form_watch_checknow"), follow_redirects=True)
    wait_for_all_checks(client)
    res = client.get(url_for("watchlist.index"))

    assert b'has-unread-changes' in res.data

    # Clearing all history then viewing it should show us what is blocked
    set_modified_original_ignore_response(datastore_path=datastore_path)
    client.post(url_for("ui.clear_watch_history", uuid=uuid))
    wait_for_all_checks(client)
    client.post(url_for("ui.form_watch_checknow"), follow_redirects=True)
    wait_for_all_checks(client)
    res = client.get(
        url_for("ui.ui_preview.preview_page", uuid=uuid)
    )
    assert b'blocked_line_numbers = [10]' in res.data


    delete_all_watches(client)
