import sys
from datetime import datetime, timedelta, timezone
from typing import List

import pandas as pd
import polars as pl
import pytest
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.keys import Keys

from nicegui import ui
from nicegui.testing import Screen


def test_update_table(screen: Screen):
    grid = ui.aggrid({
        'columnDefs': [{'field': 'name'}, {'field': 'age'}],
        'rowData': [{'name': 'Alice', 'age': 18}],
    })

    screen.open('/')
    screen.should_contain('Name')
    screen.should_contain('Age')
    screen.should_contain('Alice')
    screen.should_contain('18')

    grid.options['rowData'][0]['age'] = 42
    screen.wait(0.5)  # HACK: try to fix flaky test
    grid.update()
    screen.wait(0.5)  # HACK: try to fix flaky test
    screen.should_contain('42')


def test_add_row(screen: Screen):
    grid = ui.aggrid({
        'columnDefs': [{'field': 'name'}, {'field': 'age'}],
        'rowData': [],
    })
    ui.button('Update', on_click=grid.update)

    screen.open('/')
    grid.options['rowData'].append({'name': 'Alice', 'age': 18})
    screen.click('Update')
    screen.wait(0.5)
    screen.should_contain('Alice')
    screen.should_contain('18')
    grid.options['rowData'].append({'name': 'Bob', 'age': 21})
    screen.click('Update')
    screen.wait(0.5)
    screen.should_contain('Alice')
    screen.should_contain('18')
    screen.should_contain('Bob')
    screen.should_contain('21')


def test_click_cell(screen: Screen):
    grid = ui.aggrid({
        'columnDefs': [{'field': 'name'}, {'field': 'age'}],
        'rowData': [{'name': 'Alice', 'age': 18}],
    })
    grid.on('cellClicked', lambda e: ui.label(f'{e.args["data"]["name"]} has been clicked!'))

    screen.open('/')
    screen.click('Alice')
    screen.should_contain('Alice has been clicked!')


def test_html_columns(screen: Screen):
    ui.aggrid({
        'columnDefs': [{'field': 'name'}, {'field': 'age'}],
        'rowData': [{'name': '<span class="text-bold">Alice</span>', 'age': 18}],
    }, html_columns=[0])

    screen.open('/')
    screen.should_contain('Alice')
    screen.should_not_contain('<span')
    assert 'text-bold' in screen.find('Alice').get_attribute('class')


def test_dynamic_method(screen: Screen):
    ui.aggrid({
        'columnDefs': [{'field': 'name'}, {'field': 'age'}],
        'rowData': [{'name': 'Alice', 'age': '18'}, {'name': 'Bob', 'age': '21'}, {'name': 'Carol', 'age': '42'}],
        ':getRowHeight': 'params => params.data.age > 35 ? 50 : 25',
    })

    screen.open('/')
    trs = screen.find_all_by_class('ag-row')
    assert len(trs) == 3
    heights = [int(tr.get_attribute('clientHeight')) for tr in trs]
    assert 23 <= heights[0] <= 25
    assert 23 <= heights[1] <= 25
    assert 48 <= heights[2] <= 50


def test_run_grid_method_with_argument(screen: Screen):
    grid = ui.aggrid({
        'columnDefs': [{'field': 'name', 'filter': True}],
        'rowData': [{'name': 'Alice'}, {'name': 'Bob'}, {'name': 'Carol'}],
    })
    filter_model = {'name': {'filterType': 'text', 'type': 'equals', 'filter': 'Alice'}}
    ui.button('Filter', on_click=lambda: grid.run_grid_method('setFilterModel', filter_model))

    screen.open('/')
    screen.should_contain('Alice')
    screen.should_contain('Bob')
    screen.should_contain('Carol')
    screen.click('Filter')
    screen.wait(0.5)
    screen.should_contain('Alice')
    screen.should_not_contain('Bob')
    screen.should_not_contain('Carol')


def test_get_selected_rows(screen: Screen):
    @ui.page('/')
    def page():
        grid = ui.aggrid({
            'columnDefs': [{'field': 'name'}],
            'rowData': [{'name': 'Alice'}, {'name': 'Bob'}, {'name': 'Carol'}],
            'rowSelection': 'multiple',
        })

        async def get_selected_rows():
            ui.label(str(await grid.get_selected_rows()))
        ui.button('Get selected rows', on_click=get_selected_rows)

        async def get_selected_row():
            ui.label(str(await grid.get_selected_row()))
        ui.button('Get selected row', on_click=get_selected_row)

    screen.open('/')
    screen.click('Alice')
    screen.find('Bob')
    ActionChains(screen.selenium).key_down(Keys.SHIFT).click(screen.find('Bob')).key_up(Keys.SHIFT).perform()
    screen.click('Get selected rows')
    screen.should_contain("[{'name': 'Alice'}, {'name': 'Bob'}]")

    screen.click('Get selected row')
    screen.should_contain("{'name': 'Alice'}")


def test_replace_aggrid(screen: Screen):
    with ui.row().classes('w-full') as container:
        ui.aggrid({'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Alice'}]})

    def replace():
        container.clear()
        with container:
            ui.aggrid({'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Bob'}]})
    ui.button('Replace', on_click=replace)

    screen.open('/')
    screen.should_contain('Alice')
    screen.click('Replace')
    screen.should_contain('Bob')
    screen.should_not_contain('Alice')


@pytest.mark.parametrize('df_type', ['pandas', 'polars'])
def test_create_from_dataframe(screen: Screen, df_type: str):
    if df_type == 'pandas':
        df = pd.DataFrame({'name': ['Alice', 'Bob'], 'age': [18, 21], 42: 'answer'})
        ui.aggrid.from_pandas(df)
    else:
        df = pl.DataFrame({'name': ['Alice', 'Bob'], 'age': [18, 21], '42': 'answer'})
        ui.aggrid.from_polars(df)

    screen.open('/')
    screen.should_contain('Alice')
    screen.should_contain('Bob')
    screen.should_contain('18')
    screen.should_contain('21')
    screen.should_contain('42')
    screen.should_contain('answer')


def test_create_dynamically(screen: Screen):
    ui.button('Create', on_click=lambda: ui.aggrid({'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Alice'}]}))

    screen.open('/')
    screen.click('Create')
    screen.should_contain('Alice')


def test_api_method_after_creation(screen: Screen):
    options = {'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Alice'}]}
    ui.button('Create', on_click=lambda: ui.aggrid(options).run_grid_method('selectAll'))

    screen.open('/')
    screen.click('Create')
    assert screen.find_by_class('ag-row-selected')


@pytest.mark.parametrize('df_type', ['pandas', 'polars'])
@pytest.mark.skipif(sys.version_info[:2] == (3, 8), reason='Skipping test for Python 3.8')
def test_problematic_datatypes(screen: Screen, df_type: str):
    if df_type == 'pandas':
        df = pd.DataFrame({
            'datetime_col': [datetime(2020, 1, 1)],
            'datetime_col_tz': [datetime(2020, 1, 2, tzinfo=timezone.utc)],
            'timedelta_col': [timedelta(days=5)],
            'complex_col': [1 + 2j],
            'period_col': pd.Series([pd.Period('2021-01')]),
        })
        ui.aggrid.from_pandas(df)
    else:
        df = pl.DataFrame({
            'datetime_col': [datetime(2020, 1, 1)],
            'datetime_col_tz': [datetime(2020, 1, 2, tzinfo=timezone.utc)],
        })
        ui.aggrid.from_polars(df)

    screen.open('/')
    screen.should_contain('Datetime_col')
    screen.should_contain('2020-01-01')
    screen.should_contain('Datetime_col_tz')
    screen.should_contain('2020-01-02')
    if df_type == 'pandas':
        screen.should_contain('Timedelta_col')
        screen.should_contain('5 days')
        screen.should_contain('Complex_col')
        screen.should_contain('(1+2j)')
        screen.should_contain('Period_col')
        screen.should_contain('2021-01')


def test_run_row_method(screen: Screen):
    grid = ui.aggrid({
        'columnDefs': [{'field': 'name'}, {'field': 'age'}],
        'rowData': [{'name': 'Alice', 'age': 18}],
        ':getRowId': '(params) => params.data.name',
    })
    ui.button('Update', on_click=lambda: grid.run_row_method('Alice', 'setDataValue', 'age', 42))

    screen.open('/')
    screen.should_contain('Alice')
    screen.should_contain('18')

    screen.click('Update')
    screen.should_contain('Alice')
    screen.should_contain('42')


def test_run_method_with_function(screen: Screen):
    @ui.page('/')
    def page():
        grid = ui.aggrid({'columnDefs': [{'field': 'name'}], 'rowData': [{'name': 'Alice'}, {'name': 'Bob'}]})

        async def print_row(index: int) -> None:
            ui.label(f'Row {index}: {await grid.run_grid_method(f"(g) => g.getDisplayedRowAtIndex({index}).data")}')

        ui.button('Print Row 0', on_click=lambda: print_row(0))

    screen.open('/')
    screen.click('Print Row 0')
    screen.should_contain("Row 0: {'name': 'Alice'}")


def test_get_client_data(screen: Screen):
    data: List = []

    @ui.page('/')
    def page():
        grid = ui.aggrid({
            'columnDefs': [
                {'field': 'name'},
                {'field': 'age', 'sort': 'desc'},
            ],
            'rowData': [
                {'name': 'Alice', 'age': 18},
                {'name': 'Bob', 'age': 21},
                {'name': 'Carol', 'age': 42},
            ],
        })

        async def get_data():
            data[:] = await grid.get_client_data()
        ui.button('Get Data', on_click=get_data)

        async def get_sorted_data():
            data[:] = await grid.get_client_data(method='filtered_sorted')
        ui.button('Get Sorted Data', on_click=get_sorted_data)

    screen.open('/')
    screen.click('Get Data')
    screen.wait(0.5)
    assert data == [{'name': 'Alice', 'age': 18}, {'name': 'Bob', 'age': 21}, {'name': 'Carol', 'age': 42}]

    screen.click('Get Sorted Data')
    screen.wait(0.5)
    assert data == [{'name': 'Carol', 'age': 42}, {'name': 'Bob', 'age': 21}, {'name': 'Alice', 'age': 18}]