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# Copyright (c) Microsoft Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import pytest
import pytest_asyncio
from test_helpers import execute_command, goto_url

TIMEZONES = ["Asia/Yekaterinburg", "Europe/Berlin", "America/New_York", "Asia/Tokyo"]
TIMEZONE_OFFSET = "+10:00"


@pytest_asyncio.fixture
async def default_timezone(websocket, context_id):
    """
    Returns default timezone.
    """
    return await get_timezone(websocket, context_id)


@pytest.fixture
def some_timezone(default_timezone):
    """
    Returns some timezone which is not equal to `default_timezone` nor to
    `another_timezone`.
    """
    for timezone in TIMEZONES:
        if timezone != default_timezone:
            return timezone

    raise Exception(
        f"Unexpectedly could not find timezone different from the default {default_timezone}"
    )


@pytest.fixture
def another_timezone(default_timezone, some_timezone):
    """
    Returns some another timezone which is not equal to `default_timezone` nor
    to `some_timezone`.
    """
    for timezone in TIMEZONES:
        if timezone != default_timezone and timezone != some_timezone:
            return timezone

    raise Exception(
        f"Unexpectedly could not find timezone different from the default {default_timezone} and some {some_timezone}"
    )


async def get_timezone(websocket, context_id):
    """
    Returns browsing context's current timezone.
    """
    resp = await execute_command(
        websocket,
        {
            "method": "script.evaluate",
            "params": {
                "expression": "Intl.DateTimeFormat().resolvedOptions().timeZone",
                "target": {"context": context_id},
                "awaitPromise": True,
            },
        },
    )

    return resp["result"]["value"] if "result" in resp else resp


@pytest.mark.asyncio
async def test_timezone_set_and_clear(
    websocket, context_id, default_timezone, some_timezone
):
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": some_timezone},
        },
    )

    assert (await get_timezone(websocket, context_id)) == some_timezone

    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": None},
        },
    )
    assert (await get_timezone(websocket, context_id)) == default_timezone


@pytest.mark.asyncio
async def test_timezone_per_user_context(
    websocket, user_context_id, create_context, some_timezone, another_timezone
):
    # Set different timezone overrides for different user contexts.
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"userContexts": ["default"], "timezone": some_timezone},
        },
    )
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"userContexts": [user_context_id], "timezone": another_timezone},
        },
    )

    # Assert the overrides applied for the right contexts.
    browsing_context_id_1 = await create_context()
    emulated_timezone_1 = await get_timezone(websocket, browsing_context_id_1)
    assert emulated_timezone_1 == some_timezone

    browsing_context_id_2 = await create_context(user_context_id)
    emulated_timezone_2 = await get_timezone(websocket, browsing_context_id_2)
    assert emulated_timezone_2 == another_timezone


@pytest.mark.asyncio
async def test_timezone_per_browsing_context(
    websocket,
    context_id,
    another_context_id,
    create_context,
    some_timezone,
    another_timezone,
):
    # Set different timezone overrides for different user contexts.
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": some_timezone},
        },
    )
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [another_context_id], "timezone": another_timezone},
        },
    )

    assert await get_timezone(websocket, context_id) == some_timezone
    assert await get_timezone(websocket, another_context_id) == another_timezone


@pytest.mark.asyncio
async def test_timezone_iframe(
    websocket,
    context_id,
    iframe_id,
    html,
    default_timezone,
    some_timezone,
    another_timezone,
):
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": some_timezone},
        },
    )

    assert await get_timezone(websocket, iframe_id) == some_timezone

    # Move iframe out of process
    await goto_url(websocket, iframe_id, html("<h1>FRAME</h1>", same_origin=False))
    # Assert timezone emulation persisted.
    assert await get_timezone(websocket, iframe_id) == some_timezone

    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": another_timezone},
        },
    )
    assert await get_timezone(websocket, iframe_id) == another_timezone

    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": None},
        },
    )
    assert await get_timezone(websocket, iframe_id) == default_timezone


@pytest.mark.asyncio
async def test_timezone_invalid(websocket, context_id):
    INVALID_TIMEZONE = "abcd"
    with pytest.raises(
        Exception,
        match=str(
            {
                "error": "invalid argument",
                "message": f'Invalid timezone "{INVALID_TIMEZONE}"',
            }
        ),
    ):
        await execute_command(
            websocket,
            {
                "method": "emulation.setTimezoneOverride",
                "params": {"contexts": [context_id], "timezone": INVALID_TIMEZONE},
            },
        )


@pytest.mark.asyncio
async def test_timezone_offset(websocket, context_id, default_timezone):
    await execute_command(
        websocket,
        {
            "method": "emulation.setTimezoneOverride",
            "params": {"contexts": [context_id], "timezone": TIMEZONE_OFFSET},
        },
    )

    assert (await get_timezone(websocket, context_id)) == TIMEZONE_OFFSET