from collections import OrderedDict
from datetime import datetime
from zoneinfo import ZoneInfo

from aurweb import util


def test_timestamp_to_datetime():
    ts = datetime.utcnow().timestamp()
    dt = datetime.utcfromtimestamp(int(ts))
    assert util.timestamp_to_datetime(ts) == dt


def test_as_timezone():
    ts = datetime.utcnow().timestamp()
    dt = util.timestamp_to_datetime(ts)
    assert util.as_timezone(dt, "UTC") == dt.astimezone(tz=ZoneInfo("UTC"))


def test_dedupe_qs():
    items = OrderedDict()
    items["key1"] = "test"
    items["key2"] = "blah"
    items["key3"] = 1

    # Construct and test our query string.
    query_string = '&'.join([f"{k}={v}" for k, v in items.items()])
    assert query_string == "key1=test&key2=blah&key3=1"

    # Add key1=changed and key2=changed to the query and dedupe it.
    deduped = util.dedupe_qs(query_string, "key1=changed", "key3=changed")
    assert deduped == "key2=blah&key1=changed&key3=changed"


def test_number_format():
    assert util.number_format(0.222, 2) == "0.22"
    assert util.number_format(0.226, 2) == "0.23"


def test_extend_query():
    """ Test extension of a query via extend_query. """
    query = {"a": "b"}
    extended = util.extend_query(query, ("a", "c"), ("b", "d"))
    assert extended.get("a") == "c"
    assert extended.get("b") == "d"


def test_to_qs():
    """ Test conversion from a query dictionary to a query string. """
    query = {"a": "b", "c": [1, 2, 3]}
    qs = util.to_qs(query)
    assert qs == "a=b&c=1&c=2&c=3"