# -*- coding: utf-8 -*-
import sys
import uuid

from datetime import datetime
from decimal import Decimal

from elasticsearch.serializer import (
    JSONSerializer,
    Deserializer,
    DEFAULT_SERIALIZERS,
    TextSerializer,
)
from elasticsearch.exceptions import SerializationError, ImproperlyConfigured

from .test_cases import TestCase, SkipTest


class TestJSONSerializer(TestCase):
    def test_datetime_serialization(self):
        self.assertEquals(
            '{"d":"2010-10-01T02:30:00"}',
            JSONSerializer().dumps({"d": datetime(2010, 10, 1, 2, 30)}),
        )

    def test_decimal_serialization(self):
        if sys.version_info[:2] == (2, 6):
            raise SkipTest("Float rounding is broken in 2.6.")
        self.assertEquals('{"d":3.8}', JSONSerializer().dumps({"d": Decimal("3.8")}))

    def test_uuid_serialization(self):
        self.assertEquals(
            '{"d":"00000000-0000-0000-0000-000000000003"}',
            JSONSerializer().dumps(
                {"d": uuid.UUID("00000000-0000-0000-0000-000000000003")}
            ),
        )

    def test_raises_serialization_error_on_dump_error(self):
        self.assertRaises(SerializationError, JSONSerializer().dumps, object())

    def test_raises_serialization_error_on_load_error(self):
        self.assertRaises(SerializationError, JSONSerializer().loads, object())
        self.assertRaises(SerializationError, JSONSerializer().loads, "")
        self.assertRaises(SerializationError, JSONSerializer().loads, "{{")

    def test_strings_are_left_untouched(self):
        self.assertEquals("你好", JSONSerializer().dumps("你好"))


class TestTextSerializer(TestCase):
    def test_strings_are_left_untouched(self):
        self.assertEquals("你好", TextSerializer().dumps("你好"))

    def test_raises_serialization_error_on_dump_error(self):
        self.assertRaises(SerializationError, TextSerializer().dumps, {})


class TestDeserializer(TestCase):
    def setUp(self):
        super(TestDeserializer, self).setUp()
        self.de = Deserializer(DEFAULT_SERIALIZERS)

    def test_deserializes_json_by_default(self):
        self.assertEquals({"some": "data"}, self.de.loads('{"some":"data"}'))

    def test_deserializes_text_with_correct_ct(self):
        self.assertEquals(
            '{"some":"data"}', self.de.loads('{"some":"data"}', "text/plain")
        )
        self.assertEquals(
            '{"some":"data"}',
            self.de.loads('{"some":"data"}', "text/plain; charset=whatever"),
        )

    def test_raises_serialization_error_on_unknown_mimetype(self):
        self.assertRaises(SerializationError, self.de.loads, "{}", "text/html")

    def test_raises_improperly_configured_when_default_mimetype_cannot_be_deserialized(
        self
    ):
        self.assertRaises(ImproperlyConfigured, Deserializer, {})