import datetime
import json
from unittest import TestCase
from redash.query_runner.prometheus import get_instant_rows, get_range_rows


class TestPrometheus(TestCase):
    def setUp(self):
        self.instant_query_result = [
            {
                "metric": {
                    "name": "example_metric_name",
                    "foo_bar": "foo",
                },
                "value": [1516937400.781, "7400_foo"]
            },
            {
                "metric": {
                    "name": "example_metric_name",
                    "foo_bar": "bar",
                },
                "value": [1516937400.781, "7400_bar"]
            }
        ]

        self.range_query_result = [
            {
                "metric": {
                    "name": "example_metric_name",
                    "foo_bar": "foo",
                },
                "values": [
                    [1516937400.781, "7400_foo"],
                    [1516938000.781, "8000_foo"],
                ]
            },
            {
                "metric": {
                    "name": "example_metric_name",
                    "foo_bar": "bar",
                },
                "values": [
                    [1516937400.781, "7400_bar"],
                    [1516938000.781, "8000_bar"],
                ]
            }
        ]

    def test_get_instant_rows(self):
        instant_rows = [
            {
                "name": "example_metric_name",
                "foo_bar": "foo",
                "timestamp": datetime.datetime.fromtimestamp(1516937400.781),
                "value": "7400_foo"
            },
            {
                "name": "example_metric_name",
                "foo_bar": "bar",
                "timestamp": datetime.datetime.fromtimestamp(1516937400.781),
                "value": "7400_bar"
            },
        ]

        rows = get_instant_rows(self.instant_query_result)
        self.assertEqual(instant_rows, rows)

    def test_get_range_rows(self):

        range_rows = [
            {
                "name": "example_metric_name",
                "foo_bar": "foo",
                "timestamp": datetime.datetime.fromtimestamp(1516937400.781),
                "value": "7400_foo"
            },
            {
                "name": "example_metric_name",
                "foo_bar": "foo",
                "timestamp": datetime.datetime.fromtimestamp(1516938000.781),
                "value": "8000_foo"
            },
            {
                "name": "example_metric_name",
                "foo_bar": "bar",
                "timestamp": datetime.datetime.fromtimestamp(1516937400.781),
                "value": "7400_bar"
            },
            {
                "name": "example_metric_name",
                "foo_bar": "bar",
                "timestamp": datetime.datetime.fromtimestamp(1516938000.781),
                "value": "8000_bar"
            },
        ]

        rows = get_range_rows(self.range_query_result)
        self.assertEqual(range_rows, rows)