#!/usr/bin/env python
# -*- encoding: utf-8 -*-
#
# Copyright © 2012 eNovance <licensing@enovance.com>
#
# Author: Julien Danjou <julien@danjou.info>
#
# 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 httplib2
import json
import os
import random
import socket
import subprocess
import tempfile
import time
import unittest


class BinDbsyncTestCase(unittest.TestCase):
    def setUp(self):
        self.tempfile = tempfile.mktemp()
        with open(self.tempfile, 'w') as tmp:
            tmp.write("[DEFAULT]\n")
            tmp.write("database_connection=log://localhost\n")

    def test_dbsync_run(self):
        subp = subprocess.Popen(["../bin/ceilometer-dbsync",
                                 "--config-file=%s" % self.tempfile])
        self.assertEqual(subp.wait(), 0)

    def tearDown(self):
        os.unlink(self.tempfile)


class BinSendCounterTestCase(unittest.TestCase):
    def setUp(self):
        self.tempfile = tempfile.mktemp()
        with open(self.tempfile, 'w') as tmp:
            tmp.write("[DEFAULT]\n")
            tmp.write(
                "rpc_backend=ceilometer.openstack.common.rpc.impl_fake\n")
            tmp.write(
                "pipeline_cfg_file=../etc/ceilometer/pipeline.yaml\n")

    def test_send_counter_run(self):
        subp = subprocess.Popen(["../bin/ceilometer-send-counter",
                                 "--config-file=%s" % self.tempfile,
                                 "--counter-resource=someuuid",
                                 "--counter-name=mycounter"])
        self.assertEqual(subp.wait(), 0)

    def tearDown(self):
        os.unlink(self.tempfile)


class BinApiTestCase(unittest.TestCase):

    def setUp(self):
        self.api_port = random.randint(10000, 11000)
        self.http = httplib2.Http()
        self.tempfile = tempfile.mktemp()
        with open(self.tempfile, 'w') as tmp:
            tmp.write("[DEFAULT]\n")
            tmp.write(
                "metering_api_port=%s\n" % self.api_port)
            tmp.write(
                "rpc_backend=ceilometer.openstack.common.rpc.impl_fake\n")
            tmp.write("database_connection=log://localhost\n")
            tmp.write(
                "auth_strategy=noauth\n")
            tmp.write(
                "debug=true\n")
        self.subp = subprocess.Popen(["../bin/ceilometer-api",
                                      "--config-file=%s" % self.tempfile])

    def tearDown(self):
        os.unlink(self.tempfile)
        self.subp.kill()
        self.subp.wait()

    def get_response(self, path):
        url = 'http://%s:%d/%s' % ('127.0.0.1', self.api_port, path)

        for x in range(10):
            try:
                r, c = self.http.request(url, 'GET')
            except socket.error:
                time.sleep(.3)
                self.assertEqual(self.subp.poll(), None)
            else:
                return r, c

    def test_v1(self):
        response, content = self.get_response('v1/meters')
        self.assertEqual(response.status, 200)
        self.assertEqual(json.loads(content), {'meters': []})

    def test_v2(self):
        response, content = self.get_response('v2/meters')
        self.assertEqual(response.status, 200)
        self.assertEqual(json.loads(content), [])