# -*- coding: utf-8 -*-
from collections import defaultdict
import mock
from searx.engines import wolframalpha_api
from searx.testing import SearxTestCase


class TestWolframAlphaAPIEngine(SearxTestCase):

    def test_request(self):
        query = 'test_query'
        api_key = 'XXXXXX-XXXXXXXXXX'
        dicto = defaultdict(dict)
        dicto['api_key'] = api_key
        params = wolframalpha_api.request(query, dicto)

        self.assertIn('url', params)
        self.assertIn(query, params['url'])
        self.assertIn('wolframalpha.com', params['url'])

        self.assertIn('api_key', params)
        self.assertIn(api_key, params['api_key'])

    def test_response(self):
        self.assertRaises(AttributeError, wolframalpha_api.response, None)
        self.assertRaises(AttributeError, wolframalpha_api.response, [])
        self.assertRaises(AttributeError, wolframalpha_api.response, '')
        self.assertRaises(AttributeError, wolframalpha_api.response, '[]')

        xml = '''<?xml version='1.0' encoding='UTF-8'?>
        <queryresult success='false' error='false' />
        '''
        # test failure
        response = mock.Mock(content=xml)
        self.assertEqual(wolframalpha_api.response(response), [])

        xml = """<?xml version='1.0' encoding='UTF-8'?>
        <queryresult success='true'
            error='false'
            numpods='6'
            datatypes=''
            timedout=''
            timedoutpods=''
            timing='0.684'
            parsetiming='0.138'
            parsetimedout='false'
            recalculate=''
            id='MSPa416020a7966dachc463600000f9c66cc21444cfg'
            host='http://www3.wolframalpha.com'
            server='6'
            related='http://www3.wolframalpha.com/api/v2/relatedQueries.jsp?...'
            version='2.6'>
         <pod title='Input'
             scanner='Identity'
             id='Input'
             position='100'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <plaintext>sqrt(-1)</plaintext>
          </subpod>
         </pod>
         <pod title='Result'
             scanner='Simplification'
             id='Result'
             position='200'
             error='false'
             numsubpods='1'
             primary='true'>
          <subpod title=''>
           <plaintext></plaintext>
          </subpod>
          <states count='1'>
           <state name='Step-by-step solution'
               input='Result__Step-by-step solution' />
          </states>
         </pod>
         <pod title='Polar coordinates'
             scanner='Numeric'
             id='PolarCoordinates'
             position='300'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <plaintext>r1 (radius), θ90° (angle)</plaintext>
          </subpod>
         </pod>
         <pod title='Position in the complex plane'
             scanner='Numeric'
             id='PositionInTheComplexPlane'
             position='400'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <plaintext></plaintext>
          </subpod>
         </pod>
         <pod title='All 2nd roots of -1'
             scanner='RootsOfUnity'
             id=''
             position='500'
             error='false'
             numsubpods='2'>
          <subpod title=''>
           <plaintext>  (principal root)</plaintext>
          </subpod>
          <subpod title=''>
           <plaintext>-</plaintext>
          </subpod>
         </pod>
         <pod title='Plot of all roots in the complex plane'
             scanner='RootsOfUnity'
             id='PlotOfAllRootsInTheComplexPlane'
             position='600'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <plaintext></plaintext>
          </subpod>
         </pod>
        </queryresult>
        """
        # test private user area char in response
        response = mock.Mock(content=xml)
        results = wolframalpha_api.response(response)
        self.assertEqual(type(results), list)
        self.assertEqual(len(results), 1)
        self.assertIn('i', results[0]['answer'])

        xml = """<?xml version='1.0' encoding='UTF-8'?>
            <queryresult success='true'
                error='false'
                numpods='2'
                datatypes=''
                timedout=''
                timedoutpods=''
                timing='1.286'
                parsetiming='0.255'
                parsetimedout='false'
                recalculate=''
                id='MSPa195222ad740ede5214h30000480ca61h003d3gd6'
                host='http://www3.wolframalpha.com'
                server='20'
                related='http://www3.wolframalpha.com/api/v2/relatedQueries.jsp?id=...'
                version='2.6'>
             <pod title='Indefinite integral'
                 scanner='Integral'
                 id='IndefiniteIntegral'
                 position='100'
                 error='false'
                 numsubpods='1'
                 primary='true'>
              <subpod title=''>
               <plaintext>∫1/xxlog(x)+constant</plaintext>
              </subpod>
              <states count='1'>
               <state name='Step-by-step solution'
                   input='IndefiniteIntegral__Step-by-step solution' />
              </states>
              <infos count='1'>
               <info text='log(x) is the natural logarithm'>
                <link url='http://reference.wolfram.com/mathematica/ref/Log.html'
                    text='Documentation'
                    title='Mathematica' />
                <link url='http://functions.wolfram.com/ElementaryFunctions/Log'
                    text='Properties'
                    title='Wolfram Functions Site' />
                <link url='http://mathworld.wolfram.com/NaturalLogarithm.html'
                    text='Definition'
                    title='MathWorld' />
               </info>
              </infos>
             </pod>
             <pod title='Plots of the integral'
                 scanner='Integral'
                 id='Plot'
                 position='200'
                 error='false'
                 numsubpods='2'>
              <subpod title=''>
               <plaintext></plaintext>
               <states count='1'>
                <statelist count='2'
                    value='Complex-valued plot'
                    delimiters=''>
                 <state name='Complex-valued plot'
                     input='Plot__1_Complex-valued plot' />
                 <state name='Real-valued plot'
                     input='Plot__1_Real-valued plot' />
                </statelist>
               </states>
              </subpod>
              <subpod title=''>
               <plaintext></plaintext>
               <states count='1'>
                <statelist count='2'
                    value='Complex-valued plot'
                    delimiters=''>
                 <state name='Complex-valued plot'
                     input='Plot__2_Complex-valued plot' />
                 <state name='Real-valued plot'
                     input='Plot__2_Real-valued plot' />
                </statelist>
               </states>
              </subpod>
             </pod>
             <assumptions count='1'>
              <assumption type='Clash'
                  word='integral'
                  template='Assuming &quot;${word}&quot; is ${desc1}. Use as ${desc2} instead'
                  count='2'>
               <value name='IntegralsWord'
                   desc='an integral'
                   input='*C.integral-_*IntegralsWord-' />
               <value name='MathematicalFunctionIdentityPropertyClass'
                   desc='a function property'
                   input='*C.integral-_*MathematicalFunctionIdentityPropertyClass-' />
              </assumption>
             </assumptions>
            </queryresult>
        """
        # test integral
        response = mock.Mock(content=xml)
        results = wolframalpha_api.response(response)
        self.assertEqual(type(results), list)
        self.assertEqual(len(results), 1)
        self.assertIn('log(x)+c', results[0]['answer'])

        xml = """<?xml version='1.0' encoding='UTF-8'?>
        <queryresult success='true'
            error='false'
            numpods='4'
            datatypes='Solve'
            timedout=''
            timedoutpods=''
            timing='0.883'
            parsetiming='0.337'
            parsetimedout='false'
            recalculate=''
            id='MSPa347225h1ea85fgfbgb4000064ff000d25g5df3f'
            host='http://www5a.wolframalpha.com'
            server='52'
            related='http://www5a.wolframalpha.com/api/v2/relatedQueries.jsp?...'
            version='2.6'>
         <pod title='Input interpretation'
             scanner='Identity'
             id='Input'
             position='100'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <img src='http://www5a.wolframalpha.com/Calculate/MSP/MSP349225h1ea85fgfbgb400005dhd93b9eegg8f32?...'
               alt='solve x^2+x = 0'
               title='solve x^2+x = 0'
               width='157'
               height='35' />
           <plaintext>solve x^2+x = 0</plaintext>
          </subpod>
         </pod>
         <pod title='Results'
             scanner='Solve'
             id='Result'
             position='200'
             error='false'
             numsubpods='2'
             primary='true'>
          <subpod title=''>
           <img src='http://www5a.wolframalpha.com/Calculate/MSP/MSP350225h1ea85fgfbgb400005b1ebcefaha3ac97?...'
               alt='x = -1'
               title='x = -1'
               width='47'
               height='18' />
           <plaintext>x = -1</plaintext>
          </subpod>
          <subpod title=''>
           <img src='http://www5a.wolframalpha.com/Calculate/MSP/MSP351225h1ea85fgfbgb4000032fic0ig981hc936?...'
               alt='x = 0'
               title='x = 0'
               width='36'
               height='18' />
           <plaintext>x = 0</plaintext>
          </subpod>
          <states count='1'>
           <state name='Step-by-step solution'
               input='Result__Step-by-step solution' />
          </states>
         </pod>
         <pod title='Root plot'
             scanner='Solve'
             id='RootPlot'
             position='300'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <img src='http://www5a.wolframalpha.com/Calculate/MSP/MSP352225h1ea85fgfbgb40000464054c665hc5dee?...'
               alt=''
               title=''
               width='300'
               height='181' />
           <plaintext></plaintext>
          </subpod>
         </pod>
         <pod title='Number line'
             scanner='Solve'
             id='NumberLine'
             position='400'
             error='false'
             numsubpods='1'>
          <subpod title=''>
           <img src='http://www5a.wolframalpha.com/Calculate/MSP/MSP353225h1ea85fgfbgb400005ab1c8aai366fe46?...'
               alt=''
               title=''
               width='310'
               height='36' />
           <plaintext></plaintext>
          </subpod>
         </pod>
        </queryresult>
        """
        # test ecuation with multiple answers
        response = mock.Mock(content=xml)
        results = wolframalpha_api.response(response)
        self.assertEqual(type(results), list)
        self.assertEqual(len(results), 2)
        self.assertIn('x = -1', results[0]['answer'])
        self.assertIn('x = 0', results[1]['answer'])