from __future__ import absolute_import
# Copyright (c) 2010-2016 openpyxl

import pytest

from openpyxl.xml.functions import fromstring, tostring
from openpyxl.tests.helper import compare_xml
from .. import Series


@pytest.fixture
def AreaChart():
    from ..area_chart import AreaChart
    return AreaChart


class TestAreaChart:

    def test_ctor(self, AreaChart):
        chart = AreaChart()
        xml = tostring(chart.to_tree())
        expected = """
        <areaChart>
          <grouping val="standard"></grouping>
          <axId val="10"></axId>
          <axId val="100"></axId>
        </areaChart>
        """
        diff = compare_xml(xml, expected)
        assert diff is None, diff


    def test_from_xml(self, AreaChart):
        src = """
         <areaChart>
           <grouping val="percentStacked"/>
           <varyColors val="1"/>
           <axId val="10"></axId>
           <axId val="100"></axId>
         </areaChart>
        """
        node = fromstring(src)
        chart = AreaChart.from_tree(node)
        assert chart == AreaChart(grouping="percentStacked", varyColors=True)


    def test_write(self, AreaChart):
        s1 = Series(values="Sheet1!$A$1:$A$12")
        s2 = Series(values="Sheet1!$B$1:$B$12")
        chart = AreaChart(ser=[s1, s2])
        xml = tostring(chart._write())
        expected = """
        <chartSpace xmlns="http://schemas.openxmlformats.org/drawingml/2006/chart">
         <chart>
           <plotArea>
             <areaChart>
               <grouping val="standard"></grouping>
               <ser>
                 <idx val="0"></idx>
                 <order val="0"></order>
                 <spPr>
                 <a:ln xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main">
                   <a:prstDash val="solid" />
                 </a:ln>
                 </spPr>
                 <val>
                   <numRef>
                     <f>Sheet1!$A$1:$A$12</f>
                   </numRef>
                 </val>
               </ser>
               <ser>
                 <idx val="1"></idx>
                 <order val="1"></order>
                 <spPr>
                 <a:ln xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main">
                   <a:prstDash val="solid" />
                 </a:ln>
                 </spPr>
                 <val>
                   <numRef>
                     <f>Sheet1!$B$1:$B$12</f>
                   </numRef>
                 </val>
               </ser>
               <axId val="10"></axId>
               <axId val="100"></axId>
             </areaChart>
             <valAx>
               <axId val="100"></axId>
               <scaling>
                 <orientation val="minMax"></orientation>
               </scaling>
               <axPos val="l" />
               <majorGridlines/>
               <crossAx val="10"></crossAx>
             </valAx>
             <catAx>
               <axId val="10"></axId>
               <scaling>
                 <orientation val="minMax"></orientation>
               </scaling>
               <axPos val="l" />
               <crossAx val="100"></crossAx>
               <lblOffset val="100"></lblOffset>
             </catAx>
           </plotArea>
           <legend>
             <legendPos val="r"></legendPos>
           </legend>
           <dispBlanksAs val="gap"></dispBlanksAs>
         </chart>
        </chartSpace>
        """
        diff = compare_xml(xml, expected)
        assert diff is None, diff


@pytest.fixture
def AreaChart3D():
    from ..area_chart import AreaChart3D
    return AreaChart3D


class TestAreaChart3D:

    def test_ctor(self, AreaChart3D):
        chart = AreaChart3D()
        xml = tostring(chart.to_tree())
        expected = """
        <area3DChart>
          <grouping val="standard"></grouping>
          <axId val="10"></axId>
          <axId val="100"></axId>
          <axId val="1000"></axId>
        </area3DChart>
        """
        diff = compare_xml(xml, expected)
        assert diff is None, diff


    def test_from_xml(self, AreaChart3D):
        src = """
        <area3DChart>
          <grouping val="standard"></grouping>
          <axId val="10"></axId>
          <axId val="100"></axId>
          <gapDepth val="150" />
        </area3DChart>
        """
        node = fromstring(src)
        chart = AreaChart3D.from_tree(node)
        assert chart == AreaChart3D(gapDepth=150)
