# Project:  MapServer
# Purpose:  xUnit style Python mapscript tests of Map
# Author:   Umberto Nicoletti, unicoletti@prometeo.it
#
# ===========================================================================
# Copyright (c) 2004, Sean Gillies
#
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# to deal in the Software without restriction, including without limitation
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# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
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# ===========================================================================

import unittest
import mapscript
from .testing import TESTMAPFILE


class ReferenceCountingTestCase(unittest.TestCase):

    def initMap(self):
        self.map = mapscript.mapObj(TESTMAPFILE)

    def testMap(self):
        """ReferenceCountingTestCase.testMap: test map constructor with no argument"""
        test_map = mapscript.mapObj()
        assert test_map.__class__.__name__ == "mapObj"
        assert test_map.thisown == 1
        assert test_map.refcount == 1

    def testMapWithDefaultMap(self):
        """ReferenceCountingTestCase.testTestMap: test map constructor with default map file"""
        test_map = mapscript.mapObj(TESTMAPFILE)
        assert test_map.__class__.__name__ == "mapObj"
        assert test_map.thisown == 1
        assert test_map.refcount == 1
        assert test_map.getLayer(0).refcount == 2

    def testMapLayersCounting(self):
        """ReferenceCountingTestCase.testTestMap: test map constructor with default map file"""
        self.initMap()
        layerRef1 = self.map.getLayer(0)
        assert layerRef1.refcount == 2
        layerRef2 = self.map.getLayer(0)
        assert layerRef2.refcount == 3

    def testMapInsertedLayer(self):
        """MapLayersTestCase.testMapInsertedLayer: test insertion of a new layer at default (last) index"""
        self.initMap()
        n = self.map.numlayers
        layer = mapscript.layerObj()
        layer.name = 'new'
        assert layer.refcount == 1
        assert layer.thisown == 1
        index = self.map.insertLayer(layer)
        assert index == n, index
        assert self.map.numlayers == n + 1
        assert layer.refcount == 2
        assert layer.thisown == 1
        assert self.map.getLayer(index).refcount == 3
        assert self.map.getLayer(index).thisown == 1
        assert layer.refcount == 2
        assert layer.thisown == 1

    def testMapInsertedLayerWithIndex(self):
        """MapLayersTestCase.testMapInsertedLayerWithIndex: test insertion of a new layer at index 0"""
        self.initMap()
        n = self.map.numlayers
        layer = mapscript.layerObj()
        layer.name = 'new'
        assert layer.refcount == 1
        assert layer.thisown == 1
        index = self.map.insertLayer(layer, 0)
        assert index == 0, index
        assert self.map.numlayers == n + 1
        assert layer.refcount == 2
        assert layer.thisown == 1
        assert self.map.getLayer(index).refcount == 3
        assert self.map.getLayer(index).thisown == 1
        assert layer.refcount == 2
        assert layer.thisown == 1

    def testMapRemovedLayerAtTail(self):
        """removal of highest index (tail) layer"""
        self.initMap()
        n = self.map.numlayers
        layer = self.map.removeLayer(n-1)
        assert self.map.numlayers == n-1
        assert layer.name == 'INLINE-PIXMAP-PCT'
        assert layer.thisown == 1
        assert layer.refcount == 1, layer.refcount
        self.map.draw()

    def testMapRemovedLayerAtZero(self):
        """removal of lowest index (0) layer"""
        self.initMap()
        n = self.map.numlayers
        layer = self.map.removeLayer(0)
        assert self.map.numlayers == n-1
        assert layer.name == 'RASTER'
        assert layer.thisown == 1
        assert layer.refcount == 1, layer.refcount
        self.map.draw()

    def testBehaveWhenParentIsNull(self):
        """behave when parent (map) is null"""
        self.initMap()
        layer = mapscript.layerObj()
        layer.name = 'new'
        index = self.map.insertLayer(layer, 0)
        assert index == 0, index
        self.map = None
        assert layer.map is not None, layer.map
        exception = None
        try:
            layer.open()
        except Exception:
            # must fail because the new layer is missing information
            exception = True
        assert exception is True

    def testLayerClone(self):
        """Clone a layer"""
        layer = mapscript.layerObj()
        layer.name = 'sample'
        copy = layer.clone()

        assert layer.refcount == 1, layer.refcount
        assert copy.refcount == 1, copy.refcount
        assert layer.name == copy.name
        assert copy.map is None

    def testMapGetLayerByName(self):
        """behave when parent (map) is null"""
        self.initMap()
        layer = self.map.getLayerByName("RASTER")

        assert layer.refcount == 2, layer.refcount
        assert layer.thisown == 1, layer.thisown

    def testBehaveWhenParentIsNotNull(self):
        """behave when parent (map) is not null"""
        self.initMap()
        layer = mapscript.layerObj(self.map)
        layer.name = 'new'
        assert layer.refcount == 2, layer.refcount

    def testDummyClass(self):
        """basic refcounting for classObj"""
        clazz = mapscript.classObj()
        assert clazz.refcount == 1, clazz.refcount

    def testClassWithArgument(self):
        """classObj constructor with not null layer"""
        self.initMap()
        clazz = mapscript.classObj(self.map.getLayer(0))
        assert clazz.refcount == 2, clazz.refcount

    def testClassGetter(self):
        """classObj getter"""
        self.initMap()
        clazz = self.map.getLayer(1).getClass(0)
        assert clazz.refcount == 2, clazz.refcount

    def testClassClone(self):
        """classObj clone"""
        self.initMap()
        clazz = self.map.getLayer(1).getClass(0)
        assert clazz.refcount == 2, clazz.refcount
        clone = clazz.clone()
        assert clone.refcount == 1, clone.refcount

    def testClassInsert(self):
        """classObj insert at end"""
        self.initMap()
        clazz = mapscript.classObj()
        clazz.minscaledenom = 666
        assert clazz.refcount == 1, clazz.refcount
        idx = self.map.getLayer(1).insertClass(clazz)
        assert clazz.refcount == 2, clazz.refcount
        assert self.map.getLayer(1).getClass(idx).refcount == 3, self.map.getLayer(1).getClass(idx).refcount
        assert self.map.getLayer(1).getClass(idx).minscaledenom == 666, self.map.getLayer(1).getClass(idx).minscaledenom

    def testClassInsertAtMiddle(self):
        """classObj insert at pos. 1"""
        self.initMap()
        clazz = mapscript.classObj()
        clazz.minscaledenom = 666
        assert clazz.refcount == 1, clazz.refcount
        idx = self.map.getLayer(1).insertClass(clazz, 1)
        assert idx == 1, idx
        assert clazz.refcount == 2, clazz.refcount
        assert self.map.getLayer(1).getClass(idx).refcount == 3, self.map.getLayer(1).getClass(idx).refcount
        assert self.map.getLayer(1).getClass(idx).thisown, self.map.getLayer(1).getClass(idx).thisown
        assert self.map.getLayer(1).getClass(idx).minscaledenom == 666, self.map.getLayer(1).getClass(idx).minscaledenom

    def testRemoveFirstClass(self):
        """removal of first class"""
        self.initMap()
        clazz = self.map.getLayerByName("POLYGON").removeClass(0)
        assert clazz is not None
        assert clazz.thisown == 1
        assert clazz.refcount == 1, clazz.refcount
        self.map.draw()

    def testMapClone(self):
        """cloning a mapObj"""
        self.initMap()
        clone = self.map.clone()
        assert clone.refcount == 1, clone.refcount

    def testStyleGetter(self):
        """styleObj getter"""
        self.initMap()
        style = self.map.getLayer(1).getClass(0).getStyle(0)
        assert style.refcount == 2, style.refcount
        assert style.thisown == 1, style.thisown

    def testStyleConstructor(self):
        """styleObj Constructor"""
        self.initMap()
        style = mapscript.styleObj(self.map.getLayer(1).getClass(0))
        assert style.refcount == 2, style.refcount
        assert style.thisown == 1, style.thisown
        style = mapscript.styleObj()
        assert style.refcount == 1, style.refcount
        assert style.thisown == 1, style.thisown

    def testRemoveStyleAtBeginning(self):
        """styleObj remove first one"""
        self.initMap()
        style = mapscript.styleObj()
        assert style.refcount == 1, style.refcount
        assert style.thisown == 1, style.thisown
        self.map.getLayer(1).getClass(0).insertStyle(style)
        assert style.refcount == 2, style.refcount
        assert style.thisown == 1, style.thisown
        style = self.map.getLayer(1).getClass(0).removeStyle(0)
        assert style.refcount == 1, style.refcount
        assert style.thisown == 1, style.thisown

    def testInsertStyle(self):
        """styleObj Insert"""
        self.initMap()
        style = mapscript.styleObj()
        assert style.refcount == 1, style.refcount
        assert style.thisown == 1, style.thisown
        self.map.getLayer(1).getClass(0).insertStyle(style)
        assert style.refcount == 2, style.refcount
        assert style.thisown == 1, style.thisown

    def testCloneStyle(self):
        """styleObj Clone"""
        self.initMap()
        style = mapscript.styleObj()
        assert style.refcount == 1, style.refcount
        assert style.thisown == 1, style.thisown
        clone = style.clone()
        assert clone.refcount == 1, clone.refcount
        assert clone.thisown == 1, clone.thisown
        assert style.refcount == 1, style.refcount
        assert style.thisown == 1, style.thisown
        style = self.map.getLayer(1).getClass(0).getStyle(0)
        clone = style.clone()
        assert clone.refcount == 1, clone.refcount
        assert clone.thisown == 1, clone.thisown

    def testBasicSymbolRefcounting(self):
        """symbolObj refcounting """
        self.initMap()
        symb = self.map.symbolset.getSymbol(0)
        assert symb.refcount == 2, symb.refcount
        assert symb.thisown == 1, symb.thisown
        symb = self.map.symbolset.getSymbolByName("home-png")
        assert symb.refcount == 2, symb.refcount
        assert symb.thisown == 1, symb.thisown
        symb2 = self.map.symbolset.getSymbolByName("home-png")
        assert symb2.refcount == 3, symb2.refcount
        assert symb2.thisown == 1, symb2.thisown

    def testSymbolAppendRemove(self):
        """appendSymbolObj refcounting """
        self.initMap()
        symb = mapscript.symbolObj("ANEWSYMBOL")
        assert symb.refcount == 1, symb.refcount
        assert symb.thisown == 1, symb.thisown
        idx = self.map.symbolset.appendSymbol(symb)
        assert symb.refcount == 2, symb.refcount
        assert symb.thisown == 1, symb.thisown
        symb = self.map.symbolset.removeSymbol(idx)
        assert symb.refcount == 1, symb.refcount
        assert symb.thisown == 1, symb.thisown


if __name__ == '__main__':
    unittest.main()