#!/usr/bin/env python
# -*- coding: utf-8 -*-

# ####################################################################
#  Copyright (C) 2005-2017 by the FIFE team
#  http://www.fifengine.net
#  This file is part of FIFE.
#
#  FIFE is free software; you can redistribute it and/or
#  modify it under the terms of the GNU Lesser General Public
#  License as published by the Free Software Foundation; either
#  version 2.1 of the License, or (at your option) any later version.
#
#  This library is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#  Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public
#  License along with this library; if not, write to the
#  Free Software Foundation, Inc.,
#  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
# ####################################################################

from __future__ import print_function
from __future__ import absolute_import
from .swig_test_utils import *

P = fife.ModelCoordinate
D = fife.ExactModelCoordinate

NEAR_TRESHOLD = 0.001


def is_near(x, y):
    return (y - NEAR_TRESHOLD) < x < (y + NEAR_TRESHOLD)


def pt_is_near(p1, p2):
    return ((p2.x - NEAR_TRESHOLD) < p1.x < (p2.x + NEAR_TRESHOLD)) and \
           ((p2.y - NEAR_TRESHOLD) < p1.y < (p2.y + NEAR_TRESHOLD))


class TestLocation(unittest.TestCase):
    def setUp(self):
        self.engine = getEngine(True)
        self.model = self.engine.getModel()
        self.squaregrid1 = self.model.getCellGrid("square")
        self.squaregrid2 = self.model.getCellGrid("square")
        self.layer1 = fife.Layer("layer1", None, self.squaregrid1)
        self.layer2 = fife.Layer("layer2", None, self.squaregrid2)
        self.loc1 = fife.Location(self.layer1)
        self.loc2 = fife.Location(self.layer2)

    def testBasicMapping(self):
        self.loc1.setLayerCoordinates(P(5, 5))
        pt = self.loc1.getLayerCoordinates()
        self.assertEqual(pt, P(5, 5))
        pt = self.loc1.getExactLayerCoordinates()
        self.assertEqual(pt, D(5, 5))
        pt = self.loc1.getMapCoordinates()
        self.assertEqual(pt, D(5, 5))
        pt = self.loc1.getLayerCoordinates(self.layer2)
        self.assertEqual(pt, P(5, 5))
        pt = self.loc1.getExactLayerCoordinates(self.layer2)
        self.assertEqual(pt, D(5, 5))

    def testSquareGridScale(self):
        self.squaregrid2.setXScale(5)
        self.squaregrid2.setYScale(5)
        self.loc1.setLayerCoordinates(P(5, 5))
        pt = self.loc1.getLayerCoordinates(self.layer2)
        self.assertEqual(pt, P(1, 1))
        pt = self.loc1.getExactLayerCoordinates(self.layer1)
        self.assertEqual(pt, D(5, 5))

    def testSquareGridRotation(self):
        self.squaregrid1.setRotation(90)
        self.loc1.setLayerCoordinates(P(3, 3))
        pt = self.loc1.getMapCoordinates()
        self.assertEqual(pt, D(-3, 3))

    def testSquareGridShifts(self):
        self.squaregrid1.setXShift(-3)
        self.squaregrid1.setYShift(-3)
        self.loc1.setLayerCoordinates(P(3, 3))
        pt = self.loc1.getMapCoordinates()
        self.assertEqual(pt, D(0, 0))

    def testSquareCombinations(self):
        # correct order in combinations = translate, rotate, scale
        self.squaregrid1.setXShift(2)
        self.squaregrid1.setYShift(2)
        self.squaregrid1.setRotation(90)
        self.squaregrid1.setXScale(5)
        self.squaregrid1.setYScale(5)
        self.loc1.setLayerCoordinates(P(1, 1))
        pt = self.loc1.getMapCoordinates()
        print(pt)
        self.assert_(is_near(pt.x, -3))
        self.assert_(is_near(pt.y, 7))


class TestHexGrid(unittest.TestCase):
    def setUp(self):
        self.engine = getEngine(True)
        self.model = self.engine.getModel()
        self.map = self.model.createMap("test")
        self.hexgrid1 = self.model.getCellGrid("hexagonal")
        self.squaregrid1 = self.model.getCellGrid("square")
        self.hex_layer1 = self.map.createLayer("hexlayer", self.hexgrid1)
        self.square_layer1 = self.map.createLayer("squarelayer",
                                                  self.squaregrid1)
        self.loc1 = fife.Location(self.hex_layer1)
        self.loc2 = fife.Location(self.square_layer1)
        self.log = fifelog.LogManager(self.engine)

    # self.log.setVisibleModules('hexgrid', 'cellgrid')

    def tearDown(self):
        del self.engine
        del self.log

    def testHexGrid0row(self):
        self.loc1.setMapCoordinates(D(-2, 0))
        self.assert_(self.loc1.getLayerCoordinates() == P(-2, 0))

        self.loc1.setMapCoordinates(D(-1, 0))
        self.assert_(self.loc1.getLayerCoordinates() == P(-1, 0))

        self.loc1.setMapCoordinates(D(0, 0))
        self.assert_(self.loc1.getLayerCoordinates() == P(0, 0))

        self.loc1.setMapCoordinates(D(1, 0))
        self.assert_(self.loc1.getLayerCoordinates() == P(1, 0))

        self.loc1.setMapCoordinates(D(2, 0))
        self.assert_(self.loc1.getLayerCoordinates() == P(2, 0))

    def testHexGrid1row(self):
        self.loc1.setMapCoordinates(D(-1.1, 1))
        self.assert_(self.loc1.getLayerCoordinates() == P(-2, 1))

        self.loc1.setMapCoordinates(D(-0.5, 1))
        self.assert_(self.loc1.getLayerCoordinates() == P(-1, 1))

        self.loc1.setMapCoordinates(D(-0.1, 1))
        self.assert_(self.loc1.getLayerCoordinates() == P(-1, 1))

        self.loc1.setMapCoordinates(D(0.1, 1))
        self.assert_(self.loc1.getLayerCoordinates() == P(0, 1))

    def testHexGridm1row(self):
        self.loc1.setMapCoordinates(D(-1.1, -1))
        self.assert_(self.loc1.getLayerCoordinates() == P(-2, -1))

        self.loc1.setMapCoordinates(D(-0.5, -1))
        self.assert_(self.loc1.getLayerCoordinates() == P(-1, -1))

        self.loc1.setMapCoordinates(D(-0.1, -1))
        self.assert_(self.loc1.getLayerCoordinates() == P(-1, -1))

        self.loc1.setMapCoordinates(D(0.1, -1))
        self.assert_(self.loc1.getLayerCoordinates() == P(0, -1))

    def testEdgeHits(self):
        self.loc1.setMapCoordinates(D(0.5, 0.5))
        self.assert_(self.loc1.getLayerCoordinates() == P(0, 1))

        self.loc1.setMapCoordinates(D(0.1, 0.4))
        # print "______''___" + str(self.loc1.getLayerCoordinates())
        self.assert_(self.loc1.getLayerCoordinates() == P(0, 0))

        self.loc1.setMapCoordinates(D(0.1, -0.4))
        self.assert_(self.loc1.getLayerCoordinates() == P(0, 0))

        self.loc1.setMapCoordinates(D(-0.5, -0.5))
        self.assert_(self.loc1.getLayerCoordinates() == P(-1, -1))


TEST_CLASSES = [TestHexGrid, TestLocation]

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