#!/usr/bin/env python
# -*- coding: utf-8 -*-
###############################################################################
# $Id: rat.py 93b634eed5ded27c5c56df73f932f769c6b2a955 2018-04-14 08:07:52 +1000 Ben Elliston $
#
# Project:  GDAL/OGR Test Suite
# Purpose:  Test RasterAttributeTables services from Python.
# Author:   Frank Warmerdam <warmerdam@pobox.com>
#
###############################################################################
# Copyright (c) 2009, Frank Warmerdam <warmerdam@pobox.com>
# Copyright (c) 2009-2013, Even Rouault <even dot rouault at mines-paris dot org>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# 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:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################

import sys

sys.path.append('../pymod')

import gdaltest
from osgeo import gdal

###############################################################################
# Create a raster attribute table.


def rat_1():

    gdaltest.saved_rat = None

    try:
        rat = gdal.RasterAttributeTable()
    except:
        return 'skip'

    rat.CreateColumn('Value', gdal.GFT_Integer, gdal.GFU_MinMax)
    rat.CreateColumn('Count', gdal.GFT_Integer, gdal.GFU_PixelCount)

    rat.SetRowCount(3)
    rat.SetValueAsInt(0, 0, 10)
    rat.SetValueAsInt(0, 1, 100)
    rat.SetValueAsInt(1, 0, 11)
    rat.SetValueAsInt(1, 1, 200)
    rat.SetValueAsInt(2, 0, 12)
    rat.SetValueAsInt(2, 1, 90)

    rat2 = rat.Clone()

    if rat2.GetColumnCount() != 2:
        gdaltest.post_reason('wrong column count')
        return 'fail'

    if rat2.GetRowCount() != 3:
        gdaltest.post_reason('wrong row count')
        return 'fail'

    if rat2.GetNameOfCol(1) != 'Count':
        gdaltest.post_reason('wrong column name')
        return 'fail'

    if rat2.GetUsageOfCol(1) != gdal.GFU_PixelCount:
        gdaltest.post_reason('wrong column usage')
        return 'fail'

    if rat2.GetTypeOfCol(1) != gdal.GFT_Integer:
        gdaltest.post_reason('wrong column type')
        return 'fail'

    if rat2.GetRowOfValue(11.0) != 1:
        gdaltest.post_reason('wrong row for value')
        return 'fail'

    if rat2.GetValueAsInt(1, 1) != 200:
        gdaltest.post_reason('wrong field value.')
        return 'fail'

    gdaltest.saved_rat = rat

    return 'success'

###############################################################################
# Save a RAT in a file, written to .aux.xml, read it back and check it.


def rat_2():

    if gdaltest.saved_rat is None:
        return 'skip'

    ds = gdal.GetDriverByName('PNM').Create('tmp/rat_2.pnm', 100, 90, 1,
                                            gdal.GDT_Byte)
    ds.GetRasterBand(1).SetDefaultRAT(gdaltest.saved_rat)

    ds = None

    ds = gdal.Open('tmp/rat_2.pnm', gdal.GA_Update)
    rat2 = ds.GetRasterBand(1).GetDefaultRAT()

    if rat2.GetColumnCount() != 2:
        gdaltest.post_reason('wrong column count')
        return 'fail'

    if rat2.GetRowCount() != 3:
        gdaltest.post_reason('wrong row count')
        return 'fail'

    if rat2.GetNameOfCol(1) != 'Count':
        gdaltest.post_reason('wrong column name')
        return 'fail'

    if rat2.GetUsageOfCol(1) != gdal.GFU_PixelCount:
        gdaltest.post_reason('wrong column usage')
        return 'fail'

    if rat2.GetTypeOfCol(1) != gdal.GFT_Integer:
        gdaltest.post_reason('wrong column type')
        return 'fail'

    if rat2.GetRowOfValue(11.0) != 1:
        gdaltest.post_reason('wrong row for value')
        return 'fail'

    if rat2.GetValueAsInt(1, 1) != 200:
        gdaltest.post_reason('wrong field value.')
        return 'fail'

    # unset the RAT
    ds.GetRasterBand(1).SetDefaultRAT(None)

    ds = None

    ds = gdal.Open('tmp/rat_2.pnm')
    rat = ds.GetRasterBand(1).GetDefaultRAT()
    ds = None
    if rat is not None:
        gdaltest.post_reason('expected a NULL RAT.')
        return 'fail'

    gdal.GetDriverByName('PNM').Delete('tmp/rat_2.pnm')

    gdaltest.saved_rat = None

    return 'success'

###############################################################################
# Save an empty RAT (#5451)


def rat_3():

    ds = gdal.GetDriverByName('GTiff').Create('/vsimem/rat_3.tif', 1, 1)
    ds.GetRasterBand(1).SetDefaultRAT(gdal.RasterAttributeTable())
    ds = None

    gdal.GetDriverByName('GTiff').Delete('/vsimem/rat_3.tif')

    return 'success'
##############################################################################


gdaltest_list = [
    rat_1,
    rat_2,
    rat_3,
    None]

if __name__ == '__main__':

    gdaltest.setup_run('rat')
    gdaltest.run_tests(gdaltest_list)

    gdaltest.summarize()
