# -*- coding: utf-8 -*-

"""
***************************************************************************
    OTBAlgorithmProvider.py
    ---------------------
    Date                 : August 2012
    Copyright            : (C) 2012 by Victor Olaya
    Email                : volayaf at gmail dot com
***************************************************************************
*                                                                         *
*   This program is free software; you can redistribute it and/or modify  *
*   it under the terms of the GNU General Public License as published by  *
*   the Free Software Foundation; either version 2 of the License, or     *
*   (at your option) any later version.                                   *
*                                                                         *
***************************************************************************
"""

__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'

import os
from PyQt4.QtGui import *
from processing.core.AlgorithmProvider import AlgorithmProvider
from processing.core.ProcessingConfig import ProcessingConfig, Setting
from processing.core.ProcessingLog import ProcessingLog
from processing.otb.OTBUtils import OTBUtils
from processing.otb.OTBAlgorithm import OTBAlgorithm


class OTBAlgorithmProvider(AlgorithmProvider):

    def __init__(self):
        AlgorithmProvider.__init__(self)
        self.activate = True
        self.createAlgsList()

    def getDescription(self):
        return 'Orfeo Toolbox (Image analysis)'

    def getName(self):
        return 'otb'

    def getIcon(self):
        return QIcon(os.path.dirname(__file__) + '/../images/otb.png')

    def _loadAlgorithms(self):
        self.algs = self.preloadedAlgs

    def createAlgsList(self):
        self.preloadedAlgs = []
        folder = OTBUtils.otbDescriptionPath()
        for descriptionFile in os.listdir(folder):
            if descriptionFile.endswith('txt'):
                try:
                    alg = OTBAlgorithm(os.path.join(folder, descriptionFile))
                    if alg.name.strip() != '':
                        self.preloadedAlgs.append(alg)
                    else:
                        ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
                                'Could not open OTB algorithm: '
                                + descriptionFile)
                except Exception, e:
                    ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
                            'Could not open OTB algorithm: ' + descriptionFile)

    def initializeSettings(self):
        AlgorithmProvider.initializeSettings(self)
        ProcessingConfig.addSetting(Setting(self.getDescription(),
                                    OTBUtils.OTB_FOLDER,
                                    'OTB command line tools folder',
                                    OTBUtils.otbPath()))
        ProcessingConfig.addSetting(Setting(self.getDescription(),
                                    OTBUtils.OTB_LIB_FOLDER,
                                    'OTB applications folder',
                                    OTBUtils.otbLibPath()))
        ProcessingConfig.addSetting(Setting(self.getDescription(),
                                    OTBUtils.OTB_SRTM_FOLDER,
                                    'SRTM tiles folder',
                                    OTBUtils.otbSRTMPath()))
        ProcessingConfig.addSetting(Setting(self.getDescription(),
                                    OTBUtils.OTB_GEOID_FILE, 'Geoid file',
                                    OTBUtils.otbGeoidPath()))

    def unload(self):
        AlgorithmProvider.unload(self)
        ProcessingConfig.removeSetting(OTBUtils.OTB_FOLDER)
        ProcessingConfig.removeSetting(OTBUtils.OTB_LIB_FOLDER)