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

"""
***************************************************************************
    ParameterFile.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__ = '$Format:%H$'

from processing.parameters.Parameter import Parameter


class ParameterFile(Parameter):

    def __init__(self, name='', description='', isFolder=False, optional=True, ext = None):
        Parameter.__init__(self, name, description)
        self.value = None
        self.ext = ext
        self.isFolder = isFolder
        self.optional = optional

    def getValueAsCommandLineParameter(self):
        return '"' + unicode(self.value) + '"'

    def serialize(self):
        return self.__module__.split('.')[-1] + '|' + self.name + '|' \
            + self.description + '|' + str(self.isFolder) + '|' \
            + str(self.optional)

    def setValue(self, obj):
        self.value = unicode(obj)
        if self.value.strip() == '' or self.value is None:
            if not self.optional:
                return False
            else:
                self.value = ''
        if self.ext is not None and self.value != '':
            return self.value.endswith(self.ext)
        return True

    def deserialize(self, s):
        tokens = s.split('|')
        if len(tokens) == 5:
            return ParameterFile(tokens[1], tokens[2], tokens[3] == str(True),
                                 tokens[4] == str(True))
        else:
            return ParameterFile(tokens[1], tokens[2], tokens[3] == str(True))

    def getAsScriptCode(self):
        if self.isFolder:
            return '##' + self.name + '=folder'
        else:
            return '##' + self.name + '=file'
