#!/usr/bin/env python
#===============================================================================
# Copyright (C) 2010 Diego Duclos
#
# This file is part of pyfa.
#
# pyfa 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 3 of the License, or
# (at your option) any later version.
#
# pyfa 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with pyfa.  If not, see <http://www.gnu.org/licenses/>.
#===============================================================================

import sys
import re
import config

from optparse import OptionParser, BadOptionError, AmbiguousOptionError

class PassThroughOptionParser(OptionParser):
    """
    An unknown option pass-through implementation of OptionParser.

    OSX passes -psn_0_* argument, which is something that pyfa does not handle. See GH issue #423
    """
    def _process_args(self, largs, rargs, values):
        while rargs:
            try:
                OptionParser._process_args(self,largs,rargs,values)
            except (BadOptionError,AmbiguousOptionError), e:
                largs.append(e.opt_str)

# Parse command line options
usage = "usage: %prog [--root]"
parser = PassThroughOptionParser(usage=usage)
parser.add_option("-r", "--root", action="store_true", dest="rootsavedata", help="if you want pyfa to store its data in root folder, use this option", default=False)
parser.add_option("-w", "--wx28", action="store_true", dest="force28", help="Force usage of wxPython 2.8", default=False)
parser.add_option("-d", "--debug", action="store_true", dest="debug", help="Set logger to debug level.", default=False)
parser.add_option("-t", "--title", action="store", dest="title", help="Set Window Title", default=None)
parser.add_option("-s", "--savepath", action="store", dest="savepath", help="Set the folder for savedata", default=None)

(options, args) = parser.parse_args()

if not hasattr(sys, 'frozen'):

    if sys.version_info < (2,6) or sys.version_info > (3,0):
        print("Pyfa requires python 2.x branch ( >= 2.6 )\nExiting.")
        sys.exit(1)

    try:
        import wxversion
    except ImportError:
        print("Cannot find wxPython\nYou can download wxPython (2.8+) from http://www.wxpython.org/")
        sys.exit(1)

    try:
        if options.force28 is True:
            wxversion.select('2.8')
        else:
            wxversion.select(['3.0', '2.8'])
    except wxversion.VersionError:
        print "Installed wxPython version doesn't meet requirements.\nYou can download wxPython 2.8 or 3.0 from http://www.wxpython.org/"
        sys.exit(1)

    try:
        import sqlalchemy

        saVersion =  sqlalchemy.__version__
        saMatch = re.match("([0-9]+).([0-9]+)([b\.])([0-9]+)", saVersion)
        if saMatch:
            saMajor = int(saMatch.group(1))
            saMinor = int(saMatch.group(2))
            betaFlag = True if saMatch.group(3) == "b" else False
            saBuild = int(saMatch.group(4)) if not betaFlag else 0
            if saMajor == 0 and (saMinor < 5 or (saMinor == 5 and saBuild < 8)):
                print("Pyfa requires sqlalchemy 0.5.8 at least  but current sqlalchemy version is %s\nYou can download sqlalchemy (0.5.8+) from http://www.sqlalchemy.org/".format(sqlalchemy.__version__))
                sys.exit(1)
        else:
            print("Unknown sqlalchemy version string format, skipping check")

    except ImportError:
        print("Cannot find sqlalchemy.\nYou can download sqlalchemy (0.6+) from http://www.sqlalchemy.org/")
        sys.exit(1)
    
    # check also for dateutil module installed.
    try:
        import dateutil.parser  # Copied import statement from service/update.py
    except ImportError:
        print("Cannot find python-dateutil.\nYou can download python-dateutil from https://pypi.python.org/pypi/python-dateutil")
        sys.exit(1)


if __name__ == "__main__":
    # Configure paths
    if options.rootsavedata is True:
        config.saveInRoot = True
        
    # set title if it wasn't supplied by argument
    if options.title == None:
        options.title = "pyfa %s%s - Python Fitting Assistant"%(config.version, "" if config.tag.lower() != 'git' else " (git)")

    config.debug = options.debug
    # convert to unicode if it is set
    if options.savepath is not None:
        options.savepath = unicode(options.savepath)
    config.defPaths(options.savepath)

    # Basic logging initialization
    import logging
    logging.basicConfig()

    # Import everything
    import wx
    import os
    import os.path

    import eos.db
    import service.prefetch
    from gui.mainFrame import MainFrame

    #Make sure the saveddata db exists
    if not os.path.exists(config.savePath):
        os.mkdir(config.savePath)

    eos.db.saveddata_meta.create_all()

    pyfa = wx.App(False)
    MainFrame(options.title)
    pyfa.MainLoop()