import wingapi
import os
import os.path
from wingutils import datatype
from guiutils import formbuilder
from guiutils import dialogs
from guimgr import messages

import shutil

_AI = wingapi.CArgInfo
  


#  #################################################################
#   Make a copy of the file in the current editor. Does not    
#
def save_copy_as(target):
    
  app = wingapi.gApplication
  
  if target:    
    source = app.GetActiveDocument().GetFilename()
  
    #Save the source before making a copy?
    #Uncommewnt next line
    #app.ExecuteCommand('save')
    
    #Abandon if new file that has not been saved. Does not happen if
    #executing 'save' as above
    if source.startswith("unknown:"):
      app.ShowMessageDialog("New File", "New file. Nothing to make a copy of.")
      return
    
    #Unqualified filenames for target will be saved to the scripts directory.
    #Below makes such names point into the source directory:    
    os.chdir(os.path.split(source)[0])   

     #Dialog to confirm action
    #------------------------

    def doit():
      shutil.copyfile(source, target) 
      
    if os.path.exists(target):
      msg = "From %s To: %s\nTarget File exists. Overwrite?" % (source,target)
    else:
      msg = "From %s To: %s\nMake the copy?" % (source,target)
    title = "Save a Copy As"
    buttons = [
      dialogs.CButtonSpec("OK", doit),
      dialogs.CButtonSpec("Cancel", None),
    ]
    dlg = messages.CMessageDialog(wingapi.gApplication.fSingletons, title, msg, (), buttons)
    dlg.RunAsModal(wingapi.gApplication.fSingletons.fWinMgr.GetActiveWindow())    

#Function attributes for save_copy_as. Describes the parameter 'target',
#what it is, how to obtain a value for it.

save_copy_as.arginfo = {}
save_copy_as.arginfo['target'] = _AI("", 
                                      datatype.CType(''), 
                                      formbuilder.CFileSelectorGui(),
                                      label = ("File Name"))
#Where to store the script
save_copy_as.contexts = [wingapi.kContextNewMenu("Scripts")]  
save_copy_as.label = "Save A Copy As ..."

#Specifies when script is avaialable  
def _save_copy_as_available(filename=wingapi.kArgFilename):
    return filename is not None
save_copy_as.available = _save_copy_as_available 

#  #################################################################
#  Rename the current file - updating the current project
#  as needed
#
def rename_file(target):
    app = wingapi.gApplication
    if target:
        source = app.GetActiveDocument().GetFilename()
        os.chdir(os.path.split(source)[0])
        if os.path.exists(target):
          app.ShowMessageDialog("File Exists", "Target file %s exists." % target)
          return
        app.ExecuteCommand('write-file', filename=target)
        os.remove(source)
        project_files = app.GetProject().GetAllFiles()
        if source in project_files:
            app.GetProject().AddFiles([target])
            app.GetProject().RemoveFiles([source])

rename_file.arginfo = {}
rename_file.arginfo['target'] = _AI("", 
                                      datatype.CType(''), 
                                      formbuilder.CFileSelectorGui(),
                                      label = ("File Name")) 
rename_file.contexts = [wingapi.kContextNewMenu("Scripts")]  
rename_file.label = "Rename File ..."

def _rename_file_available(filename=wingapi.kArgFilename):
    return filename is not None
rename_file.available = _rename_file_available