#!/usr/bin/env python3

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# ***************************************************************************/

import gi

gi.require_version("Gtk", "3.0")
from gi.repository import Gtk

import os.path
import sys

import zenmapCore.I18N  # lgtm[py/unused-import]

RESPONSE_OPEN_DIRECTORY = 1


class AllFilesFileFilter(Gtk.FileFilter):
    def __init__(self):
        Gtk.FileFilter.__init__(self)

        pattern = "*"
        self.add_pattern(pattern)
        self.set_name(_("All files (%s)") % pattern)


class ResultsFileFilter(Gtk.FileFilter):
    def __init__(self):
        Gtk.FileFilter.__init__(self)

        patterns = ["*.xml"]
        for pattern in patterns:
            self.add_pattern(pattern)
        self.set_name(_("Nmap XML files (%s)") % ", ".join(patterns))


class ScriptFileFilter(Gtk.FileFilter):
    def __init__(self):
        Gtk.FileFilter.__init__(self)

        patterns = ["*.nse"]
        for pattern in patterns:
            self.add_pattern(pattern)
        self.set_name(_("NSE scripts (%s)") % ", ".join(patterns))


class AllFilesFileChooserDialog(Gtk.FileChooserDialog):
    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.OPEN,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          Gtk.STOCK_OPEN, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)
        self.set_default_response(Gtk.ResponseType.OK)
        self.add_filter(AllFilesFileFilter())


class ResultsFileSingleChooserDialog(Gtk.FileChooserDialog):
    """This results file choose only allows the selection of single files, not
    directories."""
    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.OPEN,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          Gtk.STOCK_OPEN, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)
        self.set_default_response(Gtk.ResponseType.OK)
        for f in (ResultsFileFilter(), AllFilesFileFilter()):
            self.add_filter(f)


class ResultsFileChooserDialog(Gtk.FileChooserDialog):
    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.OPEN,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          "Open Directory", RESPONSE_OPEN_DIRECTORY,
                          Gtk.STOCK_OPEN, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)
        self.set_default_response(Gtk.ResponseType.OK)
        for f in (ResultsFileFilter(), AllFilesFileFilter()):
            self.add_filter(f)


class ScriptFileChooserDialog(Gtk.FileChooserDialog):
    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.OPEN,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          Gtk.STOCK_OPEN, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)
        self.set_default_response(Gtk.ResponseType.OK)
        self.set_select_multiple(True)
        for f in (ScriptFileFilter(), AllFilesFileFilter()):
            self.add_filter(f)


class SaveResultsFileChooserDialog(Gtk.FileChooserDialog):
    TYPES = (
        (_("By extension"), None, None),
        (_("Nmap XML format (.xml)"), "xml", ".xml"),
        (_("Nmap text format (.nmap)"), "text", ".nmap"),
    )
    # For the "By Extension" choice.
    EXTENSIONS = {
        ".xml": "xml",
        ".nmap": "text",
        ".txt": "text",
    }

    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.SAVE,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          Gtk.STOCK_SAVE, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)

        types_store = Gtk.ListStore.new([str, str, str])
        for type in self.TYPES:
            types_store.append(type)

        self.combo = Gtk.ComboBox.new_with_model(types_store)
        cell = Gtk.CellRendererText()
        self.combo.pack_start(cell, True)
        self.combo.add_attribute(cell, "text", 0)
        self.combo.connect("changed", self.combo_changed_cb)
        self.combo.set_active(1)

        hbox = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, 6)
        hbox.pack_end(self.combo, False, True, 0)
        hbox.pack_end(Gtk.Label.new(_("Select File Type:")), False, True, 0)
        hbox.show_all()

        self.set_extra_widget(hbox)
        self.set_do_overwrite_confirmation(True)

        self.set_default_response(Gtk.ResponseType.OK)

    def combo_changed_cb(self, combo):
        filename = self.get_filename() or ""
        dir, basename = os.path.split(filename)
        if dir != self.get_current_folder():
            self.set_current_folder(dir)

        # Find the recommended extension.
        new_ext = combo.get_model().get_value(combo.get_active_iter(), 2)
        if new_ext is not None:
            # Change the filename to use the recommended extension.
            root, ext = os.path.splitext(basename)
            if len(ext) == 0 and root.startswith("."):
                root = ""
            self.set_current_name(root + new_ext)

    def get_extension(self):
        return os.path.splitext(self.get_filename())[1]

    def get_format(self):
        """Get the save format the user has chosen. It is a string, either
        "text" or "xml"."""
        filetype = self.combo.get_model().get_value(
                self.combo.get_active_iter(), 1)
        if filetype is None:
            # Guess based on extension. "xml" is the default if unknown.
            return self.EXTENSIONS.get(self.get_extension(), "xml")
        return filetype


class DirectoryChooserDialog(Gtk.FileChooserDialog):
    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.SELECT_FOLDER,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          Gtk.STOCK_OPEN, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)
        self.set_default_response(Gtk.ResponseType.OK)


class SaveToDirectoryChooserDialog(Gtk.FileChooserDialog):
    def __init__(self, title="", parent=None,
                 action=Gtk.FileChooserAction.SELECT_FOLDER,
                 buttons=(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                          Gtk.STOCK_SAVE, Gtk.ResponseType.OK), backend=None):

        Gtk.FileChooserDialog.__init__(self, title=title, parent=parent,
                                          action=action, buttons=buttons)
        self.set_default_response(Gtk.ResponseType.OK)
