#!/usr/bin/env python3

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk
import subprocess
import shlex


from desktop_tool import DesktopToolWidget
from desktop_tool import get_icon as get_icon

from peppermint_sp_parse_xml import Peppermint_sp

#=======================================================================

class Config:
    # Position of NoteBook tabs Gtk.PositionType.TOP or Gtk.PositionType.LEFT
    TAB_POS = Gtk.PositionType.LEFT
    # Number of columns
    NCOLUMNS = 3
    # Sizes
    ICON_SIZE = 48
    MAIN_WINDOW_BORDER_WIDTH = 0
    BTN_WIDTH = 150
    BTN_HEIGHT = 50
    # Icons
    MAIN_WINDOW_ICON = "preferences-desktop"
#=======================================================================

DEBUG = False
def debug(msg):
    if DEBUG:
        print("===> debug: " + msg)

class Notebook(Gtk.Notebook):

    def __init__(self):
        Gtk.Notebook.__init__(self)
        self.set_tab_pos(Config.TAB_POS)

class Table(Gtk.Grid):
    def __init__(self):
        Gtk.Grid.__init__(self)
        
    def attach(self, row, col, widget):
        Gtk.Grid.attach(self, widget, col, row, 1, 1)

class CategoryFrame(Gtk.Frame) :

    def __init__(self, category):
        self.btn_height = Config.BTN_HEIGHT
        self.btn_width = Config.BTN_WIDTH
        
        Gtk.Frame.__init__(self)

        self.alignment = Gtk.Alignment.new(0.0, 0.0, 1.0, 1.0)
        self.alignment.set_padding(10, 10, 10, 10)
        self.add(self.alignment)
       
        self.table = Table()
        self.alignment.add(self.table)
        
        self.tool_button = []

        self.load_tools(category)

        
        
    def load_tools(self, category):
        
        row = 0
        col = 0
        i = 0
        for tool in category.tools:
            if Config.TAB_POS == Gtk.PositionType.LEFT:
                orientation = Gtk.Orientation.VERTICAL
                wrap_len = 20
            else:
                orientation = Gtk.Orientation.HORIZONTAL
                wrap_len = 0 # no wrap
            icon_button = DesktopToolWidget(tool.label, tool.icon, Config.ICON_SIZE, orientation, wrap = wrap_len)
            self.tool_button.insert(i, icon_button)
            self.tool_button[i].set_size_request(self.btn_width, self.btn_height)
            self.tool_button[i].connect("button_press_event", self.on_item_activated, tool.action)

            self.table.attach(row, col, self.tool_button[i])
            self.table.set_column_spacing(10)
            self.table.set_row_spacing(10)
            i += 1
            col += 1
            if col == Config.NCOLUMNS:
                col = 0
                row += 1 
        
    def on_item_activated(self, button, event, action):
        if event.type == Gdk.EventType.BUTTON_PRESS and event.button == 1:
            print("on_item_activated: button [%s]" % action)
            # Convert utf-8 string to ascii
            udata = action.encode("utf-8")
            asciidata = udata.decode("ascii","ignore")

            # Build the args list expected by subprocess.Popen
            args = shlex.split(asciidata)
            # And start action in a subprocess
            print(args)
            process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)


class MainWindow:
    
    def __init__(self):
        window = Gtk.Window(Gtk.WindowType.TOPLEVEL)
        window.set_position(Gtk.WindowPosition.CENTER)
        window.set_margin_end(Config.MAIN_WINDOW_BORDER_WIDTH)
        pixbuf = get_icon(Config.MAIN_WINDOW_ICON, 16)
        window.set_icon(pixbuf)
        window.connect("delete_event", self.onDeleteEvent)

        # Create a new notebook
        self.notebook = Notebook()

        # Add the tab pages
        cat_index = 0
        
        peppermint_sp = Peppermint_sp("peppermint_sp.xml")

        window.set_title(peppermint_sp.title)

        for category in peppermint_sp.categories:
            
            category_name = category.title
            
            if True:
                tab_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=2)
                tab_label = Gtk.Label(category_name)
                cat_index += 1

                pixbuf = get_icon(category.icon, Config.ICON_SIZE)
                tab_icon = Gtk.Image.new_from_pixbuf(pixbuf)
                
                tab_icon.set_size_request(-1, 60)
                tab_box.pack_start(tab_icon, False, False, 0)
                tab_box.pack_start(tab_label, False, False, 0)

                tab_box.show_all()

            else:
                tab_box = DesktopToolWidget(category_name, category.icon, Config.ICON_SIZE, Gtk.Orientation.HORIZONTAL)
            
            for tool in category.tools:
                frame = CategoryFrame(category)
                frame.show_all()
            
            self.notebook.append_page(frame, tab_box)
        
        # Set what page to start at
        self.notebook.set_current_page(0)
        self.notebook.show_all()
        window.add(self.notebook)
        
        window.show_all()

    def onDeleteEvent(self, widget, event=None):
        Gtk.main_quit()
        return False


def main():
    Gtk.main()
    return 0


if __name__ == "__main__":
    try:
        MainWindow()
        main()
    except KeyboardInterrupt:
        print("\nBye.")
        sys.exit()