# -*- coding: utf-8 -*-
# *****************************************************************************
#       Copyright (C) 2003-2006 Gary Bishop.
#       Copyright (C) 2006-2020 Jorgen Stenarson. <jorgen.stenarson@bostream.nu>
#       Copyright (C) 2020 Bassem Girgis. <brgirgis@gmail.com>
#
#  Distributed under the terms of the BSD License.  The full license is in
#  the file COPYING, distributed as part of this software.
# *****************************************************************************
from __future__ import absolute_import, print_function, unicode_literals

import ctypes
from ctypes import windll

from pyreadline3.logger import log

from . import winconstants as c32
from .common import KeyPress

# table for translating virtual keys to X windows key symbols


code2sym_map = {
    c32.VK_CANCEL: 'cancel',
    c32.VK_BACK: 'backspace',
    c32.VK_TAB: 'tab',
    c32.VK_CLEAR: 'clear',
    c32.VK_RETURN: 'return',
    c32.VK_SHIFT: 'shift_l',
    c32.VK_CONTROL: 'control_l',
    c32.VK_MENU: 'alt_l',
    c32.VK_PAUSE: 'pause',
    c32.VK_CAPITAL: 'caps_lock',
    c32.VK_ESCAPE: 'escape',
    c32.VK_SPACE: 'space',
    c32.VK_PRIOR: 'prior',
    c32.VK_NEXT: 'next',
    c32.VK_END: 'end',
    c32.VK_HOME: 'home',
    c32.VK_LEFT: 'left',
    c32.VK_UP: 'up',
    c32.VK_RIGHT: 'right',
    c32.VK_DOWN: 'down',
    c32.VK_SELECT: 'select',
    c32.VK_PRINT: 'print',
    c32.VK_EXECUTE: 'execute',
    c32.VK_SNAPSHOT: 'snapshot',
    c32.VK_INSERT: 'insert',
    c32.VK_DELETE: 'delete',
    c32.VK_HELP: 'help',
    c32.VK_F1: 'f1',
    c32.VK_F2: 'f2',
    c32.VK_F3: 'f3',
    c32.VK_F4: 'f4',
    c32.VK_F5: 'f5',
    c32.VK_F6: 'f6',
    c32.VK_F7: 'f7',
    c32.VK_F8: 'f8',
    c32.VK_F9: 'f9',
    c32.VK_F10: 'f10',
    c32.VK_F11: 'f11',
    c32.VK_F12: 'f12',
    c32.VK_F13: 'f13',
    c32.VK_F14: 'f14',
    c32.VK_F15: 'f15',
    c32.VK_F16: 'f16',
    c32.VK_F17: 'f17',
    c32.VK_F18: 'f18',
    c32.VK_F19: 'f19',
    c32.VK_F20: 'f20',
    c32.VK_F21: 'f21',
    c32.VK_F22: 'f22',
    c32.VK_F23: 'f23',
    c32.VK_F24: 'f24',
    c32.VK_NUMLOCK: 'num_lock,',
    c32.VK_SCROLL: 'scroll_lock',
    c32.VK_APPS: 'vk_apps',
    c32.VK_PROCESSKEY: 'vk_processkey',
    c32.VK_ATTN: 'vk_attn',
    c32.VK_CRSEL: 'vk_crsel',
    c32.VK_EXSEL: 'vk_exsel',
    c32.VK_EREOF: 'vk_ereof',
    c32.VK_PLAY: 'vk_play',
    c32.VK_ZOOM: 'vk_zoom',
    c32.VK_NONAME: 'vk_noname',
    c32.VK_PA1: 'vk_pa1',
    c32.VK_OEM_CLEAR: 'vk_oem_clear',
    c32.VK_NUMPAD0: 'numpad0',
    c32.VK_NUMPAD1: 'numpad1',
    c32.VK_NUMPAD2: 'numpad2',
    c32.VK_NUMPAD3: 'numpad3',
    c32.VK_NUMPAD4: 'numpad4',
    c32.VK_NUMPAD5: 'numpad5',
    c32.VK_NUMPAD6: 'numpad6',
    c32.VK_NUMPAD7: 'numpad7',
    c32.VK_NUMPAD8: 'numpad8',
    c32.VK_NUMPAD9: 'numpad9',
    c32.VK_DIVIDE: 'divide',
    c32.VK_MULTIPLY: 'multiply',
    c32.VK_ADD: 'add',
    c32.VK_SUBTRACT: 'subtract',
    c32.VK_DECIMAL: 'vk_decimal'
}

VkKeyScan = windll.user32.VkKeyScanA


def char_to_keyinfo(char, control=False, meta=False, shift=False):
    k = KeyPress()
    vk = VkKeyScan(ord(char))
    if vk & 0xffff == 0xffff:
        print('VkKeyScan("%s") = %x' % (char, vk))
        raise ValueError('bad key')
    if vk & 0x100:
        k.shift = True
    if vk & 0x200:
        k.control = True
    if vk & 0x400:
        k.meta = True
    k.char = chr(vk & 0xff)
    return k


def make_KeyPress(char, state, keycode):
    control = (state & (4 + 8)) != 0
    meta = (state & (1 + 2)) != 0
    shift = (state & 0x10) != 0
    if control and not meta:  # Matches ctrl- chords should pass keycode as char
        char = chr(keycode)
    elif control and meta:  # Matches alt gr and should just pass on char
        control = False
        meta = False
    try:
        keyname = code2sym_map[keycode]
    except KeyError:
        keyname = ""
    out = KeyPress(char, shift, control, meta, keyname)
    return out


if __name__ == "__main__":
    import startup
