import time, os
from functools import partial
import copy

from PyQt5.QtCore import Qt, pyqtSignal
from PyQt5.QtWidgets import (
    QPushButton,
    QLabel,
    QVBoxLayout,
    QWidget,
    QGridLayout,
    QLineEdit,
    QHBoxLayout,
)

from PyQt5.QtCore import Qt, QMetaObject, Q_RETURN_ARG, pyqtSignal, pyqtSlot

from electrum.gui.qt.util import (
    WindowModalDialog,
    Buttons,
    OkButton,
    CancelButton,
    get_parent_main_window,
)
from electrum.gui.qt.transaction_dialog import TxDialog

from electrum.i18n import _
from electrum.plugin import hook
from electrum.wallet import Multisig_Wallet
from electrum.transaction import PartialTransaction
from electrum import keystore

from .bitbox02 import BitBox02Plugin
from ..hw_wallet.qt import QtHandlerBase, QtPluginBase
from ..hw_wallet.plugin import only_hook_if_libraries_available, LibraryFoundButUnusable


class Plugin(BitBox02Plugin, QtPluginBase):
    icon_unpaired = "bitbox02_unpaired.png"
    icon_paired = "bitbox02.png"

    def create_handler(self, window):
        return BitBox02_Handler(window)

    @only_hook_if_libraries_available
    @hook
    def receive_menu(self, menu, addrs, wallet):
        # Context menu on each address in the Addresses Tab, right click...
        if len(addrs) != 1:
            return
        for keystore in wallet.get_keystores():
            if type(keystore) == self.keystore_class:

                def show_address(keystore=keystore):
                    keystore.thread.add(
                        partial(self.show_address, wallet, addrs[0], keystore=keystore)
                    )

                device_name = "{} ({})".format(self.device, keystore.label)
                menu.addAction(_("Show on {}").format(device_name), show_address)

    @only_hook_if_libraries_available
    @hook
    def show_xpub_button(self, main_window, dialog, labels_clayout):
        # user is about to see the "Wallet Information" dialog
        # - add a button to show the xpub on the BitBox02 device
        wallet = main_window.wallet
        if not any(type(ks) == self.keystore_class for ks in wallet.get_keystores()):
            # doesn't involve a BitBox02 wallet, hide feature
            return

        btn = QPushButton(_("Show on BitBox02"))

        def on_button_click():
            selected_keystore_index = 0
            if labels_clayout is not None:
                selected_keystore_index = labels_clayout.selected_index()
            keystores = wallet.get_keystores()
            selected_keystore = keystores[selected_keystore_index]
            derivation = selected_keystore.get_derivation_prefix()
            if type(selected_keystore) != self.keystore_class:
                main_window.show_error("Select a BitBox02 xpub")
            selected_keystore.get_client().get_xpub(
                derivation, keystore.xtype_from_derivation(derivation), True
            )

        btn.clicked.connect(lambda unused: on_button_click())
        return btn


class BitBox02_Handler(QtHandlerBase):
    setup_signal = pyqtSignal()

    def __init__(self, win):
        super(BitBox02_Handler, self).__init__(win, "BitBox02")
        self.setup_signal.connect(self.setup_dialog)

    def message_dialog(self, msg):
        self.clear_dialog()
        self.dialog = dialog = WindowModalDialog(
            self.top_level_window(), _("BitBox02 Status")
        )
        l = QLabel(msg)
        vbox = QVBoxLayout(dialog)
        vbox.addWidget(l)
        dialog.show()

    def attestation_failed_warning(self, msg):
        self.clear_dialog()
        self.dialog = dialog = WindowModalDialog(None, "BitBox02 Attestation Failed")
        l = QLabel(msg)
        vbox = QVBoxLayout(dialog)
        vbox.addWidget(l)
        okButton = OkButton(dialog)
        vbox.addWidget(okButton)
        dialog.setLayout(vbox)
        dialog.exec_()
        return

    def pairing_code_dialog(self, code):
        self.clear_dialog()
        self.dialog = dialog = WindowModalDialog(None, "BitBox02 Pairing Code")
        l = QLabel(code)
        vbox = QVBoxLayout(dialog)
        vbox.addWidget(l)
        vbox.addLayout(Buttons(CancelButton(dialog), OkButton(dialog)))
        dialog.setLayout(vbox)
        dialog.exec_()
        return

    def get_setup(self):
        self.done.clear()
        self.setup_signal.emit()
        self.done.wait()
        return

    def name_multisig_account(self):
        return QMetaObject.invokeMethod(
            self,
            "_name_multisig_account",
            Qt.BlockingQueuedConnection,
            Q_RETURN_ARG(str),
        )

    @pyqtSlot(result=str)
    def _name_multisig_account(self):
        dialog = WindowModalDialog(None, "Create Multisig Account")
        vbox = QVBoxLayout()
        label = QLabel(
            _(
                "Enter a descriptive name for your multisig account.\nYou should later be able to use the name to uniquely identify this multisig account"
            )
        )
        hl = QHBoxLayout()
        hl.addWidget(label)
        name = QLineEdit()
        name.setMaxLength(30)
        name.resize(200, 40)
        he = QHBoxLayout()
        he.addWidget(name)
        okButton = OkButton(dialog)
        hlb = QHBoxLayout()
        hlb.addWidget(okButton)
        hlb.addStretch(2)
        vbox.addLayout(hl)
        vbox.addLayout(he)
        vbox.addLayout(hlb)
        dialog.setLayout(vbox)
        dialog.exec_()
        return name.text().strip()

    def setup_dialog(self):
        self.show_error(_("Please initialize your BitBox02 while connected."))
        return