from PyQt5 import QtWidgets, QtCore
from typing import List

import db.tasks
import gui.tasks.dialog
from model.task import Task, ValidTaskForm
from model.tag import Tag

def open(table, update_task_signal, position):
    rows = set([index.row() for index in table.selectedIndexes()])

    menu = QtWidgets.QMenu(table)

    if len(rows) == 1:
        modify_action = menu.addAction(gui.icon.dialog_open(menu.style()), 'modify')
    else:
        modify_action = QtWidgets.QAction(menu)

    delete_action = menu.addAction(gui.icon.trash(menu.style()), 'delete')

    action = menu.exec_(table.mapToGlobal(position + QtCore.QPoint(15, 20)))
    if action == modify_action and len(rows) == 1:
        row = list(rows)[0]
        (task, tags) = table.get_at(row)
        gui.tasks.dialog.update(table, update_task_signal, row, task, tags).exec_()
    elif action == delete_action:
        gui.tasks.dialog.show_delete(table, rows, lambda: table.delete_rows(rows))