#!/usr/bin/env python3

import sys
import signal
from functools import partial

from PySide2 import QtCore, QtGui, QtWidgets

from data import Tasks, Log
from task_edit import TaskEdit
from report import Report


class App:
    def __init__(self):
        self.app = QtWidgets.QApplication(sys.argv)

        self.tasks = Tasks()
        self.log = Log()
        self.active_task = self.log.last_log() or "Nothing"

        icon = QtGui.QIcon.fromTheme("appointment-new")

        self.menu = QtWidgets.QMenu()

        self.tray = QtWidgets.QSystemTrayIcon()
        self.tray.setIcon(icon)
        self.tray.setContextMenu(self.menu)
        self.tray.show()
        self.tray.setToolTip("fimefracking")
        self.update_tray_menu()

        self.taskEdit = TaskEdit(None)
        self.taskEdit.accepted.connect(self.tasks_edited)

        self.reportDialog = Report(None)
        self.reportDialog.accepted.connect(self.report_done)

    @QtCore.Slot()
    def tasks_edited(self):
        self.tasks.tasks = self.taskEdit.tasks
        self.update_tray_menu()

    @QtCore.Slot()
    def report_done(self):
        self.active_task = self.log.last_log() or "Nothing"
        self.update_tray_menu()

    def change_task(self, task):
        self.active_task = task
        if task == "Nothing":
            return
        self.log.log(task)
        self.update_tray_menu()

    def update_tray_menu(self):
        self.menu.clear()
        tasks = list(self.tasks.tasks)
        tasks.append("Pause")
        if self.active_task == "Nothing":
            tasks.append("Nothing")

        for t in tasks:
            a = self.menu.addAction(t)
            a.triggered.connect(partial(self.change_task, t))
            if t == self.active_task:
                a.setIcon(QtGui.QIcon.fromTheme("go-next"))

        self.menu.addSeparator()

        new_action = self.menu.addAction("Edit tasks")
        new_action.triggered.connect(self.edit_tasks)

        report_action = self.menu.addAction("Report")
        report_action.triggered.connect(self.report)

        self.menu.addSeparator()

        exit_action = self.menu.addAction("Close")
        exit_action.triggered.connect(self.app.quit)

    def sigterm_handler(self, _signo, _frame):
        self.app.quit()

    def run(self):
        timer = QtCore.QTimer()
        # interrupt event loop regularly for signal handling
        timer.timeout.connect(lambda: None)
        timer.start(500)
        signal.signal(signal.SIGTERM, self.sigterm_handler)
        signal.signal(signal.SIGINT, self.sigterm_handler)
        self.app.exec_()

    @QtCore.Slot()
    def report(self):
        self.reportDialog.set_data(self.log.report())
        self.reportDialog.show()

    @QtCore.Slot()
    def edit_tasks(self):
        self.taskEdit.tasks = self.tasks.tasks
        self.taskEdit.show()


if __name__ == "__main__":
    app = App()
    app.run()