from typing import Optional
from src.pluginbase import PluginBase
from src.plugins.domain.raction import RAction
from src.plugins.logfile.preprocesslineshook import PreProcessLinesHook
from src.plugins.timediff.time_diff_pre_process_lines_hook import TimeDiffPreProcessLinesHook

class TimeDiffPlugin(PluginBase):
    def __init__(self):
        super(TimeDiffPlugin, self).__init__()
        self.time_diff_state = False
        self.time_diff_action = RAction("", lambda: self._toggle_time_diff(),
                                        icon_file="icons/myicons/stopwatch.svg", checkable=True)
        self.time_diff_hook = TimeDiffPreProcessLinesHook()

    def copy(self):
        return TimeDiffPlugin()

    def get_filter_widget_actions(self) -> [RAction]:
        return [
            self.time_diff_action
        ]

    def get_pre_process_lines_hook(self) -> Optional[PreProcessLinesHook]:
        if self.time_diff_state:
            return self.time_diff_hook
        return self.time_diff_hook

    def _toggle_time_diff(self):
        self.time_diff_state = not self.time_diff_state
        self.time_diff_action.set_checked(self.time_diff_state)
        self.time_diff_hook.active = self.time_diff_state