from threading import Thread

from asciimatics.widgets import Layout, Label
from zope import component

from ...utils import http_get
from ..CeoFrame import CeoFrame
from ceo_common.interfaces import IConfig


position_names = {
    'president': "President",
    'vice-president': "Vice President",
    'treasurer': "Treasurer",
    'secretary': "Secretary",
    'sysadmin': "Sysadmin",
    'cro': "Chief Returning Officer",
    'librarian': "Librarian",
    'imapd': "IMAPD",
    'webmaster': "Web Master",
    'offsck': "Office Manager",
}


class GetPositionsView(CeoFrame):
    def __init__(self, screen, width, height, model):
        super().__init__(
            screen, height, width, model, 'GetPositions',
            escape_on_q=True,
            on_load=self._on_load)

        cfg = component.getUtility(IConfig)
        avail = cfg.get('positions_available')

        layout = Layout([100])
        self.add_layout(layout)
        layout.add_widget(Label(''))

        self._main_layout = Layout([10, 1, 10], fill_frame=True)
        self.add_layout(self._main_layout)

        self._position_widgets = {}
        for pos in avail:
            self._position_widgets[pos] = self._add_pair(position_names[pos], '')

        self.add_flash_message_layout()
        self.add_buttons(back_btn=True)
        self.fix()

    def _add_blank_line(self):
        self._main_layout.add_widget(Label(' ', 0))
        self._main_layout.add_widget(Label(' ', 2))

    def _add_pair(self, key: str, val: str):
        key_widget = Label(key + ':', align='>')
        value_widget = Label(val, align='<')
        self._main_layout.add_widget(key_widget, 0)
        self._main_layout.add_widget(value_widget, 2)
        return value_widget

    def _on_load(self):
        def target():
            self.flash_message('Looking up positions...')
            try:
                resp = http_get('/api/positions')
                if not resp.ok:
                    return
                positions = resp.json()
                for pos, username in positions.items():
                    self._position_widgets[pos].text = username
            finally:
                self.clear_flash_message(force_update=True)
        Thread(target=target).start()

    def _ceoframe_on_reset(self):
        super()._ceoframe_on_reset()
        # clear the labels
        for widget in self._position_widgets.values():
            widget.text = ''