hafas-terminal-app/main.py

95 lines
2.2 KiB
Python

"""
haTerm - v0.1
(c) Kieler Mia, Chiara Wohlwend, Sophia Schmidhofer
haTerm is a Terminal Based hafas client, using the ivb endpoint.
Prompt_toolkit (https://github.com/prompt-toolkit/python-prompt-toolkit) will be used to render a terminal user interface (TUI).
The application will provide routing information and station departures/arrivals.
"""
from backend import HafasClient
import route_planning
import station_monitor
from prompt_toolkit import Application
from prompt_toolkit.layout import Layout, HSplit, VSplit, Window
from prompt_toolkit.widgets import Button, Box
from prompt_toolkit.key_binding import KeyBindings
def pk_menu(client: HafasClient):
"""Display a centered menu with two buttons selectable by arrow keys.
The function runs a full-screen prompt_toolkit application. Left/right
arrows move focus between the buttons; Enter activates the focused
button. The function returns the chosen mode as a string or None when
the user quits.
"""
choice = {'value': None}
def on_rp():
choice['value'] = 'rp'
app.exit()
def on_sm():
choice['value'] = 'sm'
app.exit()
btn_rp = Button("Route Planning", handler=on_rp, width=20)
btn_sm = Button("Station Monitor", handler=on_sm, width=20)
buttons = [btn_rp, btn_sm]
index = {'i': 0}
kb = KeyBindings()
def focus_current():
app.layout.focus(buttons[index['i']])
@kb.add('left')
def _left(event):
index['i'] = max(0, index['i'] - 1)
focus_current()
@kb.add('right')
def _right(event):
index['i'] = min(len(buttons) - 1, index['i'] + 1)
focus_current()
@kb.add('q')
@kb.add('c-q')
@kb.add('c-c')
def _quit(event):
app.exit()
root = HSplit(children=[
Window(),
Box(VSplit(children=[
Window(),
Box(VSplit(children=buttons, padding=6), padding=2, style="bg:#2A71D5 fg:#FFFFFF"),
Window()
])),
Window()
], align='CENTER')
app = Application(layout=Layout(root, focused_element=btn_rp), key_bindings=kb, full_screen=True)
app.run()
return choice['value']
def main():
client = HafasClient()
while True:
result = pk_menu(client)
if result == 'rp':
route_planning.run_route_planning(client)
elif result == 'sm':
station_monitor.run_station_monitor(client)
else:
print("Exiting.")
break
if __name__ == '__main__':
main()