from nicegui import ui
from datetime import datetime

def format_date(date_str):
    # Parse the date string and format it consistently
    parsed_date = datetime.fromisoformat(date_str)
    return parsed_date.strftime('%Y-%m-%d %H:%M:%S')

def create_fullcalendar():
    ui.add_head_html("<script src='https://cdn.jsdelivr.net/npm/fullcalendar@6.1.9/index.global.min.js'></script>")
    options = {
        "initialView": 'timeGridWeek',
        "slotMinTime": "05:00:00",
        "slotMaxTime": "22:00:00",
        "allDaySlot": False,
        "timeZone": 'local',
        "height": 'auto',
        "events": []
    }
    return ui.fullcalendar(options, on_click=handle_calendar_click)

def handle_calendar_click(event):
    try:
        start = format_date(event.args['info']['event']['start'])
        end = format_date(event.args['info']['event']['end'])
        title = event.args['info']['event']['title']
    except Exception as e:
        title = None

    if title:
        show_event_card(title, start, end)

def show_event_card(title, start, end):
    card = ui.card().style("background-color: #f0f0f0; position: absolute; z-index: 10000; top: 50%; left: 50%; transform: translate(-50%, -50%);")
    with card:
        ui.label(title)
        ui.button("Click me to remove the event!", on_click=lambda: (fullcal.remove_event(title=title.strip(), start=start, end=end), card.delete()))
        ui.button("Close", on_click=lambda e: card.delete())

def add_event():
    fullcal.addevent("Math 1b03", format_date("2023-11-18 09:30:00"), format_date("2023-11-18 10:20:00"), color="red")

fullcal = create_fullcalendar()
ui.button("Click me to add event", on_click=add_event)
ui.run()