from __future__ import annotations

from collections import deque
from math import cos, sin
from threading import Event, Thread
from time import sleep
from typing import Any

import dearpygui.dearpygui as _dpg

import dpg_map as dpgm

dpg: Any = _dpg


def main() -> None:
    dpgm.configure(user_agent="dpg-map trajectory_live_thread example")
    stop = Event()
    points: deque[tuple[float, float]] = deque(maxlen=240)

    dpg.create_context()
    dpg.create_viewport(title="dpg-map live trajectory", width=1000, height=700)

    with (
        dpg.window(label="Live Trajectory", width=-1, height=-1),
        dpgm.map_widget(
            tag="live-trajectory-map",
            center=(47.9029, 1.9093),
            zoom=15,
            width=-1,
            height=-1,
        ),
    ):
        dpgm.add_trajectory(
            "track",
            points=[],
            color=(250, 190, 80, 255),
            thickness=3.0,
            show_points=True,
            point_stride=12,
        )
        dpgm.add_marker(
            "head",
            lat=47.9029,
            lon=1.9093,
            color=(72, 205, 154, 255),
            radius=6,
        )

    def update_trajectory() -> None:
        tick = 0
        while not stop.is_set():
            angle = tick * 0.06
            lat = 47.9029 + sin(angle) * 0.0016 + sin(angle * 2.7) * 0.00025
            lon = 1.9093 + cos(angle) * 0.0016
            points.append((lat, lon))
            snapshot = tuple(points)
            dpgm.update_trajectory("track", points=snapshot, map_tag="live-trajectory-map")
            dpgm.update_marker("head", lat=lat, lon=lon, map_tag="live-trajectory-map")
            tick += 1
            sleep(1 / 20)

    worker = Thread(target=update_trajectory, name="dpg-map-live-trajectory", daemon=True)
    worker.start()
    try:
        dpg.setup_dearpygui()
        dpg.show_viewport()
        dpg.start_dearpygui()
    finally:
        stop.set()
        worker.join(timeout=1.0)
        dpg.destroy_context()


if __name__ == "__main__":
    main()