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from entities.entity import Entity
from entities.helpers import baseentity_from_index
from events import Event
from players.dictionary import PlayerDictionary


cameras = PlayerDictionary(factory=lambda index: None)


def enable_camera(index, origin, angles):
    if cameras[index] is not None:
        disable_camera(index)

    camera = cameras[index] = Entity.create('point_viewcontrol')
    camera.spawn_flags = 8    # "Infinite Hold Time"
    camera.spawn()

    # Set the angles
    camera.angles = angles

    # Set the origin (TODO: Might be possible to set angles here, too?)
    camera.teleport(origin, None, None)

    # You may also tie your camera to an entity pointer!
    # camera.set_parent(other_entity.pointer, -1)

    base_entity = baseentity_from_index(index)
    camera.call_input('Enable', activator=base_entity, caller=base_entity)


def disable_camera(index):
    camera = cameras.pop(index, None)
    if camera is None:
        return

    camera.call_input('Disable')
    camera.remove()


@Event('round_start')
def on_round_start(game_event):
    for camera in cameras.values():
        if camera is None:
            continue

        camera.call_input('Disable')
        camera.remove()

    cameras.clear()

from commands.typed import TypedSayCommand
from mathlib import Vector


@TypedSayCommand(['camera', 'enable'])
def typed_camera_enable(
        command_info, x:int, y:int, z:int, pitch:int=0, yaw:int=0, roll:int=0):

    origin = Vector(x, y, z)
    angles = Vector(pitch, yaw, roll)

    enable_camera(command_info.index, origin, angles)


@TypedSayCommand(['camera', 'disable'])
def typed_camera_disable(command_info):
    disable_camera(command_info.index)