input_boolean.bathroom_auto_mode = 'on'
pyscript.bathroom_intended_state = state.get('light.bathroom')
log.info('Running Bathroom Light script')

min_elev = -6
max_elev = 0

min_bright = 1
max_bright = 99

@state_trigger("binary_sensor.bath_motion == 'on'")
def set_intended_on_state():
    pyscript.bathroom_intended_state = 'on'
    log.info('Set bathroom light intended state: On')

@state_trigger("binary_sensor.bath_motion == 'off'", state_hold = 30*60)
def set_intended_off_state():
    pyscript.bathroom_intended_state = 'off'
    log.info('Set bathroom light intended state: Off')

@state_trigger("pyscript.bathroom_intended_state == 'on' and float(sun.sun.elevation)")
@state_active("input_boolean.bathroom_auto_mode == 'on'")
def turn_on_light_if_auto():
    intended_brightness = calc_brightness_from_elevation(sun.sun.elevation, min_elev, max_elev, min_bright, max_bright)
    light.turn_on(entity_id = 'light.bathroom', brightness_pct = intended_brightness)
    light.turn_on(entity_id = 'light.bath_mirror', brightness_pct = 1)
    log.info(f'Set bathroom light actual state in auto mode: On ({intended_brightness} %)')

@state_trigger("pyscript.bathroom_intended_state == 'off'")
@state_active("input_boolean.bathroom_auto_mode == 'on'")
def turn_off_light_if_auto():
    light.turn_off(entity_id = 'light.bathroom')
    light.turn_off(entity_id = 'light.bath_mirror')
    log.info('Set bathroom light actual state in auto mode: Off')

@time_trigger("period(midnight, 1 days)")
def reset_auto_state():
    input_boolean.bathroom_auto_mode = 'on'
    log.info("Set bathroom light state: Auto")

@state_trigger("light.bathroom != pyscript.bathroom_intended_state", state_hold = 1)
def set_manual_state():
    input_boolean.bathroom_auto_mode = 'off'
    log.info("Set bathroom light state: Manual")

def calc_brightness_from_elevation(elevation, min_elevation=-6, max_elevation=0, min_brightness=1, max_brightness=99):
    if elevation < min_elevation:
        elevation = min_elevation
    elif elevation > max_elevation:
        elevation = max_elevation
    return (max_brightness - min_brightness)*(elevation - min_elevation)/(max_elevation - min_elevation) + min_brightness