from enum import Enum, auto

class ComponentVoltageSource(Enum):
    """
    Enum for specifying the voltage source where custom devices are attached
    """
    ENERGY_BUFFER = auto()
    VOLTAGE_REGULATOR = auto()

class PowerOffCondition(Enum):
    """
    Enum for specifying when the device will turn off
    """
    POWER_STATE_EVENT = auto()
    ENERGY_BUFFER_VOLTAGE_THRESHOLD = auto()

class OpModeName(Enum):
    """
    Enum for op_mode_name of system_model.run_step()
    """
    D2VFS_ISR = 'D2VFS_ISR'
    FBTC_ISR = 'FBTC_ISR'

    PROBE_ENERGY_BUFFER = 'PROBE_ENERGY_BUFFER'
    STATE_SAVE = 'STATE_SAVE'
    STATE_RESTORE = 'STATE_RESTORE'

    NVM_I2C = 'NVM_I2C'
    NVM_SPI = 'NVM_SPI'
    EXTERNAL_NVM = 'EXTERNAL_NVM'

    DUMMY = 'DUMMY'
    PROGRAM_EXECUTION = 'PROGRAM_EXECUTION'

    LPM_ENTER = 'LPM_ENTER'
    LPM = 'LPM'
    LPM_EXIT = 'LPM_EXIT'

    ENERGY_BUFFER_RECHARGE = 'ENERGY_BUFFER_RECHARGE'

    STATIC_SCALE_UP = 'STATIC_SCALE_UP'
    STATIC_SCALE_DOWN = 'STATIC_SCALE_DOWN'

    SIMULATE_CYCLES = 'SIMULATE_CYCLES'
    SIMULATE_ADC = 'SIMULATE_ADC'
    SIMULATE_RADIO = 'SIMULATE_RADIO'
    SIMULATE_SENSOR = 'SIMULATE_SENSOR'

    def __str__(self):
        return self.value