from .common import LcrConnException, Circuit, JointKind, to_human_readable_value


def _get_joint_kind_symbol(joint_kind: JointKind) -> str:
    match joint_kind:
        case JointKind.SERIES:
            return "S"
        case JointKind.PARALLEL:
            return "P"


def _illustrate_circuit(circuit: Circuit) -> None:
    match circuit.len_devices():
        case 1:
            dev1 = to_human_readable_value(circuit.device_value)
            print(f"{dev1}")
        case 2:
            dev1 = to_human_readable_value(circuit.device_value)
            joint1 = circuit.joints[0]
            j1 = _get_joint_kind_symbol(joint1.joint_kind)
            dev2 = to_human_readable_value(joint1.device_value)
            print(f"[{j1}] ┬ {dev1}")
            print(f"    └ {dev2}")
        case 3:
            dev1 = to_human_readable_value(circuit.device_value)
            joint1 = circuit.joints[0]
            j1 = _get_joint_kind_symbol(joint1.joint_kind)
            dev2 = to_human_readable_value(joint1.device_value)
            joint2 = circuit.joints[1]
            j2 = _get_joint_kind_symbol(joint2.joint_kind)
            dev3 = to_human_readable_value(joint2.device_value)
            print(f"[{j2}] ┬ [{j1}] ┬ {dev1}")
            print(f"    │     └ {dev2}")
            print(f"    └ {dev3}")
        case _:
            raise LcrConnException("Circuit too complex to illustrate")