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"""Module-level callables referenced by YAML fixture files."""

from flink_agents.api.events.event import Event, InputEvent, OutputEvent
from flink_agents.api.runner_context import RunnerContext


def increment(event: Event, ctx: RunnerContext) -> None:
    value = InputEvent.from_event(event).input
    ctx.send_event(OutputEvent(output=value + 1))


def decrement(event: Event, ctx: RunnerContext) -> None:
    value = InputEvent.from_event(event).input
    ctx.send_event(OutputEvent(output=value - 1))


def notify(id: str, message: str) -> str:
    return f"notified {id}: {message}"


class Counter:
    """Holder for a class-method action target — exercises the
    ``module:Class.method`` form in YAML function references.
    """

    @staticmethod
    def bump(event: Event, ctx: RunnerContext) -> None:
        value = InputEvent.from_event(event).input
        ctx.send_event(OutputEvent(output=value + 100))
