# Copyright (c) 2026 Krzysztof Rudnicki. MIT licence.
"""Trigger resolution."""

from __future__ import annotations

import pytest

from signal_bot.registry import CommandContext, CommandRegistry, DuplicateTriggerError


async def _noop(ctx: CommandContext) -> None:
    return None


def test_resolves_a_registered_trigger() -> None:
    registry = CommandRegistry()
    registry.register("cat", ["!cat", "!kot"], _noop)
    assert registry.resolve("!kot") is not None
    assert registry.resolve("!cat").name == "cat"


def test_resolution_is_case_insensitive_and_trims() -> None:
    registry = CommandRegistry()
    registry.register("cat", ["!cat"], _noop)
    assert registry.resolve("  !CAT  ") is not None


def test_unknown_and_prefixless_text_resolves_to_nothing() -> None:
    registry = CommandRegistry()
    registry.register("cat", ["!cat"], _noop)
    assert registry.resolve("!nope") is None
    assert registry.resolve("cat") is None


@pytest.mark.parametrize("text", [None, ""])
def test_empty_text_resolves_to_nothing(text: str | None) -> None:
    assert CommandRegistry().resolve(text) is None


def test_duplicate_trigger_is_rejected() -> None:
    registry = CommandRegistry()
    registry.register("cat", ["!cat"], _noop)
    with pytest.raises(DuplicateTriggerError, match="!cat"):
        registry.register("feline", ["!cat"], _noop)


def test_commands_lists_in_registration_order() -> None:
    registry = CommandRegistry()
    registry.register("cat", ["!cat"], _noop)
    registry.register("dog", ["!dog"], _noop)
    assert [c.name for c in registry.commands] == ["cat", "dog"]