# Copyright (c) 2026 Krzysztof Rudnicki. MIT licence.
"""The cat and dog commands, and their data-driven aliases."""

from __future__ import annotations

import json
from typing import TYPE_CHECKING

import httpx
import pytest

from signal_bot.animals import (
    ALIAS_FILE,
    load_aliases,
    register_animal_commands,
)
from signal_bot.decorators import cooldown
from signal_bot.http_client import ImageFetcher
from signal_bot.models import parse_envelope
from signal_bot.registry import CommandContext, CommandRegistry
from tests.conftest import REPLY_GROUP, envelope

if TYPE_CHECKING:
    from pathlib import Path

    from signal_bot.config import Config
    from signal_bot.store import Store
    from signal_bot.transport_fake import FakeTransport

IMAGE = b"png-bytes"


def _fetcher() -> ImageFetcher:
    def handler(request: httpx.Request) -> httpx.Response:
        if "thecatapi" in str(request.url):
            return httpx.Response(200, json=[{"url": "https://cdn/cat.png"}])
        if "dog.ceo" in str(request.url):
            return httpx.Response(200, json={"message": "https://cdn/dog.png"})
        return httpx.Response(200, content=IMAGE)

    return ImageFetcher(httpx.AsyncClient(transport=httpx.MockTransport(handler)))


def _ctx(
    transport: FakeTransport, store: Store, config: Config, name: str, text: str
) -> CommandContext:
    message = parse_envelope(envelope(text=text))
    assert message is not None
    return CommandContext(
        message=message,
        recipient=REPLY_GROUP,
        transport=transport,
        store=store,
        config=config,
        command_name=name,
        now=100.0,
        day="2026-08-29",
    )


def test_alias_file_ships_with_the_package() -> None:
    assert ALIAS_FILE.is_file()
    aliases = load_aliases()
    assert "!cat" in aliases["cat"]
    assert "!pies" in aliases["dog"]


def test_comment_keys_are_skipped(tmp_path: Path) -> None:
    path = tmp_path / "a.json"
    path.write_text(json.dumps({"_comment": "x", "cat": ["!cat"]}), encoding="utf-8")
    assert load_aliases(path) == {"cat": ["!cat"]}


def test_styled_unicode_aliases_resolve() -> None:
    registry = CommandRegistry()
    register_animal_commands(registry, _fetcher())
    assert registry.resolve("!\U0001d5f8\U0001d5fc\U0001d601") is not None
    assert registry.resolve("!miau").name == "cat"
    assert registry.resolve("!szczek").name == "dog"


@pytest.mark.parametrize(("trigger", "name"), [("!cat", "cat"), ("!dog", "dog")])
async def test_commands_post_an_image(
    transport: FakeTransport, store: Store, config: Config, trigger: str, name: str
) -> None:
    registry = CommandRegistry()
    register_animal_commands(registry, _fetcher())
    command = registry.resolve(trigger)
    assert command is not None
    await command.handler(_ctx(transport, store, config, name, trigger))
    assert transport.sent[0].image_base64 is not None
    assert transport.sent[0].recipient == REPLY_GROUP


async def test_decorator_is_applied_when_given(
    transport: FakeTransport, store: Store, config: Config
) -> None:
    registry = CommandRegistry()
    register_animal_commands(registry, _fetcher(), decorate=cooldown(10, "wait {seconds}"))
    store.record_use("uuid-alice", "cat", 100.0, "2026-08-29")
    command = registry.resolve("!cat")
    assert command is not None
    await command.handler(_ctx(transport, store, config, "cat", "!cat"))
    assert transport.texts == ["wait 11"]


def test_custom_alias_table_is_honoured() -> None:
    registry = CommandRegistry()
    register_animal_commands(registry, _fetcher(), aliases={"cat": ["!c"], "dog": ["!d"]})
    assert registry.resolve("!c").name == "cat"
    assert registry.resolve("!cat") is None