from __future__ import annotations

import types
from collections import deque
from typing import Any

from src.desktop_overlay import CompletionOverlayPayload, DesktopOverlayManager


class _FakeWidget:
    def __init__(self, root: "_FakeTk", *, width: int = 360, height: int = 160) -> None:
        self._root = root
        self._width = width
        self._height = height
        self._exists = True
        self._after_ids: dict[str, tuple[int, Any]] = {}

    def withdraw(self) -> None:
        return None

    def overrideredirect(self, *_args: Any, **_kwargs: Any) -> None:
        return None

    def attributes(self, *_args: Any, **_kwargs: Any) -> None:
        return None

    def configure(self, *_args: Any, **_kwargs: Any) -> None:
        return None

    def pack(self, *_args: Any, **_kwargs: Any) -> None:
        return None

    def place(self, *_args: Any, **_kwargs: Any) -> None:
        return None

    def update_idletasks(self) -> None:
        return None

    def winfo_width(self) -> int:
        return self._width

    def winfo_height(self) -> int:
        return self._height

    def winfo_exists(self) -> bool:
        return self._exists

    def geometry(self, *_args: Any, **_kwargs: Any) -> None:
        return None

    def deiconify(self) -> None:
        return None

    def destroy(self) -> None:
        self._exists = False

    def after(self, delay_ms: int, callback: Any) -> str:
        after_id = self._root._schedule(delay_ms, callback)
        self._after_ids[after_id] = (delay_ms, callback)
        return after_id

    def after_cancel(self, after_id: str) -> None:
        self._after_ids.pop(after_id, None)
        self._root._cancel(after_id)


class _FakeButton(_FakeWidget):
    def __init__(self, root: "_FakeTk", command: Any | None = None, **_kwargs: Any) -> None:
        super().__init__(root)
        self.command = command


class _FakeTk(_FakeWidget):
    def __init__(self) -> None:
        super().__init__(self)
        self._events: deque[tuple[str, int, Any]] = deque()
        self._event_seq = 0
        self.scheduled_delays: list[int] = []
        self.cards: list[_FakeWidget] = []

    def withdraw(self) -> None:
        return None

    def winfo_screenwidth(self) -> int:
        return 1920

    def _schedule(self, delay_ms: int, callback: Any) -> str:
        after_id = f"after-{self._event_seq}"
        self._event_seq += 1
        self.scheduled_delays.append(delay_ms)
        self._events.append((after_id, delay_ms, callback))
        return after_id

    def _cancel(self, after_id: str) -> None:
        self._events = deque(event for event in self._events if event[0] != after_id)

    def mainloop(self) -> None:
        iterations = 0
        while self._events and iterations < 20:
            after_id, _delay_ms, callback = self._events.popleft()
            iterations += 1
            callback()
            if any(not card.winfo_exists() for card in self.cards):
                return


class _FakeTkModule(types.SimpleNamespace):
    def __init__(self, root: _FakeTk) -> None:
        super().__init__()
        self._root = root

    def Tk(self) -> _FakeTk:
        return self._root

    def Toplevel(self, _root: _FakeTk) -> _FakeWidget:
        card = _FakeWidget(self._root)
        self._root.cards.append(card)
        return card

    def Frame(self, root: _FakeWidget, **_kwargs: Any) -> _FakeWidget:
        return _FakeWidget(root._root)

    def Label(self, root: _FakeWidget, **_kwargs: Any) -> _FakeWidget:
        return _FakeWidget(root._root)

    def Button(self, root: _FakeWidget, command: Any | None = None, **_kwargs: Any) -> _FakeButton:
        return _FakeButton(root._root, command=command)


def test_completion_overlay_auto_dismisses(monkeypatch: Any) -> None:
    root = _FakeTk()
    fake_tk = _FakeTkModule(root)
    monkeypatch.setitem(__import__("sys").modules, "tkinter", fake_tk)

    manager = DesktopOverlayManager(auto_dismiss_seconds=0.01)
    manager._queue.put(
        CompletionOverlayPayload(
            job_id="job-123",
            objective="Write a report",
            return_message="Finished",
            steps=5,
            elapsed_seconds=12.4,
        )
    )

    manager._ui_main()

    assert any(delay == 10 for delay in root.scheduled_delays)
    assert root.cards[0]._exists is False