"""Tests for the asyncpraw wrapper — uses an in-test fake Submission iterator."""
from __future__ import annotations

from collections.abc import AsyncIterator
from dataclasses import dataclass
from datetime import datetime
from unittest.mock import AsyncMock, MagicMock

import pytest

from fire_planner.examples.praw_source import fetch_top


@dataclass
class _FakeSub:
    id: str
    title: str
    selftext: str
    permalink: str
    created_utc: float


def _async_iter(items: list[_FakeSub]) -> AsyncIterator[_FakeSub]:
    async def _gen() -> AsyncIterator[_FakeSub]:
        for it in items:
            yield it
    return _gen()


@pytest.mark.asyncio
async def test_fetch_top_normalises_submissions() -> None:
    fakes = [
        _FakeSub(
            id="abc1",
            title="t1",
            selftext="b1",
            permalink="/r/financialindependence/comments/abc1/",
            created_utc=datetime(2026, 1, 1).timestamp(),
        ),
        _FakeSub(
            id="abc2",
            title="t2",
            selftext="b2",
            permalink="/r/financialindependence/comments/abc2/",
            created_utc=datetime(2026, 2, 1).timestamp(),
        ),
    ]
    mock_subreddit = MagicMock()
    mock_subreddit.top = MagicMock(return_value=_async_iter(fakes))

    mock_reddit = MagicMock()
    mock_reddit.subreddit = AsyncMock(return_value=mock_subreddit)

    posts = [p async for p in fetch_top(mock_reddit, "financialindependence", "all", limit=1000)]
    assert len(posts) == 2
    assert posts[0].reddit_id == "abc1"
    assert posts[0].url.endswith("/r/financialindependence/comments/abc1/")
    assert posts[1].title == "t2"