# tests/test_board_history.py
from __future__ import annotations

import json
import os
import tempfile
import unittest
from pathlib import Path
from unittest.mock import patch

from daily.board_history import extract_shown_keys, load_recent_shown_keys, merge_wecom_shown_into_data
from daily.config import board_dedup_days, news_backfill_enabled


class ConfigDiversityTests(unittest.TestCase):
    def test_board_dedup_days_default(self):
        with patch.dict(os.environ, {}, clear=True):
            self.assertEqual(board_dedup_days(), 7)

    def test_news_backfill_default_off(self):
        with patch.dict(os.environ, {}, clear=True):
            self.assertFalse(news_backfill_enabled())


class ShownKeysTests(unittest.TestCase):
    def test_extract_github_repo_keys(self):
        items = [{"repo": "a/b"}, {"repo": "c/d"}]
        self.assertEqual(extract_shown_keys("github_trending", items), ["a/b", "c/d"])

    def test_load_recent_reads_wecom_shown_not_baseline(self):
        with tempfile.TemporaryDirectory() as tmp:
            out = Path(tmp)
            # 前日：shown 只有 x/y；baseline raw 含 a/b —— 周去重只能看到 x/y
            payload = {
                "data": {
                    "date": "2026-07-13",
                    "movement_baseline": {
                        "github_trending": [{"repo": "a/b"}, {"repo": "x/y"}],
                    },
                    "wecom_shown_keys": {"github_trending": ["x/y"]},
                }
            }
            (out / "2026-07-13.data.json").write_text(
                json.dumps(payload, ensure_ascii=False), encoding="utf-8"
            )
            with patch("daily.board_history.OUTPUT_DIR", out):
                keys = load_recent_shown_keys("2026-07-14", lookback_days=7)
            self.assertEqual(keys["github_trending"], {"x/y"})
            self.assertNotIn("a/b", keys["github_trending"])

    def test_merge_shown_does_not_touch_baseline(self):
        data = {
            "movement_baseline": {"github_trending": [{"repo": "raw/one"}]},
        }
        merged = merge_wecom_shown_into_data(
            data, {"github_trending": ["shown/one"]}
        )
        self.assertEqual(
            merged["movement_baseline"]["github_trending"][0]["repo"], "raw/one"
        )
        self.assertEqual(merged["wecom_shown_keys"]["github_trending"], ["shown/one"])


if __name__ == "__main__":
    unittest.main()