Add running personal records and historical PR badges

tests/test_records.py

@@ -0,0 +1,64 @@
+from datetime import UTC, datetime, timedelta
+from types import SimpleNamespace
+
+import pytest
+
+from app.records import best_efforts, record_book
+
+
+def run(points, id=1, sport="running"):
+    return SimpleNamespace(
+        id=id,
+        sport=sport,
+        started_at=datetime(2026, 1, 1, tzinfo=UTC) + timedelta(days=id),
+        samples=[{"distance": d, "time": t} for d, t in points],
+    )
+
+
+def test_fastest_window_can_start_between_samples():
+    efforts = best_efforts(run([(0, 0), (600, 300), (1500, 480), (2000, 730)]))
+    assert efforts[0]["seconds"] == pytest.approx(230)
+    assert efforts[0]["start_m"] == 500
+    assert efforts[1]["seconds"] == 730
+
+
+def test_stops_inside_count_but_boundary_stops_do_not():
+    efforts = best_efforts(run([(0, 0), (0, 60), (500, 210), (500, 270), (1000, 420), (1000, 480)]))
+    assert efforts[0]["seconds"] == 360
+
+
+@pytest.mark.parametrize(
+    "middle",
+    [
+        [(None, 150)],
+        [(float("nan"), 150)],
+        [(400, 200), (100, 210)],
+        [(500, 150), (600, 140)],
+    ],
+)
+def test_invalid_or_reset_data_cannot_be_bridged(middle):
+    assert best_efforts(run([(0, 0), *middle, (1000, 330)])) == []
+
+
+def test_missing_time_short_run_and_other_sports_have_no_records():
+    assert best_efforts(run([(0, None), (5000, None)])) == []
+    assert best_efforts(run([(0, 0), (999.99, 300)])) == []
+    assert best_efforts(run([(0, 0), (5000, 300)], sport="cycling")) == []
+
+
+def test_record_history_backfills_ties_and_improvements():
+    first = run([(0, 0), (1000, 300)], id=1)
+    faster = run([(0, 0), (1000, 290)], id=2)
+    tie = run([(0, 0), (1000, 290)], id=3)
+    slower = run([(0, 0), (1000, 320)], id=4)
+    book = record_book([slower, tie, faster, first])
+    assert book["records"][0]["activity"] is faster
+    assert [book["runs"][i][0]["pr"] for i in range(1, 5)] == [True, True, False, False]
+    assert record_book([first, slower])["records"][0]["activity"] is first
+
+
+def test_all_distances_and_timestamp_gaps_use_elapsed_time():
+    efforts = best_efforts(run([(0, 100), (42195, 12758.5)]))
+    assert len(efforts) == 6
+    assert efforts[0]["seconds"] == pytest.approx(300)
+    assert efforts[-1]["seconds"] == 12658.5