Fix DateRangeSlider bug for intraday data > 1 year

Fixes bug where slider operation becomes erratic when data is
intraday and date range is greater than one year. Eratic
behaviour caused by, in this context, slider labels being set to a
format that excludes the year.

src/market_analy/gui_parts.py

@@ -113,7 +113,7 @@ def __init__(
             Passed to `w.Layout` assigned to `ToggleButtons`.
         """
         values = [intervals.to_ptinterval(lab) for lab in labels]
-        tooltips = ["Select date interval" for _ in range(len(values))]
+        tooltips = ["Select tick interval" for _ in range(len(values))]
         super().__init__(
             labels,
             values,

src/market_analy/guis.py

@@ -1439,6 +1439,7 @@ def _reset_chart(self):
             self._interval_selector.set_value_unobserved(self._tick_interval)
         if self._HAS_DRAWDOWN:
             self._drawdown_selector.set_value_unobserved("ATH")
+            self.chart.show_y2()
 
     def _reset(self):
         self.slctr.disable()

src/market_analy/utils/ipywidgets_utils.py

@@ -450,6 +450,9 @@ def _label_format(self, dti: pd.DatetimeIndex):
         else:
             if all(dti == dti.normalize()):
                 fmt = "%y/%m/%d"
+            elif dti[0] + pd.DateOffset(years=1) <= dti[-1]:
+                # errors triggered in slider if %y not present when range >= 1 year
+                fmt = "%y/%m/%d/%H:%M"
             elif dti[-1] - dti[0] > pd.Timedelta(days=28):
                 fmt = "%m/%d/%H:%M"
             else:

tests/test_analysis.py

@@ -1042,6 +1042,7 @@ def verify_52wk_shows_dialog():
         verify_chart_mark_y2_mult_windows(slice(2, -1))
 
         # verify effect of reset button
+        gui._drawdown_selector.value = False
         assert gui._icon_row_top.children[1].tooltip == "Reset"
         gui._icon_row_top.children[1].click()
         assert gui._interval_selector.value == mp.intervals.TDInterval.T5
@@ -1050,6 +1051,8 @@ def verify_52wk_shows_dialog():
         assert gui.chart.plotted_interval == expected_plottable
         assert gui.chart.plottable_interval == expected_plottable
         assert gui.date_slider.slider.value == expected_init
+        assert gui.chart.mark_y2.visible
+        assert gui.chart.axes[2].visible
 
         # verify raises dialog box when try to change interval to 1D for period < 1d
         prices_prev = gui.prices.copy()