IQ.Pilot Release Commit @ bec7652

iqpilot/common/auto_units.py

@@ -0,0 +1,58 @@
+import time
+
+from iqpilot.common.params import Params
+from iqpilot.common.swaglog import cloudlog
+from iqpilot.common.geo_regions import UNKNOWN_REGION, region_for_position, region_is_metric
+
+CHECK_INTERVAL = 10.0
+CONFIRMATIONS = 3
+
+
+class AutoUnits:
+  def __init__(self, params: Params | None = None):
+    self.params = params or Params()
+    self._next_check = 0.0
+    self._candidate = UNKNOWN_REGION
+    self._confirmations = 0
+
+  def _position(self) -> tuple[float, float, bool]:
+    from iqpilot.selfdrive.ui.lib.nav_helpers import current_or_last_gps_position
+
+    lat, lon, _, valid = current_or_last_gps_position(self.params)
+    return lat, lon, valid
+
+  def update(self, now: float | None = None) -> None:
+    if not self.params.get_bool("IQAutoUnits"):
+      self._candidate = UNKNOWN_REGION
+      self._confirmations = 0
+      return
+
+    now = time.monotonic() if now is None else now
+    if now < self._next_check:
+      return
+    self._next_check = now + CHECK_INTERVAL
+
+    lat, lon, valid = self._position()
+    region = region_for_position(lat, lon) if valid else UNKNOWN_REGION
+    if region == UNKNOWN_REGION:
+      self._confirmations = 0
+      return
+
+    if region != self._candidate:
+      self._candidate = region
+      self._confirmations = 1
+      return
+
+    self._confirmations += 1
+    if self._confirmations < CONFIRMATIONS:
+      return
+
+    if region == self.params.get("IQAutoUnitsRegion"):
+      return
+
+    self.params.put("IQAutoUnitsRegion", region)
+
+    metric = region_is_metric(region)
+    if metric != self.params.get_bool("IsMetric"):
+      self.params.put_bool("IsMetric", metric)
+      cloudlog.warning(f"auto units: {region} detected, switching to {'km/h' if metric else 'mph'}")