Rewrite parser: use proximity clustering instead of speed-based detection

work_trace/wizards/wt_import_timeline_wizard.py

@@ -2,13 +2,17 @@ from odoo import models, fields, api, _
 from odoo.exceptions import UserError
 import json
 import base64
-from datetime import datetime
+import bisect
+from datetime import datetime, timedelta
 from math import radians, sin, cos, sqrt, atan2
+from collections import Counter
 
-STILL_ACTIVITIES = {'STILL', 'UNKNOWN', 'TILTING', 'EXITING_VEHICLE'}
 VEHICLE_ACTIVITIES = {'IN_VEHICLE', 'IN_ROAD_VEHICLE', 'IN_RAIL_VEHICLE', 'IN_TWO_WHEELER_VEHICLE'}
 WALKING_ACTIVITIES = {'WALKING', 'ON_FOOT', 'RUNNING', 'ON_BICYCLE'}
 
+# Positions within this distance (meters) are considered the same location
+PROXIMITY_METERS = 200
+
 
 def _haversine_miles(lat1, lon1, lat2, lon2):
     R = 3958.8
@@ -18,6 +22,10 @@ def _haversine_miles(lat1, lon1, lat2, lon2):
     return R * 2 * atan2(sqrt(a), sqrt(1 - a))
 
 
+def _distance_meters(lat1, lon1, lat2, lon2):
+    return _haversine_miles(lat1, lon1, lat2, lon2) * 1609.34
+
+
 def _get_travel_mode(activity_type):
     if activity_type in VEHICLE_ACTIVITIES:
         return 'driving'
@@ -26,6 +34,15 @@ def _get_travel_mode(activity_type):
     return 'unknown'
 
 
+def _dominant_travel_mode(activities, start_ts, end_ts):
+    """Get dominant travel mode from activity records between two timestamps."""
+    window = [a for a in activities if start_ts <= a['ts'] <= end_ts]
+    if not window:
+        return 'unknown'
+    counts = Counter(a['type'] for a in window)
+    return _get_travel_mode(counts.most_common(1)[0][0])
+
+
 class WtImportTimelineWizard(models.TransientModel):
     _name = 'wt.import.timeline.wizard'
     _description = 'Import Google Timeline'
@@ -37,11 +54,15 @@ class WtImportTimelineWizard(models.TransientModel):
         default=5,
         help='Ignore stops shorter than this duration'
     )
+    proximity_meters = fields.Integer(
+        string='Location Proximity (meters)',
+        default=200,
+        help='GPS positions within this distance are grouped as the same location'
+    )
     geocode = fields.Boolean(
         string='Resolve Addresses via OpenStreetMap',
         default=True,
     )
-    result_message = fields.Char(string='Result', readonly=True)
 
     def action_import(self):
         self.ensure_one()
@@ -51,7 +72,7 @@ class WtImportTimelineWizard(models.TransientModel):
         except Exception as e:
             raise UserError(_('Invalid JSON file: %s') % str(e))
 
-        stops = self._parse_timeline(data)
+        stops = self._parse_timeline(data, self.proximity_meters)
         if not stops:
             raise UserError(_('No location stops found in the uploaded file.'))
 
@@ -78,12 +99,12 @@ class WtImportTimelineWizard(models.TransientModel):
                 stop['distance_from_previous'] = 0.0
                 stop['travel_time_from_previous'] = 0.0
 
-        # Get existing arrived_at timestamps to skip duplicates
+        # Get existing arrived_at timestamps to avoid duplicates
         LocationLog = self.env['wt.location.log']
         existing = set(
-            LocationLog.search([]).mapped(
-                lambda r: r.arrived_at.strftime('%Y-%m-%d %H:%M:%S') if r.arrived_at else ''
-            )
+            r.arrived_at.strftime('%Y-%m-%d %H:%M:%S')
+            for r in LocationLog.search([])
+            if r.arrived_at
         )
 
         created_ids = []
@@ -93,7 +114,6 @@ class WtImportTimelineWizard(models.TransientModel):
             departed = stop['departed_at'].replace(tzinfo=None)
             arrived_str = arrived.strftime('%Y-%m-%d %H:%M:%S')
 
-            # Skip if already imported
             if arrived_str in existing:
                 skipped += 1
                 continue
@@ -128,7 +148,15 @@ class WtImportTimelineWizard(models.TransientModel):
             'target': 'current',
         }
 
-    def _parse_timeline(self, data):
+    def _parse_timeline(self, data, proximity_meters=200):
+        """
+        Parse Google Timeline Edits JSON into location stops.
+
+        Google records positions primarily when the device is stationary.
+        We cluster consecutive positions within proximity_meters into a single stop.
+        The gap between clusters = travel time.
+        Activity records between clusters determine the travel mode.
+        """
         positions = []
         activities = []
 
@@ -140,11 +168,10 @@ class WtImportTimelineWizard(models.TransientModel):
                 point = pos.get('point', {})
                 lat = point.get('latE7', 0) / 1e7
                 lng = point.get('lngE7', 0) / 1e7
-                speed = pos.get('speedMetersPerSecond') or 0.0
                 ts_str = pos.get('timestamp', '')
                 if ts_str and lat and lng:
                     ts = datetime.fromisoformat(ts_str.replace('Z', '+00:00'))
-                    positions.append({'ts': ts, 'lat': lat, 'lng': lng, 'speed': speed})
+                    positions.append({'ts': ts, 'lat': lat, 'lng': lng})
 
             elif 'activityRecord' in raw:
                 ar = raw['activityRecord']
@@ -161,45 +188,58 @@ class WtImportTimelineWizard(models.TransientModel):
         positions.sort(key=lambda x: x['ts'])
         activities.sort(key=lambda x: x['ts'])
 
-        def get_activity_at(ts):
-            if not activities:
-                return 'UNKNOWN'
-            nearest = min(activities, key=lambda a: abs((a['ts'] - ts).total_seconds()))
-            return nearest['type']
-
+        # Cluster positions by proximity
         stops = []
-        current_stop = []
-        last_travel_mode = 'unknown'
+        current_cluster = [positions[0]]
 
-        for pos in positions:
-            activity = get_activity_at(pos['ts'])
-            is_still = activity in STILL_ACTIVITIES or pos['speed'] < 0.5
+        for pos in positions[1:]:
+            prev = current_cluster[-1]
+            dist = _distance_meters(prev['lat'], prev['lng'], pos['lat'], pos['lng'])
 
-            if is_still:
-                current_stop.append(pos)
+            if dist <= proximity_meters:
+                # Same location — extend current cluster
+                current_cluster.append(pos)
             else:
-                last_travel_mode = _get_travel_mode(activity)
-                if len(current_stop) >= 2:
-                    avg_lat = sum(p['lat'] for p in current_stop) / len(current_stop)
-                    avg_lng = sum(p['lng'] for p in current_stop) / len(current_stop)
-                    stops.append({
-                        'arrived_at': current_stop[0]['ts'],
-                        'departed_at': current_stop[-1]['ts'],
-                        'lat': avg_lat,
-                        'lng': avg_lng,
-                        'travel_mode': last_travel_mode,
-                    })
-                current_stop = []
+                # New location — save current cluster as a stop
+                avg_lat = sum(p['lat'] for p in current_cluster) / len(current_cluster)
+                avg_lng = sum(p['lng'] for p in current_cluster) / len(current_cluster)
 
-        if len(current_stop) >= 2:
-            avg_lat = sum(p['lat'] for p in current_stop) / len(current_stop)
-            avg_lng = sum(p['lng'] for p in current_stop) / len(current_stop)
+                # Departed = last position in cluster
+                # Next arrived = first position in new cluster
+                # Travel mode = dominant activity between the two
+                travel_mode = _dominant_travel_mode(
+                    activities,
+                    current_cluster[-1]['ts'],
+                    pos['ts']
+                )
+
+                stops.append({
+                    'arrived_at': current_cluster[0]['ts'],
+                    'departed_at': current_cluster[-1]['ts'],
+                    'lat': avg_lat,
+                    'lng': avg_lng,
+                    'travel_mode': travel_mode,
+                })
+                current_cluster = [pos]
+
+        # Handle last cluster
+        if current_cluster:
+            avg_lat = sum(p['lat'] for p in current_cluster) / len(current_cluster)
+            avg_lng = sum(p['lng'] for p in current_cluster) / len(current_cluster)
             stops.append({
-                'arrived_at': current_stop[0]['ts'],
-                'departed_at': current_stop[-1]['ts'],
+                'arrived_at': current_cluster[0]['ts'],
+                'departed_at': current_cluster[-1]['ts'],
                 'lat': avg_lat,
                 'lng': avg_lng,
-                'travel_mode': last_travel_mode,
+                'travel_mode': 'unknown',
             })
 
+        # For single-position stops (arrived == departed), estimate duration
+        # using half the gap to the next stop
+        for i, stop in enumerate(stops):
+            if stop['arrived_at'] == stop['departed_at']:
+                if i + 1 < len(stops):
+                    gap = (stops[i + 1]['arrived_at'] - stop['arrived_at']).total_seconds()
+                    stop['departed_at'] = stop['arrived_at'] + timedelta(seconds=gap / 2)
+
         return stops