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Fix historic mode: slider directly drives LED matrix instead of auto-playback #3

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Fix historic mode: slider directly drives LED matrix instead of auto-playback #3

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385649f
Initial plan
Copilot Feb 26, 2026
fc691f4
Redesign historic timestamp mode: slider directly controls LED matrix
Copilot Feb 26, 2026
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10 changes: 1 addition & 9 deletions frontend/app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -598,21 +598,13 @@ def main():
value=st.session_state.get("historic_timestamp", min_time),
key="historic_time_slider",
)
speed = st.sidebar.slider(
"Playback Speed (Seconds/Step)",
0.1,
60.0,
10.0,
step=0.1,
key="historic_speed_slider",
)
st.session_state["historic_timestamp"] = selected_datetime
st.sidebar.info(
"Stations are color-coded:\n\n🟢 Green = >10% of bikes are e-bikes\n\n🔵 Blue = Regular bikes available\n\n🔴 Red = No bikes available\n\n⚫ Grey = Out of service"
)
# Update metadata table for historic view
db_manager.update_metadata(
in_type=HISTORIC, viewing_timestamp=selected_datetime, speed=speed
in_type=HISTORIC, viewing_timestamp=selected_datetime
)
else:
st.sidebar.error("Could not connect to database")
Expand Down
49 changes: 14 additions & 35 deletions raspi_code/driver.py
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Original file line number Diff line number Diff line change
Expand Up @@ -185,15 +185,14 @@ def route_mode():
def historic_mode(current_state, timestamp):
stations = db_manager.get_artifact(timestamp)
if len(stations) == 0:
print("No historic data for timestamp, moving to live", timestamp)
db_manager.update_metadata(in_type=LIVE)
print("Warning: No historic data for timestamp", timestamp)
return current_state
clear_all_leds()
for station in stations:
position = station["index"]
color = get_color(station)
LEDS[position] = color
current_state[station["station_id"]] = station
# print("Historic mode: updated LEDs for timestamp", timestamp)
LEDS.show()
return current_state

Expand Down Expand Up @@ -222,14 +221,10 @@ def clear_all_leds():
db_state = db_manager.get_metadata()
mode = db_state.mode

speed = None
station_states = db_manager.get_all_station_status()

# Historic playback state
starting_timestamp = None
historic_timestamps = []
viewing_idx = None
historic_start_index = None
# Historic display state: track the last timestamp rendered to LEDs
last_historic_timestamp = None

while True:
# try:
Expand All @@ -239,33 +234,17 @@ def clear_all_leds():
print("Mode changed from", mode, "to", db_state.mode)
mode = db_state.mode
clear_all_leds()
# reset historic play state when mode changes
historic_timestamps = []
historic_start_index = None
ticks = 0
# reset historic state when mode changes
last_historic_timestamp = None
if mode == HISTORIC:
if db_state.viewing_timestamp != starting_timestamp or speed != db_state.speed:
speed = db_state.speed
starting_timestamp = db_state.viewing_timestamp
historic_timestamps = db_manager.get_timestamps()
viewing_idx = historic_timestamps.index(starting_timestamp)
if not historic_timestamps:
print("No historic timestamps available, switching to live")
db_manager.update_metadata(in_type=LIVE)
starting_timestamp = None
continue
else:
viewing_idx += 1
if viewing_idx >= len(historic_timestamps):
print("Reached end of historic timestamps, switching to live")
db_manager.update_metadata(in_type=LIVE)
starting_timestamp = None
continue

timestamp = historic_timestamps[viewing_idx]
print("Viewing historic timestamp:", timestamp)
historic_mode(station_states, timestamp)
time.sleep(speed)
current_viewing_timestamp = db_state.viewing_timestamp
if current_viewing_timestamp != last_historic_timestamp:
print("Viewing historic timestamp:", current_viewing_timestamp)
if current_viewing_timestamp:
station_states = historic_mode(station_states, current_viewing_timestamp)
last_historic_timestamp = current_viewing_timestamp
time_dormant = max(0, UPDATE_RATE - (time.time() - s_time))
time.sleep(time_dormant)
else:
if mode == LIVE:
station_states = live_mode(station_states)
Expand Down