Working on voice command logic.
[kiosk.git] / kiosk.py
index 7ffce23d6d85a4b65eb465e231a52d87355b78cc..b043845b33664b7df1abe50f2c67967d8973160f 100755 (executable)
--- a/kiosk.py
+++ b/kiosk.py
 #!/usr/bin/env python3
 
 from datetime import datetime
+import difflib
+import gc
+import linecache
 import os
+import re
 import sys
 from threading import Thread
 import time
 import traceback
-from typing import Optional
+import tracemalloc
+from typing import Optional, List
+from queue import Queue, Empty
+
+import astral  # type: ignore
+from astral.sun import sun  # type: ignore
 
 import constants
 import renderer
 import renderer
 import renderer_catalog
 import chooser
+import listen
 import logging
+import pvporcupine
 import trigger_catalog
 import utils
 
 
-def filter_news_during_dinnertime(page: str) -> bool:
-    now = datetime.now()
-    is_dinnertime = now.hour >= 17 and now.hour <= 20
-    return not is_dinnertime or not (
-        "cnn" in page
-        or "news" in page
-        or "mynorthwest" in page
-        or "seattle" in page
-        or "stranger" in page
-        or "twitter" in page
-        or "wsj" in page
-    )
+def thread_janitor() -> None:
+    tracemalloc.start()
+    tracemalloc_target = 0.0
+    gc_target = 0.0
+    gc.enable()
+
+    while True:
+        now = time.time()
+        if now > tracemalloc_target:
+            tracemalloc_target = now + 30.0
+            snapshot = tracemalloc.take_snapshot()
+            snapshot = snapshot.filter_traces((
+                tracemalloc.Filter(False, "<frozen importlib._bootstrap>"),
+                tracemalloc.Filter(False, "<unknown>"),
+            ))
+            key_type = 'lineno'
+            limit = 10
+            top_stats = snapshot.statistics(key_type)
+            print("janitor: Top %s lines" % limit)
+            for index, stat in enumerate(top_stats[:limit], 1):
+                frame = stat.traceback[0]
+                # replace "/path/to/module/file.py" with "module/file.py"
+                filename = os.sep.join(frame.filename.split(os.sep)[-2:])
+                print("janitor: #%s: %s:%s: %.1f KiB"
+                      % (index, filename, frame.lineno, stat.size / 1024))
+                line = linecache.getline(frame.filename, frame.lineno).strip()
+                if line:
+                    print('janitor:    %s' % line)
 
+            other = top_stats[limit:]
+            if other:
+                size = sum(stat.size for stat in other)
+                print("janitor: %s other: %.1f KiB" % (len(other), size / 1024))
+            total = sum(stat.size for stat in top_stats)
+            print("janitor: Total allocated size: %.1f KiB" % (total / 1024))
+        if now > gc_target:
+            print("janitor: Running gc operation")
+            gc_target = now + 60.0
+            gc.collect()
+        time.sleep(10.0)
 
-def thread_change_current() -> None:
+
+def guess_page(command: str, page_chooser: chooser.chooser) -> str:
+    best_page = None
+    best_score = None
+    for page in page_chooser.get_page_list():
+        page = page.replace('(', ' ')
+        page = page.replace('_', ' ')
+        page = page.replace(')', ' ')
+        page = page.replace('.html', '')
+        page = page.replace('CNNNews', 'news')
+        page = page.replace('CNNTechnology', 'technology')
+        page = page.replace('gocostco', 'costco list')
+        page = page.replace('gohardware', 'hardware list')
+        page = page.replace('gohouse', 'house list honey do')
+        page = page.replace('gcal', 'google calendar events')
+        page = page.replace('mynorthwest', 'northwest news')
+        page = page.replace('myq', 'myq garage door status')
+        page = page.replace('gomenu', 'dinner menu')
+        page = page.replace('wsdot', 'traffic')
+        page = page.replace('gomenu', 'dinner menu')
+        page = page.replace('WSJNews', 'news')
+        page = page.replace('telma', 'telma cabin')
+        page = page.replace('WSJBusiness', 'business news')
+        page = re.sub(r'[0-9]+', '', page)
+        score = SequenceMatcher(None, command, page).ratio()
+        if best_score is None or score > best_score:
+            best_page = page
+    assert best_page is not None
+    return best_page
+
+
+def process_command(command: str, page_history: List[str]) -> str:
+    page = None
+    if 'hold' in command:
+        page = page_history[0]
+    elif 'back' in command:
+        page = page_history[1]
+    elif 'skip' in command:
+        while True:
+            (page, _) = page_chooser.choose_next_page()
+            if page != page_history[0]:
+                break
+    elif 'weather' in command:
+        if 'telma' in command or 'cabin' in command:
+            page = 'weather-telma_3_10800.html'
+        elif 'stevens' in command:
+            page = 'weather-stevens_3_10800.html'
+        else:
+            page = 'weather-home_3_10800.html'
+    elif 'cabin' in command:
+        if 'list' in command:
+            page = 'Cabin-(gocabin)_2_3600.html'
+        else:
+            page = 'hidden/cabin_driveway.html'
+    elif 'news' in command or 'headlines' in command:
+        page = 'cnn-CNNNews_4_25900.html'
+    elif 'clock' in command or 'time' in command:
+        page = 'clock_10_none.html'
+    elif 'countdown' in command or 'countdowns' in command:
+        page = 'countdown_3_7200.html'
+    elif 'costco' in command:
+        page = 'Costco-(gocostco)_2_3600.html'
+    elif 'calendar' in command or 'events' in command:
+        page = 'gcal_3_86400.html'
+    elif 'countdown' in command or 'countdowns' in command:
+        page = 'countdown_3_7200.html'
+    elif 'grocery' in command or 'groceries' in command:
+        page = 'Grocery-(gogrocery)_2_3600.html'
+    elif 'hardware' in command:
+        page = 'Hardware-(gohardware)_2_3600.html'
+    elif 'garage' in command:
+        page = 'myq_4_300.html'
+    elif 'menu' in command:
+        page = 'Menu-(gomenu)_2_3600.html'
+    elif 'cron' in command or 'health' in command:
+        page = 'periodic-health_6_300.html'
+    elif 'photo' in command or 'picture' in command:
+        page = 'photo_23_3600.html'
+    elif 'quote' in command or 'quotation' in command or 'quotes' in command:
+        page = 'quotes_4_10800.html'
+    elif 'stevens' in command:
+        page = 'stevens-conditions_1_86400.html'
+    elif 'stock' in command or 'stocks' in command:
+        page = 'stock_3_86400.html'
+    elif 'twitter' in command:
+        page = 'twitter_10_3600.html'
+    elif 'traffic' in command:
+        page = 'wsdot-bridges_3_none.html'
+    elif 'front' in command and 'door' in command:
+        page = 'hidden/frontdoor.html'
+    elif 'driveway' in command:
+        page = 'hidden/driveway.html'
+    elif 'backyard' in command:
+        page = 'hidden/backyard.html'
+    else:
+        page = guess_page(command, page_chooser)
+    assert page is not None
+    return page
+
+
+def thread_change_current(command_queue: Queue) -> None:
+    page_history = [ "", "" ]
+    swap_page_target = 0.0
+
+    def filter_news_during_dinnertime(page: str) -> bool:
+        now = datetime.now()
+        is_dinnertime = now.hour >= 17 and now.hour <= 20
+        return not is_dinnertime or not (
+            "cnn" in page
+            or "news" in page
+            or "mynorthwest" in page
+            or "seattle" in page
+            or "stranger" in page
+            or "twitter" in page
+            or "wsj" in page
+        )
     page_chooser = chooser.weighted_random_chooser_with_triggers(
         trigger_catalog.get_triggers(), [filter_news_during_dinnertime]
     )
-    swap_page_target = 0.0
-    last_page = ""
+
     while True:
         now = time.time()
-        (page, triggered) = page_chooser.choose_next_page()
+
+        # Check for a verbal command.
+        command = None
+        try:
+            command = command_queue.get(block=False)
+        except Exception:
+            command = None
+            pass
+        if command is not None:
+            triggered = True
+            page = process_command(command, page_history)
+
+        # Else pick a page randomly.
+        else:
+            while True:
+                (page, triggered) = page_chooser.choose_next_page()
+                if triggered or page != page_history[0]:
+                    break
 
         if triggered:
             print("chooser[%s] - WE ARE TRIGGERED." % utils.timestamp())
-            if page != last_page:
+            if page != page_history[0] or (swap_page_target - now < 10.0):
                 print(
                     "chooser[%s] - EMERGENCY PAGE %s LOAD NEEDED"
                     % (utils.timestamp(), page)
                 )
                 try:
-                    f = open(os.path.join(constants.pages_dir, "current.shtml"), "w")
-                    emit_wrapped(f, page)
-                    f.close()
+                    with open(os.path.join(constants.pages_dir, "current.shtml"), "w") as f:
+                        emit_wrapped(f, page, override_refresh_sec = 40, command = command)
+                    page_history.insert(0, page)
+                    page_history = page_history[0:10]
+                    swap_page_target = now + 40
                 except:
                     print("chooser[%s] - page does not exist?!" % (utils.timestamp()))
                     continue
-                last_page = page
-                swap_page_target = now + constants.refresh_period_sec
 
                 # Also notify XMLHTTP clients that they need to refresh now.
                 path = os.path.join(constants.pages_dir, "reload_immediately.html")
-                f = open(path, "w")
-                f.write("Reload, suckers!")
-                f.close()
+                with open(path, "w") as f:
+                    f.write("Reload, suckers!")
 
                 # Fix this hack... maybe read the webserver logs and see if it
                 # actually was picked up?
-                time.sleep(0.750)
+                time.sleep(0.75)
                 os.remove(path)
 
         elif now >= swap_page_target:
-            if page == last_page:
-                print(
-                    (
-                        "chooser[%s] - nominal choice got the same page..."
-                        % (utils.timestamp())
-                    )
-                )
-                continue
+            assert page != page_history[0]
             print("chooser[%s] - nominal choice of %s" % (utils.timestamp(), page))
             try:
-                f = open(os.path.join(constants.pages_dir, "current.shtml"), "w")
-                emit_wrapped(f, page)
-                f.close()
+                with open(os.path.join(constants.pages_dir, "current.shtml"), "w") as f:
+                    emit_wrapped(f, page)
+                page_history.insert(0, page)
+                page_history = page_history[0:10]
+                swap_page_target = now + constants.refresh_period_sec
             except:
                 print("chooser[%s] - page does not exist?!" % (utils.timestamp()))
                 continue
-            last_page = page
-            swap_page_target = now + constants.refresh_period_sec
         time.sleep(1)
 
 
-def emit_wrapped(f, filename) -> None:
+def emit_wrapped(f,
+                 filename: str,
+                 *,
+                 override_refresh_sec: int = None,
+                 command: str = None) -> None:
     def pick_background_color() -> str:
+        city = astral.LocationInfo(
+            "Bellevue", "USA", "US/Pacific", 47.610, -122.201
+        )
+        s = sun(city.observer, date=self.dt, tzinfo=pytz.timezone("US/Pacific"))
+        sunrise_mod = utils.minute_number(s["sunrise"].hour, s["sunrise"].minute)
+        sunset_mod = utils.minute_number(s["sunset"].hour, s["sunset"].minute)
         now = datetime.now()
-        if now.hour <= 6 or now.hour >= 21:
+        now_mod = utils.minute_number(now.hour, now.minute)
+        if now_mod < sunrise_mod or now_mod > (sunset_mod + 45):
             return "E6B8B8"
-        elif now.hour == 7 or now.hour == 20:
+        elif now_mod < (sunrise_mod + 45) or now_mod > (sunset_mod + 120):
             return "EECDCD"
         else:
             return "FFFFFF"
 
+    def get_refresh_period() -> float:
+        if override_refresh_sec is not None:
+            return float(override_refresh_sec * 1000.0)
+        now = datetime.now()
+        if now.hour < 7:
+            return float(constants.refresh_period_night_sec * 1000.0)
+        else:
+            return float(constants.refresh_period_sec * 1000.0)
+
     age = utils.describe_age_of_file_briefly(f"pages/{filename}")
     bgcolor = pick_background_color()
+    if command is None:
+        pageid = filename
+    else:
+        pageid = f'"{command}" -> {filename}'
+
     f.write(
         """
 <HEAD>
@@ -292,11 +478,11 @@ def emit_wrapped(f, filename) -> None:
 </BODY>"""
         % (
             bgcolor,
-            constants.refresh_period_sec * 1000,
+            get_refresh_period(),
             constants.hostname,
             bgcolor,
             filename,
-            filename,
+            pageid,
             age,
         )
     )
@@ -327,14 +513,27 @@ def thread_invoke_renderers() -> None:
 
 if __name__ == "__main__":
     logging.basicConfig()
+    command_queue: Queue = Queue()
     changer_thread: Optional[Thread] = None
     renderer_thread: Optional[Thread] = None
+    janitor_thread: Optional[Thread] = None
+    hotword_thread: Optional[Thread] = None
     while True:
+        if hotword_thread is None or not hotword_thread.is_alive():
+            keyword_paths = [pvporcupine.KEYWORD_PATHS[x] for x in ["bumblebee"]]
+            sensitivities = [0.7] * len(keyword_paths)
+            listener = listen.HotwordListener(
+                command_queue,
+                keyword_paths,
+                sensitivities,
+            )
+            hotword_thread = Thread(target=listener.listen_forever, args=())
+            hotword_thread.start()
         if changer_thread is None or not changer_thread.is_alive():
             print(
                 f"MAIN[{utils.timestamp()}] - (Re?)initializing chooser thread... (wtf?!)"
             )
-            changer_thread = Thread(target=thread_change_current, args=())
+            changer_thread = Thread(target=thread_change_current, args=(command_queue,))
             changer_thread.start()
         if renderer_thread is None or not renderer_thread.is_alive():
             print(
@@ -342,4 +541,10 @@ if __name__ == "__main__":
             )
             renderer_thread = Thread(target=thread_invoke_renderers, args=())
             renderer_thread.start()
+        if janitor_thread is None or not janitor_thread.is_alive():
+            print(
+                f"MAIN[{utils.timestamp()}] - (Re?)initializing janitor thread... (wtf?!)"
+            )
+            janitor_thread = Thread(target=thread_janitor, args=())
+            janitor_thread.start()
         time.sleep(60)