Adding code for pi twitter notifier

Adding code for pi in stock notifier guide. sends a query to twitter to check if pi's are in stock at adafruit

Author: BlitzCityDIY

Pi_In_Stock_Notifier/code.py

@@ -0,0 +1,143 @@
+# SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import time
+import ssl
+import wifi
+import terminalio
+import socketpool
+import displayio
+import board
+from adafruit_display_text import bitmap_label,  wrap_text_to_lines
+import adafruit_requests
+from digitalio import DigitalInOut, Direction, Pull
+from adafruit_debouncer import Debouncer
+
+alarm_out = DigitalInOut(board.A1)
+alarm_out.direction = Direction.OUTPUT
+alarm_out.value = False
+
+button_in = DigitalInOut(board.BUTTON)  # on-board Boot button on Feather ESP32-S2 TFT
+button_in.pull = Pull.UP
+button = Debouncer(button_in)
+
+
+# Get wifi details and more from a secrets.py file
+try:
+    from secrets import secrets
+except ImportError:
+    print("WiFi secrets are kept in secrets.py, please add them there!")
+    raise
+
+print("Adafruit Raspberry Pi In Stock Tweet Listener")
+
+#  import your bearer token
+bear = secrets['bearer_token']
+
+#  query URL for tweets. looking for hashtag partyparrot sent to a specific username
+#  disabling line-too-long because queries for tweet_query & TIME_URL cannot have line breaks
+#  pylint: disable=line-too-long
+tweet_query = 'https://api.twitter.com/2/tweets/search/recent?query=In Stock at Adafruit from:rpilocator&tweet.fields=created_at'
+
+headers = {'Authorization': 'Bearer ' + bear}
+
+print("Connecting to %s"%secrets["ssid"])
+wifi.radio.connect(secrets["ssid"], secrets["password"])
+print("Connected to %s!"%secrets["ssid"])
+print("My IP address is", wifi.radio.ipv4_address)
+
+pool = socketpool.SocketPool(wifi.radio)
+requests = adafruit_requests.Session(pool, ssl.create_default_context())
+
+#  gets and formats time from adafruit.io
+aio_username = secrets["aio_username"]
+aio_key = secrets["aio_key"]
+location = secrets.get("timezone", None)
+TIME_URL = "https://io.adafruit.com/api/v2/%s/integrations/time/strftime?x-aio-key=%s" % (aio_username, aio_key)
+TIME_URL += "&fmt=%25Y-%25m-%25dT%25H%3A%25M%3A%25S.%25L%25j%25u%25z%25Z"
+
+display = board.DISPLAY
+
+group = displayio.Group()
+font = terminalio.FONT
+text = ''
+text_area = bitmap_label.Label(font, text=text, scale=2, color=0xFFFFFF)
+text_area.x = 0
+text_area.y = 15
+clock = ''
+clock_area = bitmap_label.Label(font, text=clock, color=0xFFFFFF)
+clock_area.x = 125
+clock_area.y = 128
+group.append(text_area)
+group.append(clock_area)
+display.show(group)
+
+last_value = 0 #  checks last tweet's ID
+check = 0 #  time.monotonic() holder
+
+#  fetching current time
+print("Fetching text from", TIME_URL)
+current_time = requests.get(TIME_URL)
+print("-" * 40)
+print(current_time.text)
+print("-" * 40)
+
+alarm_out.value = False  # this starts the alarm so you can test turning it off w the boot button
+
+
+while True:
+    button.update()
+    if button.fell:
+        print("Alarm off")
+        alarm_out.value = False
+
+    #  every 30 seconds...
+    if (check + 30) < time.monotonic():
+        #  updates current time
+        current_time = requests.get(TIME_URL)
+        print(current_time.text)
+        #  get tweets from rpilocator containing in stock at adafruit
+        the_tweet = requests.request("GET", url=tweet_query, headers=headers)
+        #  gets data portion of json
+        data = the_tweet.json()['data']
+        #  tweet ID number
+        value = data[0]['id']
+        #  tweet text
+        stock_check = data[0]['text']
+        #  timestamp
+        timestamp = data[0]['created_at']
+        #  reset time count
+        check = time.monotonic()
+        #  compare last tweet ID and current tweet ID
+        if last_value != value:
+            #  compares date of tweet timestamp with current date
+            if timestamp.startswith(current_time.text[0 : 10]):
+                print("match")
+                #  grabs the hour of the tweet timestamp
+                tweet_hour = int(timestamp[11:12])
+                print(tweet_hour)
+                #  grabs the current hour
+                current_hour = int(current_time.text[11:12])
+                print(current_hour)
+                #  if it's been less than an hour since the tweet...
+                if abs(current_hour - tweet_hour) < 2:
+                    print("in the last hour")
+                    #  displays tweet text and time on screen
+                    text_area.text = "\n".join(wrap_text_to_lines(stock_check, 21))
+                    print(stock_check)
+                    clock_area.text = timestamp
+                    print("Raspberry Pi in stock at Adafruit!")
+                    alarm_out.value = True
+
+                else:
+                    pass
+            #  if the tweet wasn't today
+            else:
+                #  if it's not new, then the wait continues
+                no_tweet_text = ("No stock in last hour :( Last stock: %s" % (timestamp))
+                text_area.text = "\n".join(wrap_text_to_lines(no_tweet_text, 21))
+                print("no new in stock notifications :(")
+
+            #  updates tweet ID
+            last_value = value