diff --git a/heatmap.py b/heatmap.py
new file mode 100644
index 0000000..3a30919
--- /dev/null
+++ b/heatmap.py
@@ -0,0 +1,75 @@
+from pydoc import cli
+import numpy as np
+import matplotlib.pyplot as plt
+import july
+import logging
+from mastodon import Mastodon
+import pytz
+import time
+import os
+
+# logging.basicConfig(filename='/home/captain/dev/log/heatmap.log', level=logging.INFO)
+# logger = logging.getLogger('/home/captain/dev/log/heatmap.log')
+banner_id = 108361439460735817
+
+client = Mastodon(
+  access_token = 'Ug_bUMWCk3RLamOnqYIytmeB0nO6aNfjdmf06mAj2bE',
+  api_base_url = 'https://nofan.xyz'
+)
+
+fn = './heatmap.txt'
+# read from file if exists
+date = []
+data = []
+if os.path.exists(fn):
+  with open(fn) as f:
+    data_list = f.read().splitlines()
+    f.close()
+  for data_ in data_list:
+    date_, count = data_.split(' ')
+    date.append(date_)
+    data.append(int(count))
+
+else:
+  # init
+  me = client.me()
+  tl = client.account_statuses(me.id)
+  zh = pytz.timezone('Asia/Shanghai')
+
+  while tl:
+    print(tl[0].created_at)
+    for status in tl:
+      date_ = status.created_at.astimezone(zh).date().strftime('%Y-%m-%d')
+      if date_ not in date:
+        date.append(date_)
+        data.append(0)
+      data[date.index(date_)] += 1
+    time.sleep(1)
+    tl = client.fetch_next(tl)
+
+  # write to file
+  with open(fn, 'w') as f:
+    for i in range(len(date)):
+      f.write(date[i] + ' ' + str(data[i]) + '\n')
+    f.close()
+
+cleaned_date, cleaned_data = july.utils.preprocess_inputs(date, data)
+july.heatmap(cleaned_date, cleaned_data, title='', cmap="BuGn")
+
+img_path = './heatmap.png'
+plt.savefig(img_path)
+
+# upload image to mastodon
+media = client.media_post(img_path)
+
+headers = {}
+headers['Authorization'] = 'Bearer ' + client.access_token
+params = {
+  'status': '今天浑浑噩噩了吗',
+  'media_ids': [media.id]
+}
+kwargs = dict(headers=headers, files={}, timeout=client.request_timeout, json=params)
+url = client.api_base_url + '/api/v1/statuses/%s/' % banner_id
+resp = client.session.request('PUT', url, **kwargs)
+if resp.status_code == 200:
+  client.session.request('GET', 'https://up.tunpok.com/api/push/qku6CYquGu?msg=OK&ping=')