Added Telegram To Do Bot

Update README.md

README.md

@@ -54,6 +54,7 @@ So far, the following projects have been integrated to this repo:
 |[Squid installer for Ubuntu](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Squid-Proxy-Installer-for-Ubuntu16)|[Berkay Demir]()|
 |[Subtitle downloader](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Subtitle-downloader)|[Kaushlendra Pratap](https://github.com/kaushl1998)|
 |[Take Screenshot](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Take_screenshot)|[Moad Mohammed Elhebri](https://github.com/moadmmh)|
+|[To Do Bot](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/To-Do-Bot) | [Darshan Patel](https://github.com/DarshanPatel11)|
 |[Vinegère Cipher](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/vigenere_cipher)|[victoni](https://github.com/victoni)|
 |[Web proxy](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Proxy-Request)|[Nikhil Kumar Singh](https://github.com/nikhilkumarsingh)|
 |[Website blocker](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/Website-Blocker)|[Ayush Bhardwaj](https://github.com/hastagAB)|

To Do Bot/Procfile

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+worker: python bot.py

To Do Bot/README.md

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+# ToDoBot
+Telegram Bot for ToDo list to add, delete, see and check remaining date for particular task.
+
+## Usage
+* create a bot on telegram app using bot-father.
+* Add an unique TOKEN generated by bot-father to bot.py
+* run the bot using `python bot.py`
+* send /help to bot to know the detailed functionality.

To Do Bot/bot.py

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+import json
+import requests
+import time
+import urllib
+from dbhelper import DBHelper
+import datetime
+import os
+
+db = DBHelper()
+
+TOKEN = os.environ['TOKEN']
+URL = "https://api.telegram.org/bot{}/".format(TOKEN)
+
+
+def get_url(url):
+    response = requests.get(url)
+    content = response.content.decode("utf8")
+    return content
+
+
+def get_json_from_url(url):
+    content = get_url(url)
+    js = json.loads(content)
+    return js
+
+
+def get_updates(offset=None):
+    url = URL + "getUpdates"
+    if offset:
+        url += "?offset={}".format(offset)
+    js = get_json_from_url(url)
+    return js
+
+
+def get_last_update_id(updates):
+    update_ids = []
+    for update in updates["result"]:
+        update_ids.append(int(update["update_id"]))
+    return max(update_ids)
+
+
+def handle_updates(updates):
+    text = ""
+    for update in updates["result"]:
+        try:
+            text = update["message"]["text"]
+        except Exception as e:
+            pass
+        chat = update["message"]["chat"]["id"]
+        if text.startswith("/delete"):
+            t = text.split(" ")
+            if len(t) < 2:
+                send_message("Delete Item Properly.", chat)
+            else:
+                items = db.get_items(chat)
+                if items == []:
+                    send_message("Nothing to Delete.", chat)
+                elif t[1] in items[0]:
+                    db.delete_item(t[1], chat)
+                    send_message("Item " + t[1] + " Deleted Successfully.", chat)
+                else:
+                    send_message("Item Not Found.", chat)
+        elif text == "/start":
+            send_message("Send /help to show help.", chat)
+        elif text == "/help":
+            message = "Send /add item_name due_date(dd-mm-yyyy) to add an item.\nSend /show to display items in to-do list.\nSend /due to check remaining days of each item.\nSend /delele to delete item."
+            send_message(message, chat)
+        elif text == "/show":
+            items = db.get_items(chat)
+            if items == []:
+                send_message("Nothing to show.", chat)
+            for i in range(len(items)):
+                message = items[i][0] + " " + items[i][1]
+                send_message(message, chat)
+        elif text == "/due":
+            items = db.get_items(chat)
+            due = [0 for _ in range(0, len(items))]
+            if items == []:
+                send_message("Nothing to show.", chat)
+            today = datetime.datetime.today().strftime("%d-%m-%Y")
+            for i in range(0, len(items)):
+                due[i] = (datetime.datetime.strptime(items[i][1], "%d-%m-%Y") -
+                          datetime.datetime.strptime(today, "%d-%m-%Y")).days
+                message = items[i][0] + " " + str(due[i]) + " days Remaining"
+                send_message(message, chat)
+        elif text.startswith("/add"):
+            t = text.split(" ")
+            if len(t) < 3:
+                send_message("Insert Item Properly.\nSend /add item_name due_date to add an item.", chat)
+            elif len(t[1]) < 1 or len(t[2]) < 1:
+                send_message("Insert Item Properly.\nSend /add item_name due_date to add an item.", chat)
+            else:
+                db.add_item(t[1], t[2], chat)
+                send_message("Item " + t[1] + " Inserted Successfully.", chat)
+        else:
+            send_message("Not a valid Input.", chat)
+
+
+def get_last_chat_id_and_text(updates):
+    num_updates = len(updates["result"])
+    last_update = num_updates - 1
+    text = updates["result"][last_update]["message"]["text"]
+    chat_id = updates["result"][last_update]["message"]["chat"]["id"]
+    return text, chat_id
+
+
+def send_message(text, chat_id, reply_markup=None):
+    text = urllib.parse.quote_plus(text)
+    url = URL + "sendMessage?text={}&chat_id={}&parse_mode=Markdown".format(text, chat_id)
+    if reply_markup:
+        url += "&reply_markup={}".format(reply_markup)
+    get_url(url)
+
+
+def main():
+    db.setup()
+    last_update_id = None
+    while True:
+        updates = get_updates(last_update_id)
+        if len(updates["result"]) > 0:
+            last_update_id = get_last_update_id(updates) + 1
+            handle_updates(updates)
+        time.sleep(0.5)
+
+
+if __name__ == '__main__':
+    main()
+

To Do Bot/dbhelper.py

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+import sqlite3
+
+
+class DBHelper:
+
+    def __init__(self, dbname="todo.sqlite"):
+        self.dbname = dbname
+        self.conn = sqlite3.connect(dbname)
+
+    def setup(self):
+        tblstmt = "CREATE TABLE IF NOT EXISTS items (description text, due_date date ,owner text)"
+        itemidx = "CREATE INDEX IF NOT EXISTS itemIndex ON items (description ASC)"
+        ownidx = "CREATE INDEX IF NOT EXISTS ownIndex ON items (owner ASC)"
+        self.conn.execute(tblstmt)
+        self.conn.execute(itemidx)
+        self.conn.execute(ownidx)
+        self.conn.commit()
+
+    def add_item(self, item_text, due_date, owner):
+        stmt = "INSERT INTO items (description, due_date ,owner) VALUES (?, ? ,?)"
+        args = (item_text, due_date ,owner)
+        self.conn.execute(stmt, args)
+        self.conn.commit()
+
+    def delete_item(self, item_text, owner):
+        stmt = "DELETE FROM items WHERE description = (?) AND owner = (?)"
+        args = (item_text, owner )
+        self.conn.execute(stmt, args)
+        self.conn.commit()
+
+    def get_items(self, owner):
+        stmt = "SELECT description,due_date FROM items WHERE owner = (?)"
+        args = (owner, )
+        return [x for x in self.conn.execute(stmt, args)]
+

To Do Bot/requirements.txt

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+python-dateutil==2.6.0
+requests
+telepot==10.5
+urllib3
+virtualenv==15.1.0

To Do Bot/runtime.txt

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+python-3.6.1