Added a WooCommerce Coupon plugin

This plugin sets up a coupon on installation and sends this coupon to a
user that asks for it. The plugin supports an expiration period. After
this period, it will renew the coupon.

plugins/woocommerce_coupons/README.md

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+

plugins/woocommerce_coupons/config.json.template

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+{
+    "rest_api": {
+        "shop_url": "https://alcuinus.nl",
+        "consumer_key": "",
+        "consumer_secret": "",
+        "wp_api": true,
+        "version": "wc/v1"
+    },
+
+    "coupon": {
+        "max_days": 31,
+        "percentage":20
+    }
+}

plugins/woocommerce_coupons/messages/help

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+<h5><i>coupon</i></h5>
+Als je me een bericht stuurt met het keyword <i>coupon</i> zal ik je de coupon sturen die voor 20% korting op de <a href="https://alcuinus.nl/shop">Alcuinus webshop</a> zorgt.

plugins/woocommerce_coupons/messages/messages.dutch.json

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+{
+
+    "coupon_message" : "De huidige code om {}% korting te krijgen is: <i><strong>{}</strong></i>. Ga meteen naar <a href=\"https://alcuinus.nl/shop\">de webshop</a> om hem te gebruiken!"
+
+}

plugins/woocommerce_coupons/requirements.txt

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+WooCommerce

plugins/woocommerce_coupons/woocommerce_coupons.py

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+from matrix_bot_api.mregex_handler import MRegexHandler
+from woocommerce import API
+from base64 import b64encode
+import os
+import json
+import datetime as dt
+
+MESSAGE_DIR = os.path.join(os.path.dirname(__file__), 'messages')
+DATA_DIR = os.path.join(os.path.dirname(__file__),'../../data/woocommerce')
+CONFIG_LOCATION = os.path.join(os.path.dirname(__file__), 'config.json')
+
+DATA_LOCATION = DATA_DIR + '/id.json'
+HELP_LOCATION = MESSAGE_DIR + '/help'
+MESSAGES_LOCATION = MESSAGE_DIR + '/messages.dutch.json'
+
+class Plugin:
+    """ This is an example plugin with only a single callback. When
+    a user says "Hello bot" in a room in which te bot is present,
+    the user replies with "Hello <username>!".
+    """
+
+    def __init__(self, bot):
+        # Load the configuration
+        with open(CONFIG_LOCATION) as json_data:
+            self.config = json.load(json_data)
+
+        # Load ID of coupon
+        with open(DATA_LOCATION) as json_data:
+            self.coupon_id = json.load(json_data)
+
+        # Load all messages for this plugin
+        with open(MESSAGES_LOCATION) as json_data:
+            self.messages = json.load(json_data)
+
+        # Define sensitivity
+        self.handler = []
+
+        self.handler.append(MRegexHandler("Peter coupon", self.grab_coupon_callback))
+
+        # initialize WooCommerce connection
+        self.wcapi = API(
+            url=self.config['rest_api']['shop_url'],
+            consumer_key=self.config['rest_api']['consumer_key'],
+            consumer_secret=self.config['rest_api']['consumer_secret'],
+            wp_api=self.config['rest_api']['wp_api'],
+            version=self.config['rest_api']['version'],
+            query_string_auth=True
+        )
+
+        # Save parent bot
+        self.bot = bot
+
+    def grab_coupon_callback(self, room, event):
+        coupon_json = self.wcapi.get(f"coupons/{self.coupon_id}").json()
+
+        datetime_now = dt.datetime.now().strftime("%Y-%m-%dT%H:%M:%S")
+
+
+        if coupon_json['expiry_date'] < datetime_now:
+            # Refresh coupon
+
+            # Create random token and determine max validity
+            vld_days = self.config['coupon']['max_days']
+
+            token = b64encode(os.urandom(8)).decode('utf-8').lower()[0:-1]
+            expires_dat = (dt.datetime.now()
+                + dt.timedelta(days = vld_days)).strftime(
+                    "%Y-%m-%dT%H:%M:%S")
+
+            data = {
+                "code": token,
+                "amount": self.config['coupon']['percentage'],
+                "expiry_date": expires_dat,
+            }
+
+            self.wcapi.put(f"coupons/{self.coupon_id}", data)
+
+            room.send_html(self.messages['coupon_message'].format(
+                coupon_json["amount"].split('.')[0],
+                token))
+
+        else:
+            room.send_html(self.messages['coupon_message'].format(
+                coupon_json["amount"].split('.')[0],
+                coupon_json["code"]))
+
+    def help(self):
+        return open(HELP_LOCATION, mode="r").read()
+
+def setup():
+    """This function initializes a coupon with a given percentage"""
+
+    # Load the configuration
+    with open(CONFIG_LOCATION) as json_data:
+        config = json.load(json_data)
+
+    # Create random token and determine max validity
+    vld_days = config['coupon']['max_days']
+
+    token = b64encode(os.urandom(8)).decode('utf-8').lower()[0:-1]
+    expires_dat = (dt.datetime.now() + dt.timedelta(days = vld_days)).strftime(
+        "%Y-%m-%dT%H:%M:%S")
+
+    data = {
+        "code": token,
+        "discount_type": "percent",
+        "amount": config['coupon']['percentage'],
+        "individual_use": True,
+        "exclude_sale_items": True,
+        "expiry_date": expires_dat,
+    }
+
+    wcapi = API(
+        url=config['rest_api']['shop_url'],
+        consumer_key=config['rest_api']['consumer_key'],
+        consumer_secret=config['rest_api']['consumer_secret'],
+        wp_api=config['rest_api']['wp_api'],
+        version=config['rest_api']['version'],
+        query_string_auth=True
+    )
+
+    # Send to shop
+    ret = wcapi.post("coupons", data)
+
+    # Create data directory
+    os.mkdir(DATA_DIR)
+
+    # Write to JSON file to save ID
+    with open(DATA_LOCATION, 'w') as json_data:
+        json.dump(ret['id'], json_data)
+