From 6fa42c9a0afeb11d63b1cb90f7acd100213e996a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20J=C4=99dyk?= <lukasz.jedyk@gmail.com>
Date: Thu, 9 Jun 2022 21:50:23 +0200
Subject: [PATCH] generate content endpoint

---
 ayct_backend/campaign/__init__.py | 42 +++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/ayct_backend/campaign/__init__.py b/ayct_backend/campaign/__init__.py
index 4c0e18b..053826e 100644
--- a/ayct_backend/campaign/__init__.py
+++ b/ayct_backend/campaign/__init__.py
@@ -3,6 +3,7 @@ import json
 from uuid import uuid4
 from requests_oauthlib import OAuth1Session
 from flask import Blueprint, current_app, request, jsonify
+from nltk import sent_tokenize
 from ayct_backend.models import *
 from ayct_backend.firebase import verify_token
 
@@ -162,3 +163,44 @@ def get_twitter_campaign_details(campaign_id):
         "twitter_account_id": twitter_campaign.twitter_account_id,
         "posts": posts
     }), 200
+
+@campaign.route('/generate', methods=['POST'])
+def generate_content():
+    decoded_token = verify_token(request.headers)
+    if not decoded_token:
+        return "Not authorised!", 401
+
+    content_type = request.headers.get('Content-Type')
+    if content_type != 'application/json':
+        return "Content-type not supported!", 400
+
+    request_json = request.json
+    if 'user_input' not in request_json:
+        return "Invalid request!", 400
+
+    core_url = 'http://s415366.projektstudencki.pl/generate'
+    payload = {
+        "data": request_json['user_input'], 
+        "length": 420
+    }
+
+    try:
+        response = requests.post(core_url, headers={"Content-Type":"application/json"}, data=json.dumps(payload))
+    except:
+        return 'Failed to generate content!', 400
+
+    generated_content = response.content.decode("utf-8").replace('<|endoftext|>', '').replace('  ', ' ')
+    content_sentences = sent_tokenize(generated_content)
+    trimmed_content = ''
+
+    for sentence in content_sentences:
+        if len(trimmed_content) + len(sentence) < 270:
+            trimmed_content += ' '
+            trimmed_content += sentence
+
+    if len(trimmed_content) < 1:
+        trimmed_content = generated_content[:270]
+    
+    return jsonify({
+        "content": trimmed_content
+    }), 200