from flask import Flask, render_template, request
import spacy

# load NLP model
nlp = spacy.load("en_core_web_sm")

# initialize Flask app
app = Flask(__name__)

# define route for symptom checker form
@app.route('/symptom_checker', methods=['GET', 'POST'])
def symptom_checker():
   if request.method == 'POST':
       # process symptom description using NLP
       symptom_desc = request.form['symptom_desc']
       doc = nlp(symptom_desc)
       symptoms = [token.text for token in doc if token.pos_ == 'NOUN' or token.pos_ == 'ADJ']

       # TODO: query TCM database to get diagnosis and treatment

       # render result template with diagnosis and treatment
       return render_template('result.html', diagnosis=diagnosis, treatment=treatment)
   else:
       # render symptom checker form
       return render_template('symptom_checker.html')