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app.py
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app.py
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from flask import Flask, render_template,request,redirect,url_for,session
from flask_mysqldb import MySQL
from messageService import send_sms
import os
import re
app = Flask(__name__)
db_name = os.environ.get("DB_NAME")
db_password = os.environ.get("DB_PASSWORD")
email = os.environ.get("ADMIN_MAIL_ID")
password = os.environ.get("ADMIN_MAIL_PASSWORD")
app.config['MYSQL_HOST'] = "remotemysql.com"
app.config['MYSQL_USER'] = db_name
app.config['MYSQL_PASSWORD'] = db_password
app.config['MYSQL_DB'] = db_name
app.config['MAIL_SERVER'] = 'smtp.gmail.com'
app.config['MAIL_PORT'] = 465
app.config['MAIL_USERNAME'] = email
app.config['MAIL_PASSWORD'] = password
app.config['MAIL_USE_SSL'] = True
app.config['MAIL_USE_TLS'] = False
mysql = MySQL(app)
app.secret_key = 'ecashier'
@app.route('/')
def home():
if 'loggedin' in session:
if session['is_retailer'] == 0:
cursor = mysql.connection.cursor()
cursor.execute("SELECT purchase_id,user_id,item_name, price, amount_paid, purchase_date FROM Purchases WHERE user_id = % s",[session['user_id']])
purchase_details = cursor.fetchall()
cursor.execute("SELECT COUNT(*) FROM Purchases WHERE user_id = %s",[session['user_id']])
purchase_count = cursor.fetchone()[0]
cursor.execute("SELECT COUNT(*) FROM Payments WHERE purchase_id IN (SELECT purchase_id FROM Purchases WHERE user_id = % s)",[session['user_id']])
payment_count = cursor.fetchone()[0]
cursor.execute("SELECT COUNT(*) FROM Purchases WHERE amount_paid<price AND user_id = % s",[session['user_id']])
pending_count = cursor.fetchone()[0]
else:
cursor = mysql.connection.cursor()
cursor.execute("SELECT purchase_id,user_id,item_name, price, amount_paid, purchase_date FROM Purchases")
purchase_details = cursor.fetchall()
cursor.execute("SELECT COUNT(*) FROM Purchases")
purchase_count = cursor.fetchone()[0]
cursor.execute("SELECT COUNT(*) FROM Payments")
payment_count = cursor.fetchone()[0]
cursor.execute("SELECT COUNT(*) FROM Purchases WHERE amount_paid<price")
pending_count = cursor.fetchone()[0]
return render_template('home.html',purchase_details=purchase_details,username=session['username'],role=session['is_retailer'],purchase_count=purchase_count,payment_count=payment_count,pending_count=pending_count)
else:
return redirect(url_for('intro'))
@app.route('/register', methods=['POST','GET'])
def register():
success_message = None
failed_message = None
if 'loggedin' in session:
return redirect(url_for('home'))
if request.method == 'POST':
username = request.form['username']
email = request.form['email']
pnumber = request.form['pnumber']
password1 = request.form['password1']
password2 = request.form['password2']
userWallet = request.form['walletAmount']
if len(pnumber) == 10:
if password1 == password2:
if int(userWallet) >= 10000:
cursor = mysql.connection.cursor()
cursor.execute('SELECT * FROM Users WHERE email = % s', [email])
account = cursor.fetchone()
if account:
failed_message="Account already exists...Try with different email address"
elif not re.match(r'[A-Za-z0-9]+', username):
failed_message = 'Username must contain only characters and numbers.'
else:
cursor = mysql.connection.cursor()
cursor.execute('INSERT INTO Users(userid,username,email,phonenumber,password,wallet) VALUES(UUID(),% s,% s,% s,% s,% s)',(username,email,pnumber,password1,userWallet))
mysql.connection.commit()
cursor.execute('SELECT userid FROM Users WHERE username=%s', [username])
user_id = cursor.fetchone()
msg = f'''E-Cashier! Hello {username}, Verify your mobile number by clicking on the link below https://e-cashier.herokuapp.com/verify/{user_id[0]}'''
print(msg)
send_sms(pnumber,msg)
success_message = "A verification link has been sent to Your Phone Number."
else:
failed_message = "Wallet Amount Should be Minimum of 10000 Rupees."
else:
failed_message = "Passwords Do Not Match!"
else:
failed_message = "Your mobile number should contain 10 digits!"
return render_template('register.html',failed_message=failed_message,success_message=success_message)
@app.route('/login',methods=['POST','GET'])
def login():
message=None
if 'loggedin' in session:
return redirect(url_for('home'))
if request.method =='POST':
email = request.form['email']
password = request.form['password']
cursor = mysql.connection.cursor()
cursor.execute('SELECT * FROM Users WHERE email = % s',[email])
user = cursor.fetchone()
if user and (user[4] == password):
if user[7] == 1:
session['user_id'] = user[0]
session['username'] = user[1]
session['is_retailer'] = user[5]
session['email'] = user[2]
session['loggedin'] = True
return redirect(url_for('home'))
else:
cursor = mysql.connection.cursor()
cursor.execute('SELECT * FROM Users WHERE email=%s', [email])
user = cursor.fetchone()
msg = f'''E-Cashier! Hello {user[1]}, Verify your mobile number by clicking on the link below https://e-cashier.herokuapp.com/verify/{user[0]}'''
send_sms(user[3],msg)
return render_template('verification.html')
else:
message="Log in Unsuccessful. Please check username and password"
return render_template("login.html",message=message)
@app.route('/logout',methods=['POST','GET'])
def logout():
session.pop('loggedin', None)
session.pop('user_id',None)
session.pop('username',None)
session.pop('is_retailer',None)
session.pop('email',None)
return redirect(url_for('intro'))
@app.route('/addpurchase',methods=['POST','GET'])
def addpurchase():
message = None
if 'loggedin' in session:
if session['is_retailer'] == 1:
if request.method == 'POST':
customer = request.form['customer']
item = request.form['item']
price = request.form['price']
purchase_date = request.form['purchase_date']
amount_paid = request.form['amount_paid']
if int(amount_paid) > int(price):
message = "Amount paid should be less than or equal to the actual price."
else:
pending_amount = int(price) - int(amount_paid)
cursor = mysql.connection.cursor()
cursor.execute("INSERT INTO Purchases (user_id,item_name,price,purchase_date,amount_paid) VALUES(% s,% s,% s,% s, % s)",[customer,item,price,purchase_date,amount_paid])
mysql.connection.commit()
if pending_amount!=0:
cursor.execute("SELECT phonenumber, username FROM Users WHERE userid = %s",[customer])
user_details = cursor.fetchone()
recipient = user_details[0]
username = user_details[1]
msg= f'''Pending Payment Alert! Hey {username}, we hope you are doing well. Pending Payment Details :Item :{item}, Price: {price}, Purchases Date: {purchase_date}, Amount Paid: {amount_paid}, Pending Amount: {pending_amount}'''
send_sms(recipient,msg)
message = "Purchase added successfully!"
cursor = mysql.connection.cursor()
cursor.execute("SELECT * FROM Users WHERE is_admin = 0")
customers = cursor.fetchall()
return render_template('addpurchase.html',customers = customers, message=message)
return redirect(url_for('home'))
else:
return redirect(url_for('intro'))
@app.route('/updatepurchase/<int:id>',methods=['POST', 'GET'])
def updatepurchase(id):
message = None
if 'loggedin' in session:
if session['is_retailer'] == 1:
if request.method == 'POST':
item = request.form['item']
price = request.form['price']
purchase_date = request.form['purchase_date']
amount_paid = request.form['amount_paid']
if int(amount_paid) > int(price):
message = "Amount paid should be less than or equal to the actual price."
else:
cursor = mysql.connection.cursor()
cursor.execute("UPDATE Purchases SET item_name = %s, price = %s, amount_paid = %s, purchase_date = %s WHERE purchase_id = %s ",[item,price,amount_paid,purchase_date,id])
mysql.connection.commit()
message = "Purchase Updated Successfully!"
cursor = mysql.connection.cursor()
cursor.execute("SELECT * FROM Purchases WHERE purchase_id = %s",[id])
purchase = cursor.fetchone()
return render_template('updatepurchase.html',purchase=purchase,message=message)
else:
return redirect(url_for('intro'))
@app.route('/deletepurchase/<int:id>',methods=['POST','GET'])
def deletepurchase(id):
if 'loggedin' in session:
if session['is_retailer']==1:
cursor = mysql.connection.cursor()
cursor.execute("DELETE FROM Purchases WHERE purchase_id = %s",[id])
cursor.execute("DELETE FROM Payments WHERE purchase_id = %s",[id])
mysql.connection.commit()
return redirect(url_for('home'))
else:
return redirect(url_for('intro'))
@app.route('/addpayment',methods=['POST','GET'])
def addpayment():
message = None
if 'loggedin' in session:
if session['is_retailer']==1:
if request.method == 'POST':
purchase_id = request.form['purchase_id']
amountpaid = request.form['amount_paid']
payment_date = request.form['payment_date']
cursor = mysql.connection.cursor()
cursor.execute("SELECT price, amount_paid FROM Purchases WHERE purchase_id = %s",[purchase_id])
amount_paid = cursor.fetchone()
if int(amountpaid) > int(amount_paid[0]-amount_paid[1]):
message = "Amount paid is more than the Actual Amount to be Paid."
else:
cursor.execute("INSERT INTO Payments(purchase_id, amount_paid, payment_date) VALUES(% s,% s,% s)",[purchase_id,amountpaid,payment_date])
cursor.execute("UPDATE Purchases SET amount_paid=amount_paid + % s WHERE purchase_id = % s",[amountpaid,purchase_id])
mysql.connection.commit()
cursor.execute("SELECT item_name, price, amount_paid, user_id, purchase_date FROM Purchases WHERE purchase_id = %s",[purchase_id])
details = cursor.fetchone()
item = details[0]
price = details[1]
tot_amount_paid = details[2]
userid = details[3]
purchase_date = details[4]
cursor.execute("SELECT phonenumber, username FROM Users WHERE userid = %s",[userid])
user = cursor.fetchone()
recipient = user[0]
username = user[1]
pending_amount = price-tot_amount_paid
message = "Payment added successfully!"
msg = f'''Payment Detail! Hey {username}, we hope you are doing well. Payment Details: Item : {item}, Amount Paid: {amountpaid}, Payment Date: {payment_date} / Pending Payment Details : Item : {item}, Price: {price}, Purchases Date: {purchase_date}, Amount Paid: {tot_amount_paid}, Pending Amount: {pending_amount}'''
send_sms(recipient,msg)
return render_template('addpayment.html',message=message)
else:
return redirect(url_for('intro'))
@app.route('/pendingpayments')
def pendingpayments():
if 'loggedin' in session:
if session['is_retailer'] == 0:
cursor = mysql.connection.cursor()
cursor.execute("SELECT purchase_id,user_id,item_name, price, amount_paid, purchase_date FROM Purchases WHERE amount_paid<price AND user_id = % s",[session['user_id']])
pending_payments = cursor.fetchall()
else:
cursor = mysql.connection.cursor()
cursor.execute("SELECT purchase_id,user_id,item_name, price, amount_paid, purchase_date FROM Purchases WHERE amount_paid<price")
pending_payments = cursor.fetchall()
return render_template('pending_payments.html',pending_payments=pending_payments,username=session['username'],role=session['is_retailer'])
else:
return redirect(url_for('intro'))
@app.route('/paymentdetails')
def paymentdetails():
if 'loggedin' in session:
if session['is_retailer'] == 0:
cursor = mysql.connection.cursor()
cursor.execute("SELECT * FROM Payments WHERE purchase_id IN (SELECT purchase_id FROM Purchases WHERE user_id = % s)",[session['user_id']])
payment_details = cursor.fetchall()
else:
cursor = mysql.connection.cursor()
cursor.execute("SELECT * FROM Payments")
payment_details = cursor.fetchall()
return render_template('paymentdetails.html',payments=payment_details,username=session['username'])
else:
return redirect(url_for('intro'))
@app.route('/contact')
def contact():
if 'loggedin' in session:
if session['is_retailer'] == 0:
return render_template('contact.html',username=session['username'])
return redirect(url_for('intro'))
@app.route('/pendingalert/<int:id>')
def pendingalert(id):
if 'loggedin' in session:
if session['is_retailer'] == 1:
cursor = mysql.connection.cursor()
cursor.execute("SELECT phonenumber, username FROM Users WHERE user_id = %s",[id])
details = cursor.fetchone()
recipient = details[0]
recipient_name = details[1]
cursor.execute("select item_name, price, purchase_date, amount_paid FROM Purchases WHERE user_id = %s",[id])
purchase = cursor.fetchone()
pending_amount = int(purchase[1]) - int(purchase[3])
msg = f'''Pending Payment Alert!!! Hey {recipient_name}, we hope you are doing well. The payment is still pending for the purchase item - {purchase[0]} made on {purchase[2]}. Pay the pending payment within two days without fail. Pending Payment Details :Item: {purchase[0]}, Price: {purchase[1]}, Purchases Date: {purchase[2]}, Amount Paid: {purchase[3]}, Pending Amount: {pending_amount}'''
send_sms(recipient,msg)
return redirect(url_for('pendingpayments'))
else:
redirect(url_for('intro'))
@app.route('/verify/<string:id>')
def verify(id):
cursor = mysql.connection.cursor()
cursor.execute("UPDATE Users SET is_verified = 1 WHERE userid = % s",[id])
mysql.connection.commit()
return redirect(url_for('login'))
@app.route('/intro')
def intro():
if 'loggedin' in session:
return redirect(url_for('home'))
return render_template('intro.html')
@app.route('/terms')
def terms():
return render_template('terms.html')
@app.errorhandler(404)
def page_not_found(e):
if 'loggedin' in session:
return redirect(url_for('home'))
return render_template('intro.html')
if __name__ == '__main__':
app.run(debug=True,port="8080")