increase allowed range for prediction

.gitignore

@@ -0,0 +1,3 @@
+__pycacahe__/*
+freeriders/__pycacahe__/*
+instance/

README.md

@@ -1,3 +1,10 @@
 # freeriders
 
 Web app for tracking current ticket numbers
+
+# Architecture
+
+- keep all ticket numbers and timestamps in SQL table "tickets"
+- display last ticket number
+- don't allow tickets that are out of probable ticket number range
+- if last submited ticket is timestamped more then 90 minutes ago, try to predict the next number

build-deb/freeriders/DEBIAN/control

@@ -4,7 +4,7 @@ Priority: optional
 Architecture: all
 Essential: no
 Installed-Size: 2000
-Depends: python3-flask, gunicorn
+Depends: gunicorn, python3-flask-sqlalchemy
 Homepage: https://gitea.dmz.rs/Decentrala/freeriders
 Maintainer: Decentrala <dmz@dmz.rs>
 Description: Web app that tracks bus transport ticket numbers

freeriders/__init__.py

@@ -1,5 +1,16 @@
 from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
+import os # if you wanna have db credenitalas in os.environ
 
 app = Flask(__name__)
 
+# SQLAlchemy setup
+app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///freeriders.db'
+
+#MySql setup
+#app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://user:pass@localhost/dbname'
+
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+db = SQLAlchemy(app)
+
 from freeriders import routes

freeriders/functions.py

@@ -0,0 +1,21 @@
+import time
+import datetime
+
+def datetounix(day, month, year, hour, minute, second):
+    seconds = datetime.datetime(year, month, day, hour, minute, second).timestamp()
+    return int(seconds)
+
+def formatprefix2(number):
+    return "{:02d}".format(number)
+
+def formatprefix10(number):
+    return "{:010d}".format(number)
+
+def predict(timestamp):
+        base_ticket = 7157662
+        base_timestamp = 1695887564
+        step = 0.688
+
+        ticket = base_ticket + (timestamp - base_timestamp) * step
+        return int(ticket)
+

freeriders/models.py

@@ -0,0 +1,6 @@
+from freeriders import db
+
+class Tickets(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    ticket = db.Column(db.Integer, nullable=False)
+    timestamp = db.Column(db.Integer, nullable=False)

freeriders/routes.py

@@ -1,10 +1,58 @@
 from flask import render_template, request, redirect
-from freeriders import app
+from freeriders import app, db
+from freeriders.functions import formatprefix2,formatprefix10, predict
+from freeriders.models import Tickets
+from datetime import datetime
+import time
 
-@app.route('/', methods=['POST', 'GET'])
+@app.route('/sms', methods=['GET'])
-def changepassword():
+def sms():
     if request.method == 'GET':
-        return render_template('index.html')
+        timenow = int(time.time())
-    elif request.method == 'POST':
+
+        try:
+            lastticket = Tickets.query.order_by(Tickets.timestamp.desc()).first()
+
+            if lastticket.timestamp < timenow - (90 * 60):
+                lastticket = formatprefix10(predict(timenow))
+            else:
+                lastticket = formatprefix10(lastticket.ticket)
+            date = datetime.now()
+            datenow = f'{formatprefix2(date.day)}.{formatprefix2(date.month)}.{date.year}'
+            timenow = f'{formatprefix2(date.hour)}:{formatprefix2(date.minute)}:{formatprefix2(date.second)}'
+            return render_template('sms.html', ticket = lastticket, date = datenow, time = timenow)
+        except:
+            return 'Error retriving last ticket'
+    else:
+        return 'HTTP request method not recogniezed'
+
+@app.route('/submit', methods=['POST', 'GET'])
+def submit():
+    PREDICTTIMERANGE = 60 * 60 * 24
+    if request.method == 'GET':
+        return render_template('submit.html')
+    elif request.method == 'POST':
+        timenow = int(time.time())
+        ticket_input = request.form['ticket']
+
+        if ticket_input.isdigit() and len(ticket_input) == 10 :
+            if int(ticket_input) < predict(timenow + PREDICTTIMERANGE ) and int(ticket_input) > predict(timenow - PREDICTTIMERANGE ) :
+                ticket = Tickets(ticket = int(ticket_input), timestamp = timenow)
+            else:
+                print(int(ticket_input))
+                print(predict(timenow - PREDICTTIMERANGE))
+                print(predict(timenow + PREDICTTIMERANGE))
+                print(predict(timenow))
+                return 'Ticket number is in unexpected range.'
+        else:
+            return 'Ticket format is wrong. Only 10 digits allowed.'
+
+        try:
+            db.session.add(ticket)
+            db.session.commit()
+            return 'Ticket added'
+        except:
+            return 'Adding ticket failed'
+
     else:
         return 'HTTP request method not recogniezed'

freeriders/static/style.css

@@ -1,9 +1,9 @@
 :root {
   --border-radus: 1rem;
-  --background: #EEE;
+  --background: #F9F9F9;
-  --header-background: #DDD;
+  --header-background: #EEE;
   --header-height: 3rem;
-  --input-bar-height: 2rem;
+  --input-bar-height: 3rem;
 }
 
 body{
@@ -14,14 +14,13 @@ body{
 }
 
 main {
-	max-width: 400px;
 	display: flex;
 	flex-direction: column;
 	align-self: flex-start;
 	gap: 1rem;
 	margin: 0 auto;
-	padding: 1rem 0.5rem;
+	padding: 2rem 0.5rem;
-	height: calc(100vh - 5rem);
+	height: calc(100vh - var(--header-height) - var(--input-bar-height));
 	overflow-y: scroll;
 	box-sizing: border-box;
 }
@@ -30,22 +29,25 @@ header {
 	background-color: var(--header-background);
 	display: flex;
 	flex-direction: row;
-	padding: 1rem;
+	align-items: center;
+	padding: 0 1rem;
 	gap: 1rem;
 	font-weight: bold;
 	width: 100vw;
-	height: var(header-height);
+	height: var(--header-height);
 	box-sizing: border-box;
 }
 
 footer {
 	width: 100vw;
-	height: var(input-bar-height);
+	height: var(--input-bar-height);
-	background-color: #FDD;
+	background-color: var(--background);
 	display: flex;
 	flex-direction: row;
+	align-items: center;
 	padding: 0 1rem;
 	box-sizing: border-box;
+	gap: 1rem;
 }
 
 .request {
@@ -68,3 +70,11 @@ footer {
 	align-self: center;
 	margin-top: 0.5rem;
 }
+
+.textbox{
+	background-color: var(--header-background);
+	width: 80%;
+	height: 1rem;
+	padding: 0.2rem;
+	border-radius: 2rem;
+}

freeriders/templates/index.html

@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link rel="stylesheet" href="/styles/style.css">
-    <link rel="shortcut icon" href="/img/favicon.ico" type="image/x-icon">
-    <title>Ticket tracking</title>
-</head>
-<body>
-   <main>
-   </main> 
-</body>
-</html>

freeriders/templates/sms.html

@@ -4,7 +4,7 @@
 	<meta charset="utf-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<title>Karta</title>
-	<link rel="stylesheet" href="style.css">
+	<link rel="stylesheet" href="/static/style.css">
 </head>
 <body>
 	<header>
@@ -20,35 +20,8 @@
 			U Beogradu, za broj telefona ste kupili
 			VREMENSKU KARTU OD 90 MINUTA U ZONI A po
 			ceni od 50 din + osnovna cena poruke,
-			koja vazi do 03.10.2023, 09:42:54.
+			koja vazi do {{ date }}, {{ time }}.
-			Karta broj: 0000343232.
+			Karta broj: {{ ticket }}.
-			Placanjem operateru izmirujete dugovanja
-			za ovu kartu prema JKP Naplata prevozne
-			usluge Beograd. Sacuvajte ovu poruku. 
-		</section>
-		<section class='request'>
-			A90
-		</section>
-		<section class='ticket'>
-			U Beogradu, za broj telefona ste kupili
-			VREMENSKU KARTU OD 90 MINUTA U ZONI A po
-			ceni od 50 din + osnovna cena poruke,
-			koja vazi do 03.10.2023, 09:42:54.
-			Karta broj: 0000343232.
-			Placanjem operateru izmirujete dugovanja
-			za ovu kartu prema JKP Naplata prevozne
-			usluge Beograd. Sacuvajte ovu poruku. 
-		</section>
-		<section class='date'>08:23</section>
-		<section class='request'>
-			A90
-		</section>
-		<section class='ticket'>
-			U Beogradu, za broj telefona ste kupili
-			VREMENSKU KARTU OD 90 MINUTA U ZONI A po
-			ceni od 50 din + osnovna cena poruke,
-			koja vazi do 03.10.2023, 09:42:54.
-			Karta broj: 0000343232.
 			Placanjem operateru izmirujete dugovanja
 			za ovu kartu prema JKP Naplata prevozne
 			usluge Beograd. Sacuvajte ovu poruku. 

freeriders/templates/submit.html

@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<meta charset="utf-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<title>Submit</title>
+	<link rel="stylesheet" href="/static/style.css">
+</head>
+<body>
+	<main>
+		<form action="/submit" method="POST">
+			<label for="ticket">ticket</label>
+			<input type="text" name="ticket" id="ticket" placeholder="1234567890" required>
+			<button> Submit </button>
+		</form>
+	</main>
+</body>
+</html>

init_db.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+from freeriders import db
+
+print('[i] Trying to create databse...')
+try:
+    db.create_all()
+    print('[+] Success you can proceed with deployment!')
+except:
+    print('[-] Creating db failed :/')
+

requirments.txt

@@ -1 +1,2 @@
 flask
+SQLAlchemy