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application.py
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application.py
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from dotenv import load_dotenv
import os
from re import X
from cs50 import SQL
from flask import Flask, flash, redirect, render_template, request, session
from flask_session import Session
import requests
from tempfile import mkdtemp
from werkzeug.exceptions import default_exceptions, HTTPException, InternalServerError
from werkzeug.security import check_password_hash, generate_password_hash, check_password_hash
from datetime import datetime
from pytz import timezone, all_timezones
from helpers import convertToUserTZ, numExtraction, toLitres, calculateSleep, cmToFeet, KgToPounds, getTimeZone, login_required
load_dotenv()
app = Flask(__name__)
app.config["TEMPLATES_AUTO_RELOAD"] = True
#custom filters
app.jinja_env.filters["toLitres"] = toLitres
app.jinja_env.filters["cmToFeet"] = cmToFeet
app.jinja_env.filters["KgToPounds"] = KgToPounds
app.jinja_env.filters["numExtraction"] = numExtraction
app.jinja_env.filters["convertToUserTZ"] = convertToUserTZ
app.config["SESSION_FILE_DIR"] = mkdtemp()
app.config["SESSION_PERMANENT"] = False
app.config["SESSION_TYPE"] = "filesystem"
Session(app)
db = SQL(os.environ.get("DATABASE_URL"))
@app.route("/", methods = ["GET", "POST"])
@login_required
def index():
#POST request- when a user adds new information to track from the tracker column
if request.method == "POST":
glassesOfWater = 0
hoursOfSleep = 0
calories = 0
#getting values they submitted
try:
glassesOfWater += int(request.form.get("glassesOfWater"))
except:
pass
try:
hoursOfSleep += int(request.form.get("hoursOfSleep"))
if hoursOfSleep > 24:
hoursOfSleep = 0
except:
pass
try:
calories += int(float(request.form.get("calories")))
except:
pass
#if they added nothing and submitted, don't enter the blank information in the database.
if glassesOfWater == 0 and hoursOfSleep == 0 and calories == 0:
return redirect("/")
#entering data in the database.
db.execute("INSERT INTO history (user_id, glasses, sleep, calories) VALUES (?, ?, ?, ?);", session["user_id"], glassesOfWater, hoursOfSleep, calories)
flash("Added info", "alert")
return redirect("/")
#GET request- to get user deatils to display how much user should sleep etc and also display how many calories etc user should consume
rows = db.execute("SELECT * FROM users JOIN information ON users.id = information.user_id WHERE users.id = ?;", session["user_id"])
weight = rows[0]["weight"]
height = rows[0]["height"]
age = rows[0]["age"]
gender = rows[0]["gender"]
#calculate water user should drink everyday
try:
info = {"waterToDrink" : int(int(weight) * 2.205 * 2 / 3) }
info["glassesToDrink"] = int( info["waterToDrink"] / 8)
except:
info = {"waterToDrink" : ""}
#calculate sleep user should get everyday
try:
info["sleepToGet"] = calculateSleep(age)
except:
info["sleepToGet"] = ""
#calculate calories user should consume everyday, to maintain weight, for a sedentary life style.
try:
if gender == "Male":
info["caloriesToConsume"] = 1.2 * (10 * weight + 6.25 * height - 5 * age + 5)
elif gender == "Female":
info["caloriesToConsume"] = 1.2 * (10 * weight + 6.25 * height - 5 * age - 161)
except:
info["sleepToGet"] = ""
#calculate how much information user has inputted so far today
rows = db.execute(f"Select * from history where date_trunc('day', TRANSACTED AT TIME ZONE '{session['time_zone_3']}') = date(timezone('{session['time_zone_3']}', now())) AND user_id = {session['user_id']}")
glassesOfWater = 0
hoursOfSleep = 0
caloriesConsumed = 0
for row in rows:
glassesOfWater += row["glasses"]
hoursOfSleep += row["sleep"]
caloriesConsumed += row["calories"]
return render_template("index.html", info = info, glassesOfWater = glassesOfWater, hoursOfSleep = hoursOfSleep, caloriesConsumed = caloriesConsumed)
@app.route("/login", methods = ["POST", "GET"])
def login():
if session.get("user_id"):
return redirect("/")
if request.method == "POST":
user = request.form.get("username")
password = request.form.get("password")
timeZone = request.form.get("timeZone")
usernames = db.execute("SELECT * FROM users WHERE username = ?;", user)
if timeZone not in all_timezones:
return "time Zone error"
if len(usernames) != 1:
flash("Username does not exist", "error")
return render_template("login.html")
if check_password_hash(usernames[0]["hash"], password) == False:
flash("Invalid password", "error")
return render_template("login.html")
else:
session["user_id"] = usernames[0]["id"]
#session[time_zone_3] will be of the form -> 'IST'
session["time_zone_3"] = timeZone
print(session["time_zone_3"])
return redirect ("/")
return render_template("login.html")
@app.route("/register", methods = ["POST", "GET"])
def register():
if request.method == "POST":
user = request.form.get("username")
password = request.form.get("password")
confirmPassword = request.form.get("confirmation")
usernames = db.execute("SELECT username FROM users WHERE username = ?;", user)
if not user or len(user) < 5:
flash("Enter a valid username", "error")
return render_template("register.html")
elif not password or len(password) < 5:
flash("Enter a valid password", "error")
return render_template("register.html")
elif len(usernames) != 0:
flash("Username already exists", "error")
return render_template("register.html")
elif password != confirmPassword:
flash("Passwords don't match", "error")
return render_template("register.html")
hash = generate_password_hash(password)
#registering(inserting information into the database)
db.execute("INSERT INTO users (username, hash) VALUES (?, ?);", user, hash)
#get new user's id
roww = db.execute("SELECT id FROM users WHERE username = ?", user)
id = roww[0]["id"]
#create empty entry for the user in information table
db.execute("INSERT INTO information (user_id) VALUES (?);", id)
flash("Account created successfully", "success")
return redirect("/")
return render_template("register.html")
@app.route("/about")
def about():
return render_template("about.html")
@app.route("/changePassword", methods = ["GET", "POST"])
@login_required
def changePassword():
if request.method == "POST":
currentPass = request.form.get("currentPass")
newPassword = request.form.get("newPassword")
confirmNewPassword = request.form.get("confirmNewPassword")
if newPassword != confirmNewPassword:
flash("New passwords don't match", "error")
return render_template("changePassword.html")
elif len(newPassword) < 5:
flash("New password must at least be 5 characters long", "error")
return render_template("changePassword.html")
rows = db.execute("SELECT * FROM users WHERE id = ?", session["user_id"])
if check_password_hash(rows[0]["hash"], currentPass) == True:
db.execute("UPDATE users SET hash = ? WHERE id = ?", generate_password_hash(newPassword), session["user_id"])
flash("Password changed successfully", "success")
return redirect("/accountsettings")
else:
flash("Incorrect current password", "error")
return render_template("changePassword.html")
return render_template("changePassword.html")
@app.route("/history")
@login_required
def history():
#get details for today only
today = db.execute(f"Select *, to_char(TRANSACTED, 'DD-MM-YYYY HH24:MI') as date from history where date_trunc('day', TRANSACTED AT TIME ZONE '{session['time_zone_3']}') = date(timezone('{session['time_zone_3']}', now())) AND user_id = {session['user_id']} ORDER BY TRANSACTED DESC")
#older details(not including today), grouped by date
older = db.execute(f"SELECT to_char(date , 'DD-MM-YYYY') AS date, glasses, sleep, calories FROM (SELECT date_trunc('day', TRANSACTED AT TIME ZONE '{session['time_zone_3']}') as date, SUM(glasses) AS glasses, SUM(sleep) AS sleep, SUM(calories) AS calories FROM history WHERE user_id = {session['user_id']} AND date_trunc('day', TRANSACTED AT TIME ZONE '{session['time_zone_3']}') != date(timezone('{session['time_zone_3']}', now())) GROUP BY date) as hist ORDER BY hist.date DESC")
return render_template("history.html", today = today, older=older)
# Contact API to display search results in the website index
#documentation- https://docs.google.com/document/d/1_q-K-ObMTZvO0qUEAxROrN3bwMujwAN25sLHwJzliK0/edit#
@app.route("/searchFood")
@login_required
def searchFood():
try:
api_key = os.environ.get("API_KEY")
api_id = os.environ.get("API_ID")
user_id = str(session['user_id'])
name = request.args.get("q")
url = f"https://trackapi.nutritionix.com/v2/search/instant?query={name}"
headers = {'x-app-id': api_id, 'x-app-key': api_key, 'x-remote-user-id' : user_id}
response = requests.get(url, headers=headers)
response = response.json()
except requests.RequestException:
return None
# Parse response
try:
return {
"common": response["common"],
"branded" : response["branded"]
}
except (KeyError, TypeError, ValueError):
return None
@app.route("/nutritionInfo") #contact api to get the amount of calories in selected option in index
@login_required
def nutritionInfo():
try:
api_key = os.environ.get("API_KEY")
api_id = os.environ.get("API_ID")
user_id = str(session['user_id'])
name = request.args.get("q")
body = {"query": name}
url = f"https://trackapi.nutritionix.com/v2/natural/nutrients"
headers = {'Content-Type': 'application/x-www-form-urlencoded', 'x-app-id': api_id, 'x-app-key': api_key, 'x-remote-user-id' : user_id }
response = requests.post(url, headers=headers, data = body)
response = response.json()
return {
"calories" : response["foods"][0]["nf_calories"]
}
except requests.RequestException:
return None
@app.route("/moreinfo") #route to get history of a particular day
@login_required
def moreInfo():
date = request.args.get("index")
#checking if it's a valid date.
list = [0, 0]
for i in date:
if i.isdigit():
list[0] += 1
elif i == '-':
list[1] += 1
if len(date) != 10 or list[1] != 2 or list[0] != 8:
return "grr"
rows = db.execute(f"SELECT *, to_char(TRANSACTED, 'DD-MM-YYYY HH24:MI') as date1 FROM history WHERE user_id = {session['user_id']} AND to_char(TRANSACTED AT TIME ZONE '{session['time_zone_3']}', 'DD-MM-YYYY') = '{date}'")
return render_template("moreinfo.html", rows = rows, date = date)
@app.route("/accountsettings", methods = ["GET", "POST"])
@login_required
def accountSettings():
#POST request- to add information to the account
if request.method == "POST":
gender = request.form.get("gender")
genders = ["Male", "Female", ""]
#checking if user entered a valid gender.
if gender not in genders:
return "grr"
age = request.form.get("age")
try:
weight = float(request.form.get("weight"))
weight = round(float(weight), 2)
#if weight was entered in pounds, it will be converted to kgs here
if request.form.get("options") == "pounds":
weight = round(float(weight / 2.205), 2)
except:
weight = 0
if request.form.get("options2") == "feetAndInches":
#this executes if height is entered in feet and inches and converts the height to cm
inches = (12 * int(request.form.get("height"))) + int(request.form.get("inches"))
height = inches * 2.54
else:
#this executes if height is entered in cms
height = request.form.get("height")
db.execute("UPDATE information SET age = ?, height = ?, weight = ?, gender = ? WHERE user_id = ?;", age, height, weight, gender, session["user_id"])
flash("Info added successfully", "success")
return redirect("/accountsettings")
#GET request- to display account's current information
fields = ["gender", "age", "weight", "height"]
rows = db.execute("SELECT * FROM information WHERE user_id = ?;", session["user_id"])
return render_template("accountSettings.html", user = rows[0], fields = fields)
@app.route("/logout")
def logout():
session.clear()
return redirect("/login")