from app import app,db
from flask import render_template, redirect, flash, request
from app.forms import LoginForm, RegistrationForm, EditProfileForm #Importing the form
from flask_login import current_user, login_user, login_required, logout_user #importing login_manager functionality
from app.models import User, Post #importing tables from database
from flask import url_for
from werkzeug.urls import url_parse
from datetime import datetime



@app.route('/')
@app.route('/index') #defining Url
def index():
	user = {'username':'Abhishek'}
	posts = [
		{
			'author':{'username':'John'},
			'body':'I am trying to learn flask'
		},
		{
			'author':{'username':'Abhishek'},
			'body':'Avenger endgame awaits'
		}
		]
	return render_template('index.html',title='Home',posts=posts)

@app.route('/login',methods=['GET','POST'])
def login():
	if current_user.is_authenticated: #checking if user is logedin
		return redirect(url_for("index"))

	form = LoginForm() #importing form if user is not logedin
	if form.validate_on_submit():
		user = User.query.filter_by(username=form.username.data).first()
		if user is None or not user.check_password(form.password.data): #testing for password unmatch or invalid username
			flash('Invalid username or password')
			return redirect(url_for("login")) #redicting to login page with warning
		login_user(user,remember=form.remember_me.data) #if match then login the user
		#deciding the redirecting page
		next_page = request.args.get('next') #if some next option if available
		if ((not next_page) or (url_parse(next_page).netloc != '')):
			next_page = url_for('index')
		#deciding the redirecting page
		return redirect(next_page)
	return render_template('login.html',title='Sign In',form=form)


@app.route('/logout')
def logout():
	logout_user()
	return redirect(url_for('index'))

@app.route('/register',methods=['GET','POST'])
def register():
	if current_user.is_authenticated:
		return redirect(url_for('index'))
	form = RegistrationForm()

	if form.validate_on_submit():
		user = User(username=form.username.data,email=form.email.data)
		user.set_password(form.password.data)
		db.session.add(user)
		db.session.commit()
		flash("Congratulations you are registered!")
		return redirect(url_for('login'))
	return render_template('register.html',title='Register',form=form)

@app.route('/user/<username>')
@login_required
def user(username):
	user = User.query.filter_by(username=username).first_or_404()
	#coded posts for now
	posts = [
		{'author': user, 'body': 'Test post #1'},
		{'author': user, 'body': 'Test post #2'}
	]
	return render_template('user.html',user=user,posts=posts)

@app.route('/edit_profile',methods=['GET','POST'])
@login_required
def edit_profile():
	form = EditProfileForm()

	if form.validate_on_submit():
		current_user.username = form.username.data
		current_user.about_me = form.about_me.data
		db.session.commit()
		flash('Your changes are saved')
		return redirect(url_for('edit_profile'))
	elif request.method =='GET':
		form.username.data = current_user.username
		form.about_me.data = current_user.about_me
	return render_template('edit_profile.html',title='Edit Profile',form=form)



@app.before_request
def before_request():
	if current_user.is_authenticated:
		current_user.last_seen = datetime.utcnow()
		db.session.commit()



@app.route('/test')
@login_required #Login is required before viewing this link
def test():
	return "Its test"