# coding: utf-8
from flask import Flask, render_template, session, request, redirect, flash, g, url_for,jsonify
import os
import sqlite3
import ldap     
import py_ldap
import json

DATABASE = 'inquire.db'
servers = ["ldap://dc1.labs.wmi.amu.edu.pl", "ldap://dc2.labs.wmi.amu.edu.pl"]
suffix =  "@labs.wmi.amu.edu.pl";
port = 636;
root = "DC=labs,DC=wmi,DC=amu,DC=edu,DC=pl";


app = Flask(__name__)
app.secret_key = '846f1df9f7b9ead65e1a9c32a8c3522ebb6c823a6498a0f8'
'''
with app.app_context():
    db = g._database = sqlite3.connect(DATABASE)
    db_conn = db.cursor()
'''
@app.route('/')
def home():
    if not session.get('logged_in'):
        return render_template('login.html')
    else:
        if session['user_type'] == 'lecturer':
            return redirect('/lecturer')
        elif session['user_type'] == 'student':
            return redirect('/courses')

@app.route('/student',methods=['GET', 'POST'])
def student():
    db = sqlite3.connect(DATABASE)
    #db.row_factory = sql.Row
    db_conn = db.cursor()
    db_conn.execute("select * from question;")
    questions = db_conn.fetchall()
    return render_template('student.html', questions=questions)

@app.route('/ask', methods=['POST'])
def ask():
    if request.method == 'POST':
        question = request.get_data().decode("utf-8")
        db = sqlite3.connect(DATABASE)
        db_conn = db.cursor()

        db_conn.execute("INSERT INTO question (subject_id, question_text, upvotes) VALUES (?, ?,?);",(1,question,0))
        db.commit()
        return json.dumps({'success':True}), 200, {'ContentType':'application/json'} 

@app.route('/lecturer')
def lecturer():
    db = sqlite3.connect(DATABASE)
    #db.row_factory = sql.Row
    db_conn = db.cursor()
    db_conn.execute("select * from question;")
    questions = db_conn.fetchall()
    return render_template('lecturer.html', questions=questions)
 
@app.route('/login', methods=['POST'])
def do_login():
    login=request.form['name']
    password=request.form['password']
    ldapquery = py_ldap.LdapQuery(servers, port, root)
    auth=ldapquery.authenticate(login+suffix, password)
    if  auth==True and login == 's396355':
        session['logged_in'] = True
        session['user_type'] = 'lecturer'
    elif auth==True and login == 's441471':
        session['logged_in'] = True
        session['user_type'] = 'student'
    else:
        flash('Niepoprawne hasło/nazwa użytkownika!')
    return redirect('/')

@app.route('/logout', methods=['GET', 'POST'])
def logout():
    session['logged_in'] = False
    return redirect('/')

@app.route('/upvote/<quest_id>', methods=['POST'])
def upvote(quest_id):
    print("upvoted {}".format(quest_id))
    db = sqlite3.connect(DATABASE)
    db_conn = db.cursor()
    db_conn.execute("UPDATE question SET upvotes = upvotes + 1 WHERE question_id = ?;",(quest_id,))
    #db_conn.commit()
    db.commit()
    return '200'

@app.route('/answer/<quest_id>', methods=['POST'])
def answer(quest_id):
    answer = request.get_data().decode("utf-8")
    db = sqlite3.connect(DATABASE)
    db_conn = db.cursor()
    db_conn.execute("UPDATE question SET has_answer = 1 , answer = ? WHERE question_id = ?;",(answer,quest_id))
    db.commit()
    return redirect(url_for('student'))


@app.route('/delete', methods=['POST'])
def do_delete():
    quest_id = request.get_data().decode("utf-8")
    db = sqlite3.connect(DATABASE)
    db_conn = db.cursor()
    db_conn.execute("DELETE FROM question  WHERE question_id = ?;",(quest_id,))
    db.commit()
    return '200'



############################################################
@app.route('/courses')                                     #
def courses():                                             #
    return render_template('courses.html')

@app.route('/lectures/<lect_id>', methods=['POST', 'GET']) 
def lectures(lect_id):           
    return render_template('lectures.html')                

@app.route('/account', methods=['GET', 'POST'])
def account():
    if session.get('user_type') == 'lecturer':
        return redirect(url_for('lecturer'))               
    else:                                                  #
        return redirect(url_for('student'))                # 
############################################################




if __name__ == '__main__':
    
    app.run(host='0.0.0.0', debug = True)