import sys
from urllib.parse import urlparse
import requests
from requests_oauthlib import OAuth2Session
from selenium import webdriver
import os.path
import time
import http.server
import socketserver
from threading import Thread
from werkzeug.urls import url_decode
import pprint
from PyInquirer import prompt, print_json
import json
import datetime
import os
import argparse
import webbrowser

client_id = r'QeZPBSKqdvWFfBv1VYTSv9iFGz5T9pVJtNUjbEr6'
client_secret = r'0Wl3hAIGY9SvYOqTOLUiLNYa4OlCgZYdno9ZbcgCT7RGQ8x2f1l2HzZHsQ7ijC74A0mrOhhCVeZugqAmOADHIv5fHxaa7GqFNtQr11HX9ySTw3DscKsphCVi5P71mlGY'
redirect_uri = 'http://localhost:8000/callback/'
token_url = 'https://ion.tjhsst.edu/oauth/token/'
scope = ["read"]
USER = ""
PWD = ""

def main():
    print("")
    print("░██████╗██╗░░██╗░█████╗░░█████╗░██╗░░░░░  ░█████╗░░██████╗")
    print("██╔════╝██║░██╔╝██╔══██╗██╔══██╗██║░░░░░  ██╔══██╗██╔════╝")
    print("╚█████╗░█████═╝░██║░░██║██║░░██║██║░░░░░  ██║░░██║╚█████╗░")
    print("░╚═══██╗██╔═██╗░██║░░██║██║░░██║██║░░░░░  ██║░░██║░╚═══██╗")
    print("██████╔╝██║░╚██╗╚█████╔╝╚█████╔╝███████╗  ╚█████╔╝██████╔╝")
    print("╚═════╝░╚═╝░░╚═╝░╚════╝░░╚════╝░╚══════╝  ░╚════╝░╚═════╝░")
    print("")

    profiles = os.listdir()

    if not ("profile" in str(profiles)):
        try:
            URL = "http://127.0.0.1:8000/api/"
            r = requests.get(url = URL)
        except:
            print("Run Django server on http://127.0.0.1:8000/ before continuing")
            sys.exit(0)

        input("Welcome to SkoolOS. Press any key to create an account")
        #webbrowser.open("http://127.0.0.1:8000/login", new=2)
        authenticate()
    else:
        profiles = os.listdir()
        users = []
        info = []
        count = 1
        for i in range(len(profiles)):
            p = profiles[i]
            if('profile' in p):
                f = open(p,'r')
                d = json.loads(f.read())
                f.close()
                info.append(d)
                users.append(str(count) + ") " + d['username'])
                count = count+1
        users.append(str(count) + ") Make new user")
        user = [
        {
            'type': 'list',
            'name': 'user',
            'choices':users,
            'message': 'Select User: ',
        },
        ]
        u = int(prompt(user)['user'].split(")")[0]) -1
        if(u+1 == count):
            authenticate()
            return
        data = info[u]
        PWD = data['password']
        USER = data['username']
        print(data['username'])
        if(data['is_student']):
            studentCLI(USER, PWD)
        else:
            teacherCLI(USER, PWD)
        
#################################################################################################### STUDENT METHODS

def studentCLI(user, password):
    from CLI import student
    data = getUser(user, password, 'student')
    student = student.Student(data, password)
    student.update()
    EXIT = False
    while(not EXIT):
        course = chooseClassStudent(student)
        if(course == "Exit SkoolOS"):
            return
        EXIT = classOptionsStudent(student, course)

#return class
def  chooseClassStudent(student):
    carray = student.sclass.split(",")
    if(len(carray) == 1 and carray[0] == ""):
        carray.remove("")
        print("No classes")
        
    carray.append("Exit SkoolOS")
    courses = [
    {
        'type': 'list',
        'name': 'course',
        'choices':carray,
        'message': 'Select class: ',
    },
    ]
    course = prompt(courses)['course']
    print(course)
    return course

def classOptionsStudent(student, course):
    student.viewClass(course)
    student.getAssignments(course,  100)
    choices = ["Save","Back","Exit SkoolOS"]
    options = [
    {
        'type': 'list',
        'name': 'option',
        'choices':choices,
        'message': 'Select: ',
    },
    ]
    option = prompt(options)['option']
    if(option == "Save"):
        student.update()
        print("Saved!")
        classOptionsStudent(student, course)
    if(option == "Back"):
        student.exitCLI()
        #dont exit cli
        return False
    if(option == "Exit SkoolOS"):
        student.exitCLI()
        #exit cli
        return True

        
#################################################################################################### TEACHER METHODS
def teacherCLI(user, password):
    from CLI import teacher
    data = getUser(user, password, 'teacher')
    print(data)
    teacher = teacher.Teacher(data, password)
    EXIT = False
    # 1. make a class
    # 2. add studeents to an existing class
    # 3. Get progress logs on a student
    # 2. make an assignment for a class
    # 3. view student submissions for an assignment
    while(not EXIT):
        #Options: '1) Request Student', "2) Add assignment", "3) View student information", "4) Exit"
        course = chooseGeneralTeacher(teacher)
        if course == "Exit SkoolOS":
            EXIT = True
        elif course == "Make New Class":
            EXIT = makeClassTeacher(teacher)
        #selected a class
        else:
            option = classOptionsTeacher(teacher, course)
            if(option == '1'):
                EXIT = addStudentsTeacher(teacher, course)
            elif(option == '2'):
                EXIT = addAssignmentTeacher(teacher, course)
            elif(option == '3'):
                EXIT = viewStudentsTeacher(teacher, course)
            else:
                EXIT = True

def chooseGeneralTeacher(teacher):
    carray = []
    for c in teacher.classes:
        carray.append(c)
    carray.append("Make New Class")
    carray.append("Exit SkoolOS")
    courses = [
    {
        'type': 'list',
        'name': 'course',
        'choices':carray,
        'message': 'Select class: ',
    },
    ]
    course = prompt(courses)['course']
    return course

def makeClassTeacher(teacher):
    questions = [
    {
        'type': 'input',
        'name': 'cname',
        'message': 'Class Name (Must be: <subject>_<ion_user>): ',
    },
    ]
    cname = prompt(questions)['cname']
    print(cname)
    while(not ("_" + teacher.username) in cname):
        print("Incorrect naming format")
        questions = [
        {
            'type': 'input',
            'name': 'cname',
            'message': 'Class Name (Must be: <subject>_<ion_user>): ',
        },
        ]
        cname = prompt(questions)['cname']

    teacher.makeClass(cname)
    soption = ["1) Add individual student", "2) Add list of students through path", "3) Exit"]
    questions = [
    {
        'type': 'list',
        'choices':soption,
        'name': 'students',
        'message': 'Add Students): ',
    },        
    ]
    choice = prompt(questions)['students'].split(")")[0]
    if("1" == choice):
        s = input("Student name: ")
        teacher.addStudent(s, cname)
    if("2" == choice):
        print("File must be .txt and have 1 student username per line")
        path = input("Relative Path: ")
        while(not os.path.exists(path)):
            if(path == 'N'):
                return True
            print(path + " is not a valid path")
            path = input("Enter file path ('N' to exit): ")
        f = open(path, 'r')
        students = f.read().splitlines()
        teacher.reqAddStudentList(students, cname)
        return False

def classOptionsTeacher(teacher, course):
    print("Class: " + course)
    unconf = getDB(teacher.username, teacher.password, "http://localhost:8000/api/classes/" + course)['unconfirmed']
    for s in unconf:
        teacher.addStudent(s, course)
    options = ['1) Request Student', "2) Add assignment", "3) View student information", "4) Exit"]
    questions = [
    {
        'type': 'list',
        'name': 'course',
        'choices':options,
        'message': 'Select option: ',
    },
    ]
    option = prompt(questions)['course'].split(")")[0]
    return option

def addStudentsTeacher(teacher, course):
    soption = ["1) Add individual student", "2) Add list of students through path", "3) Exit"]
    questions = [
    {
        'type': 'list',
        'choices':soption,
        'name': 'students',
        'message': 'Add list of students (input path): ',
    },        
    ]
    schoice = prompt(questions)['students'].split(")")[0]
    if(schoice == '1'):
        questions = [
        {
            'type': 'input',
            'name': 'student',
            'message': 'Student Name: ',
        },
        ]
        s = prompt(questions)['student']
        teacher.reqStudent(s, course)
        return False
    if(schoice == '2'):
        questions = [
        {
            'type': 'input',
            'name': 'path',
            'message': 'Path: ',
        },
        ]
        path = prompt(questions)['path']
        while(not os.path.exists(path)):
            if(path == 'N'):
                sys.exit(0)
            print(path + " is not a valid path")
            path = input("Enter file path ('N' to exit): ")
        f = open(path, 'r')
        students = f.read().splitlines()
        teacher.reqAddStudentList(students, course)
        return False
    else:
        return True

def addAssignmentTeacher(teacher, course):
    nlist = os.listdir(teacher.username + "/" + course)
    alist = getDB(teacher.username, teacher.password, "http://localhost:8000/api/classes/" + course)['assignments']
    print(nlist)
    tlist = []
    b = True
    for n in nlist:
        b = True
        print(teacher.username + "/" + course + "/" + n)
        for a  in alist:
            if(n in a or n == a):
                #print("Assignments: " + n)
                b = False
        if(not os.path.isdir(teacher.username + "/" + course + "/" + n)):
            b = False
        if(b):
            tlist.append(n)


    nlist = tlist
    if(len(nlist) == 0):
        print("No new assignments found")
        print("To make an assignment: make a subdirectory in the " + course + " folder. Add a file within the new folder")
        return False
    questions = [
    {
        'type': 'list',
        'choices':nlist,
        'name': 'assignment',
        'message': 'Select new assignment: ',
    },        
    ]
    ass = prompt(questions)['assignment']
    apath = teacher.username + "/" + course + "/" + ass
    due = input("Enter due date (Example: 2020-08-11 16:58): ")
    due = due +  ":33.383124"
    due = due.strip()
    f = False
    while(not f):
        try:
            datetime.datetime.strptime(due, '%Y-%m-%d %H:%M:%S.%f')
            f = True
        except:
            print("Due-date format is incorrect.")
            print(due)
            due = input("Enter due date (Example: 2020-08-11 16:58): ")
            due = due +  ":33.383124"
    teacher.addAssignment(apath, course, due)
    return False

def viewStudentsTeacher(teacher, course):
    data = getDB(teacher.username, teacher.password, "http://127.0.0.1:8000/api/classes/" + course)
    students = data["confirmed"]
    unconf = data['unconfirmed']
    print("Studented in class: ")
    for s in students:
        print(s)
    print("Requsted Students: ")
    for s in unconf:
        print(s)
    student = input("View student (Enter student's ion username): ")
    while((not student in str(data['confirmed'])) or (not student in str(data['unconfirmed']))):
        print("Student not affiliated with class")
        student = input("View student ('N' to exit): ")
        if student == 'N':
            return True
    print(getDB(teacher.username, teacher.password, "http://127.0.0.1:8000/api/students/" + student + "/"))



############################################################################################################################################


def getUser(ion_user, password, utype):
        if('student' in utype):
            URL = "http://127.0.0.1:8000/api/students/" + ion_user + "/"
        else:
            URL = "http://127.0.0.1:8000/api/teachers/" + ion_user + "/"
        print(URL)
        r = requests.get(url = URL, auth=(ion_user,password)) 
        print(r.json())
        if(r.status_code == 200):
            data = r.json() 
            print(200)
            return data
        elif(r.status_code == 404):
            print("Make new account!")
            return None
        elif(r.status_code == 403):
            print("Invalid username/password")
            return None
        else:
            print(r.status_code) 
            return None

def patchDB(USER, PWD, url, data):
    r = requests.patch(url = url, data=data, auth=(USER,PWD))
    print("PATH:" + str(r.status_code))
    return(r.json())

def getDB(USER, PWD, url):
    r = requests.get(url = url, auth=(USER,PWD)) 
    print("GET:" + str(r.status_code))
    return(r.json())

def postDB(USER, PWD, url, data):
    r = requests.post(url = url, data=data, auth=(USER,PWD)) 
    print("POST:" + str(r.status_code))
    return(r.json())

def putDB(USER, PWD, url, data):
    r = requests.put(url = url, data=data, auth=(USER,PWD)) 
    print("PUT:" + str(r.status_code))
    return(r.json())

def delDB(USER, PWD, url):
    r = requests.delete(url = url, auth=(USER,PWD)) 
    print("DELETE:" + str(r.status_code))
    return None

def makePass():
    questions = [
    {
        'type': 'password',
        'name': 'pwd',
        'message': 'Enter SkoolOS Password (NOT ION PASSWORD): ',
    },
    ]
    pwd = prompt(questions)['pwd']
    while(len(pwd) < 7):
        print("Password too short (Must be over 6 characters)")
        pwd = prompt(questions)['pwd']
    conf = [
    {
        'type': 'password',
        'name': 'pwd',
        'message': 'Re-enter password: ',
    },
    ]
    pwd2 = prompt(conf)['pwd']
    while(not pwd == pwd2):
        print("Passwords do not match.")
        pwd2 = prompt(conf)['pwd']
    else:
        print("PASSWORD SAVED")
        return pwd

def authenticate():
    oauth = OAuth2Session(client_id=client_id, redirect_uri=redirect_uri, scope=scope)
    authorization_url, state = oauth.authorization_url("https://ion.tjhsst.edu/oauth/authorize/")

    cdir = os.getcwd()
    #Linux: chromdriver-linux
    #Macos: chromdriver-mac
    #Windows: chromdriver.exe
    path = os.path.join(os.getcwd(),'chromedriver','chromedriver-linux')

    browser = webdriver.Chrome(path)

    browser.get("localhost:8000/login")

    # while "http://localhost:8000/callback/?code" not in browser.current_url:
    #     time.sleep(0.25)

    url = browser.current_url
    gets = url_decode(url.replace("http://localhost:8000/login/?", ""))
    while "http://localhost:8000/login/?username=" not in browser.current_url and (not browser.current_url == "http://localhost:8000/"): #http://localhost:8000/
        time.sleep(0.25)

    url = browser.current_url
    gets = url_decode(url.replace("http://localhost:8000/login/?username=", ""))
    # code = gets.get("code")
    # if state == gets.get("state"):
    #     state = gets.get("state")
    #     print("states good")
    browser.quit()
    questions = [
    {
        'type': 'input',
        'name': 'username',
        'message': 'Enter SkoolOS Username (Same as ION Username): ',
    },
    {
        'type': 'password',
        'name': 'pwd',
        'message': 'Enter SkoolOS Password (NOT ION PASSWORD): ',
    },
    ]
    data =prompt(questions) 
    pwd = data['pwd']
    user = data['username']
    r = requests.get(url = "http://localhost:8000/api/", auth=(user,pwd)) 
    while(r.status_code != 200):
        print("INCORRECT LOGIN CREDENTIALS")
        r = requests.get(url = "http://localhost:8000/api/", auth=(user,pwd)) 
        data =prompt(questions) 
        pwd = data['pwd']
        user = data['username']
        print(r.status_code)
    r = requests.get(url = "http://localhost:8000/api/students/" + user + "/", auth=(user,pwd)) 
    is_student = False
    if(r.status_code == 200):
        is_student = True
        print("Welcome, student " + user)
        r = requests.get(url = "http://localhost:8000/api/students/" + user + "/", auth=(user,pwd))
        profile = r.json()
        username = profile['ion_user']
        grade = profile['grade']
        profile = {
            'username':username,
            'grade':grade,
            'is_student':is_student,
            'password':pwd,
        }
        fname = "." + username + "profile"
        profileFile = open(fname, "w")
        profileFile.write(json.dumps(profile))
        profileFile.close()

    else:
        print("Welcome, teacher " + user)
        r = requests.get(url = "http://localhost:8000/api/teachers/" + user + "/", auth=(user,pwd))
        profile = r.json()
        username = profile['ion_user']
        profile = {
            'username':username,
            'is_student':is_student,
            'password':pwd,
        }
        fname = "." + username + "profile"
        profileFile = open(fname, "w")
        profileFile.write(json.dumps(profile))
        profileFile.close()

    sys.exit(0)


def create_server():
    port = 8000
    handler = http.server.SimpleHTTPRequestHandler
    httpd = socketserver.TCPServer(("", port), handler)
    print("serving at port:" + str(port))
    httpd.serve_forever()

if __name__ == "__main__":
    main()