"""This is the main flask library page"""


import datetime
import json
import os
from datetime import timedelta

import bcrypt
from flask import (
    Blueprint,
    redirect,
    render_template,
    request,
    session,
    url_for,
)
from flask_login import current_user, login_required, logout_user
from flask_wtf.csrf import CSRFError, CSRFProtect
from icalendar import Calendar
from PIL import Image
from requests import get
from werkzeug.utils import secure_filename

from app import create_app, login_manager
from application.search import search
from application.csvparser import CsvParser
from application.forms.borrowform import BorrowForm
from application.forms.image_uploadform import ImageUploadForm
from application.forms.pdf_uploadform import PdfUploadForm
from application.forms.publicationform import PublicationForm
from application.models.usermodel import User
from application.user.forgotpassword import ForgotPassword
from application.user.loginuser import LoginUser
from application.user.registeruser import RegisterUser
from application.user.resetpassword import ResetPassword


APP = create_app()
csrf = CSRFProtect()
csrf.init_app(APP)
files = Blueprint("files", __name__, static_folder="files")
APP.register_blueprint(files)
csvparser = CsvParser(
    APP.config["LIBRARY_FILENAME"], APP.config["IMAGE_FOLDER"]
)


@APP.before_request
def session_handler():
    session.permanent = True
    APP.permanent_session_lifetime = timedelta(minutes=30)


@APP.route("/")
def index():
    """Main route, shows all the books and you can filter them
    based on year, type"""
    pubtypes = csvparser.gettypes()
    pubyears = csvparser.getyears()
    publicenses = csvparser.getlicenses()
    publicatons = csvparser.getpublications()
    template = render_template(
        "index.html",
        publications=publicatons,
        pubtypes=pubtypes,
        pubyears=pubyears,
        publicenses=publicenses,
    )
    return template


@APP.route("/upload", methods=["GET", "POST"])
@login_required
def upload():
    """Upload route, a page to upload a book to the csv"""
    publicationform = PublicationForm()
    if request.method == "POST":
        if publicationform.validate_on_submit():
            id = csvparser.writepublication(publicationform)
            saveimage(publicationform.image.data, id)
            return redirect(str(id), code=303)
        else:
            return render_template("upload.html", publicationform=publicationform)
    return render_template("upload.html", publicationform=publicationform)


@APP.route("/<publicationID>", methods=["GET", "POST"])
def show_book(publicationID):
    """route for a single publication, shows full info and allows borrowing"""
    fullpublication = csvparser.getfullpublication(publicationID)
    borrowform = BorrowForm()
    image_uploadform = ImageUploadForm()
    pdf_uploadform = PdfUploadForm()
    if request.method == "POST":
        if borrowform.validate_on_submit():
            editborrowedby(publicationID, borrowform.borrowed.data)
            fullpublication["Borrowed"] = borrowform.borrowed.data
        if image_uploadform.validate_on_submit():
            saveimage(image_uploadform.image.data, fullpublication.id)

    # return a full publication with or without form errors
    return render_template(
        "publication.html",
        fullpublication=fullpublication,
        publicationID=publicationID,
        borrowform=borrowform,
        image_uploadform=image_uploadform,
        pdf_uploadform=pdf_uploadform,
    )


@APP.route("/search/<search_query>", methods=["GET"])
def searchbooks(search_query):
    print(f"Searched for {search_query}")
    search_results = search(search_query)
    return json.dumps(search_results)


def saveimage(image, id):
    """helper function that can save images"""
    image.save(os.path.join(APP.config["UPLOAD_FOLDER"], image.filename))
    orig_image = Image.open(
        os.path.join(APP.confmailig["UPLOAD_FOLDER"], image.filename)
    )
    new_width = 640
    new_height = int(new_width * orig_image.height / orig_image.width)
    resized_image = orig_image.resize((new_width, new_height), Image.ANTIALIAS)
    filename = secure_filename("image-{0}.jpg".format(id))
    resized_image.save(os.path.join("static/images/", filename), "JPEG")
    os.remove(os.path.join(APP.config["UPLOAD_FOLDER"], image.filename))


@APP.route("/logout")
@login_required
def logout():
    logout_user()
    return redirect(url_for("index"))


@APP.route("/login", methods=["GET", "POST"])
def login():
    return LoginUser()


@APP.route("/register", methods=["GET", "POST"])
def register():
    return RegisterUser()


@APP.route("/forgotpassword", methods=["GET", "POST"])
def forgotpassword():
    return ForgotPassword()


@APP.route("/resetpassword/<path>", methods=["GET", "POST"])
def resetpassword(path):
    return ResetPassword(path)


@APP.errorhandler(CSRFError)
def handle_csrf_error(e):
    return render_template("csrf_error.html", reason=e.description), 400


@login_manager.user_loader
def load_user(user_id):
    return User.query.get(int(user_id))


@APP.errorhandler(CSRFError)
def handle_csrf_error(e):
    return render_template("csrf_error.html", reason=e.description), 400


if __name__ == "__main__":
    APP.debug = True
    APP.run(port=5000)