"""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.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()
    if request.method == "POST":
        if borrowform.validate_on_submit():
            editborrowedby(publicationID, borrowform.borrowed.data)
            fullpublication["Borrowed"] = borrowform.borrowed.data
            return render_template(
                "publication.html",
                fullpublication=fullpublication,
                publicationID=publicationID,
                borrowform=borrowform,
            )
    # return a full publication with or without form errors
    return render_template(
        "publication.html",
        fullpublication=fullpublication,
        publicationID=publicationID,
        borrowform=borrowform,
    )


@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)