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


import datetime
import json
import os

import bcrypt
from app import create_app
from application.csvparser import CsvParser
from flask import Blueprint, redirect, render_template, request
from flask_wtf.csrf import CSRFProtect
from forms.borrowform import BorrowForm
from forms.uploadform import PublicationForm
from icalendar import Calendar
from PIL import Image
from requests import get
from search import search
from werkzeug.utils import secure_filename

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.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",
        title=APP.config["TITLE"],
        publications=publicatons,
        pubtypes=pubtypes,
        pubyears=pubyears,
        publicenses=publicenses,
    )
    return template


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


@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() and checksecret(
            borrowform.secret.data
        ):
            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.config["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))


def checksecret(secret):
    """small simple check to a secret, library group members can upload"""
    with open("secret") as f:
        secrethash = f.readline().rstrip()
        if bcrypt.checkpw(secret.encode("utf-8"), secrethash.encode("utf-8")):
            return True
        else:
            return False


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