import flask
from flask import render_template, redirect, url_for, flash
from flask_login import LoginManager, login_user, logout_user, login_required, current_user

import moviedb_func
from moviedb_func import delete_movie_by_id

app = flask.Flask(__name__)
app.secret_key = "Start1234!"

login_manager = LoginManager()
login_manager.init_app(app)
login_manager.login_view = "login"

@login_manager.user_loader
def load_user(user_id):
    return moviedb_func.get_user_by_id(user_id)

@app.route("/register", methods=["GET", "POST"])
def register():
    if flask.request.method == "POST":
        username = flask.request.form.get("username")
        password = flask.request.form.get("password")
        if moviedb_func.get_user_by_username(username):
            flash("Benutzername existiert bereits")
            return redirect(url_for("register"))
        moviedb_func.add_user(username, password)
        return redirect(url_for("login"))
    return render_template("register.html")

@app.route("/login", methods=["GET", "POST"])
def login():
    if flask.request.method == "POST":
        username = flask.request.form.get("username")
        password = flask.request.form.get("password")
        user = moviedb_func.get_user_by_username(username)
        if user and user.check_password(password):
            login_user(user)
            return redirect(url_for("index"))
        flash("Ungültiger Benutzername oder Passwort")
    return render_template("login.html")

@app.route("/logout")
@login_required
def logout():
    logout_user()
    return redirect(url_for("login"))


@app.route("/", methods=["GET", "POST"])
@login_required
def index():
    page = flask.request.args.get('page', 1, type=int)
    per_page = 20
    search_query = ""
    if flask.request.method == "POST":
        search_query = flask.request.form.get("search")
    else:
        search_query = flask.request.args.get("search")

    data_all, total_pages = moviedb_func.show_movie_list(user_id=current_user.id, search_query=search_query, page=page, per_page=per_page)
    return render_template(
        "index.html",
        sitename="Meine Movieliste !!!",
        data_all=data_all,
        total_pages=total_pages,
        current_page=page,
        search_query=search_query
    )


@app.get("/add_movie")
def add_movie():
    return render_template(
        "add_movie.html",
        sitename="Meine Movieliste !!!",
        url="output",
        select_movie="add_movie",
        select_genre="add_genre",
        select_medium="add_medium",
        data=moviedb_func.all_select(),
        data_medium=moviedb_func.all_select(what_select="medium")
    )


@app.post("/output")
@login_required
def csv_output():
    select_add_movie = flask.request.form["add_movie"]
    select_medium = flask.request.form["add_medium"]
    select_medium_id = moviedb_func.search_id(
        search_name=select_medium, select_from="medium", select_where="medium")

    if moviedb_func.scrape_and_add_movie(movie_name=select_add_movie,
                                     medium_id=select_medium_id, user_id=current_user.id):
        flash("Film erfolgreich hinzugefügt!")
        return redirect(url_for('index'))
    else:
        flash("Film konnte nicht automatisch hinzugefügt werden. Bitte versuchen Sie die manuelle Eingabe.")
        return redirect(url_for('add_movie_manually', movie_name=select_add_movie, medium_id=select_medium_id))

@app.get("/add_movie_manually")
@login_required
def add_movie_manually():
    movie_name = flask.request.args.get('movie_name')
    medium_id = flask.request.args.get('medium_id')
    return render_template(
        "add_movie_manually.html",
        sitename="Manuelle Eingabe",
        movie_name=movie_name,
        medium_id=medium_id
    )

@app.post("/save_manual")
@login_required
def save_manual():
    movie_name = flask.request.form["movie_name"]
    medium_id = flask.request.form["medium_id"]
    director_name = flask.request.form["director_name"]
    release_year = flask.request.form["release_year"]
    genre_name = flask.request.form["genre_name"]

    if moviedb_func.add_manual_movie(movie_name=movie_name, medium_id=int(medium_id), director_name=director_name, release_year=int(release_year), genre_name=genre_name, user_id=current_user.id):
        flash("Film manuell erfolgreich hinzugefügt!")
        return redirect("/")
    else:
        flash("Fehler: Film konnte nicht manuell hinzugefügt werden. Möglicherweise existiert dieser Film bereits in deiner Liste.")
        return redirect(url_for('add_movie_manually', movie_name=movie_name, medium_id=medium_id))

@app.route("/delete_movie/<int:movie_id>", methods=["POST"])
@login_required
def delete_movie(movie_id):
    if moviedb_func.delete_movie_by_id(movie_id):
        flash("Film erfolgreich gelöscht!")
    else:
        flash("Fehler beim Löschen des Films.")
    return redirect(url_for("index"))


if __name__ == "__main__":
    moviedb_func.create_movie_database()
    app.run(port=5082, host="0.0.0.0", debug=True, ssl_context=('cert.pem', 'key.pem'))