"""
All models for module
"""

from hashlib import blake2b
import hmac

from urllib.parse import quote
from datetime import datetime, timedelta
# from sqlalchemy.ext.hybrid import hybrid_method, hybrid_property
import markdown
from flask import Markup
from flask_login import UserMixin
from app import db, argon2, login_manager


ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'])
IMAGE_EXTENSIONS = set(['png', 'jpg', 'jpeg', 'gif'])


class User(db.Model, UserMixin):
    """Model for User"""
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, unique=True, nullable=False)
    email = db.Column(db.String(255), unique=True)
    discord = db.Column(db.String(255), unique=True)
    discord_id = db.Column(db.BigInteger, unique=True)
    game_id = db.Column(db.BigInteger, unique=True)
    alt = db.Column(db.Boolean, server_default='f', default=False)
    party_member = db.Column(db.Boolean, server_default='f', default=False)
    _password = db.Column("password", db.String(255))
    registration_at = db.Column(db.DateTime, default=datetime.utcnow)
    approved = db.Column(db.Boolean, server_default='f', default=False)

    def __init__(self, id=None):
        self.id = id

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

    @property
    def password(self):
        """Return the password"""
        return self._password

    @password.setter
    def password(self, password):
        """Hash password"""
        self._password = argon2.generate_password_hash(password)

    def check_password(self, password):
        """Check if password is correct"""
        return argon2.check_password_hash(self.password, password)

    def game_url(self):
        """Give profile url"""
        if self.game_id:
            return "https://rivalregions.com/#slide/profile/%d" % self.game_id
        return


    question_id = db.Column(
        db.Integer,
        db.ForeignKey("question.id")
    )
    user = db.relationship(
        "Question",
        backref=db.backref("users", lazy="dynamic")
    )


class Page(db.Model):
    """Model for Page"""
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String, nullable=False)
    datetime = db.Column(db.DateTime, default=datetime.utcnow)
    source = db.Column(db.String)
    private = db.Column(db.Boolean, server_default='f', default=False)

    def content(self):
        """Render page source"""
        return Markup(markdown.markdown(self.source, extensions=['tables', 'toc', 'meta']))


    def url(self):
        """Generate URL for page"""
        return quote(self.title.strip().lower().replace(" ", "_"))


    def path(self):
        """Generate path with parents"""
        if self.parent_id:
            return '%s/%s' % (self.parent.path(), self.url())
        return self.url()


    user_id = db.Column(
        db.Integer,
        db.ForeignKey("user.id")
    )
    user = db.relationship(
        "User",
        backref=db.backref("Pages", lazy="dynamic")
    )

    parent_id = db.Column(
        db.Integer,
        db.ForeignKey("page.id")
    )
    parent = db.relationship(
        "Page",
        backref=db.backref("children", lazy="dynamic"),
        uselist=False,
        remote_side=id
    )


class File(db.Model):
    """Model for Page"""
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String, nullable=False)
    datetime = db.Column(db.DateTime, default=datetime.utcnow)
    path = db.Column(db.String, nullable=False)
    identifier = db.Column(db.String)
    private = db.Column(db.Boolean, server_default='f', default=False)

    def url(self):
        """Generate URL for page"""
        return quote(self.title.strip().lower().replace(" ", "_"))


    def extension(self):
        """Return file extension"""
        return '.' in self.path and self.path.rsplit('.', 1)[1].lower()


    def is_image(self):
        """True if file is image"""
        return self.extension() in IMAGE_EXTENSIONS


    user_id = db.Column(
        db.Integer,
        db.ForeignKey("user.id")
    )
    user = db.relationship(
        "User",
        backref=db.backref("files", lazy="dynamic")
    )


class Ballot(db.Model):
    """Model for Ballot"""
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, nullable=False)
    description = db.Column(db.String)
    start_at = db.Column(db.DateTime, default=datetime.utcnow)
    end_at = db.Column(db.DateTime, nullable=False)

    user_id = db.Column(
        db.Integer,
        db.ForeignKey("user.id")
    )
    user = db.relationship(
        "User",
        backref=db.backref("options", lazy="dynamic")
    )

    priority_id = db.Column(
        db.Integer,
        db.ForeignKey("priority.id")
    )
    priority = db.relationship(
        "Priority",
        backref=db.backref("ballots", lazy="dynamic")
    )

    def active(self):
        """Check if vote is active"""
        today = datetime.today()
        if self.start_at <= today <= self.end_at:
            return True
        return False


class Priority(db.Model):
    """Model for Priority"""
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, nullable=False)
    description = db.Column(db.String, nullable=False)


class Question(db.Model):
    """Model for Question"""
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String, nullable=False)
    description = db.Column(db.String)
    combined_approval_voting = db.Column(db.Boolean, server_default='f', default=False)

    ballot_id = db.Column(
        db.Integer,
        db.ForeignKey("ballot.id")
    )
    ballot = db.relationship(
        "Ballot",
        backref=db.backref("questions", lazy="dynamic")
    )

    def has_voten(self, user_id):
        """Check if user has voted"""
        for option in self.options:
            if option.votes.filter(Vote.user_id == user_id).first():
                return True
        return False


    def get_option(self, option):
        """Get the pro option"""
        return self.options.filter(Option.name == option).first()


    def score(self):
        """Get winning option from question"""
        if self.combined_approval_voting:
            pro_option = self.get_option('Voor')
            pro_votes = pro_option.votes.count()
            against_option = self.get_option('Tegen')
            against_votes = against_option.votes.count()
            return pro_votes - against_votes

        higest = Option()
        for option in self.options:
            if higest.votes.count() < option.votes.count():
                higest = option
        return higest.name


class Option(db.Model):
    """Model for Option"""
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String)
    description = db.Column(db.String)

    user_id = db.Column(
        db.Integer,
        db.ForeignKey("user.id")
    )
    user = db.relationship(
        "User",
        backref=db.backref("eligible", lazy="dynamic")
    )

    question_id = db.Column(
        db.Integer,
        db.ForeignKey("question.id")
    )
    question = db.relationship(
        "Question",
        backref=db.backref("options", lazy="dynamic")
    )


class Vote(db.Model):
    """Model for Vote"""
    id = db.Column(db.Integer, primary_key=True)
    datetime = db.Column(db.DateTime, default=datetime.utcnow)

    option_id = db.Column(
        db.Integer,
        db.ForeignKey("option.id")
    )
    option = db.relationship(
        "Option",
        backref=db.backref("votes", lazy="dynamic")
    )

    user_id = db.Column(
        db.Integer,
        db.ForeignKey("user.id")
    )
    user = db.relationship(
        "User",
        backref=db.backref("votes", lazy="dynamic")
    )

class Code(db.Model):
    """Model for code"""
    id = db.Column(db.Integer, primary_key=True)
    expire_date = db.Column(db.DateTime, default=datetime.utcnow() + timedelta(days=20))
    secret = db.Column(db.String(255), unique=True)

    def get_digest(self, string):
        """Generate digest on string"""
        if isinstance(string, int):
            string = str(string)
        string = string.encode('utf-8')
        secret = self.secret.encode('utf-8')
        blake = blake2b(digest_size=3)
        blake.update(secret + string)
        return blake.hexdigest()