from flask_login import UserMixin
from werkzeug.security import generate_password_hash, check_password_hash
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy.orm import relationship
import random
from belote_jeu import cards, N_PLAYERS, colors, winner, N_TURN

db = SQLAlchemy()

levels_users = {'Inactive':0, 'Simple user':1, 'Can create games':2, 'Can manage simple users': 8, 'Can manage games':9, 'Admin':10}

#######################################################################
#                             User class                              #
#######################################################################

class User(UserMixin, db.Model):
    """Model for user accounts."""

    __tablename__ = 'users'

    login = db.Column(db.String(100),
                   primary_key=True)
    name = db.Column(db.String(100),
                     nullable=False,
                     unique=False)
    password = db.Column(db.String(100),
                         primary_key=False,
                         unique=False,
                         nullable=False)
    level = db.Column(db.Integer, default=1)
    last_login = db.Column(db.DateTime)

    def set_password(self, password):
        """Create hashed password."""
        self.password = generate_password_hash(password, method='sha256')

    def check_password(self, password):
        """Check hashed password."""
        return check_password_hash(self.password, password)

    def get_id(self):
        return self.login

    def __repr__(self):
        return '<User {}>'.format(self.login)

#######################################################################
#                             Game class                              #
#######################################################################

class Game(db.Model):
    __tablename__ = 'games'

    id = db.Column(db.Integer, 
            primary_key=True)
    name = db.Column(db.String(200))
    players = relationship("Player")
    turn = db.Column(db.Integer, default=-8)
    atout = db.Column(db.String(1))
    preneur = db.Column(db.String(100))
    admin = db.Column(db.String(100), db.ForeignKey('users.login'))
    cards_to_distribute = db.Column(db.String(200))
    first_player = db.Column(db.Integer)
    start = db.Column(db.Boolean, default=False)
    last_played = db.Column(db.String(20))
    played = db.Column(db.String(20))
    fixplayers = db.Column(db.Boolean, default=False)
    points_0 = db.Column(db.Integer, default=0)
    points_1 = db.Column(db.Integer, default=0)
    cumul_0 = db.Column(db.Integer, default=0)
    cumul_1 = db.Column(db.Integer, default=0)
    partie = db.Column(db.Integer, default=1)

    def start_game(self, ordered_players):
        # Ordering players
        if self.fixplayers and not self.start:
            i=0
            if ordered_players is not None:
                for op in ordered_players:
                    player = Player.query.filter_by(game=self.id, user=op).first()
                    if player is not None:
                        player.nr = i
                        i+=1
                for p in self.players:
                    if p.nr is None or p.nr<0:
                        p.nr = i
                        i+=1
            db.session.commit()

            self.start = True
            self.first_player = 0
            self.distribute()
            db.session.commit()
            return True
        return False

    def fix_players(self):
        if self.can_start():
            self.fixplayers = True
            db.session.commit()

    def distribute(self):
        ___cartes = random.sample(cards, k=len(cards))
        for i in range(len(self.players)):
            self.players[i].cards = ','.join(___cartes[5*i:5*(i+1)])
        self.played = ___cartes[5*(i+1)]
        self.cards_to_distribute = ','.join(___cartes[5*(i+1)+1:])

    def authorized(self, user):
        for p in self.players:
            if user.login == p.user:
                return True
        return False
    
    def isadmin(self, user):
        return user.login == self.admin

    def serialize_state_anonymous(self):
        r = {}
        r['atout'] = self.atout
        r['preneur'] = self.preneur
        r['last_played'] = self.last_played.split(',') if self.last_played is not None else [] 
        r['played'] = self.played.split(',') if self.played is not None else []
        r['turn'] = self.turn
        r['first_player'] = self.first_player
        r['points'] = [self.points_0, self.points_1]
        r['cumul'] = [self.cumul_0, self.cumul_1]
        r['partie'] = self.partie
        return r

    def serialize_state(self, user):
        r = self.serialize_state_anonymous()
        r['players'] = self.get_ordered_players()
        r['playersinfo'] = {}
        for p in self.players:
            r['playersinfo'][p.user] = User.query.get(p.user).name
        r['nr'] = self.get_nr(user)
        r['admin'] = self.admin
        cards = self.get_player(user).cards
        r['cards'] = cards.split(',') if cards is not None else []
        return r

    def get_ordered_players(self):
        r = {}
        for p in self.players:
            r[p.nr] = p.user
            r2 = []
        for i in range(N_PLAYERS):
            r2.append(r[i] if i in r else None)
        return r2

    def get_nr(self, user):
        p = self.get_player(user)
        if p is not None :
            return p.nr
        else:
            return -1

    def get_player(self, user):
        if not isinstance(user, str):
            user = user.login
        return Player.query.filter_by(game=self.id, user=user).first()

    def can_join(self, user):
        if self.authorized(user):
            return True
        if not self.fixplayers and len(self.players) < N_PLAYERS:
            return True
        return False

    def can_start(self):
        if len(self.players)==N_PLAYERS:
            return True
        return False

    def join(self, user):
        if not self.fixplayers and not self.authorized(user):
            p = Player(game=self.id, user=user.login)
            db.session.add(p)
            db.session.commit()

    def leave(self, user):
        if not self.fixplayers:
            for p in self.players:
                if isinstance(user, str) and user != self.admin or hasattr(user, 'login') and user.login != self.admin:
                    if isinstance(user, str) and user == p.user or hasattr(user, 'login') and user.login == p.user:
                        db.session.delete(p)
                        db.session.commit()
                        return True
        return False

    def get_players(self):
        r = []
        for p in self.players:
            user = User.query.get(p.user)
            r.append({'username':user.login, 'name':user.name})
        return r
    
    def tour_choix(self, atout, user):
        if (self.turn + self.first_player) % N_PLAYERS == self.get_nr(user):
            self.turn += 1
            if atout is not None and atout in colors:
                self.atout = atout
                self.preneur = user.login
                self.turn = 0
                self.distribute_restant()
            db.session.commit()
            return True
        return False

    def distribute_restant(self):
        todistribute = self.cards_to_distribute.split(',')
        for pn in self.get_ordered_players():
            p = self.get_player(pn)
            if pn == self.preneur:
                p.cards += ',' + ','.join(todistribute[:2])
                p.cards += ',' + self.played
                todistribute = todistribute[2:]
            else:
                p.cards += ',' + ','.join(todistribute[:3])
                todistribute = todistribute[3:]
        self.cards_to_distribute = ''
        self.played = None

    def tour_jeu(self, carte, user):
        if (self.turn + self.first_player) % N_PLAYERS == self.get_nr(user):
            winnr = -1
            self.turn += 1
            if self.played is None or self.played == '':
                self.played = carte
            else:
                self.played += ',' + carte
            if self.turn % N_PLAYERS == 0 :
                winnr, points = winner(self.played, self.atout)
                if (self.first_player + winnr)%2 == 0:
                    self.points_0 += points
                else:
                    self.points_1 += points
                self.last_played = self.played
                if len(self.cards_to_distribute)>1:
                    self.cards_to_distribute += ','
                self.cards_to_distribute += self.played
                self.played = None
                self.first_player = (self.first_player + winnr)%4
            if self.turn == N_TURN*N_PLAYERS: # Dix de der, chute, belote et capote !
                if (self.first_player + winnr)%2 == 0:
                    self.points_0 += 10
                else:
                    self.points_1 += 10
                if self.get_player(self.preneur).nr %2 ==0 and self.points_0 < self.points_1:
                    self.points_0 = 0
                    self.points_1 = 162
                if self.get_player(self.preneur).nr %2 ==1 and self.points_1 < self.points_0:
                    self.points_0 = 162
                    self.points_1 = 0
                if self.points_0 == 162 or self.points_1 == 162:
                    winequipe = 0 if self.points_0 == 162 else 1
                    # Capote possible.
                    winnr = 0
                    ccc = self.cards_to_distribute.split(',')
                    for i in range(N_TURN):
                        win, xxx = winner(ccc[i*N_PLAYERS:(i+1)*N_PLAYERS], self.atout)
                        winnr = win+winnr
                        if winnr % 2 != winequipe:
                            break
                    else:
                        if winequipe == 0:
                            self.points_0 += 90
                        else:
                            self.points_1 += 90
                # belote possible
                winnr = 0
                belote =-1
                ccc = self.cards_to_distribute.split(',')
                for i in range(N_TURN):
                    cccc = ccc[i*N_PLAYERS:(i+1)*N_PLAYERS] 
                    if 'R'+self.atout in cccc:
                        if belote>=0:
                            if (cccc.index('R'+self.atout) + winnr)%4 == belote %4:
                                if belote %2 ==0:
                                    self.points_0 += 20
                                else:
                                    self.points_1 += 20
                        else:
                            belote = winnr + cccc.index('R'+self.atout)
                    if 'D'+self.atout in cccc:
                        if belote>=0:
                            if (cccc.index('D'+self.atout) + winnr)%4 == belote %4:
                                if belote %2 ==0:
                                    self.points_0 += 20
                                else:
                                    self.points_1 += 20
                        else:
                            belote = winnr + cccc.index('D'+self.atout)
                    win, xxx = winner(cccc, self.atout)
                    winnr = win+winnr
            # Retirer la carte du jeu !
            p = self.get_player(user)
            ccc = p.cards
            ccc = ccc.split(',')
            ccc.remove(carte)
            p.cards = ','.join(ccc)
            db.session.commit()
            return True, winnr
        return False, -1
    
    def restart_jeu(self):
        if (self.turn==0 and (self.atout=='' or self.atout is None)) or self.turn==N_TURN*N_PLAYERS:
            if self.turn>0:
                self.partie +=1
            self.turn = -8
            self.atout = None
            self.preneur = None
            self.last_played = None
            self.played = None
            self.cumul_0 += self.points_0
            self.cumul_1 += self.points_1
            self.points_0 = 0
            self.points_1 = 0
            self.first_player = 0
            self.distribute()
            db.session.commit()
            return True
        return False

#######################################################################
#                            Player class                             #
#######################################################################

class Player(db.Model):
    __tablename__ = 'players'

    id = db.Column(db.Integer,
            primary_key=True)
    game = db.Column(db.Integer, db.ForeignKey('games.id'))
    user = db.Column(db.String(100), db.ForeignKey('users.login'))
    cards = db.Column(db.String(40))
    nr = db.Column(db.Integer, default=-1)