"""
NPC 
exists in a room
broadcasts the the same join, leave, move, talk, intro events
is rendered like and avatar by the client
is controlled by the server
"""
from flask_socketio import emit, send


class NPC ():

    def __init__(self, io, o, gameState):
        print(f"Create NPC {o['id']} in room {o['room']} nickNamed {o['nickName']}")
        self.io = io
        self.gameState = gameState
        self.id = o['id']
        self.nickName = o['nickName']
        self.room = o['room']
        self.avatar = o['avatar']
        self.colors = o['colors']
        self.x = o['x'] * 2;
        self.y = o['y'] * 2;
        self.destinationX = o['x']
        self.destinationY = o['y']

        if o['labelColor']:
            self.labelColor = o['labelColor']
        else:
            self.labelColor = "#FFFFFF" # oops server doesn't know about colors

        # add to NPC list
        self.gameState['NPCs'][self.id] = self

    def sendIntroTo (self, pId):
        """ mimicks the emission from players """
        print(f"HELLO I'm {self.nickName} in {self.room}, pId: {pId}")
        # If I'm not the new player send an introduction to the new player 
        # slight issue, server doesn't compute movements so if moving it appears at the destination
        # a way to solve this would be to save the time of the movement and lerp it
        self.io.emit("onIntro", {
            'id': self.id,
            'nickName': self.nickName,
            'colors': self.colors,
            'avatar': self.avatar,
            'room': self.room,
            'x': self.destinationX,
            'y': self.destinationY,
            'destinationX': self.destinationX,
            'destinationY': self.destinationY
        }, room=pId)

    def move (self, dx, dy):
        print(f"HELLO I'm {self.nickName} and I move to {dx} {dy} in room: {self.room}")
        # broadcast the movement to everybody in the room
        # it doesn't check if the position is valid
        
        self.io.emit("playerMoved", {
            'id': self.id,
            'x': self.x,
            'y': self.y,
            'destinationX': dx,
            'destinationY': dy
        }, room=self.room)
        # update for future intros
        self.destinationX = self.x = dx
        self.destinationY = self.y = dy

    def talk (self, message):
        self.io.emit("playerTalked", {
            'id': self.id,
            'color': self.labelColor,
            'message': message,
            'x': self.x,
            'y': self.y
        }, room=self.room)

    def delete (self):
        self.io.emit("playerLeft", { 'id': self.id, 'room': self.room, 'disconnect': true }, room=self.room)
        del self.gameState['NPCs'][self.id]