package controllers

import (
	"log"
	"server/models"

	"github.com/gorilla/websocket"
)

func (h *Hub) readLoop(conn *websocket.Conn) {
	var id uint32
	log.Println("client ws connected")

	defer func() {
		conn.Close()
		if id != 0 {
			h.removeEntity(id)
			log.Println("entity [player] removed:", id)
		}

		log.Println("client ws disconnected")
	}()

	for {
		_, bytes, err := conn.ReadMessage()
		if err != nil {
			return
		}

		msg, err := models.Decode(bytes)
		if err != nil {
			log.Println(err)
			continue
		}

		switch msg.Type {

		case MSG_WELCOME:
			reader := models.NewReader(msg.Payload)
			log.Println("MSG_WELCOME received", &msg.Payload)
			id = reader.ReadU32()
			name := reader.ReadString()

			if h.Entities[id] != nil {
				h.ErrorMsg("Entity already exists", conn)
			}

			player := &models.Player{
				BaseEntity: models.BaseEntity{ID: id},
				Name:       name,
			}

			h.addEntity(id, player)
			h.Clients[id] = conn
			log.Println("entity [player] added:", id)

		case MSG_INPUT:
			reader := models.NewReader(msg.Payload)
			id := reader.ReadU32()
			x := reader.ReadF32()
			y := reader.ReadF32()
			z := reader.ReadF32()
			h.updateEntityPosition(x, y, z, id)
			log.Println(h.Entities)
		}
	}
}