go-music-player/gmus-backend/pkg/server/state.go

package server

import (
	"sync"

	"github.com/gorilla/websocket"
)

type Client struct {
	name      string
	conn      *websocket.Conn
	closeChan chan bool
	mu        sync.Mutex
}

type Member struct {
	Name     string `json:"name"`
	LastPing int64  `json:"lastPing"`
}

// Except for the client list, the application is stateless server-side.
// The source of truth for the current state of the player is that of the
// master client.
//
// If more than one client thinks that they are master, whichever sends
// an action across first should cause the other to obey the instruction
// and treat the first as master.
//
// The master client is responsible for:
// 1. Playing the music
// 2. Keeping the server updated regularly about the current state

type MusicPlayer struct {
	SongId      int     `json:"songId"`
	Playing     bool    `json:"playing"`
	CurrentTime float32 `json:"currentTime"`
	SeekTime    int     `json:"setTime"`

	Master string `json:"master"`
}