liveh5-nuxt/app/utils/websocket.ts

export class WebSocketClient {
    private socket: WebSocket | null = null
    private baseUrl: string
    private token: string

    constructor(baseUrl: string, token: string) {
        this.baseUrl = baseUrl
        this.token = token
    }

    connect(path: string, params: Record<string, any> = {}) {
        // 如果存在旧连接，先关闭
        this.disconnect()

        // 构建参数对象，自动添加 token
        const queryParams = {
            token: this.token,
            ...params
        }

        // 构建查询字符串
        const queryString = '?' + Object.entries(queryParams)
            .map(([key, value]) => `${encodeURIComponent(key)}=${encodeURIComponent(value)}`)
            .join('&')

        // 构建完整的 WebSocket URL
        const wsUrl = `${this.baseUrl}${path}${queryString}`
        this.socket = new WebSocket(wsUrl)

        return {
            onOpen: (callback: () => void) => {
                this.socket!.onopen = callback
            },
            onMessage: (callback: (data: any) => void) => {
                this.socket!.onmessage = (event) => {

                    try {
                        const data = JSON.parse(event.data)

                        callback(data)
                    } catch (error) {
                        console.error('解析消息失败:', error)
                    }
                }
            },
            onClose: (callback: () => void) => {
                this.socket!.onclose = callback
            },
            onError: (callback: (error: Event) => void) => {
                this.socket!.onerror = callback
            }
        }
    }

    disconnect() {
        if (this.socket) {
            this.socket.close()
            this.socket = null
        }
    }

    isConnected() {
        return this.socket?.readyState === WebSocket.OPEN
    }
}