class CCPInfrastructureList extends HTMLElement{
  
  #boot;
  #infrastructures;
  #socket;
  #data = {};
  
  #serviceurl = "https://nubis1.int.d4science.net:8080" 
  #broadcasturl = "ws://nubis1.int.d4science.net:8989/ws/notification"
  
  constructor(){
    super()
    this.#boot = document.querySelector("d4s-boot-2")
  }

  connectedCallback(){
    this.fetchInfrastructures()
  }

  get data(){
    return this.#data
  }

  fetchInfrastructures(){
    console.log("Calling fetch infrastructures")
    this.#boot.secureFetch(this.#serviceurl + "/infrastructures").
    then(resp=>{
      console.log("Received resp for infrastructures ", resp.status)
      return resp.json()
    }).then(data=>{
      this.#infrastructures = data
      this.updateList()
    }).catch(err=>{
      alert("Error while downloading methods: ", err)
    })
  }
  
  updateList(resp){
    this.connectBroadcast()
    this.#infrastructures.forEach(i=>{
      this.#data[i.id] = { status : "unknown", type : i.type, name : i.name, runtimes : [] }
      this.#boot.secureFetch(this.#serviceurl + `/infrastructures/${i.id}/status`).then(
        ()=>console.log("Requested async status update for infrastructure ", i.id) 
      )
    })
  }
  
  connectBroadcast(){
    this.#socket = new WebSocket(this.#broadcasturl + "/infrastructures");
    this.#socket.onmessage = event=>{
      const data = JSON.parse(event.data)
      this.#data[data.infrastructure].status = data.status.toLowerCase()
      if(data.type.toLowerCase() === "update" && data.status.toLowerCase() === "ok"){
        this.#data[data.infrastructure].runtimes = data.data.runtimes
      }else{
        this.#data[data.infrastructure].runtimes = []
      }
      console.log("New Infrastructure status", this.#data)
    }
    window.setInterval( ()=>this.#socket.send("ping"), 30000)
  }
  
  getCompatibleRuntimes(rts){
    console.log("Request for ", rts)
    const available = Object.keys(this.#data).reduce((acc, i) => {
      console.log(this.#data[i].runtimes)
      const compatiblerts = this.#data[i].runtimes.
        filter(r=>rts.indexOf(r["descriptor-id"]) >= 0).
        map(cr=>{ return { runtime : cr, infrastructure : this.#data[i] } })
      return acc.concat(compatiblerts)
    }, [])
    return available
  }
}

window.customElements.define('d4s-ccp-infrastructurelist', CCPInfrastructureList);