lustre

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n.length?this.#n?.send({kind:Q,messages:n.map(([t,r])=>({kind:K,name:t,value:r}))}):this.#o.push(...n)});constructor(){super(),this.internals=this.attachInternals(),this.#f.observe(this,{attributes:!0})}connectedCallback(){this.#e=this.getAttribute("method")||"ws";for(let n of this.attributes)this.#o.push([n.name,n.value]);let e=this.getAttribute("route");e&&(this.#t=new URL(e,location.href),this.#a())}attributeChangedCallback(e,n,t){switch(e){case(n!==t&&"route"):{this.#t=new URL(t,location.href),this.#a();return}case"method":{let r=t.toLowerCase();if(r==this.#e)return;["ws","sse","polling"].includes(r)&&(this.#e=r,this.#e=="ws"&&(this.#t.protocol=="https:"&&(this.#t.protocol="wss:"),this.#t.protocol=="http:"&&(this.#t.protocol="ws:")),this.#a());return}}}async messageReceivedCallback(e){switch(e.kind){case At:{for(this.#r??=this.attachShadow({mode:e.open_shadow_root?"open":"closed"});this.#r.firstChild;)this.#r.firstChild.remove();P(null,this.#r),this.#s=new 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CustomEvent("lustre:close"),{detail:{route:this.#t,method:this.#e}})}};switch(this.#e){case"ws":this.#n=new ge(this.#t,r);break;case"sse":this.#n=new ve(this.#t,r);break;case"polling":this.#n=new ke(this.#t,r);break}}async#d(){for(;this.#i.length;)this.#i.pop().remove(),this.#r.firstChild.remove();this.#i=await St(this.#r),this.#s.offset=this.#i.length}},ge=class{#r;#e;#t=!1;#n=[];#i;#s;#u;constructor(e,{onConnect:n,onMessage:t,onClose:r}){this.#r=e,this.#e=new WebSocket(this.#r),this.#i=n,this.#s=t,this.#u=r,this.#e.onopen=()=>{this.#i()},this.#e.onmessage=({data:s})=>{try{this.#s(JSON.parse(s))}finally{this.#n.length?this.#e.send(JSON.stringify({kind:Q,messages:this.#n})):this.#t=!1,this.#n=[]}},this.#e.onclose=()=>{this.#u()}}send(e){if(this.#t||this.#e.readyState!==WebSocket.OPEN){this.#n.push(e);return}else this.#e.send(JSON.stringify(e)),this.#t=!0}close(){this.#e.close()}},ve=class{#r;#e;#t;#n;#i;constructor(e,{onConnect:n,onMessage:t,onClose:r}){this.#r=e,this.#e=new EventSource(this.#r),this.#t=n,this.#n=t,this.#i=r,this.#e.onopen=()=>{this.#t()},this.#e.onmessage=({data:s})=>{try{this.#n(JSON.parse(s))}catch{}}}send(e){}close(){this.#e.close(),this.#i()}},ke=class{#r;#e;#t;#n;#i;#s;constructor(e,{onConnect:n,onMessage:t,onClose:r,...s}){this.#r=e,this.#n=n,this.#i=t,this.#s=r,this.#e=s.interval??5e3,this.#u().finally(()=>{this.#n(),this.#t=setInterval(()=>this.#u(),this.#e)})}async send(e){}close(){clearInterval(this.#t),this.#s()}#u(){return fetch(this.#r).then(e=>e.json()).then(this.#i).catch(console.error)}};customElements.define("lustre-server-component",ye);export{ye as ServerComponent};