lustre

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t=i.currentTarget[u].handlers.get(i.type);i.type==="submit"&&(i.detail??={},i.detail.formData=[...new FormData(i.target).entries()]),t(i)},vr=(i,e=[])=>{let t={};(i.type==="input"||i.type==="change")&&e.push("target.value"),i.type==="submit"&&e.push("detail.formData");for(let r of e){let n=r.split(".");for(let s=0,c=i,m=t;s<n.length;s++){if(s===n.length-1){m[n[s]]=c[n[s]];break}m=m[n[s]]??={},c=c[n[s]]}}return t},vt=i=>({added(e){e[i]=!0},removed(e){e[i]=!1}}),jr=i=>({added(e,t){e[i]=t}}),jt={checked:vt("checked"),selected:vt("selected"),value:jr("value"),autofocus:{added(i){queueMicrotask(()=>i.focus?.())}},autoplay:{added(i){try{i.play?.()}catch(e){console.error(e)}}}};var Lt=0;var Ot=1;var St=2;var K=0;var Et=1;var At=2;var X=3;var ve=class extends HTMLElement{static get observedAttributes(){return["route","method"]}#n;#e="ws";#r=null;#t=null;#i=[];#s;#o=new Set;#c=new Set;#u=!1;#l=[];#d=new MutationObserver(e=>{let t=[];for(let r of e){if(r.type!=="attributes")continue;let n=r.attributeName;(!this.#u||this.#o.has(n))&&t.push([n,this.getAttribute(n)])}if(t.length===1){let[r,n]=t[0];this.#t?.send({kind:K,name:r,value:n})}else t.length?this.#t?.send({kind:X,messages:t.map(([r,n])=>({kind:K,name:r,value:n}))}):this.#l.push(...t)});constructor(){super(),this.internals=this.attachInternals(),this.#d.observe(this,{attributes:!0})}connectedCallback(){this.#e=this.getAttribute("method")||"ws";for(let t of this.attributes)this.#l.push([t.name,t.value]);let e=this.getAttribute("route");e&&(this.#r=new URL(e,location.href),this.#a())}attributeChangedCallback(e,t,r){switch(e){case(t!==r&&"route"):{this.#r=new URL(r,location.href),this.#a();return}case"method":{let n=r.toLowerCase();if(n==this.#e)return;["ws","sse","polling"].includes(n)&&(this.#e=n,this.#e=="ws"&&(this.#r.protocol=="https:"&&(this.#r.protocol="wss:"),this.#r.protocol=="http:"&&(this.#r.protocol="ws:")),this.#a());return}}}async messageReceivedCallback(e){switch(e.kind){case Lt:{for(this.#n??=this.attachShadow({mode:e.open_shadow_root?"open":"closed"});this.#n.firstChild;)this.#n.firstChild.remove();B(this.#n),this.#s=new F(this.#n,(r,n,s)=>{this.#t?.send({kind:Et,path:n,name:s,event:r})},{useServerEvents:!0}),this.#o=new Set(e.observed_attributes);let t=this.#l.filter(([r])=>this.#o.has(r));t.length&&this.#t.send({kind:X,messages:t.map(([r,n])=>({kind:K,name:r,value:n}))}),this.#l=[],this.#c=new Set(e.observed_properties);for(let r of this.#c)Object.defineProperty(this,r,{get(){return this[`_${r}`]},set(n){this[`_${r}`]=n,this.#t?.send({kind:At,name:r,value:n})}});e.will_adopt_styles&&await this.#f(),this.#s.mount(e.vdom),this.dispatchEvent(new CustomEvent("lustre:mount"));break}case Ot:{this.#s.push(e.patch);break}case St:{this.dispatchEvent(new CustomEvent(e.name,{detail:e.data}));break}}}#a(){if(!this.#r||!this.#e)return;this.#t&&this.#t.close();let n={onConnect:()=>{this.#u=!0,this.dispatchEvent(new CustomEvent("lustre:connect"),{detail:{route:this.#r,method:this.#e}})},onMessage:s=>{this.messageReceivedCallback(s)},onClose:()=>{this.#u=!1,this.dispatchEvent(new CustomEvent("lustre:close"),{detail:{route:this.#r,method:this.#e}})}};switch(this.#e){case"ws":this.#t=new je(this.#r,n);break;case"sse":this.#t=new Le(this.#r,n);break;case"polling":this.#t=new Oe(this.#r,n);break}}async#f(){for(;this.#i.length;)this.#i.pop().remove(),this.#n.firstChild.remove();this.#i=await _t(this.#n),this.#s.offset=this.#i.length}},je=class{#n;#e;#r=!1;#t=[];#i;#s;#o;constructor(e,{onConnect:t,onMessage:r,onClose:n}){this.#n=e,this.#e=new WebSocket(this.#n),this.#i=t,this.#s=r,this.#o=n,this.#e.onopen=()=>{this.#i()},this.#e.onmessage=({data:s})=>{try{this.#s(JSON.parse(s))}finally{this.#t.length?this.#e.send(JSON.stringify({kind:X,messages:this.#t})):this.#r=!1,this.#t=[]}},this.#e.onclose=()=>{this.#o()}}send(e){if(this.#r||this.#e.readyState!==WebSocket.OPEN){this.#t.push(e);return}else this.#e.send(JSON.stringify(e)),this.#r=!0}close(){this.#e.close()}},Le=class{#n;#e;#r;#t;#i;constructor(e,{onConnect:t,onMessage:r,onClose:n}){this.#n=e,this.#e=new EventSource(this.#n),this.#r=t,this.#t=r,this.#i=n,this.#e.onopen=()=>{this.#r()},this.#e.onmessage=({data:s})=>{try{this.#t(JSON.parse(s))}catch{}}}send(e){}close(){this.#e.close(),this.#i()}},Oe=class{#n;#e;#r;#t;#i;#s;constructor(e,{onConnect:t,onMessage:r,onClose:n,...s}){this.#n=e,this.#t=t,this.#i=r,this.#s=n,this.#e=s.interval??5e3,this.#o().finally(()=>{this.#t(),this.#r=setInterval(()=>this.#o(),this.#e)})}async send(e){}close(){clearInterval(this.#r),this.#s()}#o(){return fetch(this.#n).then(e=>e.json()).then(this.#i).catch(console.error)}};customElements.define("lustre-server-component",ve);export{ve as ServerComponent};