lustre

function A(n,e,o,r=!1){let s,i=[{prev:n,next:e,parent:n.parentNode}];for(;i.length;){let{prev:t,next:a,parent:l}=i.pop();if(a.subtree!==void 0&&(a=a.subtree()),a.content!==void 0)if(t)if(t.nodeType===Node.TEXT_NODE)t.textContent!==a.content&&(t.textContent=a.content),s??=t;else{let c=document.createTextNode(a.content);l.replaceChild(c,t),s??=c}else{let c=document.createTextNode(a.content);l.appendChild(c),s??=c}else if(a.tag!==void 0){let c=D({prev:t,next:a,dispatch:o,stack:i,isComponent:r});t?t!==c&&l.replaceChild(c,t):l.appendChild(c),s??=c}else a.elements!==void 0?w(a,c=>{i.unshift({prev:t,next:c,parent:l}),t=t?.nextSibling}):a.subtree!==void 0&&i.push({prev:t,next:a,parent:l})}return s}function J(n,e,o,r=0){let s=n.parentNode;for(let i of e[0]){let t=i[0].split("-"),a=i[1],l=k(s,t,r),c;if(l!==null&&l!==s)c=A(l,a,o);else{let u=k(s,t.slice(0,-1),r),f=document.createTextNode("");u.appendChild(f),c=A(f,a,o)}t==="0"&&(n=c)}for(let i of e[1]){let 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e.children)w(h,d=>{d.key!==void 0&&N!==null?p=R(p,d,t,r,L,T,N):(r.unshift({prev:p,next:d,parent:t}),p=p?.nextSibling)});for(;p;){let h=p.nextSibling;t.removeChild(p),p=h}return t}var S=new WeakMap;function b(n){let e=n.currentTarget;if(!S.has(e)){e.removeEventListener(n.type,b);return}let o=S.get(e);if(!o.has(n.type)){e.removeEventListener(n.type,b);return}o.get(n.type)(n)}function M(n){let e=n.currentTarget,o=e.getAttribute(`data-lustre-on-${n.type}`),r=JSON.parse(e.getAttribute("data-lustre-data")||"{}"),s=JSON.parse(e.getAttribute("data-lustre-include")||"[]");switch(n.type){case"input":case"change":s.push("target.value");break}return{tag:o,data:s.reduce((i,t)=>{let a=t.split(".");for(let l=0,c=i,u=n;l<a.length;l++)l===a.length-1?c[a[l]]=u[a[l]]:(c[a[l]]??={},u=u[a[l]],c=c[a[l]]);return i},{data:r})}}function C(n){let e=new Map;if(n)for(let o of n.children)w(o,r=>{let s=r?.key||r?.getAttribute?.("data-lustre-key");s&&e.set(s,r)});return e}function k(n,e,o){let r,s,i=n,t=!0;for(;[r,...s]=e,r!==void 0;)i=i.childNodes.item(t?r+o:r),t=!1,e=s;return i}function R(n,e,o,r,s,i,t){for(;n&&!s.has(n.getAttribute("data-lustre-key"));){let l=n.nextSibling;o.removeChild(n),n=l}if(i.size===0)return w(e,l=>{r.unshift({prev:n,next:l,parent:o}),n=n?.nextSibling}),n;if(t.has(e.key))return console.warn(`Duplicate key found in Lustre vnode: ${e.key}`),r.unshift({prev:null,next:e,parent:o}),n;t.add(e.key);let a=i.get(e.key);if(!a&&!n)return r.unshift({prev:null,next:e,parent:o}),n;if(!a&&n!==null){let l=document.createTextNode("");return o.insertBefore(l,n),r.unshift({prev:l,next:e,parent:o}),n}return!a||a===n?(r.unshift({prev:n,next:e,parent:o}),n=n?.nextSibling,n):(o.insertBefore(a,n),r.unshift({prev:a,next:e,parent:o}),n)}function w(n,e){if(n.elements!==void 0)for(let o of n.elements)w(o,e);else n.subtree!==void 0?w(n.subtree(),e):e(n)}var O=class extends HTMLElement{static get observedAttributes(){return["route"]}#i=null;#n=null;#e=null;#t;#s=[];constructor(){super(),this.#t=this.attachShadow({mode:"closed"}),this.#n=document.createElement("div"),this.#i=new MutationObserver(e=>{let o=[];for(let r of e)if(r.type==="attributes"){let{attributeName:s,oldValue:i}=r,t=this.getAttribute(s);if(i!==t)try{o.push([s,JSON.parse(t)])}catch{o.push([s,t])}}o.length&&this.#e?.send(JSON.stringify([5,o]))})}connectedCallback(){this.adoptStyleSheets().finally(()=>{this.#t.append(this.#n)})}attributeChangedCallback(e,o,r){switch(e){case"route":if(!r)this.#e?.close(),this.#e=null;else if(o!==r){let s=this.getAttribute("id"),i=r+(s?`?id=${s}`:""),t=window.location.protocol==="https:"?"wss":"ws";this.#e?.close(),this.#e=new WebSocket(`${t}://${window.location.host}${i}`),this.#e.addEventListener("message",a=>this.messageReceivedCallback(a))}}}messageReceivedCallback({data:e}){let[o,...r]=JSON.parse(e);switch(o){case 0:return this.diff(r);case 1:return this.emit(r);case 2:return this.init(r)}}init([e,o]){let r=[];for(let s of e)s in this?r.push([s,this[s]]):this.hasAttribute(s)&&r.push([s,this.getAttribute(s)]),Object.defineProperty(this,s,{get(){return this[`_${s}`]??this.getAttribute(s)},set(i){let t=this[s];typeof i=="string"?this.setAttribute(s,i):this[`_${s}`]=i,t!==i&&this.#e?.send(JSON.stringify([5,[[s,i]]]))}});this.#i.observe(this,{attributeFilter:e,attributeOldValue:!0,attributes:!0,characterData:!1,characterDataOldValue:!1,childList:!1,subtree:!1}),this.morph(o),r.length&&this.#e?.send(JSON.stringify([5,r]))}morph(e){this.#n=A(this.#n,e,o=>r=>{let s=JSON.parse(this.getAttribute("data-lustre-data")||"{}"),i=o(r);i.data=P(s,i.data),this.#e?.send(JSON.stringify([4,i.tag,i.data]))})}diff([e]){this.#n=J(this.#n,e,o=>r=>{let s=o(r);this.#e?.send(JSON.stringify([4,s.tag,s.data]))},this.#s.length)}emit([e,o]){this.dispatchEvent(new CustomEvent(e,{detail:o}))}disconnectedCallback(){this.#e?.close()}async adoptStyleSheets(){let e=[],o=[...document.styleSheets];for(let s of document.querySelectorAll("link[rel=stylesheet]"))o.includes(s.sheet)||e.push(new Promise((i,t)=>{s.addEventListener("load",i),s.addEventListener("error",t)}));for(await Promise.allSettled(e);this.#s.length;)this.#s.shift().remove();let r=[];this.#t.adoptedStyleSheets=this.getRootNode().adoptedStyleSheets;for(let s of document.styleSheets){try{this.#t.adoptedStyleSheets.push(s);continue}catch{}try{let i=new CSSStyleSheet;for(let t of s.cssRules)i.insertRule(t.cssText);this.#t.adoptedStyleSheets.push(i)}catch{let i=s.ownerNode.cloneNode();this.#t.prepend(i),this.#s.push(i),r.push(new Promise((t,a)=>{i.onload=t,i.onerror=a}))}}return Promise.allSettled(r)}adoptStyleSheet(e){this.#t.adoptedStyleSheets.push(e)}get adoptedStyleSheets(){return this.#t.adoptedStyleSheets}};window.customElements.define("lustre-server-component",O);function P(n,e){for(let o in e)e[o]instanceof Object&&Object.assign(e[o],P(n[o],e[o]));return Object.assign(n||{},e),n}export{O as LustreServerComponent};