lustre

-module(lustre@server_component).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([component/1, script/0, route/1, data/1, include/1, subscribe/2, unsubscribe/1, emit/2, set_selector/1, decode_action/1, encode_patch/1]).

-spec component(list(lustre@internals@vdom:attribute(SJP))) -> lustre@internals@vdom:element(SJP).
component(Attrs) ->
    lustre@element:element(<<"lustre-server-component"/utf8>>, Attrs, []).

-spec script() -> lustre@internals@vdom:element(any()).
script() ->
    lustre@element:element(
        <<"script"/utf8>>,
        [lustre@attribute:attribute(<<"type"/utf8>>, <<"module"/utf8>>)],
        [lustre@element:text(
                <<"function k(i,n,r,s=!1){let t,l=[{prev:i,next:n,parent:i.parentNode}];for(;l.length;){let{prev:e,next:o,parent:u}=l.pop();if(o.subtree!==void 0&&(o=o.subtree()),o.content!==void 0)if(e)if(e.nodeType===Node.TEXT_NODE)e.textContent=o.content,t??=e;else{let a=document.createTextNode(o.content);u.replaceChild(a,e),t??=a}else{let a=document.createTextNode(o.content);u.appendChild(a),t??=a}else if(o.tag!==void 0){let a=$({prev:e,next:o,dispatch:r,stack:l,isComponent:s});e?e!==a&&u.replaceChild(a,e):u.appendChild(a),t??=a}}return t}function T(i,n,r){let s=i.parentNode;for(let t of n[0]){let l=t[0].split(\"-\"),e=t[1],o=N(s,l),u;if(o!==null&&o!==s)u=k(o,e,r);else{let a=N(s,l.slice(0,-1)),f=document.createTextNode(\"\");a.appendChild(f),u=k(f,e,r)}l===\"0\"&&(i=u)}for(let t of n[1]){let l=t[0].split(\"-\");N(s,l).remove()}for(let t of n[2]){let l=t[0].split(\"-\"),e=t[1],o=N(s,l),u=v.get(o);for(let a of e[0]){let f=a[0],m=a[1];if(f.startsWith(\"data-lustre-on-\")){let b=f.slice(15),d=r(J);u.has(b)||el.addEventListener(b,y),u.set(b,d),el.setAttribute(f,m)}else o.setAttribute(f,m),o[f]=m}for(let a of e[1])if(a[0].startsWith(\"data-lustre-on-\")){let f=a[0].slice(15);o.removeEventListener(f,y),u.delete(f)}else o.removeAttribute(a[0])}return i}function $({prev:i,next:n,dispatch:r,stack:s}){let t=n.namespace||\"http://www.w3.org/1999/xhtml\",l=i&&i.nodeType===Node.ELEMENT_NODE&&i.localName===n.tag&&i.namespaceURI===(n.namespace||\"http://www.w3.org/1999/xhtml\"),e=l?i:t?document.createElementNS(t,n.tag):document.createElement(n.tag),o;if(v.has(e))o=v.get(e);else{let c=new Map;v.set(e,c),o=c}let u=l?new Set(o.keys()):null,a=l?new Set(Array.from(i.attributes,c=>c.name)):null,f=null,m=null,b=null;for(let c of n.attrs){let h=c[0],p=c[1];if(c[2])e[h]=p;else if(h.startsWith(\"on\")){let g=h.slice(2),A=r(p);o.has(g)||e.addEventListener(g,y),o.set(g,A),l&&u.delete(g)}else if(h.startsWith(\"data-lustre-on-\")){let g=h.slice(15),A=r(J);o.has(g)||e.addEventListener(g,y),o.set(g,A),e.setAttribute(h,p)}else h===\"class\"?f=f===null?p:f+\" \"+p:h===\"style\"?m=m===null?p:m+p:h===\"dangerous-unescaped-html\"?b=p:(e.setAttribute(h,p),e[h]=p,l&&a.delete(h))}if(f!==null&&(e.setAttribute(\"class\",f),l&&a.delete(\"class\")),m!==null&&(e.setAttribute(\"style\",m),l&&a.delete(\"style\")),l){for(let c of a)e.removeAttribute(c);for(let c of u)e.removeEventListener(c,y)}if(n.key!==void 0&&n.key!==\"\")e.setAttribute(\"data-lustre-key\",n.key);else if(b!==null)return e.innerHTML=b,e;let d=i?.firstChild,C=null,w=null,O=null,E=n.children[Symbol.iterator]().next().value;E!==void 0&&E.key!==void 0&&E.key!==\"\"&&(C=new Set,w=L(i),O=L(n));for(let c of n.children)if(c.key!==void 0&&C!==null){for(;d&&!O.has(d.getAttribute(\"data-lustre-key\"));){let p=d.nextSibling;e.removeChild(d),d=p}if(w.size===0){s.unshift({prev:d,next:c,parent:e}),d=d?.nextSibling;continue}if(C.has(c.key)){console.warn(`Duplicate key found in Lustre vnode: ${c.key}`),s.unshift({prev:null,next:c,parent:e});continue}C.add(c.key);let h=w.get(c.key);if(!h&&!d){s.unshift({prev:null,next:c,parent:e});continue}if(!h&&d!==null){let p=document.createTextNode(\"\");e.insertBefore(p,d),s.unshift({prev:p,next:c,parent:e});continue}if(!h||h===d){s.unshift({prev:d,next:c,parent:e}),d=d?.nextSibling;continue}e.insertBefore(h,d),s.unshift({prev:h,next:c,parent:e})}else s.unshift({prev:d,next:c,parent:e}),d=d?.nextSibling;for(;d;){let c=d.nextSibling;e.removeChild(d),d=c}return e}var v=new WeakMap;function y(i){if(!v.has(i.target)){i.target.removeEventListener(i.type,y);return}let n=v.get(i.target);if(!n.has(i.type)){i.target.removeEventListener(i.type,y);return}n.get(i.type)(i)}function J(i){let n=i.target,r=n.getAttribute(`data-lustre-on-${i.type}`),s=JSON.parse(n.getAttribute(\"data-lustre-data\")||\"{}\"),t=JSON.parse(n.getAttribute(\"data-lustre-include\")||\"[]\");switch(i.type){case\"input\":case\"change\":t.push(\"target.value\");break}return{tag:r,data:t.reduce((l,e)=>{let o=e.split(\".\");for(let u=0,a=l,f=i;u<o.length;u++)u===o.length-1?a[o[u]]=f[o[u]]:(a[o[u]]??={},f=f[o[u]],a=a[o[u]]);return l},{data:s})}}function L(i){let n=new Map;if(i)for(let r of i.children){let s=r.key||r?.getAttribute(\"data-lustre-key\");s&&n.set(s,r)}return n}function N(i,n){let r,s,t=i;for(;[r,...s]=n,r!==void 0;)t=t.childNodes.item(r),n=s;return t}var S=class extends HTMLElement{static get observedAttributes(){return[\"route\"]}#n=null;#t=null;#e=null;constructor(){super(),this.#n=new MutationObserver(n=>{let r=[];for(let s of n)if(s.type===\"attributes\"){let{attributeName:t,oldValue:l}=s,e=this.getAttribute(t);if(l!==e)try{r.push([t,JSON.parse(e)])}catch{r.push([t,e])}}r.length&&this.#e?.send(JSON.stringify([5,r]))})}connectedCallback(){this.#t=document.createElement(\"div\"),this.appendChild(this.#t)}attributeChangedCallback(n,r,s){switch(n){case\"route\":if(!s)this.#e?.close(),this.#e=null;else if(r!==s){let t=this.getAttribute(\"id\"),l=s+(t?`?id=${t}`:\"\");this.#e?.close(),this.#e=new WebSocket(`ws://${window.location.host}${l}`),this.#e.addEventListener(\"message\",e=>this.messageReceivedCallback(e))}}}messageReceivedCallback({data:n}){let[r,...s]=JSON.parse(n);switch(r){case 0:return this.diff(s);case 1:return this.emit(s);case 2:return this.init(s)}}init([n,r]){let s=[];for(let t of n)t in this?s.push([t,this[t]]):this.hasAttribute(t)&&s.push([t,this.getAttribute(t)]),Object.defineProperty(this,t,{get(){return this[`_${t}`]??this.getAttribute(t)},set(l){let e=this[t];typeof l==\"string\"?this.setAttribute(t,l):this[`_${t}`]=l,e!==l&&this.#e?.send(JSON.stringify([5,[[t,l]]]))}});this.#n.observe(this,{attributeFilter:n,attributeOldValue:!0,attributes:!0,characterData:!1,characterDataOldValue:!1,childList:!1,subtree:!1}),this.morph(r),s.length&&this.#e?.send(JSON.stringify([5,s]))}morph(n){this.#t=k(this.#t,n,r=>s=>{let t=r(s);this.#e?.send(JSON.stringify([4,t.tag,t.data]))})}diff([n]){this.#t=T(this.#t,n,r=>s=>{let t=r(s);this.#e?.send(JSON.stringify([4,t.tag,t.data]))})}emit([n,r]){this.dispatchEvent(new CustomEvent(n,{detail:r}))}disconnectedCallback(){this.#e?.close()}};window.customElements.define(\"lustre-server-component\",S);export{S as LustreServerComponent};"/utf8>>
            )]
    ).

-spec route(binary()) -> lustre@internals@vdom:attribute(any()).
route(Path) ->
    lustre@attribute:attribute(<<"route"/utf8>>, Path).

-spec data(gleam@json:json()) -> lustre@internals@vdom:attribute(any()).
data(Json) ->
    _pipe = Json,
    _pipe@1 = gleam@json:to_string(_pipe),
    lustre@attribute:attribute(<<"data-lustre-data"/utf8>>, _pipe@1).

-spec include(list(binary())) -> lustre@internals@vdom:attribute(any()).
include(Properties) ->
    _pipe = Properties,
    _pipe@1 = gleam@json:array(_pipe, fun gleam@json:string/1),
    _pipe@2 = gleam@json:to_string(_pipe@1),
    lustre@attribute:attribute(<<"data-lustre-include"/utf8>>, _pipe@2).

-spec subscribe(binary(), fun((lustre@internals@patch:patch(SKC)) -> nil)) -> lustre@internals@runtime:action(SKC, lustre:server_component()).
subscribe(Id, Renderer) ->
    {subscribe, Id, Renderer}.

-spec unsubscribe(binary()) -> lustre@internals@runtime:action(any(), lustre:server_component()).
unsubscribe(Id) ->
    {unsubscribe, Id}.

-spec emit(binary(), gleam@json:json()) -> lustre@effect:effect(any()).
emit(Event, Data) ->
    lustre@effect:event(Event, Data).

-spec do_set_selector(
    gleam@erlang@process:selector(lustre@internals@runtime:action(any(), SKS))
) -> lustre@effect:effect(SKS).
do_set_selector(Sel) ->
    lustre@effect:from(
        fun(_) ->
            Self = gleam@erlang@process:new_subject(),
            gleam@erlang@process:send(Self, {set_selector, Sel})
        end
    ).

-spec set_selector(
    gleam@erlang@process:selector(lustre@internals@runtime:action(any(), SKM))
) -> lustre@effect:effect(SKM).
set_selector(Sel) ->
    do_set_selector(Sel).

-spec decode_event(gleam@dynamic:dynamic_()) -> {ok,
        lustre@internals@runtime:action(any(), any())} |
    {error, list(gleam@dynamic:decode_error())}.
decode_event(Dyn) ->
    gleam@result:'try'(
        (gleam@dynamic:tuple3(
            fun gleam@dynamic:int/1,
            fun gleam@dynamic:dynamic/1,
            fun gleam@dynamic:dynamic/1
        ))(Dyn),
        fun(_use0) ->
            {Kind, Name, Data} = _use0,
            gleam@bool:guard(
                Kind /= 4,
                {error,
                    [{decode_error,
                            gleam@int:to_string(4),
                            gleam@int:to_string(Kind),
                            [<<"0"/utf8>>]}]},
                fun() ->
                    gleam@result:'try'(
                        gleam@dynamic:string(Name),
                        fun(Name@1) -> {ok, {event, Name@1, Data}} end
                    )
                end
            )
        end
    ).

-spec decode_attr(gleam@dynamic:dynamic_()) -> {ok,
        {binary(), gleam@dynamic:dynamic_()}} |
    {error, list(gleam@dynamic:decode_error())}.
decode_attr(Dyn) ->
    (gleam@dynamic:tuple2(
        fun gleam@dynamic:string/1,
        fun gleam@dynamic:dynamic/1
    ))(Dyn).

-spec decode_attrs(gleam@dynamic:dynamic_()) -> {ok,
        lustre@internals@runtime:action(any(), any())} |
    {error, list(gleam@dynamic:decode_error())}.
decode_attrs(Dyn) ->
    gleam@result:'try'(
        (gleam@dynamic:tuple2(
            fun gleam@dynamic:int/1,
            fun gleam@dynamic:dynamic/1
        ))(Dyn),
        fun(_use0) ->
            {Kind, Attrs} = _use0,
            gleam@bool:guard(
                Kind /= 5,
                {error,
                    [{decode_error,
                            gleam@int:to_string(5),
                            gleam@int:to_string(Kind),
                            [<<"0"/utf8>>]}]},
                fun() ->
                    gleam@result:'try'(
                        (gleam@dynamic:list(fun decode_attr/1))(Attrs),
                        fun(Attrs@1) -> {ok, {attrs, Attrs@1}} end
                    )
                end
            )
        end
    ).

-spec decode_action(gleam@dynamic:dynamic_()) -> {ok,
        lustre@internals@runtime:action(any(), lustre:server_component())} |
    {error, list(gleam@dynamic:decode_error())}.
decode_action(Dyn) ->
    (gleam@dynamic:any([fun decode_event/1, fun decode_attrs/1]))(Dyn).

-spec encode_patch(lustre@internals@patch:patch(any())) -> gleam@json:json().
encode_patch(Patch) ->
    lustre@internals@patch:patch_to_json(Patch).