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if(n=this.tokenizer.blockquote(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.list(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.html(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.def(e))e=e.substring(n.raw.length),r=t[t.length-1],!r||"paragraph"!==r.type&&"text"!==r.type?this.tokens.links[n.tag]||(this.tokens.links[n.tag]={href:n.href,title:n.title}):(r.raw+="\n"+n.raw,r.text+="\n"+n.raw,this.inlineQueue[this.inlineQueue.length-1].src=r.text);else if(n=this.tokenizer.table(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.lheading(e))e=e.substring(n.raw.length),t.push(n);else{if(i=e,this.options.extensions&&this.options.extensions.startBlock){let t=Infinity;const n=e.slice(1);let r;this.options.extensions.startBlock.forEach(e=>{r=e.call({lexer:this},n),"number"==typeof r&&r>=0&&(t=Math.min(t,r))}),t<Infinity&&t>=0&&(i=e.substring(0,t+1))}if(this.state.top&&(n=this.tokenizer.paragraph(i)))r=t[t.length-1],o&&"paragraph"===r.type?(r.raw+="\n"+n.raw,r.text+="\n"+n.text,this.inlineQueue.pop(),this.inlineQueue[this.inlineQueue.length-1].src=r.text):t.push(n),o=i.length!==e.length,e=e.substring(n.raw.length);else if(n=this.tokenizer.text(e))e=e.substring(n.raw.length),r=t[t.length-1],r&&"text"===r.type?(r.raw+="\n"+n.raw,r.text+="\n"+n.text,this.inlineQueue.pop(),this.inlineQueue[this.inlineQueue.length-1].src=r.text):t.push(n);else if(e){const t="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(t);break}throw new Error(t)}}return this.state.top=!0,t}inline(e,t=[]){return this.inlineQueue.push({src:e,tokens:t}),t}inlineTokens(e,t=[]){let n,r,i,o,a,s,l=e;if(this.tokens.links){const e=Object.keys(this.tokens.links);if(e.length>0)for(;null!=(o=this.tokenizer.rules.inline.reflinkSearch.exec(l));)e.includes(o[0].slice(o[0].lastIndexOf("[")+1,-1))&&(l=l.slice(0,o.index)+"["+"a".repeat(o[0].length-2)+"]"+l.slice(this.tokenizer.rules.inline.reflinkSearch.lastIndex))}for(;null!=(o=this.tokenizer.rules.inline.blockSkip.exec(l));)l=l.slice(0,o.index)+"["+"a".repeat(o[0].length-2)+"]"+l.slice(this.tokenizer.rules.inline.blockSkip.lastIndex);for(;null!=(o=this.tokenizer.rules.inline.anyPunctuation.exec(l));)l=l.slice(0,o.index)+"++"+l.slice(this.tokenizer.rules.inline.anyPunctuation.lastIndex);for(;e;)if(a||(s=""),a=!1,!(this.options.extensions&&this.options.extensions.inline&&this.options.extensions.inline.some(r=>!!(n=r.call({lexer:this},e,t))&&(e=e.substring(n.raw.length),t.push(n),!0))))if(n=this.tokenizer.escape(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.tag(e))e=e.substring(n.raw.length),r=t[t.length-1],r&&"text"===n.type&&"text"===r.type?(r.raw+=n.raw,r.text+=n.text):t.push(n);else if(n=this.tokenizer.link(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.reflink(e,this.tokens.links))e=e.substring(n.raw.length),r=t[t.length-1],r&&"text"===n.type&&"text"===r.type?(r.raw+=n.raw,r.text+=n.text):t.push(n);else if(n=this.tokenizer.emStrong(e,l,s))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.codespan(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.br(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.del(e))e=e.substring(n.raw.length),t.push(n);else if(n=this.tokenizer.autolink(e))e=e.substring(n.raw.length),t.push(n);else if(this.state.inLink||!(n=this.tokenizer.url(e))){if(i=e,this.options.extensions&&this.options.extensions.startInline){let t=Infinity;const n=e.slice(1);let r;this.options.extensions.startInline.forEach(e=>{r=e.call({lexer:this},n),"number"==typeof r&&r>=0&&(t=Math.min(t,r))}),t<Infinity&&t>=0&&(i=e.substring(0,t+1))}if(n=this.tokenizer.inlineText(i))e=e.substring(n.raw.length),"_"!==n.raw.slice(-1)&&(s=n.raw.slice(-1)),a=!0,r=t[t.length-1],r&&"text"===r.type?(r.raw+=n.raw,r.text+=n.text):t.push(n);else if(e){const t="Infinite loop on byte: "+e.charCodeAt(0);if(this.options.silent){console.error(t);break}throw new Error(t)}}else e=e.substring(n.raw.length),t.push(n);return t}}class Oe{options;constructor(e){this.options=e||z}code(e,t,n){const r=(t||"").match(/^\S*/)?.[0];return e=e.replace(/\n$/,"")+"\n",r?'<pre><code class="language-'+B(r)+'">'+(n?e:B(e,!0))+"</code></pre>\n":"<pre><code>"+(n?e:B(e,!0))+"</code></pre>\n"}blockquote(e){return`<blockquote>\n${e}</blockquote>\n`}html(e,t){return e}heading(e,t,n){return`<h${t}>${e}</h${t}>\n`}hr(){return"<hr>\n"}list(e,t,n){const r=t?"ol":"ul";return"<"+r+(t&&1!==n?' start="'+n+'"':"")+">\n"+e+"</"+r+">\n"}listitem(e,t,n){return`<li>${e}</li>\n`}checkbox(e){return"<input "+(e?'checked="" ':"")+'disabled="" type="checkbox">'}paragraph(e){return`<p>${e}</p>\n`}table(e,t){return t&&(t=`<tbody>${t}</tbody>`),"<table>\n<thead>\n"+e+"</thead>\n"+t+"</table>\n"}tablerow(e){return`<tr>\n${e}</tr>\n`}tablecell(e,t){const n=t.header?"th":"td";return(t.align?`<${n} align="${t.align}">`:`<${n}>`)+e+`</${n}>\n`}strong(e){return`<strong>${e}</strong>`}em(e){return`<em>${e}</em>`}codespan(e){return`<code>${e}</code>`}br(){return"<br>"}del(e){return`<del>${e}</del>`}link(e,t,n){const r=H(e);if(null===r)return n;let i='<a href="'+(e=r)+'"';return t&&(i+=' title="'+t+'"'),i+=">"+n+"</a>",i}image(e,t,n){const r=H(e);if(null===r)return n;let i=`<img src="${e=r}" alt="${n}"`;return t&&(i+=` title="${t}"`),i+=">",i}text(e){return e}}class Ie{strong(e){return e}em(e){return e}codespan(e){return e}del(e){return e}html(e){return e}text(e){return e}link(e,t,n){return""+n}image(e,t,n){return""+n}br(){return""}}class Ne{options;renderer;textRenderer;constructor(e){this.options=e||z,this.options.renderer=this.options.renderer||new Oe,this.renderer=this.options.renderer,this.renderer.options=this.options,this.textRenderer=new Ie}static parse(e,t){return new Ne(t).parse(e)}static parseInline(e,t){return new Ne(t).parseInline(e)}parse(e,t=!0){let n="";for(let r=0;r<e.length;r++){const i=e[r];if(this.options.extensions&&this.options.extensions.renderers&&this.options.extensions.renderers[i.type]){const e=i,t=this.options.extensions.renderers[e.type].call({parser:this},e);if(!1!==t||!["space","hr","heading","code","table","blockquote","list","html","paragraph","text"].includes(e.type)){n+=t||"";continue}}switch(i.type){case"space":continue;case"hr":n+=this.renderer.hr();continue;case"heading":{const e=i;n+=this.renderer.heading(this.parseInline(e.tokens),e.depth,q(this.parseInline(e.tokens,this.textRenderer)));continue}case"code":n+=this.renderer.code(i.text,i.lang,!!i.escaped);continue;case"table":{const e=i;let t="",r="";for(let t=0;t<e.header.length;t++)r+=this.renderer.tablecell(this.parseInline(e.header[t].tokens),{header:!0,align:e.align[t]});t+=this.renderer.tablerow(r);let o="";for(let t=0;t<e.rows.length;t++){const n=e.rows[t];r="";for(let t=0;t<n.length;t++)r+=this.renderer.tablecell(this.parseInline(n[t].tokens),{header:!1,align:e.align[t]});o+=this.renderer.tablerow(r)}n+=this.renderer.table(t,o);continue}case"blockquote":{const e=this.parse(i.tokens);n+=this.renderer.blockquote(e);continue}case"list":{const e=i,t=e.ordered,r=e.start,o=e.loose;let a="";for(let t=0;t<e.items.length;t++){const n=e.items[t],r=n.checked,i=n.task;let s="";if(n.task){const e=this.renderer.checkbox(!!r);o?n.tokens.length>0&&"paragraph"===n.tokens[0].type?(n.tokens[0].text=e+" "+n.tokens[0].text,n.tokens[0].tokens&&n.tokens[0].tokens.length>0&&"text"===n.tokens[0].tokens[0].type&&(n.tokens[0].tokens[0].text=e+" "+n.tokens[0].tokens[0].text)):n.tokens.unshift({type:"text",text:e+" "}):s+=e+" "}s+=this.parse(n.tokens,o),a+=this.renderer.listitem(s,i,!!r)}n+=this.renderer.list(a,t,r);continue}case"html":n+=this.renderer.html(i.text,i.block);continue;case"paragraph":n+=this.renderer.paragraph(this.parseInline(i.tokens));continue;case"text":{let o=i,a=o.tokens?this.parseInline(o.tokens):o.text;for(;r+1<e.length&&"text"===e[r+1].type;)o=e[++r],a+="\n"+(o.tokens?this.parseInline(o.tokens):o.text);n+=t?this.renderer.paragraph(a):a;continue}default:{const e='Token with "'+i.type+'" type was not found.';if(this.options.silent)return console.error(e),"";throw new Error(e)}}}return n}parseInline(e,t){t=t||this.renderer;let n="";for(let r=0;r<e.length;r++){const i=e[r];if(this.options.extensions&&this.options.extensions.renderers&&this.options.extensions.renderers[i.type]){const e=this.options.extensions.renderers[i.type].call({parser:this},i);if(!1!==e||!["escape","html","link","image","strong","em","codespan","br","del","text"].includes(i.type)){n+=e||"";continue}}switch(i.type){case"escape":case"text":n+=t.text(i.text);break;case"html":n+=t.html(i.text);break;case"link":n+=t.link(i.href,i.title,this.parseInline(i.tokens,t));break;case"image":n+=t.image(i.href,i.title,i.text);break;case"strong":n+=t.strong(this.parseInline(i.tokens,t));break;case"em":n+=t.em(this.parseInline(i.tokens,t));break;case"codespan":n+=t.codespan(i.text);break;case"br":n+=t.br();break;case"del":n+=t.del(this.parseInline(i.tokens,t));break;default:{const e='Token with "'+i.type+'" type was not found.';if(this.options.silent)return console.error(e),"";throw new Error(e)}}}return n}}class Pe{options;constructor(e){this.options=e||z}static passThroughHooks=new Set(["preprocess","postprocess","processAllTokens"]);preprocess(e){return e}postprocess(e){return e}processAllTokens(e){return e}}const De=new class{defaults={async:!1,breaks:!1,extensions:null,gfm:!0,hooks:null,pedantic:!1,renderer:null,silent:!1,tokenizer:null,walkTokens:null};options=this.setOptions;parse=this.#e(Le.lex,Ne.parse);parseInline=this.#e(Le.lexInline,Ne.parseInline);Parser=Ne;Renderer=Oe;TextRenderer=Ie;Lexer=Le;Tokenizer=K;Hooks=Pe;constructor(...e){this.use(...e)}walkTokens(e,t){let n=[];for(const r of e)switch(n=n.concat(t.call(this,r)),r.type){case"table":{const e=r;for(const r of e.header)n=n.concat(this.walkTokens(r.tokens,t));for(const r of e.rows)for(const e of r)n=n.concat(this.walkTokens(e.tokens,t));break}case"list":n=n.concat(this.walkTokens(r.items,t));break;default:{const e=r;this.defaults.extensions?.childTokens?.[e.type]?this.defaults.extensions.childTokens[e.type].forEach(r=>{const i=e[r].flat(Infinity);n=n.concat(this.walkTokens(i,t))}):e.tokens&&(n=n.concat(this.walkTokens(e.tokens,t)))}}return n}use(...e){const t=this.defaults.extensions||{renderers:{},childTokens:{}};return e.forEach(e=>{const n={...e};if(n.async=this.defaults.async||n.async||!1,e.extensions&&(e.extensions.forEach(e=>{if(!e.name)throw new Error("extension name required");if("renderer"in e){const n=t.renderers[e.name];t.renderers[e.name]=n?function(...t){let r=e.renderer.apply(this,t);return!1===r&&(r=n.apply(this,t)),r}:e.renderer}if("tokenizer"in e){if(!e.level||"block"!==e.level&&"inline"!==e.level)throw new Error("extension level must be 'block' or 'inline'");const n=t[e.level];n?n.unshift(e.tokenizer):t[e.level]=[e.tokenizer],e.start&&("block"===e.level?t.startBlock?t.startBlock.push(e.start):t.startBlock=[e.start]:"inline"===e.level&&(t.startInline?t.startInline.push(e.start):t.startInline=[e.start]))}"childTokens"in e&&e.childTokens&&(t.childTokens[e.name]=e.childTokens)}),n.extensions=t),e.renderer){const t=this.defaults.renderer||new Oe(this.defaults);for(const n in e.renderer){if(!(n in t))throw new Error(`renderer '${n}' does not exist`);if("options"===n)continue;const r=e.renderer[n],i=t[n];t[n]=(...e)=>{let n=r.apply(t,e);return!1===n&&(n=i.apply(t,e)),n||""}}n.renderer=t}if(e.tokenizer){const t=this.defaults.tokenizer||new K(this.defaults);for(const n in e.tokenizer){if(!(n in t))throw new Error(`tokenizer '${n}' does not exist`);if(["options","rules","lexer"].includes(n))continue;const r=e.tokenizer[n],i=t[n];t[n]=(...e)=>{let n=r.apply(t,e);return!1===n&&(n=i.apply(t,e)),n}}n.tokenizer=t}if(e.hooks){const t=this.defaults.hooks||new Pe;for(const n in e.hooks){if(!(n in t))throw new Error(`hook '${n}' does not exist`);if("options"===n)continue;const r=e.hooks[n],i=t[n];t[n]=Pe.passThroughHooks.has(n)?e=>{if(this.defaults.async)return Promise.resolve(r.call(t,e)).then(e=>i.call(t,e));const n=r.call(t,e);return i.call(t,n)}:(...e)=>{let n=r.apply(t,e);return!1===n&&(n=i.apply(t,e)),n}}n.hooks=t}if(e.walkTokens){const t=this.defaults.walkTokens,r=e.walkTokens;n.walkTokens=function(e){let n=[];return n.push(r.call(this,e)),t&&(n=n.concat(t.call(this,e))),n}}this.defaults={...this.defaults,...n}}),this}setOptions(e){return this.defaults={...this.defaults,...e},this}lexer(e,t){return Le.lex(e,t??this.defaults)}parser(e,t){return Ne.parse(e,t??this.defaults)}#e(e,t){return(n,r)=>{const i={...r},o={...this.defaults,...i};!0===this.defaults.async&&!1===i.async&&(o.silent||console.warn("marked(): The async option was set to true by an extension. The async: false option sent to parse will be ignored."),o.async=!0);const a=this.#t(!!o.silent,!!o.async);if(null==n)return a(new Error("marked(): input parameter is undefined or null"));if("string"!=typeof n)return a(new Error("marked(): input parameter is of type "+Object.prototype.toString.call(n)+", string expected"));if(o.hooks&&(o.hooks.options=o),o.async)return Promise.resolve(o.hooks?o.hooks.preprocess(n):n).then(t=>e(t,o)).then(e=>o.hooks?o.hooks.processAllTokens(e):e).then(e=>o.walkTokens?Promise.all(this.walkTokens(e,o.walkTokens)).then(()=>e):e).then(e=>t(e,o)).then(e=>o.hooks?o.hooks.postprocess(e):e).catch(a);try{o.hooks&&(n=o.hooks.preprocess(n));let r=e(n,o);o.hooks&&(r=o.hooks.processAllTokens(r)),o.walkTokens&&this.walkTokens(r,o.walkTokens);let i=t(r,o);return o.hooks&&(i=o.hooks.postprocess(i)),i}catch(e){return a(e)}}}#t(e,t){return n=>{if(n.message+="\nPlease report this to https://github.com/markedjs/marked.",e){const e="<p>An error 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e;u.forEach(e=>{i&&e.removeEventListener("scroll",n),o&&e.removeEventListener("resize",n)}),null==h||h(),null==(e=p)||e.disconnect(),p=null,l&&cancelAnimationFrame(d)}}(n,Qt,()=>{Bt(n,Qt,{placement:"top-start",middleware:[Ft(),Dt({crossAxis:!0,padding:8})],strategy:"fixed"}).then(({x:e,y:t})=>{Object.assign(Qt.style,{left:`${e}px`,top:t-10+"px"})})}),Xt.activate(),Gt.closeOnOutsideClick&&document.getElementById(jt).addEventListener("click",en),document.getElementById("langchat-chat-widget__form").addEventListener("submit",an)}function en(){Xt.deactivate(),Qt.innerHTML="",Qt.remove(),Ut.remove(),Vt(),Vt=()=>{}}async function tn(e,t,n){const r=document.createElement("div");r.classList.add("langchat-chat-widget__message"),r.classList.add(`langchat-chat-widget__message--${n}`),r.id=`langchat-chat-widget__message--${n}--${t}`;const i=document.createElement("p");i.innerHTML=await Fe(e,{renderer:Zt}),r.appendChild(i);const o=document.createElement("p");o.classList.add("langchat-chat-widget__message-timestamp"),o.textContent=("0"+new Date(t).getHours()).slice(-2)+":"+("0"+new Date(t).getMinutes()).slice(-2),r.appendChild(o),Kt.prepend(r)}const nn=async e=>{if(e.ok){var t,n;const{message:r,threadId:i}=await e.json();if("string"!=typeof i)return console.error("LangChat Chat Widget: Server error",e),void(Gt.disableErrorAlert||alert(`Received an OK response but "threadId" was of incompatible type (expected 'string', received '${typeof i}'). 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Please make sure the API response is configured correctly."));const r=e.headers.get("x-thread-id");let i="",o=!1,a=Date.now();const s=e.body.getReader();for(;;){const{value:e,done:t}=await s.read();if(t||void 0===e)break;const n=(new TextDecoder).decode(e,{stream:!0}).split("\n");for(const e of n){const t=e;if(t.startsWith("data:{")||t.startsWith("{")){let e="";t.startsWith("data:{")&&(e=t.slice(5).trim()),t.startsWith("{")&&(e=t.trim());try{const t=JSON.parse(e).choices[0];if("STOP"===t.finishReason)return void(o=!0);i+=t.delta.content}catch(e){o=!0,console.error("Failed to parse JSON:",e)}}}await rn(i,a,"system")}Gt.threadId=null!=(t=null!=(n=Gt.threadId)?n:r)?t:null};async function an(t){t.preventDefault();const n=t.target;if(!Gt.url)return console.error("LangChat Chat Widget: No URL provided"),void(Gt.disableErrorAlert||alert("Could not send chat message: No URL provided"));const r=document.getElementById("langchat-chat-widget__submit");r.setAttribute("disabled","");const i=new Headers;i.append("Content-Type","application/json"),i.append("Accept","text/event-stream"),i.append("Authorization",`Bearer ${Gt.apiKey}`);const o=n.elements.message.value,a=e({},Gt.user,{messages:[{role:"user",content:o}],threadId:Gt.threadId,timestamp:Date.now()});await tn(o,a.timestamp,"user"),n.reset(),Kt.prepend(Yt);try{let e=await fetch(Gt.url,{method:"POST",headers:i,body:JSON.stringify(a)});Yt.remove(),Gt.responseIsAStream?await on(e):await nn(e)}catch(t){Yt.remove(),console.error("LangChat Chat Widget:",t),Gt.disableErrorAlert||alert(`Could not send message: ${t.message}`)}return r.removeAttribute("disabled"),!1}const sn={open:Jt,close:en,config:Gt,init:Wt};window.langchatChatWidget=sn;export{sn as default};
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