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"use client"
import { useEffect , useRef , useState } from "react"
import { wrapWithMxFile } from "@/lib/utils"
// Dev XML presets for streaming simulator
const DEV_XML_PRESETS : Record < string , string > = {
"Simple Box" : ` <mxCell id="2" value="Hello World" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex="1" parent="1">
< mxGeometry x = "120" y = "100" width = "120" height = "60" as = "geometry" / >
< / mxCell > ` ,
"Two Boxes with Arrow" : ` <mxCell id="2" value="Start" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex="1" parent="1">
< mxGeometry x = "100" y = "100" width = "100" height = "50" as = "geometry" / >
< / mxCell >
< mxCell id = "3" value = "End" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#f8cecc;strokeColor=#b85450;" vertex = "1" parent = "1" >
< mxGeometry x = "300" y = "100" width = "100" height = "50" as = "geometry" / >
< / mxCell >
< mxCell id = "4" value = "" style = "endArrow=classic;html=1;" edge = "1" parent = "1" source = "2" target = "3" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell > ` ,
Flowchart : ` <mxCell id="2" value="Start" style="ellipse;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex="1" parent="1">
< mxGeometry x = "160" y = "40" width = "80" height = "40" as = "geometry" / >
< / mxCell >
< mxCell id = "3" value = "Process A" style = "rounded=0;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex = "1" parent = "1" >
< mxGeometry x = "140" y = "120" width = "120" height = "60" as = "geometry" / >
< / mxCell >
< mxCell id = "4" value = "Decision" style = "rhombus;whiteSpace=wrap;html=1;fillColor=#fff2cc;strokeColor=#d6b656;" vertex = "1" parent = "1" >
< mxGeometry x = "150" y = "220" width = "100" height = "80" as = "geometry" / >
< / mxCell >
< mxCell id = "5" value = "Process B" style = "rounded=0;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex = "1" parent = "1" >
< mxGeometry x = "300" y = "230" width = "120" height = "60" as = "geometry" / >
< / mxCell >
< mxCell id = "6" value = "End" style = "ellipse;whiteSpace=wrap;html=1;fillColor=#f8cecc;strokeColor=#b85450;" vertex = "1" parent = "1" >
< mxGeometry x = "160" y = "340" width = "80" height = "40" as = "geometry" / >
< / mxCell >
< mxCell id = "7" style = "endArrow=classic;html=1;" edge = "1" parent = "1" source = "2" target = "3" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "8" style = "endArrow=classic;html=1;" edge = "1" parent = "1" source = "3" target = "4" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "9" value = "Yes" style = "endArrow=classic;html=1;" edge = "1" parent = "1" source = "4" target = "6" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "10" value = "No" style = "endArrow=classic;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;" edge = "1" parent = "1" source = "4" target = "5" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell > ` ,
"Truncated (Error Test)" : ` <mxCell id="2" value="This cell is truncated" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex="1" parent="1">
< mxGeometry x = "120" y = "100" width = "120" height = "60" as = "geometry" / >
< / mxCell >
< mxCell id = "3" value = "Incomplete" style = " rounded = 1 ; whiteSpace = wrap ; html = 1 ; fillColor = # f8cecc ; strokeColor ` ,
"HTML Escape + Cell Truncate" : ` <mxCell id="2" value="<b>Chain-of-Thought Prompting</b><br/><font size='12'>Eliciting Reasoning in Large Language Models</font>" style="rounded=0;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;fontSize=16;fontStyle=1;" vertex="1" parent="1">
< mxGeometry x = "40" y = "40" width = "720" height = "60" as = "geometry" / >
< / mxCell >
< mxCell id = "3" value = "<b>Problem: LLM Reasoning Limitations</b><br/>• Scaling parameters alone insufficient for logical tasks<br/>• Arithmetic, commonsense, symbolic reasoning challenges<br/>• Standard prompting fails on multi-step problems" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex = "1" parent = "1" >
< mxGeometry x = "40" y = "120" width = "340" height = "120" as = "geometry" / >
< / mxCell >
< mxCell id = "4" value = "<b>Traditional Approaches</b><br/>1. <b>Finetuning:</b> Expensive, task-specific<br/>2. <b>Standard Few-Shot:</b> Input→Output pairs<br/> (No explanation of reasoning)" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#fff2cc;strokeColor=#d6b656;" vertex = "1" parent = "1" >
< mxGeometry x = "420" y = "120" width = "340" height = "120" as = "geometry" / >
< / mxCell >
< mxCell id = "5" value = "<b>CoT Methodology</b><br/>• Add reasoning steps to few-shot examples<br/>• Natural language intermediate steps<br/>• No parameter updates needed<br/>• Model learns to generate own thought process" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex = "1" parent = "1" >
< mxGeometry x = "40" y = "260" width = "340" height = "100" as = "geometry" / >
< / mxCell >
< mxCell id = "6" value = "<b>Example Comparison</b><br/><b>Standard:</b><br/>Q: Roger has 5 balls. He buys 2 cans of 3 balls. How many?<br/>A: 11.<br/><br/><b>CoT:</b><br/>Q: Roger has 5 balls. He buys 2 cans of 3 balls. How many?<br/>A: Roger started with 5 balls. 2 cans of 3 tennis balls each is 6 tennis balls. 5 + 6 = 11. The answer is 11." style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#e1d5e7;strokeColor=#9673a6;" vertex = "1" parent = "1" >
< mxGeometry x = "420" y = "260" width = "340" height = "140" as = "geometry" / >
< / mxCell >
< mxCell id = "7" value = "<b>Experimental Models</b><br/>• GPT-3 (175B)<br/>• LaMDA (137B)<br/>• PaLM (540B)<br/>• UL2 (20B)<br/>• Codex" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#f8cecc;strokeColor=#b85450;" vertex = "1" parent = "1" >
< mxGeometry x = "40" y = "380" width = "340" height = "100" as = "geometry" / >
< / mxCell >
< mxCell id = "8" value = "<b>Reasoning Domains Tested</b><br/>1. <b>Arithmetic:</b> GSM8K, SVAMP, ASDiv, AQuA, MAWPS<br/>2. <b>Commonsense:</b> CSQA, StrategyQA, Date Understanding, Sports Understanding<br/>3. <b>Symbolic:</b> Last Letter Concatenation, Coin Flip" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#f5f5f5;strokeColor=#666666;" vertex = "1" parent = "1" >
< mxGeometry x = "420" y = "420" width = "340" height = "100" as = "geometry" / >
< / mxCell >
< mxCell id = "9" value = "<b>Key Results: Arithmetic</b><br/>• PaLM 540B + CoT: <b>56.9%</b> on GSM8K<br/> (vs 17.9% standard)<br/>• Surpassed finetuned GPT-3 (55%)<br/>• With calculator: <b>58.6%</b>" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex = "1" parent = "1" >
< mxGeometry x = "40" y = "500" width = "220" height = "100" as = "geometry" / >
< / mxCell >
< mxCell id = "10" value = "<b>Key Results: Commonsense</b><br/>• StrategyQA: <b>75.6%</b><br/> (vs 69.4% SOTA)<br/>• Sports Understanding: <b>95.4%</b><br/> (vs 84% human)" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex = "1" parent = "1" >
< mxGeometry x = "280" y = "500" width = "220" height = "100" as = "geometry" / >
< / mxCell >
< mxCell id = "11" value = "<b>Key Results: Symbolic</b><br/>• OOD Generalization<br/>• Coin Flip: Trained on 2 flips<br/> Works on 3-4 flips with CoT<br/>• Standard prompting fails" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" vertex = "1" parent = "1" >
< mxGeometry x = "540" y = "500" width = "220" height = "100" as = "geometry" / >
< / mxCell >
< mxCell id = "12" value = "<b>Emergent Ability of Scale</b><br/>• Small models (<10B): No benefit, often harmful<br/>• Large models (100B+): Reasoning emerges<br/>• CoT gains increase dramatically with scale" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#ffe6cc;strokeColor=#d79b00;" vertex = "1" parent = "1" >
< mxGeometry x = "40" y = "620" width = "340" height = "80" as = "geometry" / >
< / mxCell >
< mxCell id = "13" value = "<b>Ablation Studies</b><br/>1. Equation only: Worse than CoT<br/>2. Variable compute (...): No improvement<br/>3. Answer first, then reasoning: Same as baseline<br/>→ Content matters, not just extra tokens" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#fff2cc;strokeColor=#d6b656;" vertex = "1" parent = "1" >
< mxGeometry x = "420" y = "620" width = "340" height = "80" as = "geometry" / >
< / mxCell >
< mxCell id = "14" value = "<b>Error Analysis</b><br/>• Semantic understanding errors<br/>• One-step missing errors<br/>• Calculation errors<br/>• Larger models reduce semantic/missing-step errors" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#f8cecc;strokeColor=#b85450;" vertex = "1" parent = "1" >
< mxGeometry x = "40" y = "720" width = "340" height = "80" as = "geometry" / >
< / mxCell >
< mxCell id = "15" value = "<b>Conclusion</b><br/>• CoT unlocks reasoning potential<br/>• Simple paradigm: "show your work"<br/>• Emergent capability of large models<br/>• No specialized architecture needed" style = "rounded=1;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" vertex = "1" parent = "1" >
< mxGeometry x = "420" y = "720" width = "340" height = "80" as = "geometry" / >
< / mxCell >
< mxCell id = "16" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "3" target = "5" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "17" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "4" target = "6" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "18" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "5" target = "7" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "19" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "6" target = "8" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "20" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.25;entryY=0;" edge = "1" parent = "1" source = "7" target = "9" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "21" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "7" target = "10" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "22" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.75;entryY=0;" edge = "1" parent = "1" source = "7" target = "11" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "23" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "9" target = "12" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "24" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "10" target = "13" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "25" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "11" target = "14" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "26" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "12" target = "15" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "27" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "13" target = "15" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell >
< mxCell id = "28" style = "edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=0.5;exitY=1;entryX=0.5;entryY=0;" edge = "1" parent = "1" source = "14" target = "15" >
< mxGeometry relative = "1" as = "geometry" / >
< / mxCell > ` ,
}
interface DevXmlSimulatorProps {
setMessages : React.Dispatch < React.SetStateAction < any [ ] > >
onDisplayChart : ( xml : string ) = > void
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onShowQuotaToast ? : ( ) = > void
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}
export function DevXmlSimulator ( {
setMessages ,
onDisplayChart ,
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onShowQuotaToast ,
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} : DevXmlSimulatorProps ) {
const [ devXml , setDevXml ] = useState ( "" )
const [ isSimulating , setIsSimulating ] = useState ( false )
const [ devIntervalMs , setDevIntervalMs ] = useState ( 1 )
const [ devChunkSize , setDevChunkSize ] = useState ( 10 )
const devStopRef = useRef ( false )
const devXmlInitializedRef = useRef ( false )
// Restore dev XML from localStorage on mount (after hydration)
useEffect ( ( ) = > {
const saved = localStorage . getItem ( "dev-xml-simulator" )
if ( saved ) setDevXml ( saved )
devXmlInitializedRef . current = true
} , [ ] )
// Save dev XML to localStorage (only after initial load)
useEffect ( ( ) = > {
if ( devXmlInitializedRef . current ) {
localStorage . setItem ( "dev-xml-simulator" , devXml )
}
} , [ devXml ] )
const handleDevSimulate = async ( ) = > {
if ( ! devXml . trim ( ) || isSimulating ) return
setIsSimulating ( true )
devStopRef . current = false
const toolCallId = ` dev-sim- ${ Date . now ( ) } `
const xml = devXml . trim ( )
// Add user message and initial assistant message with empty XML
const userMsg = {
id : ` user- ${ Date . now ( ) } ` ,
role : "user" as const ,
parts : [
{
type : "text" as const ,
text : "[Dev] Simulating XML streaming" ,
} ,
] ,
}
const assistantMsg = {
id : ` assistant- ${ Date . now ( ) } ` ,
role : "assistant" as const ,
parts : [
{
type : "tool-display_diagram" as const ,
toolCallId ,
state : "input-streaming" as const ,
input : { xml : "" } ,
} ,
] ,
}
setMessages ( ( prev ) = > [ . . . prev , userMsg , assistantMsg ] as any )
// Stream characters progressively
for ( let i = 0 ; i < xml . length ; i += devChunkSize ) {
if ( devStopRef . current ) {
setIsSimulating ( false )
return
}
const chunk = xml . slice ( 0 , i + devChunkSize )
setMessages ( ( prev ) = > {
const updated = [ . . . prev ]
const lastMsg = updated [ updated . length - 1 ] as any
if ( lastMsg ? . role === "assistant" && lastMsg . parts ? . [ 0 ] ) {
lastMsg . parts [ 0 ] . input = { xml : chunk }
}
return updated
} )
await new Promise ( ( r ) = > setTimeout ( r , devIntervalMs ) )
}
if ( devStopRef . current ) {
setIsSimulating ( false )
return
}
// Finalize: set state to output-available
setMessages ( ( prev ) = > {
const updated = [ . . . prev ]
const lastMsg = updated [ updated . length - 1 ] as any
if ( lastMsg ? . role === "assistant" && lastMsg . parts ? . [ 0 ] ) {
lastMsg . parts [ 0 ] . state = "output-available"
lastMsg . parts [ 0 ] . output = "Successfully displayed the diagram."
lastMsg . parts [ 0 ] . input = { xml }
}
return updated
} )
// Display the final diagram
const fullXml = wrapWithMxFile ( xml )
onDisplayChart ( fullXml )
setIsSimulating ( false )
}
return (
< div className = "border-t border-dashed border-orange-500/50 px-4 py-2 bg-orange-50/50 dark:bg-orange-950/30" >
< details >
< summary className = "text-xs text-orange-600 dark:text-orange-400 cursor-pointer font-medium" >
Dev : XML Streaming Simulator
< / summary >
< div className = "mt-2 space-y-2" >
< div className = "flex items-center gap-2" >
< label className = "text-xs text-muted-foreground whitespace-nowrap" >
Preset :
< / label >
< select
onChange = { ( e ) = > {
if ( e . target . value ) {
setDevXml ( DEV_XML_PRESETS [ e . target . value ] )
}
} }
className = "flex-1 text-xs p-1 border rounded bg-background"
defaultValue = ""
>
< option value = "" disabled >
Select a preset . . .
< / option >
{ Object . keys ( DEV_XML_PRESETS ) . map ( ( name ) = > (
< option key = { name } value = { name } >
{ name }
< / option >
) ) }
< / select >
< button
type = "button"
onClick = { ( ) = > setDevXml ( "" ) }
className = "px-2 py-1 text-xs text-muted-foreground hover:text-foreground border rounded"
>
Clear
< / button >
< / div >
< textarea
value = { devXml }
onChange = { ( e ) = > setDevXml ( e . target . value ) }
placeholder = "Paste mxCell XML here or select a preset..."
className = "w-full h-24 text-xs font-mono p-2 border rounded bg-background"
/ >
< div className = "flex items-center gap-4" >
< div className = "flex items-center gap-2 flex-1" >
< label className = "text-xs text-muted-foreground whitespace-nowrap" >
Interval :
< / label >
< input
type = "range"
min = "1"
max = "200"
step = "1"
value = { devIntervalMs }
onChange = { ( e ) = >
setDevIntervalMs ( Number ( e . target . value ) )
}
className = "flex-1 h-1 accent-orange-500"
/ >
< span className = "text-xs text-muted-foreground w-12" >
{ devIntervalMs } ms
< / span >
< / div >
< div className = "flex items-center gap-2" >
< label className = "text-xs text-muted-foreground whitespace-nowrap" >
Chars :
< / label >
< input
type = "number"
min = "1"
max = "100"
value = { devChunkSize }
onChange = { ( e ) = >
setDevChunkSize (
Math . max ( 1 , Number ( e . target . value ) ) ,
)
}
className = "w-14 text-xs p-1 border rounded bg-background"
/ >
< / div >
< / div >
< div className = "flex gap-2" >
< button
type = "button"
onClick = { handleDevSimulate }
disabled = { isSimulating || ! devXml . trim ( ) }
className = "px-3 py-1 text-xs bg-orange-500 text-white rounded hover:bg-orange-600 disabled:opacity-50 disabled:cursor-not-allowed"
>
{ isSimulating
? "Streaming..."
: ` Simulate ( ${ devChunkSize } chars/ ${ devIntervalMs } ms) ` }
< / button >
{ isSimulating && (
< button
type = "button"
onClick = { ( ) = > {
devStopRef . current = true
} }
className = "px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600"
>
Stop
< / button >
) }
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{ onShowQuotaToast && (
< button
type = "button"
onClick = { onShowQuotaToast }
className = "px-3 py-1 text-xs bg-purple-500 text-white rounded hover:bg-purple-600"
>
Test Quota Toast
< / button >
) }
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< / div >
< / div >
< / details >
< / div >
)
}
