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import { VSCodeProgressRing } from "@vscode/webview-ui-toolkit/react"
import React, { useCallback, useEffect, useState } from "react"
import styled from "styled-components"
import ChatErrorBoundary from "@/components/chat/ChatErrorBoundary"
import { CODE_BLOCK_BG_COLOR } from "@/components/common/CodeBlock"
import MarkdownBlock from "@/components/common/MarkdownBlock"
import { DropdownContainer } from "@/components/settings/ApiOptions"
import { updateSetting } from "@/components/settings/utils/settingsHandlers"
import { useExtensionState } from "../../../context/ExtensionStateContext"
import ImagePreview from "./ImagePreview"
import LinkPreview from "./LinkPreview"
import McpDisplayModeDropdown from "./McpDisplayModeDropdown"
import { buildDisplaySegments, DisplaySegment, processResponseUrls, UrlMatch } from "./utils/mcpRichUtil"
// Maximum number of URLs to process in total, per response
export const MAX_URLS = 50
const ResponseHeader = styled.div`
display: flex;
justify-content: space-between;
align-items: center;
padding: 9px 10px;
color: var(--vscode-descriptionForeground);
cursor: pointer;
user-select: none;
border-bottom: 1px dashed var(--vscode-editorGroup-border);
margin-bottom: 8px;
.header-title {
display: flex;
align-items: center;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
margin-right: 8px;
}
.header-icon {
margin-right: 6px;
}
`
const ResponseContainer = styled.div`
position: relative;
font-family: var(--vscode-editor-font-family, monospace);
font-size: var(--vscode-editor-font-size, 12px);
background-color: ${CODE_BLOCK_BG_COLOR};
color: var(--vscode-editor-foreground, #d4d4d4);
border-radius: 3px;
border: 1px solid var(--vscode-editorGroup-border);
overflow: hidden;
z-index: 0;
.response-content {
overflow-x: auto;
overflow-y: hidden;
max-width: 100%;
padding: 10px;
}
`
// Style for URL text to ensure proper wrapping
const UrlText = styled.div`
white-space: pre-wrap;
word-break: break-all;
overflow-wrap: break-word;
font-family: var(--vscode-editor-font-family, monospace);
font-size: var(--vscode-editor-font-size, 12px);
`
interface McpResponseDisplayProps {
responseText: string
}
const McpResponseDisplay: React.FC<McpResponseDisplayProps> = ({ responseText }) => {
const { mcpResponsesCollapsed, mcpDisplayMode } = useExtensionState() // Get setting from context
const [isExpanded, setIsExpanded] = useState(!mcpResponsesCollapsed) // Initialize with context setting
const [isLoading, setIsLoading] = useState(false) // Initial loading state for rich content
const [urlMatches, setUrlMatches] = useState<UrlMatch[]>([])
const [error, setError] = useState<string | null>(null)
const handleDisplayModeChange = useCallback((newMode: McpDisplayMode) => {
updateSetting("mcpDisplayMode", newMode)
}, [])
const toggleExpand = useCallback(() => {
setIsExpanded((prev) => !prev)
}, [])
// Effect to update isExpanded if mcpResponsesCollapsed changes from context
useEffect(() => {
setIsExpanded(!mcpResponsesCollapsed)
}, [mcpResponsesCollapsed])
// Find all URLs in the text and determine if they're images
useEffect(() => {
// Skip all processing if in plain mode or markdown mode
if (!isExpanded || mcpDisplayMode === "plain" || mcpDisplayMode === "markdown") {
setIsLoading(false)
if (urlMatches.length > 0) {
setUrlMatches([]) // Clear any existing matches when not in rich mode
}
return
}
console.log("Processing MCP response for URL extraction")
setIsLoading(true)
setError(null)
// Use the orchestrator function from mcpRichUtil
const cleanup = processResponseUrls(
responseText || "",
MAX_URLS,
(matches) => {
setUrlMatches(matches)
setIsLoading(false)
},
(updatedMatches) => {
setUrlMatches(updatedMatches)
},
(errorMessage) => {
setError(errorMessage)
setIsLoading(false)
},
)
return cleanup
}, [responseText, mcpDisplayMode, isExpanded])
// Helper function to render a display segment
const renderSegment = (segment: DisplaySegment): JSX.Element => {
switch (segment.type) {
case "text":
case "url":
return <UrlText key={segment.key}>{segment.content}</UrlText>
case "image":
return (
<div key={segment.key}>
<ImagePreview url={segment.url!} />
</div>
)
case "link":
return (
<div key={segment.key} style={{ margin: "10px 0" }}>
<LinkPreview url={segment.url!} />
</div>
)
case "error":
return (
<div
key={segment.key}
style={{
margin: "10px 0",
padding: "8px",
color: "var(--vscode-errorForeground)",
border: "1px solid var(--vscode-editorError-foreground)",
borderRadius: "4px",
height: "128px",
overflow: "auto",
}}>
{segment.content}
</div>
)
default:
return <React.Fragment key={segment.key} />
}
}
// Function to render content based on display mode
const renderContent = () => {
if (!isExpanded) {
return null
}
if (isLoading && mcpDisplayMode === "rich") {
return (
<div style={{ display: "flex", justifyContent: "center", alignItems: "center", height: "50px" }}>
<VSCodeProgressRing />
</div>
)
}
if (mcpDisplayMode === "plain") {
return <UrlText>{responseText}</UrlText>
}
if (mcpDisplayMode === "markdown") {
return <MarkdownBlock markdown={responseText} />
}
if (error) {
return (
<>
<div style={{ color: "var(--vscode-errorForeground)", marginBottom: "10px" }}>{error}</div>
<UrlText>{responseText}</UrlText>
</>
)
}
if (mcpDisplayMode === "rich") {
const segments = buildDisplaySegments(responseText, urlMatches)
return <>{segments.map(renderSegment)}</>
}
return null
}
try {
return (
<ResponseContainer>
<ResponseHeader
onClick={toggleExpand}
style={{
borderBottom: isExpanded ? "1px dashed var(--vscode-editorGroup-border)" : "none",
marginBottom: isExpanded ? "8px" : "0px",
}}>
<div className="header-title">
<span className={`codicon codicon-chevron-${isExpanded ? "down" : "right"} header-icon`}></span>
Response
</div>
<DropdownContainer
style={{ minWidth: isExpanded ? "auto" : "0", visibility: isExpanded ? "visible" : "hidden" }}>
<McpDisplayModeDropdown
onChange={handleDisplayModeChange}
onClick={(e) => e.stopPropagation()}
style={{ minWidth: "120px" }}
value={mcpDisplayMode}
/>
</DropdownContainer>
</ResponseHeader>
{isExpanded && <div className="response-content">{renderContent()}</div>}
</ResponseContainer>
)
} catch (_error) {
console.log("Error rendering MCP response - falling back to plain text") // Restored comment
// Fallback for critical rendering errors
return (
<ResponseContainer>
<ResponseHeader onClick={toggleExpand}>
<div className="header-title">
<span className={`codicon codicon-chevron-${isExpanded ? "down" : "right"} header-icon`}></span>
Response (Error)
</div>
</ResponseHeader>
{isExpanded && (
<div className="response-content">
<div style={{ color: "var(--vscode-errorForeground)" }}>Error parsing response:</div>
<UrlText>{responseText}</UrlText>
</div>
)}
</ResponseContainer>
)
}
}
// Wrap the entire McpResponseDisplay component with an error boundary
const McpResponseDisplayWithErrorBoundary: React.FC<McpResponseDisplayProps> = (props) => {
return (
<ChatErrorBoundary>
<McpResponseDisplay {...props} />
</ChatErrorBoundary>
)
}
export default McpResponseDisplayWithErrorBoundary
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