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CodeNomad/packages/ui/src/components/message-item.tsx
2025-11-19 21:33:56 +00:00

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import { For, Show } from "solid-js"
import type { Message, SDKPart, MessageInfo, ClientPart } from "../types/message"
import { partHasRenderableText } from "../types/message"
import MessagePart from "./message-part"
interface MessageItemProps {
message: Message
messageInfo?: MessageInfo
instanceId: string
sessionId: string
isQueued?: boolean
parts?: ClientPart[]
onRevert?: (messageId: string) => void
onFork?: (messageId?: string) => void
}
export default function MessageItem(props: MessageItemProps) {
const isUser = () => props.message.type === "user"
const timestamp = () => {
const date = new Date(props.message.timestamp)
return date.toLocaleTimeString([], { hour: "2-digit", minute: "2-digit" })
}
type FilePart = Extract<ClientPart, { type: "file" }> & {
url?: string
mime?: string
filename?: string
}
const displayParts = () => props.parts ?? props.message.parts
const fileAttachments = () =>
props.message.parts.filter((part): part is FilePart => part?.type === "file" && typeof (part as FilePart).url === "string")
const getAttachmentName = (part: FilePart) => {
if (part.filename && part.filename.trim().length > 0) {
return part.filename
}
const url = part.url || ""
if (url.startsWith("data:")) {
return "attachment"
}
try {
const parsed = new URL(url)
const segments = parsed.pathname.split("/")
return segments.pop() || "attachment"
} catch (error) {
const fallback = url.split("/").pop()
return fallback && fallback.length > 0 ? fallback : "attachment"
}
}
const isImageAttachment = (part: FilePart) => {
if (part.mime && typeof part.mime === "string" && part.mime.startsWith("image/")) {
return true
}
return typeof part.url === "string" && part.url.startsWith("data:image/")
}
const handleAttachmentDownload = async (part: FilePart) => {
const url = part.url
if (!url) return
const filename = getAttachmentName(part)
const directDownload = (href: string) => {
const anchor = document.createElement("a")
anchor.href = href
anchor.download = filename
anchor.target = "_blank"
anchor.rel = "noopener"
document.body.appendChild(anchor)
anchor.click()
document.body.removeChild(anchor)
}
if (url.startsWith("data:")) {
directDownload(url)
return
}
if (url.startsWith("file://")) {
window.open(url, "_blank", "noopener")
return
}
try {
const response = await fetch(url)
if (!response.ok) throw new Error(`Failed to fetch attachment: ${response.status}`)
const blob = await response.blob()
const objectUrl = URL.createObjectURL(blob)
directDownload(objectUrl)
URL.revokeObjectURL(objectUrl)
} catch (error) {
directDownload(url)
}
}
const errorMessage = () => {
const info = props.messageInfo
if (!info || info.role !== "assistant" || !info.error) return null
const error = info.error
if (error.name === "ProviderAuthError") {
return error.data?.message || "Authentication error"
}
if (error.name === "MessageOutputLengthError") {
return "Message output length exceeded"
}
if (error.name === "MessageAbortedError") {
return "Request was aborted"
}
if (error.name === "UnknownError") {
return error.data?.message || "Unknown error occurred"
}
return null
}
const hasContent = () => {
if (errorMessage() !== null) {
return true
}
return displayParts().some((part) => partHasRenderableText(part))
}
const isGenerating = () => {
const info = props.messageInfo
return !hasContent() && info && info.role === "assistant" && info.time.completed !== undefined && info.time.completed === 0
}
const handleRevert = () => {
if (props.onRevert && isUser()) {
props.onRevert(props.message.id)
}
}
const containerClass = () =>
isUser()
? "message-item-base bg-[var(--message-user-bg)] border-l-4 border-[var(--message-user-border)]"
: "message-item-base assistant-message bg-[var(--message-assistant-bg)] border-l-4 border-[var(--message-assistant-border)]"
const agentIdentifier = () => {
if (isUser()) return ""
const info = props.messageInfo
if (!info || info.role !== "assistant") return ""
return info.mode || ""
}
const modelIdentifier = () => {
if (isUser()) return ""
const info = props.messageInfo
if (!info || info.role !== "assistant") return ""
const modelID = info.modelID || ""
const providerID = info.providerID || ""
if (modelID && providerID) return `${providerID}/${modelID}`
return modelID
}
return (
<div class={containerClass()}>
<div class="flex justify-between items-center gap-2.5 pb-0.5">
<div class="flex flex-col">
<Show when={isUser()}>
<span class="font-semibold text-xs text-[var(--message-user-border)]">You</span>
</Show>
<Show when={!isUser()}>
<div class="flex flex-wrap gap-x-3 gap-y-0.5 text-[11px] text-[var(--message-assistant-border)]">
<Show when={agentIdentifier()}>{(value) => <span>Agent: {value()}</span>}</Show>
<Show when={modelIdentifier()}>{(value) => <span>Model: {value()}</span>}</Show>
</div>
</Show>
</div>
<div class="flex items-center gap-2">
<Show when={isUser() && props.onRevert}>
<button
class="bg-transparent border border-[var(--border-base)] text-[var(--text-muted)] cursor-pointer px-3 py-0.5 rounded text-xs font-semibold leading-none transition-all duration-200 flex items-center justify-center h-6 hover:bg-[var(--surface-hover)] hover:border-[var(--accent-primary)] hover:text-[var(--accent-primary)] active:scale-95"
onClick={handleRevert}
title="Revert to this message"
aria-label="Revert to this message"
>
Revert to
</button>
</Show>
<Show when={isUser() && props.onFork}>
<button
class="bg-transparent border border-[var(--border-base)] text-[var(--text-muted)] cursor-pointer px-3 py-0.5 rounded text-xs font-semibold leading-none transition-all duration-200 flex items-center justify-center h-6 hover:bg-[var(--surface-hover)] hover:border-[var(--accent-primary)] hover:text-[var(--accent-primary)] active:scale-95"
onClick={() => props.onFork?.(props.message.id)}
title="Fork from this message"
aria-label="Fork from this message"
>
Fork
</button>
</Show>
<span class="text-[11px] text-[var(--text-muted)]">{timestamp()}</span>
</div>
</div>
<div class="pt-1 whitespace-pre-wrap break-words leading-[1.1]">
<Show when={props.isQueued && isUser()}>
<div class="message-queued-badge">QUEUED</div>
</Show>
<Show when={errorMessage()}>
<div class="message-error-block"> {errorMessage()}</div>
</Show>
<Show when={isGenerating()}>
<div class="message-generating">
<span class="generating-spinner"></span> Generating...
</div>
</Show>
<For each={displayParts()}>
{(part) => (
<MessagePart
part={part}
messageType={props.message.type}
instanceId={props.instanceId}
sessionId={props.sessionId}
/>
)}
</For>
</div>
<Show when={fileAttachments().length > 0}>
<div class="message-attachments">
<For each={fileAttachments()}>
{(attachment) => {
const name = getAttachmentName(attachment)
const isImage = isImageAttachment(attachment)
return (
<div class={`attachment-chip ${isImage ? "attachment-chip-image" : ""}`} title={name}>
<Show when={isImage} fallback={
<svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path
stroke-linecap="round"
stroke-linejoin="round"
stroke-width="2"
d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2"
/>
</svg>
}>
<img src={attachment.url} alt={name} class="h-5 w-5 rounded object-cover" />
</Show>
<span class="truncate max-w-[180px]">{name}</span>
<button
type="button"
onClick={() => void handleAttachmentDownload(attachment)}
class="attachment-download"
aria-label={`Download ${name}`}
>
<svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v2a2 2 0 002 2h12a2 2 0 002-2v-2" />
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 12l4 4 4-4m-4-8v12" />
</svg>
</button>
<Show when={isImage}>
<div class="attachment-chip-preview">
<img src={attachment.url} alt={name} />
</div>
</Show>
</div>
)
}}
</For>
</div>
</Show>
<Show when={props.message.status === "sending"}>
<div class="message-sending">
<span class="generating-spinner"></span> Sending...
</div>
</Show>
<Show when={props.message.status === "error"}>
<div class="message-error"> Message failed to send</div>
</Show>
</div>
)
}