Files
codeg/src/lib/prompt-draft.ts

103 lines
2.6 KiB
TypeScript

import type {
AdaptedContentPart,
UserImageDisplay,
UserResourceDisplay,
} from "@/lib/adapters/ai-elements-adapter"
import type { PromptDraft, PromptInputBlock } from "@/lib/types"
function isResourceLinkBlock(
block: PromptInputBlock
): block is Extract<PromptInputBlock, { type: "resource_link" }> {
return block.type === "resource_link"
}
function isEmbeddedResourceBlock(
block: PromptInputBlock
): block is Extract<PromptInputBlock, { type: "resource" }> {
return block.type === "resource"
}
function isImageBlock(
block: PromptInputBlock
): block is Extract<PromptInputBlock, { type: "image" }> {
return block.type === "image"
}
function deriveResourceNameFromUri(uri: string): string {
const fallback = "resource"
const normalized = uri.trim()
if (!normalized) return fallback
const withoutQuery = normalized.split(/[?#]/, 1)[0]
const candidate = withoutQuery.split(/[\\/]/).pop() ?? ""
let decoded = ""
if (candidate) {
try {
decoded = decodeURIComponent(candidate)
} catch {
decoded = candidate
}
}
return decoded || fallback
}
export function getPromptDraftDisplayText(
draft: PromptDraft,
attachedResourcesFallback: string
): string {
const trimmed = draft.displayText.trim()
return trimmed || attachedResourcesFallback
}
export function buildUserMessageTextPartsFromDraft(
draft: PromptDraft,
attachedResourcesFallback: string
): AdaptedContentPart[] {
return [
{
type: "text",
text: getPromptDraftDisplayText(draft, attachedResourcesFallback),
},
]
}
export function extractUserResourcesFromDraft(
draft: PromptDraft
): UserResourceDisplay[] {
const linked = draft.blocks.filter(isResourceLinkBlock).map((resource) => ({
name: resource.name,
uri: resource.uri,
mime_type: resource.mime_type ?? null,
}))
const embedded = draft.blocks
.filter(isEmbeddedResourceBlock)
.map((resource) => ({
name: deriveResourceNameFromUri(resource.uri),
uri: resource.uri,
mime_type: resource.mime_type ?? null,
}))
return [...linked, ...embedded]
}
function deriveImageName(
uri: string | null | undefined,
mimeType: string
): string {
if (uri && uri.trim().length > 0) {
const name = deriveResourceNameFromUri(uri)
if (name !== "resource") return name
}
const ext = mimeType.split("/")[1]?.split("+")[0] ?? "image"
return `image.${ext}`
}
export function extractUserImagesFromDraft(
draft: PromptDraft
): UserImageDisplay[] {
return draft.blocks.filter(isImageBlock).map((image) => ({
name: deriveImageName(image.uri, image.mime_type),
data: image.data,
mime_type: image.mime_type,
uri: image.uri ?? null,
}))
}