File size: 2,592 Bytes
2517be1 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | import { AttachmentType, FileTypeCategory, SpecialFileType } from '$lib/enums';
import { getFileTypeCategory, getFileTypeCategoryByExtension, isImageFile } from '$lib/utils';
import type {
AttachmentDisplayItemsOptions,
ChatUploadedFile,
DatabaseMessageExtra
} from '$lib/types';
/**
* Check if an uploaded file is an MCP prompt
*/
function isMcpPromptUpload(file: ChatUploadedFile): boolean {
return file.type === SpecialFileType.MCP_PROMPT && !!file.mcpPrompt;
}
/**
* Check if an attachment is an MCP prompt
*/
function isMcpPromptAttachment(attachment: DatabaseMessageExtra): boolean {
return attachment.type === AttachmentType.MCP_PROMPT;
}
/**
* Check if an attachment is an MCP resource
*/
function isMcpResourceAttachment(attachment: DatabaseMessageExtra): boolean {
return attachment.type === AttachmentType.MCP_RESOURCE;
}
/**
* Gets the file type category from an uploaded file, checking both MIME type and extension
*/
function getUploadedFileCategory(file: ChatUploadedFile): FileTypeCategory | null {
const categoryByMime = getFileTypeCategory(file.type);
if (categoryByMime) {
return categoryByMime;
}
return getFileTypeCategoryByExtension(file.name);
}
/**
* Creates a unified list of display items from uploaded files and stored attachments.
* Items are returned in reverse order (newest first).
*/
export function getAttachmentDisplayItems(
options: AttachmentDisplayItemsOptions
): ChatAttachmentDisplayItem[] {
const { uploadedFiles = [], attachments = [] } = options;
const items: ChatAttachmentDisplayItem[] = [];
// Add uploaded files (ChatForm)
for (const file of uploadedFiles) {
items.push({
id: file.id,
name: file.name,
size: file.size,
preview: file.preview,
isImage: getUploadedFileCategory(file) === FileTypeCategory.IMAGE,
isMcpPrompt: isMcpPromptUpload(file),
isLoading: file.isLoading,
loadError: file.loadError,
uploadedFile: file,
textContent: file.textContent
});
}
// Add stored attachments (ChatMessage)
for (const [index, attachment] of attachments.entries()) {
const isImage = isImageFile(attachment);
const isMcpPrompt = isMcpPromptAttachment(attachment);
const isMcpResource = isMcpResourceAttachment(attachment);
items.push({
id: `attachment-${index}`,
name: attachment.name,
preview: isImage && 'base64Url' in attachment ? attachment.base64Url : undefined,
isImage,
isMcpPrompt,
isMcpResource,
attachment,
attachmentIndex: index,
textContent: 'content' in attachment ? attachment.content : undefined
});
}
return items.reverse();
}
|