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import { useCallback, useState } from "react";
import { FileError, FileRejection, useDropzone } from "react-dropzone";
import { attachmentSchema } from "shared-types";
import { FILE_TYPES } from "shared-types/uploads";
import { v4 as uuidv4 } from "uuid";
import { z } from "zod";
import * as I from "@/components/Inputs";
import { LoadingSpinner } from "@/components/LoadingSpinner"; // Import your LoadingSpinner component
import { cn } from "@/utils";
import { extractBucketAndKeyFromUrl, getPresignedUrl, uploadToS3 } from "./uploadUtilities";
type Attachment = z.infer<typeof attachmentSchema>;
type UploadProps = {
maxFiles?: number;
files: Attachment[];
setFiles: (files: Attachment[]) => void;
dataTestId?: string;
};
/**
* Upload component for handling file uploads with drag-and-drop functionality.
*
* @param {Object} props - The properties object.
* @param {number} props.maxFiles - The maximum number of files that can be uploaded.
* @param {Attachment[]} props.files - The current list of uploaded files.
* @param {Function} props.setFiles - Function to update the list of uploaded files.
* @param {string} props.dataTestId - The data-testid attribute for testing purposes.
*
* @returns {JSX.Element} The rendered Upload component.
*
* @component
* @example
* const [files, setFiles] = useState<Attachment[]>([]);
* return (
* <Upload
* maxFiles={5}
* files={files}
* setFiles={setFiles}
* dataTestId="file-upload"
* />
* );
*/
export const Upload = ({ maxFiles, files, setFiles, dataTestId }: UploadProps) => {
const [isUploading, setIsUploading] = useState(false); // New state for tracking upload status
const [rejectedFiles, setRejectedFiles] = useState<FileRejection[]>([]);
const uniqueId = uuidv4();
const MAX_FILE_SIZE = 80 * 1024 * 1024; //80 MB
const accept = FILE_TYPES.reduce(
(acc, { mime, extension }) => {
acc[mime] = acc[mime] ? [...acc[mime], extension] : [extension];
return acc;
},
{} as Record<string, string[]>,
);
const existingFileNames = files.map((file) => file.filename);
const validateFile = (file: File) => {
if (existingFileNames.includes(file.name)) {
return {
code: "file-already-exists",
message: `File with name "${file.name}" already exists.`,
};
}
if (file.size > MAX_FILE_SIZE) {
return {
code: "file-too-big",
message: `File "${file.name}" is too large to upload.`,
};
}
// The error message by default for drop zone is really wordy so this will replace that. We filter it on the output
if (!Object.keys(accept).includes(file.type)) {
return {
code: "file-invalid-type-replacement",
message: `File "${file.name}" has an invalid type.`,
};
}
};
const onDrop = useCallback(
async (acceptedFiles: File[], fileRejections: FileRejection[]) => {
setRejectedFiles(fileRejections);
if (fileRejections.length === 0) {
setIsUploading(true); // Set uploading to true
const processedFiles = await Promise.all(
acceptedFiles.map(async (file) => {
try {
const url = await getPresignedUrl(file.name);
const { bucket, key } = extractBucketAndKeyFromUrl(url);
await uploadToS3(file, url);
const attachment: Attachment = {
filename: file.name,
title: file.name.split(".").slice(0, -1).join("."),
bucket,
key,
uploadDate: Date.now(),
};
return attachment;
} catch {
const fileError: FileError = {
message: `Failed to upload ${file.name}`,
code: "fail-to-upload",
};
const uploadError: FileRejection = {
file: file,
errors: [fileError],
};
setRejectedFiles((prev) => [...prev, uploadError]);
}
}),
);
const validAttachments = processedFiles.filter(
(attachment) => attachment !== null,
) as Attachment[];
setFiles([...files, ...validAttachments]);
setIsUploading(false); // Set uploading to false when done
}
},
[files, setFiles],
);
const { getRootProps, getInputProps, isDragActive } = useDropzone({
onDrop,
accept,
validator: validateFile,
maxFiles,
maxSize: MAX_FILE_SIZE,
disabled: isUploading, // Disable dropzone while uploading
});
return (
<>
{files.length > 0 && (
<div className="my-2 flex flex-wrap gap-2">
{files.map((file) => (
<div
data-testid={`${file.filename}-chip`}
className="flex border-2 rounded-md py-1 pl-2.5 pr-1 border-sky-500 items-center"
key={file.filename}
>
<span className="text-sky-700">{file.filename}</span>
<I.Button
onClick={(e) => {
e.preventDefault();
setRejectedFiles([]);
setFiles(files.filter((a) => a.filename !== file.filename));
}}
variant="ghost"
className="p-0 h-0"
data-testid={`${dataTestId}-remove-file-${file.filename}`}
>
<X className="ml-2 text-sky-700 w-5" />
</I.Button>
</div>
))}
</div>
)}
{isUploading ? (
<LoadingSpinner /> // Render the loading spinner when uploading
) : (
<div
{...getRootProps()}
className={cn(
"w-full flex items-center justify-center border border-dashed border-[#71767a] py-6 rounded-sm",
isDragActive && "border-blue-700",
)}
>
<p>
Drag file here or{" "}
<span
data-testid={`${dataTestId}-click`}
className="text-sky-700 underline hover:cursor-pointer"
>
choose from folder
</span>
</p>
<label htmlFor={`upload-${uniqueId}`} className="sr-only">
Drag file here or choose from folder
</label>
<input
id={`upload-${uniqueId}`}
{...getInputProps()}
data-testid={`${dataTestId}-upload`}
/>
</div>
)}
{rejectedFiles.length > 0 && (
<span className="text-[0.8rem] font-medium text-destructive">
{rejectedFiles.flatMap(({ file, errors }) =>
errors
.filter((e) => e.code !== "file-invalid-type" && e.code !== "file-too-large")
.map((e) => <p key={`${file.name}-${e.code}`}>{e.message}</p>),
)}
</span>
)}
</>
);
};
Upload.displayName = "Upload";
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