new-personal-site/components/lib/form/FileUpload.tsx
Benjamin Toby a0a0ab8ee4 Updates
2025-07-20 10:35:54 +01:00

329 lines
12 KiB
TypeScript

import Button from "../layout/Button";
import Stack from "../layout/Stack";
import { FileArchive, FilePlus2, X } from "lucide-react";
import React, { ComponentProps, DetailedHTMLProps, ReactNode } from "react";
import Card from "../elements/Card";
import Span from "../layout/Span";
import Center from "../layout/Center";
import { FileInputToBase64FunctionReturn } from "../utils/form/fileInputToBase64";
import { twMerge } from "tailwind-merge";
import fileInputToBase64 from "../utils/form/fileInputToBase64";
import Row from "../layout/Row";
import Input from "./Input";
import Loading from "../elements/Loading";
type ImageUploadProps = DetailedHTMLProps<
React.HTMLAttributes<HTMLDivElement>,
HTMLDivElement
> & {
onChangeHandler?: (
fileData: FileInputToBase64FunctionReturn | undefined
) => any;
onClear?: () => void;
fileInputProps?: DetailedHTMLProps<
React.InputHTMLAttributes<HTMLInputElement>,
HTMLInputElement
>;
placeHolderWrapper?: DetailedHTMLProps<
React.HTMLAttributes<HTMLDivElement>,
HTMLDivElement
>;
previewImageWrapperProps?: DetailedHTMLProps<
React.HTMLAttributes<HTMLDivElement>,
HTMLDivElement
>;
previewImageProps?: DetailedHTMLProps<
React.ImgHTMLAttributes<HTMLImageElement>,
HTMLImageElement
>;
label?: string | ReactNode;
disablePreview?: boolean;
allowedRegex?: RegExp;
externalSetFile?: React.Dispatch<
React.SetStateAction<FileInputToBase64FunctionReturn | undefined>
>;
externalSetFiles?: React.Dispatch<
React.SetStateAction<FileInputToBase64FunctionReturn[] | undefined>
>;
existingFile?: FileInputToBase64FunctionReturn;
existingFileUrl?: string;
icon?: ReactNode;
labelSpanProps?: ComponentProps<typeof Span>;
loading?: boolean;
multiple?: boolean;
};
/**
* @note use the `onChangeHandler` prop to grab the parsed base64 image object
*/
export default function FileUpload({
onChangeHandler,
fileInputProps,
placeHolderWrapper,
previewImageWrapperProps,
previewImageProps,
label,
disablePreview,
allowedRegex,
externalSetFile,
externalSetFiles,
existingFile,
existingFileUrl,
icon,
labelSpanProps,
loading,
multiple,
onClear,
...props
}: ImageUploadProps) {
const [file, setFile] = React.useState<
FileInputToBase64FunctionReturn | undefined
>(existingFile);
const [fileUrl, setFileUrl] = React.useState<string | undefined>(
existingFileUrl
);
const [fileDraggedOver, setFileDraggedOver] = React.useState(false);
const inputRef = React.useRef<HTMLInputElement>(null);
React.useEffect(() => {
if (existingFileUrl) {
setFileUrl(existingFileUrl);
}
}, [existingFileUrl]);
React.useEffect(() => {
if (existingFile) {
setFile(existingFile);
}
}, [existingFile]);
return (
<Stack
{...props}
className={twMerge("w-full h-[300px]", props?.className)}
>
<input
type="file"
multiple={multiple}
className={twMerge("hidden", fileInputProps?.className)}
{...fileInputProps}
onChange={(e) => {
if (multiple) {
(async () => {
const files = e.target.files;
if (!files?.[0]) return;
let filesArr: FileInputToBase64FunctionReturn[] =
[];
for (let i = 0; i < files.length; i++) {
const file = files[i];
const fileObj = await fileInputToBase64({
inputFile: file,
});
filesArr.push(fileObj);
}
externalSetFiles?.(filesArr);
})();
} else {
const inputFile = e.target.files?.[0];
if (!inputFile) return;
fileInputToBase64({ inputFile, allowedRegex }).then(
(res) => {
setFile(res);
externalSetFile?.(res);
onChangeHandler?.(res);
fileInputProps?.onChange?.(e);
}
);
}
}}
ref={inputRef as any}
/>
{loading ? (
<Card className={twMerge("w-full h-full ")}>
<Center>
<Loading />
</Center>
</Card>
) : file ? (
<Card
{...previewImageWrapperProps}
className={twMerge(
"w-full relative h-full items-center justify-center overflow-hidden",
"pb-10",
previewImageWrapperProps?.className
)}
>
<Stack>
{disablePreview ? (
<Span className="opacity-50" size="small">
Image Uploaded!
</Span>
) : file.fileType?.match(/image/i) ? (
<img
src={file.fileBase64Full}
className="w-full object-contain overflow-hidden"
{...previewImageProps}
/>
) : (
<Stack>
<FileArchive size={36} strokeWidth={1} />
<Stack className="gap-0">
<Span>
{file.file?.name || file.fileName}
</Span>
<Span size="smaller" className="opacity-70">
{file.fileType}
</Span>
</Stack>
</Stack>
)}
<Button
variant="ghost"
className={twMerge(
"absolute p-2 top-2 right-2 z-20 bg-background-light dark:bg-background-dark",
"hover:bg-white dark:hover:bg-black"
)}
onClick={(e) => {
setFile(undefined);
externalSetFile?.(undefined);
onChangeHandler?.(undefined);
if (inputRef.current) {
inputRef.current.value = "";
}
onClear?.();
}}
title="Cancel File Upload Button"
>
<X className="text-slate-950 dark:text-white" />
</Button>
<Input
value={file.fileName}
onChange={(e) => {
setFile({ ...file, fileName: e.target.value });
externalSetFile?.({
...file,
fileName: e.target.value,
});
}}
/>
</Stack>
</Card>
) : fileUrl ? (
<Card
className="w-full relative h-full items-center justify-center overflow-hidden"
{...previewImageWrapperProps}
>
{disablePreview ? (
<Span className="opacity-50" size="small">
Image Uploaded!
</Span>
) : fileUrl.match(/\.pdf$|\.txt$/) ? (
<Row>
<FileArchive size={36} strokeWidth={1} />
<Stack className="gap-0">
<Span size="smaller" className="opacity-70">
{fileUrl}
</Span>
</Stack>
</Row>
) : (
<img
src={fileUrl}
className="w-full object-contain overflow-hidden"
{...previewImageProps}
/>
)}
<Button
variant="ghost"
className={twMerge(
"absolute p-2 top-2 right-2 z-20 bg-white dark:bg-black",
"hover:bg-white dark:hover:bg-black"
)}
onClick={(e) => {
setFile(undefined);
externalSetFile?.(undefined);
onChangeHandler?.(undefined);
setFileUrl(undefined);
}}
title="Cancel File Button"
>
<X className="text-slate-950 dark:text-white" />
</Button>
</Card>
) : (
<Card
className={twMerge(
"w-full h-full cursor-pointer hover:bg-slate-100/50 dark:hover:bg-white/5",
"border-dashed border-2",
fileDraggedOver ? "bg-slate-100 dark:bg-white/10" : "",
placeHolderWrapper?.className
)}
onClick={(e) => {
inputRef.current?.click();
placeHolderWrapper?.onClick?.(e);
}}
onDragOver={(e) => {
e.preventDefault();
setFileDraggedOver(true);
}}
onDragLeave={(e) => {
setFileDraggedOver(false);
}}
onDrop={(e) => {
e.preventDefault();
setFileDraggedOver(false);
let inputFile: File | null = null;
if (e.dataTransfer.items) {
[...e.dataTransfer.items].forEach((item, i) => {
if (inputFile) return;
if (item.kind === "file") {
const file = item.getAsFile();
inputFile = file;
}
});
} else {
inputFile = e.dataTransfer.files?.[0];
}
if (!inputFile) return;
fileInputToBase64({ inputFile, allowedRegex }).then(
(res) => {
setFile(res);
externalSetFile?.(res);
onChangeHandler?.(res);
}
);
}}
{...placeHolderWrapper}
>
<Center
className={twMerge(
fileDraggedOver ? "pointer-events-none" : ""
)}
>
<Stack className="items-center gap-2">
{icon || <FilePlus2 className="text-slate-400" />}
<Span
size="smaller"
variant="faded"
{...labelSpanProps}
>
{label || "Click to Upload File"}
</Span>
</Stack>
</Center>
</Card>
)}
</Stack>
);
}