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|
"use client";
import { cn } from "@lib/utils";
import { Button } from "@ui/components/button";
import { UploadIcon } from "lucide-react";
import type { ReactNode } from "react";
import { createContext, useContext } from "react";
import type { DropEvent, DropzoneOptions, FileRejection } from "react-dropzone";
import { useDropzone } from "react-dropzone";
type DropzoneContextType = {
src?: File[];
accept?: DropzoneOptions["accept"];
maxSize?: DropzoneOptions["maxSize"];
minSize?: DropzoneOptions["minSize"];
maxFiles?: DropzoneOptions["maxFiles"];
};
const renderBytes = (bytes: number) => {
const units = ["B", "KB", "MB", "GB", "TB", "PB"];
let size = bytes;
let unitIndex = 0;
while (size >= 1024 && unitIndex < units.length - 1) {
size /= 1024;
unitIndex++;
}
return `${size.toFixed(2)}${units[unitIndex]}`;
};
const DropzoneContext = createContext<DropzoneContextType | undefined>(
undefined,
);
export type DropzoneProps = Omit<DropzoneOptions, "onDrop"> & {
src?: File[];
className?: string;
onDrop?: (
acceptedFiles: File[],
fileRejections: FileRejection[],
event: DropEvent,
) => void;
children?: ReactNode;
};
export const Dropzone = ({
accept,
maxFiles = 1,
maxSize,
minSize,
onDrop,
onError,
disabled,
src,
className,
children,
...props
}: DropzoneProps) => {
const { getRootProps, getInputProps, isDragActive } = useDropzone({
accept,
maxFiles,
maxSize,
minSize,
onError,
disabled,
onDrop: (acceptedFiles, fileRejections, event) => {
if (fileRejections.length > 0) {
const message = fileRejections.at(0)?.errors.at(0)?.message;
onError?.(new Error(message));
return;
}
onDrop?.(acceptedFiles, fileRejections, event);
},
...props,
});
return (
<DropzoneContext.Provider
key={JSON.stringify(src)}
value={{ src, accept, maxSize, minSize, maxFiles }}
>
<Button
className={cn(
"relative h-auto w-full flex-col overflow-hidden p-8 cursor-pointer",
isDragActive && "outline-none ring-1 ring-ring",
className,
)}
disabled={disabled}
type="button"
variant="outline"
{...getRootProps()}
>
<input {...getInputProps()} disabled={disabled} />
{children}
</Button>
</DropzoneContext.Provider>
);
};
const useDropzoneContext = () => {
const context = useContext(DropzoneContext);
if (!context) {
throw new Error("useDropzoneContext must be used within a Dropzone");
}
return context;
};
export type DropzoneContentProps = {
children?: ReactNode;
className?: string;
};
const maxLabelItems = 1;
export const DropzoneContent = ({
children,
className,
}: DropzoneContentProps) => {
const { src } = useDropzoneContext();
if (!src) {
return null;
}
if (children) {
return children;
}
return (
<div className={cn("flex flex-col items-center justify-center", className)}>
<div className="flex size-8 items-center justify-center rounded-md bg-muted text-muted-foreground">
<UploadIcon size={16} />
</div>
<p className="my-2 w-full truncate font-medium text-sm">
{src.length > maxLabelItems
? `${new Intl.ListFormat("en").format(
src.slice(0, maxLabelItems).map((file) => file.name),
)} and ${src.length - maxLabelItems} more`
: new Intl.ListFormat("en").format(src.map((file) => file.name))}
</p>
<p className="w-full text-wrap text-muted-foreground text-xs">
Drag and drop or click to replace
</p>
</div>
);
};
export type DropzoneEmptyStateProps = {
children?: ReactNode;
className?: string;
};
export const DropzoneEmptyState = ({
children,
className,
}: DropzoneEmptyStateProps) => {
const { src, accept, maxSize, minSize, maxFiles } = useDropzoneContext();
if (src) {
return null;
}
if (children) {
return children;
}
let caption = "";
if (accept) {
caption += "Accepts ";
caption += new Intl.ListFormat("en").format(Object.keys(accept));
}
if (minSize && maxSize) {
caption += ` between ${renderBytes(minSize)} and ${renderBytes(maxSize)}`;
} else if (minSize) {
caption += ` at least ${renderBytes(minSize)}`;
} else if (maxSize) {
caption += ` less than ${renderBytes(maxSize)}`;
}
return (
<div className={cn("flex flex-col items-center justify-center", className)}>
<div className="flex size-8 items-center justify-center rounded-md bg-muted text-muted-foreground">
<UploadIcon size={16} />
</div>
<p className="my-2 w-full truncate text-wrap font-medium text-sm">
Upload {maxFiles === 1 ? "a file" : "files"}
</p>
<p className="w-full truncate text-wrap text-muted-foreground text-xs">
Drag and drop or click to upload
</p>
{caption && (
<p className="text-wrap text-muted-foreground text-xs">{caption}.</p>
)}
</div>
);
};
|