import { X } from "lucide-react";
import * as React from "react";
import { createPortal } from "react-dom";

import { cn } from "../../lib/utils";

type DialogContextValue = {
  open: boolean;
  setOpen: (open: boolean) => void;
};

const DialogContext = React.createContext<DialogContextValue | null>(null);

function useDialogContext(componentName: string) {
  const context = React.useContext(DialogContext);
  if (!context) {
    throw new Error(`${componentName} must be used within Dialog`);
  }
  return context;
}

function composeEventHandlers<E extends React.SyntheticEvent>(
  theirs: ((event: E) => void) | undefined,
  ours: (event: E) => void,
) {
  return (event: E) => {
    theirs?.(event);
    if (!event.defaultPrevented) {
      ours(event);
    }
  };
}

type DialogProps = {
  open?: boolean;
  defaultOpen?: boolean;
  onOpenChange?: (open: boolean) => void;
  children?: React.ReactNode;
};

function Dialog({
  open,
  defaultOpen = false,
  onOpenChange,
  children,
}: DialogProps) {
  const [internalOpen, setInternalOpen] = React.useState(defaultOpen);
  const isControlled = open !== undefined;
  const currentOpen = isControlled ? open : internalOpen;
  const setOpen = React.useCallback(
    (nextOpen: boolean) => {
      if (!isControlled) {
        setInternalOpen(nextOpen);
      }
      onOpenChange?.(nextOpen);
    },
    [isControlled, onOpenChange],
  );

  const value = React.useMemo(
    () => ({ open: currentOpen, setOpen }),
    [currentOpen, setOpen],
  );

  return (
    <DialogContext.Provider value={value}>{children}</DialogContext.Provider>
  );
}

type DialogTriggerProps = React.ButtonHTMLAttributes<HTMLButtonElement> & {
  asChild?: boolean;
};

const DialogTrigger = React.forwardRef<HTMLButtonElement, DialogTriggerProps>(
  ({ asChild = false, children, onClick, ...props }, ref) => {
    const { setOpen } = useDialogContext("DialogTrigger");
    const handleOpen = (event: React.MouseEvent<HTMLButtonElement>) => {
      onClick?.(event);
      if (!event.defaultPrevented) {
        setOpen(true);
      }
    };

    if (asChild && React.isValidElement(children)) {
      const child = children as React.ReactElement<{
        onClick?: React.MouseEventHandler<HTMLElement>;
      }>;
      return React.cloneElement(child, {
        ...props,
        onClick: composeEventHandlers(
          child.props.onClick as React.MouseEventHandler<HTMLButtonElement>,
          () => setOpen(true),
        ),
      });
    }

    return (
      <button type="button" ref={ref} onClick={handleOpen} {...props}>
        {children}
      </button>
    );
  },
);
DialogTrigger.displayName = "DialogTrigger";

const DialogPortal = ({ children }: { children?: React.ReactNode }) => {
  if (typeof document === "undefined") {
    return null;
  }
  return createPortal(children, document.body);
};
DialogPortal.displayName = "DialogPortal";

const DialogClose = React.forwardRef<HTMLButtonElement, DialogTriggerProps>(
  ({ asChild = false, children, onClick, ...props }, ref) => {
    const { setOpen } = useDialogContext("DialogClose");
    const handleClose = (event: React.MouseEvent<HTMLButtonElement>) => {
      onClick?.(event);
      if (!event.defaultPrevented) {
        setOpen(false);
      }
    };

    if (asChild && React.isValidElement(children)) {
      const child = children as React.ReactElement<{
        onClick?: React.MouseEventHandler<HTMLElement>;
      }>;
      return React.cloneElement(child, {
        ...props,
        onClick: composeEventHandlers(
          child.props.onClick as React.MouseEventHandler<HTMLButtonElement>,
          () => setOpen(false),
        ),
      });
    }

    return (
      <button type="button" ref={ref} onClick={handleClose} {...props}>
        {children}
      </button>
    );
  },
);
DialogClose.displayName = "DialogClose";

const DialogOverlay = React.forwardRef<
  HTMLButtonElement,
  React.ButtonHTMLAttributes<HTMLButtonElement>
>(({ className, onMouseDown, ...props }, ref) => {
  const { setOpen } = useDialogContext("DialogOverlay");
  return (
    <button
      type="button"
      ref={ref}
      className={cn(
        "fixed inset-0 z-50 border-0 bg-black/80 p-0 data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0",
        className,
      )}
      data-state="open"
      aria-label="Close dialog"
      onMouseDown={composeEventHandlers(onMouseDown, (event) => {
        if (event.target === event.currentTarget) {
          setOpen(false);
        }
      })}
      {...props}
    />
  );
});
DialogOverlay.displayName = "DialogOverlay";

const DialogContent = React.forwardRef<
  HTMLDialogElement,
  React.HTMLAttributes<HTMLDialogElement>
>(({ className, children, onKeyDown, ...props }, ref) => {
  const { open, setOpen } = useDialogContext("DialogContent");

  React.useEffect(() => {
    if (!open) {
      return;
    }
    const onDocumentKeyDown = (event: KeyboardEvent) => {
      if (event.key === "Escape") {
        setOpen(false);
      }
    };
    document.addEventListener("keydown", onDocumentKeyDown);
    return () => document.removeEventListener("keydown", onDocumentKeyDown);
  }, [open, setOpen]);

  if (!open) {
    return null;
  }

  return (
    <DialogPortal>
      <DialogOverlay />
      <dialog
        ref={ref}
        open
        aria-modal="true"
        data-state="open"
        className={cn(
          "fixed left-[50%] top-[50%] z-50 m-0 grid w-full max-w-lg translate-x-[-50%] translate-y-[-50%] gap-4 border bg-background p-6 shadow-lg duration-200 backdrop:bg-transparent data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[state=closed]:slide-out-to-left-1/2 data-[state=closed]:slide-out-to-top-[48%] data-[state=open]:slide-in-from-left-1/2 data-[state=open]:slide-in-from-top-[48%] sm:rounded-lg",
          className,
        )}
        onKeyDown={onKeyDown}
        {...props}
      >
        {children}
        <DialogClose className="absolute right-4 top-4 rounded-sm opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground">
          <X className="h-4 w-4" />
          <span className="sr-only">Close</span>
        </DialogClose>
      </dialog>
    </DialogPortal>
  );
});
DialogContent.displayName = "DialogContent";

const DialogHeader = ({
  className,
  ...props
}: React.HTMLAttributes<HTMLDivElement>) => (
  <div
    className={cn(
      "flex flex-col space-y-1.5 text-center sm:text-left",
      className,
    )}
    {...props}
  />
);
DialogHeader.displayName = "DialogHeader";

const DialogFooter = ({
  className,
  ...props
}: React.HTMLAttributes<HTMLDivElement>) => (
  <div
    className={cn(
      "flex flex-col-reverse sm:flex-row sm:justify-end sm:space-x-2",
      className,
    )}
    {...props}
  />
);
DialogFooter.displayName = "DialogFooter";

const DialogTitle = React.forwardRef<
  HTMLHeadingElement,
  React.HTMLAttributes<HTMLHeadingElement>
>(({ className, ...props }, ref) => (
  <h2
    ref={ref}
    className={cn(
      "text-lg font-semibold leading-none tracking-tight",
      className,
    )}
    {...props}
  />
));
DialogTitle.displayName = "DialogTitle";

const DialogDescription = React.forwardRef<
  HTMLParagraphElement,
  React.HTMLAttributes<HTMLParagraphElement>
>(({ className, ...props }, ref) => (
  <p
    ref={ref}
    className={cn("text-sm text-muted-foreground", className)}
    {...props}
  />
));
DialogDescription.displayName = "DialogDescription";

export {
  Dialog,
  DialogClose,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogOverlay,
  DialogPortal,
  DialogTitle,
  DialogTrigger,
};