"use client";

import { mergeProps } from "@base-ui/react/merge-props";
import { useRender } from "@base-ui/react/use-render";
import { cva, type VariantProps } from "class-variance-authority";
import { PanelLeftIcon } from "lucide-react";
import type * as React from "react";
import {
  createContext,
  useCallback,
  useContext,
  useEffect,
  useMemo,
  useState,
} from "react";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Separator } from "@/components/ui/separator";
import {
  Sheet,
  SheetContent,
  SheetDescription,
  SheetHeader,
  SheetTitle,
} from "@/components/ui/sheet";
import { Skeleton } from "@/components/ui/skeleton";
import {
  Tooltip,
  TooltipContent,
  TooltipTrigger,
} from "@/components/ui/tooltip";
import { useIsMobile } from "@/hooks/use-mobile";
import { cn } from "@/lib/utils";

const SIDEBAR_COOKIE_NAME = "sidebar_state";
const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7;
const SIDEBAR_WIDTH = "16rem";
const SIDEBAR_WIDTH_MOBILE = "18rem";
const SIDEBAR_WIDTH_ICON = "3rem";
const SIDEBAR_KEYBOARD_SHORTCUT = "b";

interface SidebarContextProps {
  isMobile: boolean;
  open: boolean;
  openMobile: boolean;
  setOpen: (open: boolean) => void;
  setOpenMobile: (open: boolean) => void;
  state: "expanded" | "collapsed";
  toggleSidebar: () => void;
}

const SidebarContext = createContext<SidebarContextProps | null>(null);

function useSidebar() {
  const context = useContext(SidebarContext);
  if (!context) {
    throw new Error("useSidebar must be used within a SidebarProvider.");
  }

  return context;
}

function SidebarProvider({
  defaultOpen = true,
  open: openProp,
  onOpenChange: setOpenProp,
  className,
  style,
  children,
  ...props
}: React.ComponentProps<"div"> & {
  defaultOpen?: boolean;
  open?: boolean;
  onOpenChange?: (open: boolean) => void;
}) {
  const isMobile = useIsMobile();
  const [openMobile, setOpenMobile] = useState(false);

  // This is the internal state of the sidebar.
  // We use openProp and setOpenProp for control from outside the component.
  const [_open, _setOpen] = useState(defaultOpen);
  const open = openProp ?? _open;
  const setOpen = useCallback(
    (value: boolean | ((value: boolean) => boolean)) => {
      const openState = typeof value === "function" ? value(open) : value;
      if (setOpenProp) {
        setOpenProp(openState);
      } else {
        _setOpen(openState);
      }

      // This sets the cookie to keep the sidebar state.
      // biome-ignore lint/suspicious/noDocumentCookie: this state cookie is intentionally persisted client-side.
      document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`;
    },
    [setOpenProp, open]
  );

  // Helper to toggle the sidebar.
  const toggleSidebar = useCallback(() => {
    return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open);
  }, [isMobile, setOpen]);

  // Adds a keyboard shortcut to toggle the sidebar.
  useEffect(() => {
    const handleKeyDown = (event: KeyboardEvent) => {
      if (
        event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
        (event.metaKey || event.ctrlKey)
      ) {
        event.preventDefault();
        toggleSidebar();
      }
    };

    window.addEventListener("keydown", handleKeyDown);
    return () => window.removeEventListener("keydown", handleKeyDown);
  }, [toggleSidebar]);

  // We add a state so that we can do data-state="expanded" or "collapsed".
  // This makes it easier to style the sidebar with Tailwind classes.
  const state = open ? "expanded" : "collapsed";

  const contextValue = useMemo<SidebarContextProps>(
    () => ({
      state,
      open,
      setOpen,
      isMobile,
      openMobile,
      setOpenMobile,
      toggleSidebar,
    }),
    [state, open, setOpen, isMobile, openMobile, toggleSidebar]
  );

  return (
    <SidebarContext.Provider value={contextValue}>
      <div
        className={cn(
          "group/sidebar-wrapper flex min-h-svh w-full has-data-[variant=inset]:bg-sidebar",
          className
        )}
        data-slot="sidebar-wrapper"
        style={
          {
            "--sidebar-width": SIDEBAR_WIDTH,
            "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
            ...style,
          } as React.CSSProperties
        }
        {...props}
      >
        {children}
      </div>
    </SidebarContext.Provider>
  );
}

function Sidebar({
  side = "left",
  variant = "sidebar",
  collapsible = "offcanvas",
  className,
  children,
  dir,
  ...props
}: React.ComponentProps<"div"> & {
  side?: "left" | "right";
  variant?: "sidebar" | "floating" | "inset";
  collapsible?: "offcanvas" | "icon" | "none";
}) {
  const { isMobile, state, openMobile, setOpenMobile } = useSidebar();

  if (collapsible === "none") {
    return (
      <div
        className={cn(
          "flex h-full w-(--sidebar-width) flex-col bg-sidebar text-sidebar-foreground",
          className
        )}
        data-slot="sidebar"
        {...props}
      >
        {children}
      </div>
    );
  }

  if (isMobile) {
    return (
      <Sheet onOpenChange={setOpenMobile} open={openMobile} {...props}>
        <SheetContent
          className="w-(--sidebar-width) bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
          data-mobile="true"
          data-sidebar="sidebar"
          data-slot="sidebar"
          dir={dir}
          side={side}
          style={
            {
              "--sidebar-width": SIDEBAR_WIDTH_MOBILE,
            } as React.CSSProperties
          }
        >
          <SheetHeader className="sr-only">
            <SheetTitle>Sidebar</SheetTitle>
            <SheetDescription>Displays the mobile sidebar.</SheetDescription>
          </SheetHeader>
          <div className="flex h-full w-full flex-col">{children}</div>
        </SheetContent>
      </Sheet>
    );
  }

  return (
    <div
      className="group peer hidden text-sidebar-foreground md:block"
      data-collapsible={state === "collapsed" ? collapsible : ""}
      data-side={side}
      data-slot="sidebar"
      data-state={state}
      data-variant={variant}
    >
      {/* This is what handles the sidebar gap on desktop */}
      <div
        className={cn(
          "relative w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear",
          "group-data-[collapsible=offcanvas]:w-0",
          "group-data-[side=right]:rotate-180",
          variant === "floating" || variant === "inset"
            ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)"
        )}
        data-slot="sidebar-gap"
      />
      <div
        className={cn(
          "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear data-[side=right]:right-0 data-[side=left]:left-0 data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)] data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] md:flex",
          // Adjust the padding for floating and inset variants.
          variant === "floating" || variant === "inset"
            ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=right]:border-s group-data-[side=left]:border-e",
          className
        )}
        data-side={side}
        data-slot="sidebar-container"
        {...props}
      >
        <div
          className="flex size-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:shadow-sm group-data-[variant=floating]:ring-1 group-data-[variant=floating]:ring-sidebar-border"
          data-sidebar="sidebar"
          data-slot="sidebar-inner"
        >
          {children}
        </div>
      </div>
    </div>
  );
}

function SidebarTrigger({
  className,
  onClick,
  ...props
}: React.ComponentProps<typeof Button>) {
  const { toggleSidebar } = useSidebar();

  return (
    <Button
      className={cn(className)}
      data-sidebar="trigger"
      data-slot="sidebar-trigger"
      onClick={(event) => {
        onClick?.(event);
        toggleSidebar();
      }}
      size="icon-sm"
      variant="ghost"
      {...props}
    >
      <PanelLeftIcon className="rtl:rotate-180" />
      <span className="sr-only">Toggle Sidebar</span>
    </Button>
  );
}

function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
  const { toggleSidebar } = useSidebar();

  return (
    <button
      aria-label="Toggle Sidebar"
      className={cn(
        "absolute inset-y-0 z-20 hidden w-4 transition-all ease-linear after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] hover:after:bg-sidebar-border group-data-[side=left]:-right-4 group-data-[side=right]:left-0 sm:flex ltr:-translate-x-1/2 rtl:-translate-x-1/2",
        "in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize rtl:in-data-[side=left]:cursor-e-resize rtl:in-data-[side=right]:cursor-w-resize",
        "[[data-side=left][data-state=collapsed]_&]:cursor-e-resize rtl:[[data-side=left][data-state=collapsed]_&]:cursor-w-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize rtl:[[data-side=right][data-state=collapsed]_&]:cursor-e-resize",
        "group-data-[collapsible=offcanvas]:translate-x-0 hover:group-data-[collapsible=offcanvas]:bg-sidebar group-data-[collapsible=offcanvas]:after:start-full rtl:group-data-[collapsible=offcanvas]:-translate-x-0",
        "[[data-side=left][data-collapsible=offcanvas]_&]:-end-2",
        "[[data-side=right][data-collapsible=offcanvas]_&]:-start-2",
        className
      )}
      data-sidebar="rail"
      data-slot="sidebar-rail"
      onClick={toggleSidebar}
      tabIndex={-1}
      title="Toggle Sidebar"
      {...props}
    />
  );
}

function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
  return (
    <main
      className={cn(
        "relative flex w-full flex-1 flex-col bg-background md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ms-2 md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ms-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:shadow-sm",
        className
      )}
      data-slot="sidebar-inset"
      {...props}
    />
  );
}

function SidebarInput({
  className,
  ...props
}: React.ComponentProps<typeof Input>) {
  return (
    <Input
      className={cn(
        "h-8 w-full border-input bg-muted/20 dark:bg-muted/30",
        className
      )}
      data-sidebar="input"
      data-slot="sidebar-input"
      {...props}
    />
  );
}

function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      className={cn("flex flex-col gap-2 p-2", className)}
      data-sidebar="header"
      data-slot="sidebar-header"
      {...props}
    />
  );
}

function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      className={cn("flex flex-col gap-2 p-2", className)}
      data-sidebar="footer"
      data-slot="sidebar-footer"
      {...props}
    />
  );
}

function SidebarSeparator({
  className,
  ...props
}: React.ComponentProps<typeof Separator>) {
  return (
    <Separator
      className={cn("mx-2 w-auto bg-sidebar-border", className)}
      data-sidebar="separator"
      data-slot="sidebar-separator"
      {...props}
    />
  );
}

function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      className={cn(
        "no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
        className
      )}
      data-sidebar="content"
      data-slot="sidebar-content"
      {...props}
    />
  );
}

function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      className={cn(
        "relative flex w-full min-w-0 flex-col px-2 py-1",
        className
      )}
      data-sidebar="group"
      data-slot="sidebar-group"
      {...props}
    />
  );
}

function SidebarGroupLabel({
  className,
  render,
  ...props
}: useRender.ComponentProps<"div"> & React.ComponentProps<"div">) {
  return useRender({
    defaultTagName: "div",
    props: mergeProps<"div">(
      {
        className: cn(
          "flex h-8 shrink-0 items-center rounded-md px-2 text-sidebar-foreground/70 text-xs outline-hidden ring-sidebar-ring transition-[margin,opacity] duration-200 ease-linear focus-visible:ring-2 group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0 [&>svg]:size-4 [&>svg]:shrink-0",
          className
        ),
      },
      props
    ),
    render,
    state: {
      slot: "sidebar-group-label",
      sidebar: "group-label",
    },
  });
}

function SidebarGroupAction({
  className,
  render,
  ...props
}: useRender.ComponentProps<"button"> & React.ComponentProps<"button">) {
  return useRender({
    defaultTagName: "button",
    props: mergeProps<"button">(
      {
        className: cn(
          "absolute end-3 top-3.5 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground outline-hidden ring-sidebar-ring transition-transform after:absolute after:-inset-2 hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 group-data-[collapsible=icon]:hidden md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
          className
        ),
      },
      props
    ),
    render,
    state: {
      slot: "sidebar-group-action",
      sidebar: "group-action",
    },
  });
}

function SidebarGroupContent({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      className={cn("w-full text-xs", className)}
      data-sidebar="group-content"
      data-slot="sidebar-group-content"
      {...props}
    />
  );
}

function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
  return (
    <ul
      className={cn("flex w-full min-w-0 flex-col gap-px", className)}
      data-sidebar="menu"
      data-slot="sidebar-menu"
      {...props}
    />
  );
}

function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
  return (
    <li
      className={cn("group/menu-item relative", className)}
      data-sidebar="menu-item"
      data-slot="sidebar-menu-item"
      {...props}
    />
  );
}

const sidebarMenuButtonVariants = cva(
  "peer/menu-button group/menu-button flex w-full items-center gap-2 overflow-hidden rounded-[calc(var(--radius-sm)+2px)] p-2 text-start text-xs outline-hidden ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-data-[sidebar=menu-action]/menu-item:pe-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-active:bg-sidebar-accent data-active:font-medium data-active:text-sidebar-accent-foreground data-open:hover:bg-sidebar-accent data-open:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! [&>span:last-child]:truncate [&_svg]:size-4 [&_svg]:shrink-0",
  {
    variants: {
      variant: {
        default: "hover:bg-sidebar-accent hover:text-sidebar-accent-foreground",
        outline:
          "bg-background shadow-[0_0_0_1px_hsl(var(--sidebar-border))] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_hsl(var(--sidebar-accent))]",
      },
      size: {
        default: "h-8 text-xs",
        sm: "h-7 text-xs",
        lg: "h-12 text-xs group-data-[collapsible=icon]:p-0!",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
);

function SidebarMenuButton({
  render,
  isActive = false,
  variant = "default",
  size = "default",
  tooltip,
  className,
  ...props
}: useRender.ComponentProps<"button"> &
  React.ComponentProps<"button"> & {
    isActive?: boolean;
    tooltip?: string | React.ComponentProps<typeof TooltipContent>;
  } & VariantProps<typeof sidebarMenuButtonVariants>) {
  const { isMobile, state } = useSidebar();
  const comp = useRender({
    defaultTagName: "button",
    props: mergeProps<"button">(
      {
        className: cn(sidebarMenuButtonVariants({ variant, size }), className),
      },
      props
    ),
    render: tooltip ? TooltipTrigger : render,
    state: {
      slot: "sidebar-menu-button",
      sidebar: "menu-button",
      size,
      active: isActive,
    },
  });

  if (!tooltip) {
    return comp;
  }

  if (typeof tooltip === "string") {
    tooltip = {
      children: tooltip,
    };
  }

  return (
    <Tooltip>
      {comp}
      <TooltipContent
        align="center"
        hidden={state !== "collapsed" || isMobile}
        side="right"
        {...tooltip}
      />
    </Tooltip>
  );
}

function SidebarMenuAction({
  className,
  render,
  showOnHover = false,
  ...props
}: useRender.ComponentProps<"button"> &
  React.ComponentProps<"button"> & {
    showOnHover?: boolean;
  }) {
  return useRender({
    defaultTagName: "button",
    props: mergeProps<"button">(
      {
        className: cn(
          "absolute end-1 top-1.5 flex aspect-square w-5 items-center justify-center rounded-[calc(var(--radius-sm)-2px)] p-0 text-sidebar-foreground outline-hidden ring-sidebar-ring transition-transform after:absolute after:-inset-2 hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 peer-hover/menu-button:text-sidebar-accent-foreground group-data-[collapsible=icon]:hidden peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
          showOnHover &&
            "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 aria-expanded:opacity-100 peer-data-active/menu-button:text-sidebar-accent-foreground md:opacity-0",
          className
        ),
      },
      props
    ),
    render,
    state: {
      slot: "sidebar-menu-action",
      sidebar: "menu-action",
    },
  });
}

function SidebarMenuBadge({
  className,
  ...props
}: React.ComponentProps<"div">) {
  return (
    <div
      className={cn(
        "pointer-events-none absolute end-1 flex h-5 min-w-5 select-none items-center justify-center rounded-[calc(var(--radius-sm)-2px)] px-1 font-medium text-sidebar-foreground text-xs tabular-nums peer-hover/menu-button:text-sidebar-accent-foreground group-data-[collapsible=icon]:hidden peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 peer-data-active/menu-button:text-sidebar-accent-foreground",
        className
      )}
      data-sidebar="menu-badge"
      data-slot="sidebar-menu-badge"
      {...props}
    />
  );
}

function SidebarMenuSkeleton({
  className,
  showIcon = false,
  ...props
}: React.ComponentProps<"div"> & {
  showIcon?: boolean;
}) {
  // Random width between 50 to 90%.
  const [width] = useState(() => {
    return `${Math.floor(Math.random() * 40) + 50}%`;
  });

  return (
    <div
      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
      data-sidebar="menu-skeleton"
      data-slot="sidebar-menu-skeleton"
      {...props}
    >
      {showIcon && (
        <Skeleton
          className="size-4 rounded-md"
          data-sidebar="menu-skeleton-icon"
        />
      )}
      <Skeleton
        className="h-4 max-w-(--skeleton-width) flex-1"
        data-sidebar="menu-skeleton-text"
        style={
          {
            "--skeleton-width": width,
          } as React.CSSProperties
        }
      />
    </div>
  );
}

function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
  return (
    <ul
      className={cn(
        "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-sidebar-border border-s px-2.5 py-0.5 group-data-[collapsible=icon]:hidden rtl:-translate-x-px",
        className
      )}
      data-sidebar="menu-sub"
      data-slot="sidebar-menu-sub"
      {...props}
    />
  );
}

function SidebarMenuSubItem({
  className,
  ...props
}: React.ComponentProps<"li">) {
  return (
    <li
      className={cn("group/menu-sub-item relative", className)}
      data-sidebar="menu-sub-item"
      data-slot="sidebar-menu-sub-item"
      {...props}
    />
  );
}

function SidebarMenuSubButton({
  render,
  size = "md",
  isActive = false,
  className,
  ...props
}: useRender.ComponentProps<"a"> &
  React.ComponentProps<"a"> & {
    size?: "sm" | "md";
    isActive?: boolean;
  }) {
  return useRender({
    defaultTagName: "a",
    props: mergeProps<"a">(
      {
        className: cn(
          "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground outline-hidden ring-sidebar-ring hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-active:bg-sidebar-accent data-[size=md]:text-xs data-[size=sm]:text-xs data-active:text-sidebar-accent-foreground group-data-[collapsible=icon]:hidden rtl:translate-x-px [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
          className
        ),
      },
      props
    ),
    render,
    state: {
      slot: "sidebar-menu-sub-button",
      sidebar: "menu-sub-button",
      size,
      active: isActive,
    },
  });
}

export {
  Sidebar,
  SidebarContent,
  SidebarFooter,
  SidebarGroup,
  SidebarGroupAction,
  SidebarGroupContent,
  SidebarGroupLabel,
  SidebarHeader,
  SidebarInput,
  SidebarInset,
  SidebarMenu,
  SidebarMenuAction,
  SidebarMenuBadge,
  SidebarMenuButton,
  SidebarMenuItem,
  SidebarMenuSkeleton,
  SidebarMenuSub,
  SidebarMenuSubButton,
  SidebarMenuSubItem,
  SidebarProvider,
  SidebarRail,
  SidebarSeparator,
  SidebarTrigger,
  useSidebar,
};
