"use client";

/**
 * MorePopover — generic secondary-action menu for the selection toolbar.
 *
 * The parent (`TextSelectionToolbar`) owns all side effects and builds
 * the appropriate `items` array based on auth state. Items can be marked
 * `locked` to render a small Lock badge — used for the public flow
 * where every More action sits behind the auth wall.
 */

import { type ReactNode, useEffect, useRef } from "react";
import { createPortal } from "react-dom";
import { Lock } from "lucide-react";
import { type Position } from "./shared";
import {
  Drawer,
  DrawerClose,
  DrawerContent,
  DrawerHeader,
  DrawerTitle,
} from "@/components/ui/drawer";

export type MoreItem = {
  key: string;
  label: string;
  description: string;
  icon: ReactNode;
  onClick: () => void;
  /** Show a lock badge — indicates the action is behind the auth wall. */
  locked?: boolean;
};

export function MorePopover({
  open,
  position,
  onClose,
  items,
  isMobile,
}: {
  open: boolean;
  position: Position;
  onClose: () => void;
  items: MoreItem[];
  isMobile: boolean;
}) {
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    if (!open || isMobile) return;
    function handleClick(e: MouseEvent) {
      if (ref.current && !ref.current.contains(e.target as Node)) onClose();
    }
    // Delay so the click that opened us doesn't immediately fire it.
    const timer = setTimeout(() => {
      document.addEventListener("mousedown", handleClick);
    }, 10);
    return () => {
      clearTimeout(timer);
      document.removeEventListener("mousedown", handleClick);
    };
  }, [open, onClose, isMobile]);

  if (!open) return null;

  // Mobile: bottom drawer
  if (isMobile) {
    return (
      <Drawer open={open} onOpenChange={(o) => !o && onClose()}>
        <DrawerContent className="bg-black dark:bg-[#1a1a1a] border-white/10">
          <DrawerHeader className="text-left border-b border-white/10 pb-4">
            <DrawerTitle className="text-white">More Options</DrawerTitle>
          </DrawerHeader>
          <div className="p-4 space-y-1">
            {items.map((item) => (
              <button
                key={item.key}
                onClick={(e) => {
                  e.stopPropagation();
                  item.onClick();
                }}
                className="flex items-center gap-3 w-full px-3 py-3 rounded-lg text-left hover:bg-white/10 transition-colors"
              >
                <div className="flex items-center justify-center size-10 rounded-lg bg-white/10 text-white/60">
                  {item.icon}
                </div>
                <div className="min-w-0 flex-1">
                  <p className="text-sm font-medium text-white/90 truncate">
                    {item.label}
                  </p>
                  <p className="text-xs text-white/50 truncate">
                    {item.description}
                  </p>
                </div>
                {item.locked ? (
                  <Lock className="size-3.5 text-white/40 shrink-0" />
                ) : null}
              </button>
            ))}
          </div>
          <div className="p-4 pt-0">
            <DrawerClose asChild>
              <button className="w-full py-2.5 rounded-lg border border-white/15 text-sm font-medium text-white/60 hover:bg-white/10 transition-colors">
                Cancel
              </button>
            </DrawerClose>
          </div>
        </DrawerContent>
      </Drawer>
    );
  }

  // Desktop: floating popover anchored to `position`, flipping when it
  // would overflow the viewport.
  const popoverW = 260;
  const popoverH = items.length * 56 + 8;
  const pad = 8;
  let popLeft = position.x;
  let popTop = position.y + 8;
  if (popLeft + popoverW > window.innerWidth - pad) {
    popLeft = window.innerWidth - popoverW - pad;
  }
  if (popLeft < pad) popLeft = pad;
  if (popTop + popoverH > window.innerHeight - pad) {
    popTop = position.y - popoverH - 8;
  }
  if (popTop < pad) popTop = pad;

  return createPortal(
    <div
      ref={ref}
      style={{ position: "fixed", zIndex: 90, left: popLeft, top: popTop }}
      className="w-64 rounded-lg border border-white/10 bg-black shadow-2xl py-1.5 animate-in fade-in-0 zoom-in-95 dark:bg-[#1a1a1a] dark:border-white/15"
    >
      {items.map((item) => (
        <button
          key={item.key}
          onClick={(e) => {
            e.stopPropagation();
            item.onClick();
          }}
          className="flex items-start gap-3 w-full px-3 py-2.5 text-left hover:bg-white/10 transition-colors"
        >
          <span className="text-white/60 mt-0.5">{item.icon}</span>
          <span className="min-w-0 flex-1">
            <span className="block text-sm text-white/90 truncate">
              {item.label}
            </span>
            <span className="block text-xs text-white/50 truncate">
              {item.description}
            </span>
          </span>
          {item.locked ? (
            <Lock className="size-3.5 text-white/40 shrink-0 mt-1" />
          ) : null}
        </button>
      ))}
    </div>,
    document.body,
  );
}