"use client";

import { useState, useEffect, useRef } from "react";
import { createPortal } from "react-dom";
import { useCopyFeedback, type Position } from "./shared";
import { buildHighlightUrl } from "@/lib/text-highlight";
import { cn } from "@/lib/utils";
import { Bookmark, FolderPlus, Link2, AtSign, Check } from "lucide-react";
import {
  Drawer,
  DrawerClose,
  DrawerContent,
  DrawerHeader,
  DrawerTitle,
} from "@/components/ui/drawer";

export function MorePopover({
  open,
  position,
  onClose,
  onBookmark,
  onSaveToCollection,
  onMention,
  isMobile,
  selectedText,
}: {
  open: boolean;
  position: Position;
  onClose: () => void;
  onBookmark: () => void;
  onSaveToCollection: () => void;
  onMention: () => void;
  isMobile: boolean;
  selectedText: string;
}) {
  const ref = useRef<HTMLDivElement>(null);
  const { copied, copy } = useCopyFeedback();

  useEffect(() => {
    if (!open || isMobile) return;
    function handleClick(e: MouseEvent) {
      if (ref.current && !ref.current.contains(e.target as Node)) {
        onClose();
      }
    }
    const timer = setTimeout(() => {
      document.addEventListener("mousedown", handleClick);
    }, 10);
    return () => {
      clearTimeout(timer);
      document.removeEventListener("mousedown", handleClick);
    };
  }, [open, onClose, isMobile]);

  if (!open) return null;

  const actions = [
    {
      key: "bookmark",
      label: "Add Bookmark",
      description: "Save your place",
      icon: <Bookmark className="size-5" />,
      onClick: onBookmark,
    },
    {
      key: "collection",
      label: "Save to Collection",
      description: "Organize into a collection",
      icon: <FolderPlus className="size-5" />,
      onClick: onSaveToCollection,
    },
    {
      key: "copy-link",
      label: copied ? "Link Copied!" : "Copy Link",
      description: "Copy a link to this page",
      icon: copied ? (
        <Check className="size-5" />
      ) : (
        <Link2 className="size-5" />
      ),
      onClick: () => copy(buildHighlightUrl(selectedText)),
    },
    {
      key: "mention",
      label: "Mention",
      description: "Tag someone with this quote",
      icon: <AtSign className="size-5" />,
      onClick: onMention,
    },
  ];

  // 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">
            {actions.map((action) => (
              <button
                key={action.key}
                onClick={(e) => {
                  e.stopPropagation();
                  action.onClick();
                  if (action.key !== "copy-link") {
                    onClose();
                  }
                }}
                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">
                  {action.icon}
                </div>
                <div>
                  <p className="text-sm font-medium text-white/90">
                    {action.label}
                  </p>
                  <p className="text-xs text-white/50">{action.description}</p>
                </div>
              </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
  const popoverW = 220;
  const popoverH = actions.length * 44 + 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;
  }

  const style: React.CSSProperties = {
    position: "fixed",
    zIndex: 90,
    left: popLeft,
    top: popTop,
  };

  return createPortal(
    <div
      ref={ref}
      style={style}
      className="w-55 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"
    >
      {actions.map((action) => (
        <button
          key={action.key}
          onClick={(e) => {
            e.stopPropagation();
            action.onClick();
            if (action.key !== "copy-link") {
              onClose();
            }
          }}
          className="flex items-center gap-3 w-full px-4 py-2.5 text-sm text-white/90 hover:bg-white/10 transition-colors text-left"
        >
          <span className="text-white/50">{action.icon}</span>
          {action.label}
        </button>
      ))}
    </div>,
    document.body,
  );
}