import { Reply, MoreVertical, Trash2, Check } from "lucide-react";
import { Link } from "@remix-run/react";

import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "../ui/dropdown-menu";

import { formatTime, formatDate2 } from "../../utils/helpers";
import { MessageList, ThreadParticipant } from "../../../src/api/types/models";
import { Dialog, DialogContent, DialogOverlay } from "../ui/dialog";
import { Button } from "../ui/button";
import { useState, useRef, useEffect } from "react";

// Message bubble component
//
// isCurrentUser: whether this message belongs to "our side" of the chat.
//   In seller-side threads that includes coworkers, not just yourself.
// isCoworker: this message was written by a teammate (owner or staff) other
//   than the viewer. We still put it on the right side, but we surface the
//   sender's name so you can tell who typed it — and we don't offer to
//   delete it (backend only lets a user delete their own messages).
export const MessageBubble = ({
  message,
  isCurrentUser,
  isCoworker = false,
  onReply,
  onDelete,
  replyToMessageContent,
  onReplyClick,
  isHighlighted = false,
  otherParticipant,
}: {
  message: MessageList;
  isCurrentUser: boolean;
  isCoworker?: boolean;
  onReply: (message: MessageList) => void;
  onDelete?: (messageId: string) => void;
  replyToMessageContent?: string | undefined;
  onReplyClick?: (replyToId: string) => void;
  isHighlighted?: boolean;
  otherParticipant: ThreadParticipant | undefined;
}) => {
  const [showDeleteDialog, setShowDeleteDialog] = useState(false);
  const [showDropdownMenu, setShowDropdownMenu] = useState(false);
  const messageRef = useRef<HTMLDivElement>(null);

  useEffect(() => {
    if (isHighlighted && messageRef.current) {
      messageRef.current.classList.add("highlight-message");

      // Remove highlight after animation completes
      const timeout = setTimeout(() => {
        if (messageRef.current) {
          messageRef.current.classList.remove("highlight-message");
        }
      }, 1500);

      return () => clearTimeout(timeout);
    }
  }, [isHighlighted]);
  return (
    <>
      <div
        className={`flex items-end gap-1 ${!isCurrentUser ? "flex-row-reverse" : "justify-start flex-row"} mb-2`}
      >
        <div
          ref={messageRef}
          className={`rounded-xl px-4 py-3 max-w-[70%] ${
            isCurrentUser ? "bg-BLUE2 text-WHITE" : "bg-GRAY3"
          }`}
        >
          {isCoworker && message.senderUsername && (
            <div className="text-R10 text-WHITE/80 mb-1 font-bold">
              {message.senderUsername}
            </div>
          )}
          {message.replyTo && (
            <div
              className={`text-xs italic mb-1 pb-1 border-b ${
                isCurrentUser ? "border-WHITE/30" : "border-GRAY2/30"
              } cursor-pointer hover:opacity-80`}
              onClick={() => onReplyClick?.(message.replyTo || "")}
              onKeyDown={(e) => {
                if (e.key === "Enter" || e.key === " ") {
                  onReplyClick?.(message.replyTo || "");
                }
              }}
              role="button"
              tabIndex={0}
              aria-label="پیام اصلی را نمایش بده"
            >
              {/* Display replied message content if available */}
              {replyToMessageContent || "پاسخ به پیام"}
            </div>
          )}
          {message.product && (
            <Link
              to={`/product/${message.product.id}`}
              className="flex items-center gap-2 mb-1 w-[210px] max-w-full rounded-lg bg-WHITE border border-GRAY3 p-2"
            >
              {message.product.primaryImage ? (
                <img
                  src={message.product.primaryImage}
                  alt=""
                  className="w-12 h-12 rounded-md object-cover shrink-0"
                />
              ) : (
                <div className="w-12 h-12 rounded-md bg-WHITE3 shrink-0" />
              )}
              <div className="min-w-0 text-right">
                <p className="text-R12 text-BLACK truncate">
                  {message.product.title}
                </p>
                {message.product.basePrice && (
                  <p className="text-R10 text-GRAY mt-0.5">
                    {parseInt(message.product.basePrice).toLocaleString("fa-IR")}{" "}
                    تومان
                  </p>
                )}
              </div>
            </Link>
          )}
          {message.imageUrl && (
            <img
              src={message.imageUrl}
              alt=""
              className="max-w-[240px] rounded-lg mb-1 cursor-pointer"
              onClick={() => window.open(message.imageUrl, "_blank")}
            />
          )}
          {message.content && <p className="whitespace-pre-wrap">{message.content}</p>}
        </div>
        <div className="flex flex-col justify-between items-start">
          <div className="flex flex-col gap-1 items-start">
            <DropdownMenu
              open={showDropdownMenu}
              onOpenChange={setShowDropdownMenu}
              modal={false}
            >
              <DropdownMenuTrigger asChild>
                <button
                  onClick={() => setShowDropdownMenu(true)}
                  className="w-5 h-5 hover:bg-GRAY2 rounded-full flex items-center justify-center cursor-pointer"
                  aria-label="more options icon"
                >
                  <MoreVertical size={14} />
                </button>
              </DropdownMenuTrigger>
              <DropdownMenuContent align="end" className="w-32 z-1">
                <DropdownMenuItem
                  onClick={() => onReply(message)}
                  className="cursor-pointer justify-end"
                >
                  <Reply size={14} />
                  <span className="text-R12">پاسخ</span>
                </DropdownMenuItem>
                {isCurrentUser && !isCoworker && (
                  <DropdownMenuItem
                    onClick={() => {
                      setShowDropdownMenu(false);
                      setShowDeleteDialog(true);
                    }}
                    className="cursor-pointer text-red-500 justify-end"
                  >
                    <Trash2 size={14} />
                    <span className="text-R12">حذف پیام</span>
                  </DropdownMenuItem>
                )}
              </DropdownMenuContent>
            </DropdownMenu>
          </div>
          <div className="flex items-center gap-1">
            <p
              className={`text-R10 ${
                !isCurrentUser ? "text-right" : "text-left"
              } text-GRAY`}
            >
              {formatTime(message.createdAt || "")}
            </p>
            {isCurrentUser && (
              <div className="text-GRAY">
                {new Date(message.createdAt || "").getTime() <
                new Date(otherParticipant?.lastReadAt || "").getTime() ? (
                  <div className="flex items-center">
                    <Check size={12} className="text-blue-500" />
                    <Check
                      size={12}
                      className="text-blue-500 relative left-2"
                    />
                  </div>
                ) : (
                  <Check size={12} />
                )}
              </div>
            )}
          </div>
        </div>
      </div>
      <DeleteConfirmBox
        showDeleteDialog={showDeleteDialog}
        setShowDeleteDialog={setShowDeleteDialog}
        confirmDelete={() => onDelete?.(message.id || "")}
      />
    </>
  );
};
const DeleteConfirmBox = ({
  showDeleteDialog,
  setShowDeleteDialog,
  confirmDelete,
}: {
  showDeleteDialog: boolean;
  setShowDeleteDialog: (show: boolean) => void;
  confirmDelete: () => void;
}) => {
  return (
    <Dialog open={showDeleteDialog} onOpenChange={setShowDeleteDialog}>
      <DialogOverlay className="bg-BLACK/20" />
      <DialogContent className="p-4 bg-WHITE rounded-[15px] w-[calc(100%-40px)]">
        <div className="flex flex-col gap-10">
          <div className="flex flex-col gap-3 items-center w-full">
            <Trash2 size={24} className="text-RED" />
            <p className="text-B12 font-bold mt-1">حذف پیام</p>
            <p className="text-R12">میخواهید این پیام را حذف کنید؟</p>
          </div>
          <div className="flex flex-row gap-6 w-full">
            <Button
              className="w-[100%]"
              size={"sm"}
              variant="dark"
              onClick={() => setShowDeleteDialog(false)}
            >
              انصراف
            </Button>
            <Button
              className="w-[100%]"
              size={"sm"}
              variant="primary"
              onClick={() => {
                confirmDelete();
                setShowDeleteDialog(false);
              }}
            >
              حذف پیام
            </Button>
          </div>
        </div>
      </DialogContent>
    </Dialog>
  );
};
// Date separator component
export const DateSeparator = ({ date }: { date: string }) => {
  return (
    <div className="flex items-center justify-center my-4">
      <div className="border-t border-GRAY3 flex-grow"></div>
      <div className="px-3 text-R12 text-GRAY">{formatDate2(date)}</div>
      <div className="border-t border-GRAY3 flex-grow"></div>
    </div>
  );
};