// Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
// SPDX-License-Identifier: MIT

import { AnimatePresence, motion } from "framer-motion";
import { ArrowUp, X } from "lucide-react";
import { useCallback, useRef } from "react";

import { Detective } from "~/components/deer-flow/icons/detective";
import MessageInput, {
  type MessageInputRef,
} from "~/components/deer-flow/message-input";
import { Tooltip } from "~/components/deer-flow/tooltip";
import { Button } from "~/components/ui/button";
import type { Option, Resource } from "~/core/messages";
import {
  setEnableBackgroundInvestigation,
  useSettingsStore,
} from "~/core/store";
import { cn } from "~/lib/utils";

export function InputBox({
  className,
  responding,
  feedback,
  onSend,
  onCancel,
  onRemoveFeedback,
}: {
  className?: string;
  size?: "large" | "normal";
  responding?: boolean;
  feedback?: { option: Option } | null;
  onSend?: (
    message: string,
    options?: {
      interruptFeedback?: string;
      resources?: Array<Resource>;
    },
  ) => void;
  onCancel?: () => void;
  onRemoveFeedback?: () => void;
}) {
  const backgroundInvestigation = useSettingsStore(
    (state) => state.general.enableBackgroundInvestigation,
  );
  const containerRef = useRef<HTMLDivElement>(null);
  const inputRef = useRef<MessageInputRef>(null);
  const feedbackRef = useRef<HTMLDivElement>(null);

  const handleSendMessage = useCallback(
    (message: string, resources: Array<Resource>) => {
      console.log(message, resources);
      if (responding) {
        onCancel?.();
      } else {
        if (message.trim() === "") {
          return;
        }
        if (onSend) {
          onSend(message, {
            interruptFeedback: feedback?.option.value,
            resources,
          });
          onRemoveFeedback?.();
        }
      }
    },
    [responding, onCancel, onSend, feedback, onRemoveFeedback],
  );

  return (
    <div
      className={cn(
        "bg-card relative flex h-full w-full flex-col rounded-[24px] border",
        className,
      )}
      ref={containerRef}
    >
      <div className="w-full">
        <AnimatePresence>
          {feedback && (
            <motion.div
              ref={feedbackRef}
              className="bg-background border-brand absolute top-0 left-0 mt-2 ml-4 flex items-center justify-center gap-1 rounded-2xl border px-2 py-0.5"
              initial={{ opacity: 0, scale: 0 }}
              animate={{ opacity: 1, scale: 1 }}
              exit={{ opacity: 0, scale: 0 }}
              transition={{ duration: 0.2, ease: "easeInOut" }}
            >
              <div className="text-brand flex h-full w-full items-center justify-center text-sm opacity-90">
                {feedback.option.text}
              </div>
              <X
                className="cursor-pointer opacity-60"
                size={16}
                onClick={onRemoveFeedback}
              />
            </motion.div>
          )}
        </AnimatePresence>
        <MessageInput
          className={cn("h-24 px-4 pt-5", feedback && "pt-9")}
          ref={inputRef}
          onEnter={handleSendMessage}
        />
      </div>
      <div className="flex items-center px-4 py-2">
        <div className="flex grow">
          <Tooltip
            className="max-w-60"
            title={
              <div>
                <h3 className="mb-2 font-bold">
                  Investigation Mode: {backgroundInvestigation ? "On" : "Off"}
                </h3>
                <p>
                  When enabled, DeerFlow will perform a quick search before
                  planning. This is useful for researches related to ongoing
                  events and news.
                </p>
              </div>
            }
          >
            <Button
              className={cn(
                "rounded-2xl",
                backgroundInvestigation && "!border-brand !text-brand",
              )}
              variant="outline"
              onClick={() =>
                setEnableBackgroundInvestigation(!backgroundInvestigation)
              }
            >
              <Detective /> Investigation
            </Button>
          </Tooltip>
        </div>
        <div className="flex shrink-0 items-center gap-2">
          <Tooltip title={responding ? "Stop" : "Send"}>
            <Button
              variant="outline"
              size="icon"
              className={cn("h-10 w-10 rounded-full")}
              onClick={() => inputRef.current?.submit()}
            >
              {responding ? (
                <div className="flex h-10 w-10 items-center justify-center">
                  <div className="bg-foreground h-4 w-4 rounded-sm opacity-70" />
                </div>
              ) : (
                <ArrowUp />
              )}
            </Button>
          </Tooltip>
        </div>
      </div>
    </div>
  );
}