"use client";

import React, {
  useState,
  useEffect,
  forwardRef,
  useImperativeHandle,
} from "react";
import { Input } from "@/app/_components/ui/input";
import { motion, AnimatePresence } from "framer-motion";
import {
  Search,
  Send,
  BarChart2,
  Globe,
  Video,
  PlaneTakeoff,
  AudioLines,
} from "lucide-react";
import useDebounce from "@/app/_hooks/use-debounce";

interface Action {
  id: string;
  label: string;
  icon: React.ReactNode;
  description?: string;
  short?: string;
  end?: string;
}

interface SearchResult {
  actions: Action[];
}

const allActions = [
  {
    id: "1",
    label: "Book tickets",
    icon: <PlaneTakeoff className="h-4 w-4 text-blue-500" />,
    description: "Operator",
    short: "⌘K",
    end: "Agent",
  },
  {
    id: "2",
    label: "Summarize",
    icon: <BarChart2 className="h-4 w-4 text-orange-500" />,
    description: "gpt-4o",
    short: "⌘cmd+p",
    end: "Command",
  },
  {
    id: "3",
    label: "Screen Studio",
    icon: <Video className="h-4 w-4 text-purple-500" />,
    description: "gpt-4o",
    short: "",
    end: "Application",
  },
  {
    id: "4",
    label: "Talk to Jarvis",
    icon: <AudioLines className="h-4 w-4 text-green-500" />,
    description: "gpt-4o voice",
    short: "",
    end: "Active",
  },
  {
    id: "5",
    label: "Translate",
    icon: <Globe className="h-4 w-4 text-blue-500" />,
    description: "gpt-4o",
    short: "",
    end: "Command",
  },
];

interface ActionSearchBarProps {
  actions?: Action[];
  autoFocus?: boolean;
  isFloating?: boolean;
}

const ActionSearchBar = forwardRef<HTMLInputElement, ActionSearchBarProps>(
  ({ actions = allActions, autoFocus = false, isFloating = false }, ref) => {
    const [query, setQuery] = useState("");
    const [result, setResult] = useState<SearchResult | null>(null);
    const [isFocused, setIsFocused] = useState(autoFocus);
    const [selectedAction, setSelectedAction] = useState<Action | null>(null);
    const debouncedQuery = useDebounce(query, 200);
    const inputRef = React.useRef<HTMLInputElement>(null);

    useImperativeHandle(ref, () => inputRef.current as HTMLInputElement);

    useEffect(() => {
      if (autoFocus && inputRef.current) {
        inputRef.current.focus();
      }
    }, [autoFocus]);

    useEffect(() => {
      if (!debouncedQuery) {
        setResult({ actions: allActions });
        return;
      }

      const normalizedQuery = debouncedQuery.toLowerCase().trim();
      const filteredActions = allActions.filter((action) => {
        const searchableText = action.label.toLowerCase();
        return searchableText.includes(normalizedQuery);
      });

      setResult({ actions: filteredActions });
    }, [debouncedQuery]);

    const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
      setQuery(e.target.value);
    };

    const container = {
      hidden: { opacity: 0, height: 0 },
      show: {
        opacity: 1,
        height: "auto",
        transition: {
          height: {
            duration: 0.4,
          },
          staggerChildren: 0.1,
        },
      },
      exit: {
        opacity: 0,
        height: 0,
        transition: {
          height: {
            duration: 0.3,
          },
          opacity: {
            duration: 0.2,
          },
        },
      },
    };

    const item = {
      hidden: { opacity: 0, y: 20 },
      show: {
        opacity: 1,
        y: 0,
        transition: {
          duration: 0.3,
        },
      },
      exit: {
        opacity: 0,
        y: -10,
        transition: {
          duration: 0.2,
        },
      },
    };

    return (
      <div
        className={`relative w-full ${isFloating ? "bg-background rounded-lg shadow-lg" : ""}`}
      >
        <div className="relative">
          <Input
            ref={inputRef}
            type="text"
            placeholder="What's up?"
            value={query}
            onChange={handleInputChange}
            onFocus={() => setIsFocused(true)}
            onBlur={() =>
              !isFloating && setTimeout(() => setIsFocused(false), 200)
            }
            className="pl-3 pr-9 py-1.5 h-9 text-sm rounded-lg focus-visible:ring-offset-0"
          />
          <div className="absolute right-3 top-1/2 -translate-y-1/2 h-4 w-4">
            <AnimatePresence mode="popLayout">
              {query.length > 0 ? (
                <motion.div
                  key="send"
                  initial={{ y: -20, opacity: 0 }}
                  animate={{ y: 0, opacity: 1 }}
                  exit={{ y: 20, opacity: 0 }}
                  transition={{ duration: 0.2 }}
                >
                  <Send className="w-4 h-4 text-gray-400 dark:text-gray-500" />
                </motion.div>
              ) : (
                <motion.div
                  key="search"
                  initial={{ y: -20, opacity: 0 }}
                  animate={{ y: 0, opacity: 1 }}
                  exit={{ y: 20, opacity: 0 }}
                  transition={{ duration: 0.2 }}
                >
                  <Search className="w-4 h-4 text-gray-400 dark:text-gray-500" />
                </motion.div>
              )}
            </AnimatePresence>
          </div>
        </div>

        <AnimatePresence>
          {(isFocused || isFloating) && result && !selectedAction && (
            <motion.div
              className={`${isFloating ? "relative mt-2" : "absolute left-0 right-0 z-50"} border rounded-md shadow-lg overflow-hidden dark:border-gray-800 bg-background`}
              variants={container}
              initial="hidden"
              animate="show"
              exit="exit"
            >
              <motion.ul>
                {result.actions.map((action) => (
                  <motion.li
                    key={action.id}
                    className="px-3 py-2 flex items-center justify-between hover:bg-accent hover:text-accent-foreground cursor-pointer"
                    variants={item}
                    layout
                    onClick={() => setSelectedAction(action)}
                  >
                    <div className="flex items-center gap-2 justify-between">
                      <div className="flex items-center gap-2">
                        <span className="text-gray-500">{action.icon}</span>
                        <span className="text-sm font-medium">
                          {action.label}
                        </span>
                        <span className="text-xs text-muted-foreground">
                          {action.description}
                        </span>
                      </div>
                    </div>
                    <div className="flex items-center gap-2">
                      <span className="text-xs text-muted-foreground">
                        {action.short}
                      </span>
                      <span className="text-xs text-muted-foreground text-right">
                        {action.end}
                      </span>
                    </div>
                  </motion.li>
                ))}
              </motion.ul>
              <div className="mt-2 px-3 py-2 border-t border-border">
                <div className="flex items-center justify-between text-xs text-muted-foreground">
                  <span>Press ⌘K to open commands</span>
                  <span>ESC to cancel</span>
                </div>
              </div>
            </motion.div>
          )}
        </AnimatePresence>
      </div>
    );
  }
);

ActionSearchBar.displayName = "ActionSearchBar";

export default ActionSearchBar;