"use client";
import Link from "next/link";
import {
  MdAutorenew,
  MdMic,
  MdMicOff,
  MdSend,
  MdSettings,
} from "react-icons/md";
import Button from "../components/ui/Button";
import Card from "../components/ui/Card";
import PageHeading from "../components/ui/PageHeading";
import ChatMessages from "./components/ChatMessages";
import { useQuestion } from "./hooks/useQuestion";
import { useSpeech } from "./hooks/useSpeech";

export default function ChatPage() {
  const {
    history,
    isPending,
    question,
    askQuestion,
    setQuestion,
    resetHistory,
  } = useQuestion();
  const { isListening, speechSupported, startListening } = useSpeech();

  return (
    <main className="min-h-0 w-full flex flex-col pt-32 flex-1 overflow-hidden">
      <section className="flex flex-col justify-center items-center gap-5 h-full overflow-auto style={{ marginBottom: '20px'}}">
        <PageHeading
          title="Chat with your brain"
          subtitle="Talk to a language model about your uploaded data"
        />
        {/* Chat */}
        <Card className="py-4 max-w-3xl w-full  flex-1 md:mb-24 overflow-auto flex flex-col hover:shadow-none shadow-none ">
          <ChatMessages history={history} />
        </Card>
        <Card className="md:fixed md:rounded md:left-1/2 w-full max-w-3xl bg-gray-100  dark:bg-gray-800 md:-translate-x-1/2 md:bottom-16 px-5 py-5 md:mb-5 hover:shadow-none shadow-none">
          <form
            onSubmit={(e) => {
              e.preventDefault();
              if (!isPending) askQuestion();
            }}
            className="w-full flex flex-col md:flex-row items-center justify-center gap-2 "
          >
            <div className="flex gap-1 w-full">
              <input
                autoFocus
                value={question}
                onChange={(e) => setQuestion(e.target.value)}
                onKeyDown={(e) => {
                  if (e.key === "Enter" && !e.shiftKey) {
                    e.preventDefault(); // Prevents the newline from being entered in the textarea
                    if (!isPending) askQuestion(); // Call the submit function here
                  }
                }}
                className="w-full  p-2 border border-gray-300 dark:border-gray-500 outline-none rounded dark:bg-gray-800"
                placeholder="Begin conversation here..."
              />
              <Button type="submit" isLoading={isPending}>
                {isPending ? "" : <MdSend />}
              </Button>
            </div>

            <div className="flex">
              {/* Reset Button */}
              <Button
                className="px-3"
                variant={"tertiary"}
                type="button"
                onClick={resetHistory}
                disabled={isPending}
              >
                <MdAutorenew className="text-2xl" />
              </Button>
              {/* Mic Button */}
              <Button
                className="px-3"
                variant={"tertiary"}
                type="button"
                onClick={startListening}
                disabled={!speechSupported}
              >
                {isListening ? (
                  <MdMicOff className="text-2xl" />
                ) : (
                  <MdMic className="text-2xl" />
                )}
              </Button>
              <Link href={"/config"}>
                <Button className="px-3" variant={"tertiary"}>
                  <MdSettings className="text-2xl" />
                </Button>
              </Link>
            </div>
          </form>
        </Card>
      </section>
    </main>
  );
}