"use client";

import { ArrowRightIcon } from "@repo/ui/icons";
import Image from "next/image";
import React, { useEffect, useMemo, useState } from "react";
import Divider from "@repo/ui/shadcn/divider";
import { useRouter } from "next/navigation";
import { getSpaces } from "@/app/actions/fetchers";
import Combobox from "@repo/ui/shadcn/combobox";
import { MinusIcon } from "lucide-react";
import { toast } from "sonner";
import { createSpace } from "@/app/actions/doers";

function QueryInput({
	initialQuery = "",
	initialSpaces = [],
	disabled = false,
	className,
	mini = false,
	handleSubmit,
	setInitialSpaces,
}: {
	initialQuery?: string;
	initialSpaces?: {
		id: number;
		name: string;
	}[];
	disabled?: boolean;
	className?: string;
	mini?: boolean;
	handleSubmit: (q: string, spaces: { id: number; name: string }[]) => void;
	setInitialSpaces?: React.Dispatch<
		React.SetStateAction<{ id: number; name: string }[]>
	>;
}) {
	const [q, setQ] = useState(initialQuery);

	const [selectedSpaces, setSelectedSpaces] = useState<number[]>([]);

	const options = useMemo(
		() =>
			initialSpaces.map((x) => ({
				label: x.name,
				value: x.id.toString(),
			})),
		[initialSpaces],
	);

	const preparedSpaces = useMemo(
		() =>
			initialSpaces
				.filter((x) => selectedSpaces.includes(x.id))
				.map((x) => {
					return {
						id: x.id,
						name: x.name,
					};
				}),
		[selectedSpaces, initialSpaces],
	);

	return (
		<div className={`${className}`}>
			<div
				className={`bg-secondary border-2 border-b-0 border-border ${!mini ? "rounded-t-3xl" : "rounded-3xl"}`}
			>
				{/* input and action button */}
				<form
					action={async () => {
						handleSubmit(q, preparedSpaces);
						setQ("");
					}}
					className="flex gap-4 p-3"
				>
					<textarea
						autoFocus
						name="q"
						cols={30}
						rows={mini ? 2 : 4}
						className="bg-transparent pt-2.5 text-base placeholder:text-[#9B9B9B] focus:text-gray-200 duration-200 tracking-[3%] outline-none resize-none w-full p-4"
						placeholder="Ask your second brain..."
						onKeyDown={(e) => {
							if (e.key === "Enter" && !e.shiftKey) {
								e.preventDefault();
								if (q.trim().length === 0) {
									return;
								}
								handleSubmit(q, preparedSpaces);
								setQ("");
							}
						}}
						onChange={(e) => setQ(e.target.value)}
						value={q}
						disabled={disabled}
					/>

					<button
						type="submit"
						onClick={(e) => {
							e.preventDefault();
							if (q.trim().length === 0) {
								return;
							}
							handleSubmit(q, preparedSpaces);
						}}
						disabled={disabled}
						className="h-12 w-12 rounded-[14px] bg-border all-center shrink-0 hover:brightness-125 duration-200 outline-none focus:outline focus:outline-primary active:scale-90"
					>
						<Image src={ArrowRightIcon} alt="Right arrow icon" />
					</button>
				</form>
			</div>
			{/* selected sources */}
			{!mini && (
				<>
					<Divider />
					<div className="flex justify-between items-center gap-6 h-auto bg-secondary rounded-b-3xl border-2 border-border">
						<Combobox
							options={options}
							className="rounded-bl-3xl bg-[#3C464D] w-44"
							onSelect={(v) =>
								setSelectedSpaces((prev) => {
									if (v === "") {
										return [];
									}
									return [...prev, parseInt(v)];
								})
							}
							onSubmit={async (spaceName) => {
								const space = options.find((x) => x.label === spaceName);
								toast.info("Creating space...");

								if (space) {
									toast.error("A space with that name already exists.");
								}

								const creationTask = await createSpace(spaceName);
								if (creationTask.success && creationTask.data) {
									toast.success("Space created " + creationTask.data);
									setInitialSpaces?.((prev) => [
										...prev,
										{
											name: spaceName,
											id: creationTask.data!,
										},
									]);
									setSelectedSpaces((prev) => [...prev, creationTask.data!]);
								} else {
									toast.error(
										"Space creation failed: " + creationTask.error ??
											"Unknown error",
									);
								}
							}}
							placeholder="Chat with a space..."
						/>

						<div className="flex flex-row gap-0.5 h-full">
							{preparedSpaces.map((x, idx) => (
								<button
									key={x.id}
									onClick={() =>
										setSelectedSpaces((prev) => prev.filter((y) => y !== x.id))
									}
									className={`relative group p-2 py-3 bg-[#3C464D] max-w-32 ${idx === preparedSpaces.length - 1 ? "rounded-br-xl" : ""}`}
								>
									<p className="line-clamp-1">{x.name}</p>
									<div className="absolute h-full right-0 top-0 p-1 opacity-0 group-hover:opacity-100 items-center">
										<MinusIcon className="w-6 h-6 rounded-full bg-secondary" />
									</div>
								</button>
							))}
						</div>
					</div>
				</>
			)}
		</div>
	);
}

export default QueryInput;