import { Copy } from "lucide-react";
import { useState } from "react";
import { Button } from "@/components/ui/button";
import { useToast } from "@/hooks/use-toast";

interface LineNumberedTextProps {
	content: string;
	fontSizeClass?: string;
	onLineClick?: (lineNumber: number) => void;
	highlightedLine?: number;
}

export function LineNumberedText({
	content,
	fontSizeClass = "text-size-md",
	onLineClick,
	highlightedLine,
}: LineNumberedTextProps) {
	const { toast } = useToast();
	const [hoveredLine, setHoveredLine] = useState<number | null>(null);

	// Split content into lines
	const lines = content.split("\n");

	const handleLineHover = (lineNumber: number) => {
		setHoveredLine(lineNumber);
	};

	const handleLineLeave = () => {
		setHoveredLine(null);
	};

	const handleCopyLine = (_lineNumber: number, lineText: string) => {
		navigator.clipboard.writeText(lineText);
		toast({
			description: "Line copied to clipboard",
			duration: 2000,
		});
	};

	const handleCopyLineLink = (lineNumber: number) => {
		const url = new URL(window.location.href);
		url.hash = `line-${lineNumber}`;
		navigator.clipboard.writeText(url.toString());
		toast({
			description: "Link to line copied to clipboard",
			duration: 2000,
		});
	};

	return (
		<div className={`reading-text ${fontSizeClass}`}>
			{lines.map((line, index) => {
				const lineNumber = index + 1;
				const isHighlighted = lineNumber === highlightedLine;
				const isHovered = lineNumber === hoveredLine;

				return (
					<div
						key={`line-${lineNumber}`}
						id={`line-${lineNumber}`}
						className={`text-line group ${
							isHighlighted
								? "bg-navy/10 dark:bg-cream/10"
								: "hover:bg-navy/5 dark:hover:bg-cream/5"
						} py-1 rounded flex`}
						onMouseEnter={() => handleLineHover(lineNumber)}
						onMouseLeave={handleLineLeave}
						onClick={() => onLineClick?.(lineNumber)}
					>
						<span className="line-number">{lineNumber}</span>
						<p className="flex-1">{line}</p>

						{/* Copy buttons that appear on hover */}
						{isHovered && (
							<div className="flex items-center gap-1 opacity-0 group-hover:opacity-100 transition-opacity ml-2">
								<Button
									variant="ghost"
									size="icon"
									className="h-6 w-6"
									onClick={(e) => {
										e.stopPropagation();
										handleCopyLine(lineNumber, line);
									}}
								>
									<Copy className="h-4 w-4" />
									<span className="sr-only">Copy line</span>
								</Button>
								<Button
									variant="ghost"
									size="icon"
									className="h-6 w-6"
									onClick={(e) => {
										e.stopPropagation();
										handleCopyLineLink(lineNumber);
									}}
								>
									<svg
										xmlns="http://www.w3.org/2000/svg"
										viewBox="0 0 24 24"
										fill="none"
										stroke="currentColor"
										strokeWidth="2"
										strokeLinecap="round"
										strokeLinejoin="round"
										className="h-4 w-4"
									>
										<path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71" />
										<path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71" />
									</svg>
									<span className="sr-only">Copy link to line</span>
								</Button>
							</div>
						)}
					</div>
				);
			})}
		</div>
	);
}