import React, { useEffect, useState } from "react";
import { Input, Button } from "antd";
import { DeleteOutlined } from "@ant-design/icons";

interface InputListProps {
	value?: string[];
	onChange?: (value: string[]) => void;
	placeholder?: string;
}

const InputList: React.FC<InputListProps> = ({
	value,
	onChange,
	placeholder = "请输入内容",
}) => {
	// Internal state management with fallback to initial value or empty array
	const [inputValues, setInputValues] = useState<string[]>([""]);

	// Update inputValues when value changes
	useEffect(() => {
		if (value && value.length > 0) {
			setInputValues(value);
		} else {
			setInputValues([""]);
		}
	}, [value]);

	// Handle individual input value change
	const handleInputChange = (index: number, newValue: string) => {
		const newValues = [...inputValues];
		newValues[index] = newValue;

		// Update internal state
		setInputValues(newValues);

		// Call external onChange if provided
		onChange?.(newValues);
	};

	// Handle delete operation
	const handleDelete = (index: number) => {
		const newValues = inputValues.filter((_, i) => i !== index);

		// Ensure at least one input remains
		const finalValues = newValues.length === 0 ? [""] : newValues;

		// Update internal state
		setInputValues(finalValues);

		// Call external onChange if provided
		onChange?.(finalValues);
	};

	// Add new input field
	const handleAdd = () => {
		const newValues = [...inputValues, ""];

		// Update internal state
		setInputValues(newValues);

		// Call external onChange if provided
		onChange?.(newValues);
	};

	return (
		<div className="space-y-2">
			{inputValues.map((item, index) => (
				<div key={index} className="flex items-center space-x-2 group">
					<Input
						value={item}
						onChange={(e) =>
							handleInputChange(index, e.target.value)
						}
						placeholder={placeholder}
						className="flex-grow"
					/>
					{inputValues.length > 1 && (
						<Button
							type="text"
							icon={<DeleteOutlined />}
							danger
							className="opacity-0 group-hover:opacity-100"
							onClick={() => handleDelete(index)}
						/>
					)}
				</div>
			))}
			<div className="flex items-center space-x-2 group">
				<Button
					type="dashed"
					block
					onClick={handleAdd}
					className="w-full">
					添加输入框
				</Button>
				{inputValues.length > 1 && (
					<Button
						type="text"
						icon={<DeleteOutlined />}
						danger
						className="opacity-0"
					/>
				)}
			</div>
		</div>
	);
};

export default InputList;