import { Notice } from "obsidian";
import * as React from "react";

import Context from "../../core/autocomplete/context-detection";
import { FewShotExample } from "../versions";

type IProps = {
	name: string;
	description: string;

	errorMessages: Map<string, string>;

	fewShotExamples: FewShotExample[];
	setFewShotExamples(fewShotExamples: FewShotExample[]): void;
}

export default function FewShotExampleSettings(
	props: IProps
): React.JSX.Element {
	const onClickRemoveButton = (index: number) => {
		return () => {
			const newFewShotExamples = props.fewShotExamples
				.slice(0, index)
				.concat(props.fewShotExamples.slice(index + 1));

			props.setFewShotExamples(newFewShotExamples);
		};
	};
	const onClickAddButton = () => {
		const newFewShotExamples = [
			{
				context: Context.Text,
				input: "TODO",
				answer: "Thought: TODO\nAnswer: TODO",
			},
			...props.fewShotExamples,
		];
		props.setFewShotExamples(newFewShotExamples);
	};

	const onChangeContext = (index: number) => {
		return (e: React.ChangeEvent<HTMLSelectElement>) => {
			const newFewShotExamples = [...props.fewShotExamples];
			const context = Context.get(e.target.value);
			if (context === undefined) {
				new Notice("Invalid context");
				return;
			}
			newFewShotExamples[index] = {
				...newFewShotExamples[index],
				context,
			};

			props.setFewShotExamples(newFewShotExamples);
		};
	};

	const onChangeInput = (index: number) => {
		return (e: React.ChangeEvent<HTMLTextAreaElement>) => {
			const newFewShotExamples = [...props.fewShotExamples];
			newFewShotExamples[index] = {
				...newFewShotExamples[index],
				input: e.target.value,
			};
			props.setFewShotExamples(newFewShotExamples);
		};
	};

	const onAnswerInput = (index: number) => {
		return (e: React.ChangeEvent<HTMLTextAreaElement>) => {
			const newFewShotExamples = [...props.fewShotExamples];
			newFewShotExamples[index] = {
				...newFewShotExamples[index],
				answer: e.target.value,
			};
			props.setFewShotExamples(newFewShotExamples);
		};
	};

	return (
		<div>
			<div className="setting-item" style={{ display: "flex" }}>
				<div className="setting-item-info">
					<div className="setting-item-name">{props.name}</div>

					<div className="setting-item-description">
						{props.description}
					</div>
					{props.errorMessages.get("fewShotExamples") !== undefined && (
						<div className="setting-item-description ">
							<span className={"mod-warning"}>
								{props.errorMessages.get("fewShotExamples")}
							</span>
						</div>
					)}
				</div>
				<div style={{ top: 0, right: 0 }}>
					<span
						className="clickable-icon setting-editor-extra-setting-button"
						aria-label="Add"
						onClick={onClickAddButton}
					>
						<svg
							xmlns="http://www.w3.org/2000/svg"
							width="24"
							height="24"
							viewBox="0 0 24 24"
							fill="none"
							stroke="currentColor"
							strokeWidth="2"
							strokeLinecap="round"
							strokeLinejoin="round"
							className="svg-icon lucide-plus"
						>
							<line x1="12" y1="5" x2="12" y2="19"></line>
							<line x1="5" y1="12" x2="19" y2="12"></line>
						</svg>
					</span>
				</div>
			</div>
			{props.fewShotExamples.map((example, index) => (
				<div
					key={`few-shot-example-${index}`}
					style={{
						borderBottom:
							"1px solid var(--background-modifier-border)",
					}}
				>
					<div className="setting-item" style={{ display: "flex" }}>
						<div className="setting-item-info">
							<div className="setting-item-name">
								Example {index + 1}
							</div>
						</div>
						<div style={{ top: 0, right: 0 }}>
							<span
								className="clickable-icon setting-editor-extra-setting-button"
								aria-label="Remove"
								onClick={onClickRemoveButton(index)}
							>
								<svg
									xmlns="http://www.w3.org/2000/svg"
									width="24"
									height="24"
									viewBox="0 0 24 24"
									fill="none"
									stroke="currentColor"
									strokeWidth="2"
									strokeLinecap="round"
									strokeLinejoin="round"
									className="svg-icon lucide-x"
								>
									<line x1="18" y1="6" x2="6" y2="18"></line>
									<line x1="6" y1="6" x2="18" y2="18"></line>
								</svg>
							</span>
						</div>
					</div>
					<div
						className="setting-item"
						style={{ display: "block", borderTop: 0 }}
					>
						<div className="setting-item-control">
							<div
								className="setting-item-name"
								style={{ textAlign: "left", width: "100%" }}
							>
								Context
							</div>
							<select
								className="dropdown"
								value={example.context}
								onChange={onChangeContext(index)}
							>
								{Context.values().map((key) => (
									<option key={key} value={key}>
										{key}
									</option>
								))}
							</select>
						</div>
						<div
							className="setting-item-control"
							style={{ display: "block" }}
						>
							<div
								className="setting-item-name"
								style={{ width: "100%", textAlign: "left" }}
							>
								Human Message
							</div>
							{props.errorMessages.get(`fewShotExamples.${index}.input`) !== undefined && (
								<div className="setting-item-description" style={{ width: "100%", textAlign: "left" }}>
									<span className={"mod-warning"}>
										{props.errorMessages.get(`fewShotExamples.${index}.input`)}
									</span>
								</div>
							)}
							<textarea
								className="infio-autocomplete-setting-item-textarea"
								rows={5}
								style={{ width: "100%" }}
								value={example.input}
								onChange={onChangeInput(index)}
							/>
							<div
								className="setting-item-name"
								style={{ width: "100%", textAlign: "left" }}
							>
								Assistant Message
							</div>
							{props.errorMessages.get(`fewShotExamples.${index}.answer`) !== undefined && (
								<div className="setting-item-description" style={{ width: "100%", textAlign: "left" }}>
									<span className={"mod-warning"}>
										{props.errorMessages.get(`fewShotExamples.${index}.answer`)}
									</span>
								</div>
							)}
							<textarea
								className="infio-autocomplete-setting-item-textarea"
								rows={5}
								style={{ width: "100%" }}
								value={example.answer}
								onChange={onAnswerInput(index)}
							/>

						</div>
					</div>
				</div>
			))}
		</div>
	);
}