import * as vscode from "vscode";
import * as path from 'path';
import {getWorkspaceFolder } from '../utils/workspace';

export class CustomCodeLensProvider implements vscode.CodeLensProvider {
	private onDidChangeCodeLensesEmitter: vscode.EventEmitter<void> =
		new vscode.EventEmitter<void>();
	context: any;

	get onDidChangeCodeLenses(): vscode.Event<void> {
		return this.onDidChangeCodeLensesEmitter.event;
	}

	public refresh(): void {
		this.onDidChangeCodeLensesEmitter.fire();
	}

	public provideCodeLenses(
		document: vscode.TextDocument
	): vscode.ProviderResult<vscode.CodeLens[]> {
		const content: string = document.getText();
		let ext: string | undefined;
		if (document.fileName.endsWith(".md")) {
			ext = "md";
		}
		if (document.fileName.endsWith(".js")) {
			ext = "js";
		}
		let codeLensLine: number = document.lineCount - 1;
		for (let i: number = document.lineCount - 1; i >= 0; i--) {
			const lineContent: string = document.lineAt(i).text;
			if (ext === "md" && lineContent.indexOf("*[攀峰]: end") >= 0) {
				codeLensLine = i + 1;
				break;
			}
			if (ext === "js" && lineContent.indexOf("// @interview end") >= 0) {
				codeLensLine = i;
				break;
			}
		}

		if (ext === void 0) {
			return [];
		}

		if (
			(content.indexOf("*[攀峰]: start") < 0 ||
				content.indexOf("*[攀峰]: end") < 0) &&
			ext === "md"
		) {
			return [];
		}

		if (
			(content.indexOf("// @interview start") < 0 ||
				content.indexOf("// @interview end") < 0) &&
			ext === "js"
		) {
			return [];
		}

		const range: vscode.Range = new vscode.Range(
			codeLensLine,
			0,
			codeLensLine,
			0
		);
		const codeLens: vscode.CodeLens[] = [];

		codeLens.push(
			new vscode.CodeLens(range, {
				title: '✅ 提交答案', 
				command: "panfeng.postAnswer",
				arguments: [document, content],
			})
		);

		codeLens.push(
			new vscode.CodeLens(range, {
				title: "👀 查看题解",
				command: "panfeng.openAnswer",
				arguments: [document],
			})
		);

		// codeLens.push(
		// 	new vscode.CodeLens(range, {
		// 		title: "🐦 保存到语雀",
		// 		command: "panfeng.YQsave",
		// 		arguments: [document, content],
		// 	})
		// );

		// codeLens.push(
		// 	new vscode.CodeLens(range, {
		// 		title: "👍 分享题目",
		// 		command: "panfeng.sharePoster",
		// 		arguments: [content],
		// 	})
		// );
		return codeLens;
	}
}

export const customCodeLensProvider: CustomCodeLensProvider =
	new CustomCodeLensProvider();