import { Plugin } from "obsidian";

export default class PAUL extends Plugin {
	async onload() {
		// Command 추가
		this.addCommand({
			id: 'modified-time-update',
			name: 'Modified time update',
			callback: () => {
				this.readCurrentNote();
			},
		});
	}

	// Actual functions
	readCurrentNote() {
		const activeFile = this.app.workspace.getActiveFile();
		// activeFile이 존재하는지 확인 && 확장자가 md인지 확인
		if (activeFile && activeFile.extension === 'md') {
			this.app.vault.read(activeFile).then(content => {
				const pattern = /Modified: \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}Z/;
				let digit = (inp)=>{ return String(inp).padStart(2, '0') }
				const t = new Date()
				const modified = `Modified: ${t.getFullYear()}-${digit(t.getMonth()+1)}-${digit(t.getDate())}T${digit(t.getHours())}:${digit(t.getMinutes())}:${digit(t.getSeconds())}Z`;

				// Modified 라는 property의 존재여부 확인
				if (content.search(pattern) != -1) {
					this.app.vault.modify(activeFile, content.replace(pattern, modified));
				} else {
					// console.log(content);
					// console.log('No modified yet : ', content.match(/---\n(.+:.+\n)+---/gs));
					const analysis = content.match(/^---\n((?!-{3})(?:(?:.+:.*)|(?:\s{2}-\s.+))\n)+---/);
					// const analysis = content.match(/---\n(.*:.*\n)*---/s);
					// console.log(analysis);
					const pnt = analysis.index + analysis[0].length - 3;
					this.app.vault.modify(activeFile, content.slice(0, pnt) + modified + '\n' + content.slice(pnt));
				}
			});
		}
	}
}