import { TFile, Vault, moment } from "obsidian";
import { Task, Category } from "./types";

export function formatDuration(milliseconds: number): string {
	const totalSeconds = Math.floor(milliseconds / 1000);
	const hours = Math.floor(totalSeconds / 3600);
	const minutes = Math.floor((totalSeconds % 3600) / 60);
	const seconds = totalSeconds % 60;

	if (hours > 0) {
		return `${hours}h ${minutes}m ${seconds}s`;
	} else if (minutes > 0) {
		return `${minutes}m ${seconds}s`;
	} else {
		return `${seconds}s`;
	}
}

export function generateUniqueId(): string {
	return `${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
}

export async function logTaskToDailyNote(
	vault: Vault,
	task: Task,
	category: Category | undefined,
	format: string,
	dailyNotePath: string
): Promise<void> {
	const today = moment().format("YYYY-MM-DD");
	const dailyNoteFileName = `${today}.md`;

	let dailyNoteFolderPath = dailyNotePath.trim();
	if (dailyNoteFolderPath && !dailyNoteFolderPath.endsWith("/")) {
		dailyNoteFolderPath += "/";
	}

	const fullPath = `${dailyNoteFolderPath}${dailyNoteFileName}`;

	let file = vault.getAbstractFileByPath(fullPath);

	if (!file || !(file instanceof TFile)) {
		const folder = dailyNoteFolderPath.slice(0, -1);
		if (folder && !vault.getAbstractFileByPath(folder)) {
			await vault.createFolder(folder);
		}
		file = await vault.create(fullPath, "");
	}

	if (file instanceof TFile) {
		const duration = formatDuration(task.totalElapsed);
		const logEntry = format
			.replace("{{title}}", task.title)
			.replace("{{duration}}", duration)
			.replace("{{emoji}}", category?.emoji || "")
			.replace("{{category}}", category?.name || "");

		const content = await vault.read(file);
		const newContent = content ? `${content}\n${logEntry}` : logEntry;
		await vault.modify(file, newContent);
	}
}