import { App, TFile } 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)}`;
}

async function getDailyNote(app: App): Promise<TFile> {
	const { vault } = app;

	// @ts-ignore - Access internal daily notes API
	const dailyNotesPlugin = app.internalPlugins.plugins["daily-notes"];

	if (!dailyNotesPlugin || !dailyNotesPlugin.enabled) {
		throw new Error("Daily notes plugin is not enabled. Please enable it in Settings → Core plugins.");
	}

	// @ts-ignore - Access daily notes interface
	const { createDailyNote, getDailyNote, getAllDailyNotes } = app.internalPlugins.plugins["daily-notes"].instance;

	// @ts-ignore
	const dailyNotes = getAllDailyNotes();
	// @ts-ignore
	const today = window.moment();
	// @ts-ignore
	let dailyNote = getDailyNote(today, dailyNotes);

	if (!dailyNote) {
		// @ts-ignore
		dailyNote = await createDailyNote(today);
	}

	return dailyNote;
}

export async function logTaskToDailyNote(
	app: App,
	task: Task,
	category: Category | undefined,
	format: string
): Promise<void> {
	try {
		const dailyNote = await getDailyNote(app);

		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 app.vault.read(dailyNote);
		const newContent = content ? `${content}\n${logEntry}` : logEntry;
		await app.vault.modify(dailyNote, newContent);
	} catch (error) {
		console.error("Failed to log task to daily note:", error);
		throw error;
	}
}