import {useAuthStore} from "@/stores/auth.store.ts";
import { DateTime } from "luxon";

export function dateFormatter(date: Date = new Date()): string {
    return `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getDate().toString().padStart(2, '0')}`;
}

export function extractTime(dateTimeString: string, extractTime: boolean = false){
    const date = new Date(dateTimeString);
    if (extractTime) {
        const hours = String(date.getHours()).padStart(2, '0');
        const minutes = String(date.getMinutes()).padStart(2, '0');
        return `${hours}:${minutes}`;
    }
    return date.getFullYear() + '-' + String(date.getMonth() + 1).padStart(2, '0') + '-' + String(date.getDate()).padStart(2, '0');
};

export function getTimeDiff(startTime: Date, endTime: Date) {
    const diffInMilliseconds = Math.abs(startTime.getTime() - endTime.getTime());

    const hours = Math.floor((diffInMilliseconds % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    const minutes = Math.floor((diffInMilliseconds % (1000 * 60 * 60)) / (1000 * 60));

    const formattedHours = String(hours).padStart(2, '0');
    const formattedMinutes = String(minutes).padStart(2, '0');

    return `${formattedHours}:${formattedMinutes}`;
}

export function getHoursMinutesFromString(timeString: string): Date {
    const [ h, m ] = timeString.split(":");
    const ms = new Date().setHours(h,m);
    return new Date(ms)
}

export function convertToUserTimezoneString(dateString: string): string {
    const auth = useAuthStore();
    const timezone = auth.userData.timezone;
    const dateTime = DateTime.fromISO(dateString).setZone(timezone);
    return dateTime.toISO();
}

export function convertToUserTimezoneDate(dateString: string): Date {
    const auth = useAuthStore();
    const timezone = auth.userData.timezone;
    const dateTime = DateTime.fromISO(dateString).setZone(timezone);
    return dateTime.toJSDate();
}

export function convertToUTCString(dateString: string): string {
    const auth = useAuthStore();
    const timezone = auth.userData.timezone;
    const dateTime = DateTime.fromISO(dateString, { zone: timezone });
    return dateTime.toUTC().toISO();
}

export function extractTimeUTC(timeString: string) {
    const [hours, minutes] = timeString.split(':').map(Number);
    const dt = DateTime.now()
        .set({ hour: hours, minute: minutes, second: 0, millisecond: 0 })
        .toUTC();
    return dt.toFormat("HH:mm");
}

export function formatTime(date: Date): string {
    const luxonDate = DateTime.fromJSDate(date);
    return luxonDate.toLocaleString({ hour: 'numeric', minute: 'numeric', hour12: false });
}