import {env} from '$env/dynamic/private';
import {WorkingHoursRepository} from "$lib/Repositories.svelte";

export function load() {
    return {
        promise: WorkingHoursRepository.browse(env.API_URL)
    };
}

/** @param {Date} actualDayObject **/
const getMonday = actualDayObject => {
    if (actualDayObject.getDate() === 0) {
        actualDayObject.setDate(actualDayObject.getDate() - 7)
    }
    if (actualDayObject.getDate() !== 1) {
        actualDayObject.setDate(actualDayObject.getDate() - (actualDayObject.getDay() - 1))
    }
    return actualDayObject
}

/** @type {String[]} **/
const weekday_list = ['Montag', 'Dienstag', 'Mittwoch', 'Donnerstag', 'Freitag', 'Samstag', 'Sontag']

/** @param {Date} actualDayObject **/
const getDateString = actualDayObject => {
    return actualDayObject.getFullYear() + "-"
        + (actualDayObject.getMonth() + 1).toString().padStart(2, '0') + "-"
        + actualDayObject.getDate().toString().padStart(2, '0')
}

export const actions = {
    update: async ({ request }) => {
        const data = await request.formData();
        const body_data = {
            workingDay: data.get('workingDay'),
            workingTime: data.get('workingTime'),
            isHomeOffice: data.get('isHomeOffice'),
        }
        await WorkingHoursRepository.update(env.API_URL, data.get('workingDay'), body_data);
    },
    create: async ({ request }) => {
        const form_data = await request.formData();
        const body_data = {
            workingDay: form_data.get('workingDay'),
            workingTime: form_data.get('workingTime'),
            isHomeOffice: form_data.get('isHomeOffice'),
        }
        await WorkingHoursRepository.add(env.API_URL, body_data);
    },
    "create-by-week": async ({ request }) => {
        const form_data = await request.formData();
        // @ts-ignore
        let actualDayObject = getMonday(new Date(form_data.get('week')))
        /** @type {Object<String,String>} **/
        let day_list = {}
        weekday_list.forEach(day => {
            day_list[day] = getDateString(actualDayObject)
            actualDayObject.setDate(actualDayObject.getDate() + 1)
        })
        for (const pair of form_data.entries()) {
            let key = /(?<day>\w+)\[time]/.exec(pair[0])
            if (key === null) {
                continue
            }
            let day = key?.groups?.day ?? ''
            const working_day = day_list[day] ?? null
            if (working_day === null || pair[1] === '00:00:00' || pair[1] === '00:00') {
                continue
            }
            const body_data = {
                workingDay: working_day,
                workingTime: pair[1],
                isHomeOffice: form_data.has(day + '[isHomeOffice]')
            }
            await WorkingHoursRepository.addOrUpdate(env.API_URL, working_day, body_data);
        }
    },
    'import-csv': async ({ request }) => {
        const form_data = await request.formData();
        for (const pair of form_data.entries()) {
            let key = /^(?<day>\d{4}-\d{2}-\d{2})\[time]$/.exec(pair[0])
            if (key === null) {
                continue
            }
            let working_day = key?.groups?.day ?? ''
            const body_data = {
                workingDay: working_day,
                workingTime: pair[1],
                isHomeOffice: form_data.has(working_day + '[isHomeOffice]')
            }
            await WorkingHoursRepository.addOrUpdate(env.API_URL, working_day, body_data);
        }
    }
};