"use strict";

const ERROR_MESSAGES = {
    401: 'Ungültige Anmeldedaten',
    'NetworkError when attempting to fetch resource.': 'Netzwerkfehler',
};

class ApiError extends Error {
    constructor(statusCode, message) {
        super(statusCode + ' - ' + message);
        this.statusCode = statusCode;
        this.name = 'ApiError';
        this.localizedMessage = ERROR_MESSAGES[statusCode];
    }
}

function escapeHTML(str) {
    const p = document.createElement("p");
    p.appendChild(document.createTextNode(str));
    return p.innerHTML;
}

function fmtDate(date) {
    return date.toLocaleDateString('de-AT', {
        day: '2-digit',
        month: '2-digit',
        year: 'numeric',
    });
}

function fmtDateTime(date) {
    return date.toLocaleDateString('de-AT', {
        day: '2-digit',
        month: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
    });
}

function fmtDateWeekday(date) {
    return date.toLocaleDateString('de-AT', {
        weekday: 'long',
    });
}

function fmtOe(oe) {
    return oe.toLocaleString('de-AT', {minimumFractionDigits: 0, maximumFractionDigits: 0});
}

function fmtKmw(kmw) {
    return kmw.toLocaleString('de-AT', {minimumFractionDigits: 1, maximumFractionDigits: 1});
}

function fmtInt(num) {
    return num.toLocaleString('de-AT', {minimumFractionDigits: 0, maximumFractionDigits: 0});
}

function groupBy(list, key) {
    return list.reduce((groups, value) => {
        (groups[value[key]] = groups[value[key]] ?? []).push(value);
        return groups;
    }, {});
}

function getCurrentLastSeason() {
    const date = new Date();
    return date.getFullYear() - ((date.getMonth() + 1) <= 6 ? 1 : 0);
}

function getDefaultQualityLevel(kmw) {
    const list = Object.values(WINE_QUALITY_LEVELS).filter(q => !q['is_predicate']).sort((a, b) => a['min_kmw'] - b['min_kmw']);
    let last = list[0];
    for (const q of list) {
        if (q['min_kmw'] > kmw) {
            return last;
        }
        last = q;
    }
    return last;
}