"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.event = event;
exports.todo = todo;
exports.journal = journal;
exports.alarm = alarm;
const mime_types_1 = require("mime-types");
const BR = '\r\n';
function dateWithUTCTime(now) {
    const year = now.getUTCFullYear();
    const month = (now.getUTCMonth() + 1).toString().padStart(2, '0');
    const day = now.getUTCDate().toString().padStart(2, '0');
    const hours = now.getUTCHours().toString().padStart(2, '0');
    const minutes = now.getUTCMinutes().toString().padStart(2, '0');
    const seconds = now.getUTCSeconds().toString().padStart(2, '0');
    return `${year}${month}${day}T${hours}${minutes}${seconds}Z`;
}
function unfolding(str, maxLimit = 75) {
    const length = str.length;
    let outStr = '';
    if (length < maxLimit) {
        return str;
    }
    for (let i = 0, j = 2; i < length; i += maxLimit % length, j += 1) {
        outStr += str.slice(i, i + maxLimit) + '\n' + ' '.repeat(j);
    }
    return outStr;
}
function createEmail(str) {
    const MAILTO = 'mailto:';
    return str.startsWith(MAILTO) ? str : MAILTO + str;
}
function recurrenceRule({ freq, interval, count, until, wkst = 'MO', byday, byweekno, bymonthday, byyearday, }) {
    let outStr = '';
    if (freq) {
        outStr += 'FREQ=' + freq + ';';
    }
    if (interval) {
        outStr += 'INTERVAL=' + interval + ';';
    }
    if (count) {
        outStr += 'COUNT=' + count + ';';
    }
    if (until) {
        outStr += 'UNTIL=' + until + ';';
    }
    outStr += wkst + ';';
    if (byday) {
        outStr += 'BYDAY=';
        if (Array.isArray(byday)) {
            outStr += byday.join(',');
        }
        else {
            outStr += byday;
        }
        outStr += ';';
    }
    if (byweekno) {
        outStr += 'BYWEEKNO' + byweekno + ';';
    }
    if (bymonthday) {
        outStr += 'BYMONTHDAY=';
        if (Array.isArray(bymonthday)) {
            outStr += bymonthday.join(',');
        }
        else {
            outStr += bymonthday;
        }
        outStr += ';';
    }
    if (byyearday) {
        outStr += 'BYYEARDAY' + byyearday + ';';
    }
    return outStr;
}
function createOrganizer(organizer) {
    let str = '';
    if (Array.isArray(organizer)) {
        for (const address of organizer) {
            let org = 'ORGANIZER;';
            org += 'CN=' + address.name;
            if (address.email) {
                org += `:${createEmail(address.email)}`;
            }
            str += org + BR;
        }
    }
    else {
        str += `ORGANIZER:${organizer}` + BR;
    }
    return str;
}
function createUri(url) {
    return 'URL;VALUE=URI:' + url.toString();
}
function createClass(klass) {
    return 'CLASS:' + klass.toUpperCase();
}
function createTransp(transp) {
    return 'TRANSP:' + transp.toUpperCase();
}
function createAttach(base64) {
    const [type, temp] = base64.split('data:')[1].split(';');
    const [encoding, data] = temp.split(',');
    let str = 'ATTACH';
    str += ';FMTTYPE=' + type;
    str += ';FILENAME=' + globalThis.crypto.randomUUID() + '.' + (0, mime_types_1.extension)(type);
    str += ';ENCODING=' + encoding.toUpperCase();
    str += ';VALUE=' + 'BINARY';
    str += ':' + data;
    return str;
}
function event({ uid, location, geo, summary, description, stamp, start, end, attach, organizer, attendee, url, status, categories, rrule, klass, transp, }) {
    let str = 'BEGIN:VEVENT' + BR;
    str += `UID:${uid}` + BR;
    if (stamp instanceof Date) {
        str += `DTSTAMP:${dateWithUTCTime(stamp)}` + BR;
    }
    if (start instanceof Date) {
        str += `DTSTART:${dateWithUTCTime(start)}` + BR;
    }
    if (end instanceof Date) {
        str += `DTEND:${dateWithUTCTime(end)}` + BR;
    }
    if (location?.length) {
        str += `LOCATION:${location}` + BR;
    }
    if (geo && Array.isArray(geo)) {
        str += `GEO:${geo[0]};${geo[1]}` + BR;
    }
    if (summary?.length) {
        str += `SUMMARY:${unfolding(summary)}` + BR;
    }
    if (description?.length) {
        str += `DESCRIPTION:${(description)}` + BR;
    }
    if (status?.length) {
        str += `STATUS:${status}` + BR;
    }
    if (categories) {
        str += `CATEGORIES:${categories}` + BR;
    }
    if (organizer) {
        str += createOrganizer(organizer);
    }
    if (attendee) {
        str += createOrganizer(attendee);
    }
    if (attach) {
        if (Array.isArray(attach)) {
            for (const base64 of attach) {
                str += createAttach(base64) + BR;
            }
        }
        else {
            str += createAttach(attach) + BR;
        }
    }
    if (url && url instanceof URL) {
        str += createUri(url) + BR;
    }
    if (klass) {
        str += createClass(klass) + BR;
    }
    if (transp) {
        str += createTransp(transp) + BR;
    }
    if (rrule) {
        str += 'RRULE:' + recurrenceRule(rrule) + BR;
    }
    str += 'END:VEVENT';
    return str;
}
function todo({ uid, stamp, due, summary, description, priority, status, rrule, }) {
    let str = 'BEGIN:VTODO' + BR;
    str += 'UID:' + uid + BR;
    if (stamp instanceof Date) {
        str += `DTSTAMP:${dateWithUTCTime(stamp)}` + BR;
    }
    if (due instanceof Date) {
        str += `DTSTAMP:${dateWithUTCTime(due)}` + BR;
    }
    if (summary?.length) {
        str += 'SUMMARY:' + unfolding(summary) + BR;
    }
    if (description?.length) {
        str += 'DESCRIPTION:' + (description) + BR;
    }
    if (priority) {
        str += 'PRIORITY:' + String(priority) + BR;
    }
    if (status?.length) {
        str += 'STATUS:' + status + BR;
    }
    if (rrule) {
        str += 'RRULE:' + recurrenceRule(rrule) + BR;
    }
    str += 'END:VTODO';
    return str;
}
function journal({ uid, stamp, start, summary, description, rrule, }) {
    let str = 'BEGIN:VJOURNAL';
    str += `UID:${uid}` + BR;
    if (stamp instanceof Date) {
        str += `DTSTAMP:${dateWithUTCTime(stamp)}` + BR;
    }
    if (start instanceof Date) {
        str += `DTSTART:${dateWithUTCTime(start)}` + BR;
    }
    if (summary?.length) {
        str += `SUMMARY:${unfolding(summary)}` + BR;
    }
    if (description?.length) {
        str += `DESCRIPTION:${(description)}` + BR;
    }
    if (rrule) {
        str += 'RRULE:' + recurrenceRule(rrule) + BR;
    }
    str += 'END:VJOURNAL';
    return str;
}
function alarm({ uid, action, description, trigger }) {
    let str = 'BEGIN:VALARM' + BR;
    str += 'UID:' + uid + BR;
    if (trigger) {
        str += 'TRIGGER:' + trigger + BR;
    }
    if (description?.length) {
        str += 'DESCRIPTION:' + description + BR;
    }
    if (action) {
        str += 'ACTION:' + action + BR;
    }
    str += 'END:VALARM';
    return str;
}
exports.default = (id, { event, todo, journal, alarm, }) => {
    let str = 'BEGIN:VCALENDAR' + BR;
    str += 'VERSION:2.0' + BR;
    str += 'PRODID:' + id + BR;
    str += 'CALSCALE:GREGORIAN' + BR;
    str += 'METHOD:PUBLISH' + BR;
    if (event) {
        str += event + BR;
    }
    if (todo) {
        str += todo + BR;
    }
    if (journal) {
        str += journal + BR;
    }
    if (alarm) {
        str += alarm + BR;
    }
    str += 'END:VCALENDAR';
    return str;
};