export const qpabbr = (value: string|null, max: number|undefined=undefined) => {
    if (value) {
        let v = value.split(" ").map((k) => k[0]);
        let r = v.slice(0,max).join("").toUpperCase();
        return r;
    } else return "";
}

export const qpcode = (text: string) => {
    let r = text
        .replace(/&/g, "&")
        .replace(/</g, "&lt;")
        .replace(/>/g, "&gt;")
        .replace(/"/g, "&quot;")
        .replace(/'/g, "&#39;")
        .replace(/\n/g, "<br />")
        .replace(/\[g\]/g, '<span style="font-weight:bold;">')
        .replace(/\[\/g\]/g, "</span>")
        .replace(/\[i\]/g, '<span style="font-style:italic;">')
        .replace(/\[\/i\]/g, "</span>")
        .replace(/\[s\]/g, '<span style="text-decoration:underline;">')
        .replace(/\[\/s\]/g, "</span>")
        .replace(/\[b\]/g, '<span style="text-decoration:line-through;">')
        .replace(/\[\/b\]/g, "</span>")
        .replace(/\[ag\]/g, '<div style="text-align:left;">')
        .replace(/\[\/ag\]/g, "</div>")
        .replace(/\[ac\]/g, '<div style="text-align:center;">')
        .replace(/\[\/ac\]/g, "</div>")
        .replace(/\[ad\]/g, '<div style="text-align:right;">')
        .replace(/\[\/ad\]/g, "</div>")
        .replace(/\[c=#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})\]/g, '<span style="color:#$1;">')
        .replace(/\[c=([a-zA-Z0-9_]+)\]/g, '<span style="color:var(--c-$1);">')
        .replace(/\[\/c\]/g, "</span>")
        .replace(/\[url=([^<>[\]]+)\]/g, '<a href="$1">')
        .replace(/\[\/url\]/g, "</a>")
        .replace(/\[urlo=([^<>[\]]+)\]/g, '<a href="$1" target="_blank">')
        .replace(/\[\/urlo\]/g, "</a>")
        .replace(/\[img=([^<>[\]]+)\]/g, '<img src="$1" alt="" />')
        .replace(/\[ico=([a-z- ]+)\]/g, '<i class="mdi $1"></i>');
    return r;
}

export const qpdate = (value: string|null=null, lang: string="fr", tz: string="America/Toronto", show: string="full") => {
    let d = !!value ? new Date(value) : new Date(new Date().toString());
    let o: Intl.DateTimeFormatOptions = {
        timeZone: tz,
        hour12: false,
        year: (["full","date"].includes(show) ? "numeric" : undefined),
        month: (["full","date"].includes(show) ? "long" : undefined),
        day: (["full","date"].includes(show) ? "numeric" : undefined),
        hour: (["full","time"].includes(show) ? "2-digit" : undefined),
        minute: (["full","time"].includes(show) ? "2-digit" : undefined)
    };
    return d.toLocaleString(lang, o);
}

export const qprhex = () => {
    return `#${Math.floor((Math.random() * 0xffffff)).toString(16)}`;
}

export const qpslug = (value: string|number) => {
    return value.toString()
        .normalize("NFD")
        .toLowerCase()
        .trim()
        .replace(/\s+/g, "-")
        .replace(/ð/g, "d")
        .replace(/ß/g, "ss")
        .replace(/§/g, "ss")
        .replace(/ł/g, "l")
        .replace(/ø/g, "o")
        .replace(/æ/g, "ae")
        .replace(/œ/g, "oe")
        .replace(/ĸ/g, "k")
        .replace(/µ/g, "u")
        .replace(/[^\w\-]+/g, "")
        .replace(/\_/g, "-")
        .replace(/\-\-+/g, "-")
        .replace(/\-$/g, "");
}

export const qpunit = (num: number, digits: number = 2) => {
    const l = [
        { v: 1, u: "" },
        { v: 1e3, u: "k" },
        { v: 1e6, u: "M" },
        { v: 1e9, u: "G" },
        { v: 1e12, u: "T" },
        { v: 1e15, u: "P" },
        { v: 1e18, u: "E" }
    ];
    const rx = /\.0+$|(\.[0-9]*[1-9])0+$/;
    var i = l.slice().reverse().find(function (i) {
        return num >= i.v;
    });
    return i ? (num / i.v).toFixed(digits).replace(rx, "$1") + i.u : "0";
}

const qpfilters = {
    qpabbr,
    qpcode,
    qpdate,
    qprhex,
    qpslug,
    qpunit
};

export default qpfilters;