.pragma library

// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// cliphist's list output, parsed and filtered. Pure, so test_clip.js runs it
// under node.

// One entry per line of `cliphist list`: "<id>\t<preview>". The whole line is
// kept, because decode and delete take it back verbatim on stdin. An image is
// a preview cliphist writes as "[[ binary data <size> <type> <WxH> ]]".
function parse(text) {
    const out = [];
    for (const line of text.split("\n")) {
        const tab = line.indexOf("\t");
        if (tab <= 0) continue;
        const preview = line.slice(tab + 1);
        out.push({
            line: line,
            id: line.slice(0, tab),
            text: preview,
            image: /^\[\[ binary data .* (png|jpe?g|gif|webp|bmp) /.test(preview),
        });
    }
    return out;
}

// Case-insensitive substring match on the preview; an empty query keeps all.
function filter(entries, query) {
    const q = query.trim().toLowerCase();
    if (q === "") return entries;
    return entries.filter(e => e.text.toLowerCase().indexOf(q) >= 0);
}