72 lines
2.1 KiB
JavaScript
72 lines
2.1 KiB
JavaScript
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async function query(sql, args) {
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let rows = [];
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await ssb.sqlAsync(sql, args ?? [], function(row) {
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rows.push(row);
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});
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return rows;;
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}
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async function get_biggest() {
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return query(`
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select author, sum(length(content)) as size from messages group by author order by size desc limit 10;
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`);
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}
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async function get_names(identities) {
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return query(`
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SELECT author, name FROM (
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SELECT
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messages.author,
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RANK() OVER (PARTITION BY messages.author ORDER BY messages.sequence DESC) AS author_rank,
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messages.content ->> 'name' AS name
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FROM messages
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JOIN json_each(?) AS identities ON identities.value = messages.author
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WHERE
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json_extract(messages.content, '$.type') = 'about' AND
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content ->> 'about' = messages.author AND name IS NOT NULL)
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WHERE author_rank = 1
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`, [JSON.stringify(identities)]);
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}
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function nice_size(bytes) {
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let value = bytes;
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let index = 0;
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let units = ['B', 'kB', 'MB', 'GB'];
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while (value > 1024 && index < units.length - 1) {
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value /= 1024;
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index++;
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}
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return `${Math.round(value * 10) / 10} ${units[index]}`;
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}
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async function main() {
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await app.setDocument('<p style="color: #fff">Finding the top 10 largest feeds...</p>');
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let identities = await ssb.getAllIdentities();
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let following1 = await ssb.following(identities, 1);
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let following2 = await ssb.following(identities, 2);
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let biggest = await get_biggest();
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let names = await get_names(biggest.map(x => x.author));
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names = Object.fromEntries(names.map(x => [x.author, x.name]));
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for (let item of biggest) {
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item.name = names[item.author];
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item.following =
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identities.indexOf(item.author) != -1 ? 0 :
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following1[item.author] !== undefined ? 1 :
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following2[item.author] !== undefined ? 2 :
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undefined;
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}
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let html = `<body style="color: #000; background-color: #ddd">\n
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<h1>Top 10 Accounts by Size</h1>
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<ol>`;
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for (let item of biggest) {
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html += `<li>
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<span style="color: #888">${nice_size(item.size)}</span>
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<a target="_top" href="/~core/ssb/#${encodeURI(item.author)}">${item.name ?? item.author}</a>
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</li>\n`;
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}
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html += '</ol>\n';
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await app.setDocument(html);
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}
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main().catch(function(e) { print(e); });
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