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6ec808b8df
ES and TypeScript modules are strict by default and don’t need this directive. ESLint will remind us to add it to new CommonJS files and remove it from ES and TypeScript modules. Signed-off-by: Anders Kaseorg <anders@zulip.com>
60 lines
1.8 KiB
JavaScript
60 lines
1.8 KiB
JavaScript
"use strict";
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const XDate = require("xdate");
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function truncate_precision(float) {
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return parseFloat(float.toFixed(3));
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}
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exports.now = function () {
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const timestamp = new XDate().getTime() / 1000;
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return timestamp;
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};
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exports.insert_message = function (message) {
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// It is a little bit funny to go through the message_events
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// codepath, but it's sort of the idea behind local echo that
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// we are simulating server events before they actually arrive.
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message_events.insert_new_messages([message], true);
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};
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exports.get_next_id_float = (function () {
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const already_used = new Set();
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return function () {
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const local_id_increment = 0.01;
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let latest = page_params.max_message_id;
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if (typeof message_list.all !== "undefined" && message_list.all.last() !== undefined) {
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latest = message_list.all.last().id;
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}
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latest = Math.max(0, latest);
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const local_id_float = truncate_precision(latest + local_id_increment);
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if (already_used.has(local_id_float)) {
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// If our id is already used, it is probably an edge case like we had
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// to abort a very recent message.
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blueslip.warn("We don't reuse ids for local echo.");
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return;
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}
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if (local_id_float % 1 > local_id_increment * 5) {
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blueslip.warn("Turning off local echo for this message to let host catch up");
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return;
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}
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if (local_id_float % 1 === 0) {
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// The logic to stop at 0.05 should prevent us from ever wrapping around
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// to the next integer.
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blueslip.error("Programming error");
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return;
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}
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already_used.add(local_id_float);
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return local_id_float;
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};
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})();
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window.local_message = exports;
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