add moon phase decoration, make feed icon bigger

1 files changed, 48 insertions, 0 deletions

diff --git a/js/moon-phase.js b/js/moon-phase.js
new file mode 100644
index 0000000..8feaced
--- /dev/null
+++ b/js/moon-phase.js
@@ -0,0 +1,48 @@
+// truncated to the day, America/Chicago time
+// only includes moons through end of 2024 (brown lunation number 1262)
+moons = [
+19585, 19593, 19599, 19606,
+19614, 19622, 19629, 19636,
+19644, 19651, 19658, 19666,
+19674, 19681, 19688, 19695,
+19703, 19710, 19717, 19725,
+19733, 19739, 19747, 19755,
+19762, 19769, 19777, 19785,
+19792, 19798, 19807, 19814,
+19821, 19828, 19836, 19844,
+19850, 19858, 19866, 19873,
+19880, 19888, 19895, 19902,
+19909, 19917, 19925, 19931,
+19939, 19947, 19954, 19961,
+19968, 19977, 19983, 19990,
+19998, 20006, 20013, 20020,
+20028, 20035, 20042, 20049,
+20058, 20065, 20072, 20079,
+20087, 20094, 20101, 20109
+]
+icons = ['\u{1f311}', '\u{1f313}', '\u{1f315}', '\u{1f317}']
+icons_inverted = ['\u{1f315}', '\u{1f317}', '\u{1f311}', '\u{1f313}']
+
+function getMoonsString(disable_emoji, inverted_icons) {
+	today = Math.floor((Date.now() - 18e6) / 86.4e6)
+
+	next_index = moons.findIndex((element) => element > today)
+	next_days = moons.slice(next_index, next_index + 4)
+
+	str = ""
+	for (let i = today; i < today + 30; i++) {
+		j = next_days.indexOf(i) + 1
+		if(j != 0) {
+			icon = disable_emoji && inverted_icons ? icons_inverted[j%4] : icons[j%4]
+			str = str.concat(icon)
+			if(disable_emoji)
+				str = str.concat('\ufe0e')
+		}
+		else str = str.concat('\u2500')
+	}
+	return str
+}
+
+document.addEventListener('DOMContentLoaded', (event) => {
+	document.getElementById('decor-moons').innerHTML = getMoonsString(true, true)
+})