Layout changes (#15)

* Layout refactor and standardization

* Use split to condense short array

* Fix verbage

1 files changed, 48 insertions, 0 deletions

diff --git a/src/util/timestamp.ts b/src/util/timestamp.ts
new file mode 100644
index 0000000..f53f5ad
--- /dev/null
+++ b/src/util/timestamp.ts
@@ -0,0 +1,48 @@
+const SHORT_CHARS =
+  "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".split("");
+
+/**
+ * Transforms a number into a custom 62 char expression of that number,
+ * effectively making a "short" version of that number (0-9a-zA-Z). This does
+ * NOT convert to a base-62 number.
+ *
+ * There are vast gaps in the effective translation of numbers, which is why
+ * this function is mostly for concisely translating dates prior to the year
+ * 2063. Since all other values associated with dates (month, day, hours,
+ * minutes, seconds) effectively fall within the range of a single character,
+ * this is an accepted shortcoming.
+ *
+ * Examples:
+ *
+ * 0 = 0
+ *
+ * 48 = M
+ *
+ * 2022 = km (in base-62 this would be wC)
+ */
+export function toShort(valu: number): string {
+  return (
+    valu
+      .toString()
+      .match(/.{1,2}/g)
+      ?.map((s) => SHORT_CHARS[parseInt(s)])
+      .join("") ?? ""
+  );
+}
+
+/**
+ * Translates a Unix EPOCH timestamp to a 62-char expression of the date. See
+ * the `toShort()` method for more details on the meaning of the final output.
+ */
+export function getTimestamp(seconds: number): string {
+  const date = new Date(seconds * 1000);
+  const dateArr = [
+    date.getUTCFullYear(),
+    date.getUTCMonth(),
+    date.getUTCDate(),
+    date.getUTCHours(),
+    date.getUTCMinutes(),
+  ];
+
+  return dateArr.map(toShort).join(".") + "-0";
+}