Repo Reorg

2020-09-18 18:39:51 -08:00
parent a4b3fc5a21
commit fc0f1b0ed3
33 changed files with 489 additions and 352 deletions
@@ -0,0 +1,32 @@
+package discord_utils
+
+import "time"
+
+type Snowflake struct {
+	CreationTime time.Time
+	WorkerID     int8
+	ProcessID    int8
+	Increment    int16
+}
+
+func ParseSnowflake(s int64) Snowflake {
+	const (
+		DISCORD_EPOCH   = 1420070400000
+		TIME_BITS_LOC   = 22
+		WORKER_ID_LOC   = 17
+		WORKER_ID_MASK  = 0x3E0000
+		PROCESS_ID_LOC  = 12
+		PROCESS_ID_MASK = 0x1F000
+		INCREMENT_MASK  = 0xFFF
+	)
+	creationTime := time.Unix(((s>>TIME_BITS_LOC)+DISCORD_EPOCH)/1000.0, 0)
+	workerID := (s & WORKER_ID_MASK) >> WORKER_ID_LOC
+	processID := (s & PROCESS_ID_MASK) >> PROCESS_ID_LOC
+	increment := s & INCREMENT_MASK
+	return Snowflake{
+		CreationTime: creationTime,
+		WorkerID:     int8(workerID),
+		ProcessID:    int8(processID),
+		Increment:    int16(increment),
+	}
+}