refactor: improve Redis increment script logic

- Update the increment script to handle expiration and reset conditions more effectively.
- Introduce parameters for window duration and reset behavior, enhancing script functionality.

source/scripts.ts

@@ -7,15 +7,24 @@
  */
 const scripts = {
 	increment: `
-      local totalHits = redis.call("INCR", KEYS[1])
-      local timeToExpire = redis.call("PTTL", KEYS[1])
-      if timeToExpire < 0 or ARGV[1] == "1"
-      then
-        redis.call("PEXPIRE", KEYS[1], tonumber(ARGV[2]))
-        timeToExpire = tonumber(ARGV[2])
-      end
+	      local windowMs = tonumber(ARGV[2])
+	      local resetOnChange = ARGV[1] == "1"
 
-      return { totalHits, timeToExpire }
+	      local timeToExpire = redis.call("PTTL", KEYS[1])
+
+	      if timeToExpire <= 0 then
+	        redis.call("SET", KEYS[1], 1, "PX", windowMs)
+	        return { 1, windowMs }
+	      end
+
+	      local totalHits = redis.call("INCR", KEYS[1])
+
+	      if resetOnChange then
+	        redis.call("PEXPIRE", KEYS[1], windowMs)
+	        timeToExpire = windowMs
+	      end
+        
+	      return { totalHits, timeToExpire }
 		`
 		// Ensure that code changes that affect whitespace do not affect
 		// the script contents.