RC-5

internal/settings/settings.go

@@ -15,6 +15,8 @@ import (
 type Runtime struct {
 	GuessMinIntervalSec     int    `json:"guess_min_interval_sec"`
 	ClientSubmitIntervalSec int    `json:"client_submit_interval_sec"`
+	GuessLotteryWindowSec   int    `json:"guess_lottery_window_sec"`
+	GuessLotteryMaxAccepted int    `json:"guess_lottery_max_accepted"`
 	TaskRangeBits           int    `json:"task_range_bits"`
 	ActiveTaskCount         int    `json:"active_task_count"`
 	PresenceTTLSec          int    `json:"presence_ttl_sec"`
@@ -57,6 +59,8 @@ func Defaults() Runtime {
 	return Runtime{
 		GuessMinIntervalSec:     envInt("DEFAULT_GUESS_MIN_INTERVAL_SEC", 10),
 		ClientSubmitIntervalSec: envInt("DEFAULT_CLIENT_SUBMIT_INTERVAL_SEC", 11),
+		GuessLotteryWindowSec:   envInt("DEFAULT_GUESS_LOTTERY_WINDOW_SEC", 60),
+		GuessLotteryMaxAccepted: envInt("DEFAULT_GUESS_LOTTERY_MAX_ACCEPTED", 0),
 		TaskRangeBits:           envInt("DEFAULT_TASK_RANGE_BITS", 28),
 		ActiveTaskCount:         envInt("DEFAULT_ACTIVE_TASK_COUNT", 1),
 		PresenceTTLSec:          envInt("DEFAULT_PRESENCE_TTL_SEC", 35),
@@ -199,6 +203,12 @@ func Validate(v Runtime) error {
 	if v.ClientSubmitIntervalSec <= v.GuessMinIntervalSec || v.ClientSubmitIntervalSec > 7200 {
 		return fmt.Errorf("client_submit_interval_sec must be > guess_min_interval_sec and <= 7200")
 	}
+	if v.GuessLotteryWindowSec < 1 || v.GuessLotteryWindowSec > 3600 {
+		return fmt.Errorf("guess_lottery_window_sec must be 1..3600")
+	}
+	if v.GuessLotteryMaxAccepted < 0 || v.GuessLotteryMaxAccepted > 100000 {
+		return fmt.Errorf("guess_lottery_max_accepted must be 0..100000 (0 disables lottery)")
+	}
 	if v.TaskRangeBits < 8 || v.TaskRangeBits > 128 {
 		return fmt.Errorf("task_range_bits must be 8..128")
 	}