initial: Syntrex extraction from sentinel-community (615 files)

internal/application/orchestrator/config.go

@@ -0,0 +1,70 @@
+package orchestrator
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"time"
+)
+
+// JSONConfig is the v3.4 file-based configuration for the Orchestrator.
+// Loaded from .rlm/config.json. Overrides compiled defaults.
+type JSONConfig struct {
+	HeartbeatIntervalSec int     `json:"heartbeat_interval_sec,omitempty"`
+	JitterPercent        int     `json:"jitter_percent,omitempty"`
+	EntropyThreshold     float64 `json:"entropy_threshold,omitempty"`
+	MaxSyncBatchSize     int     `json:"max_sync_batch_size,omitempty"`
+	SynapseIntervalMult  int     `json:"synapse_interval_multiplier,omitempty"` // default: 12
+}
+
+// LoadConfigFromFile reads .rlm/config.json and returns a Config.
+// Missing or invalid file → returns defaults silently.
+func LoadConfigFromFile(path string) Config {
+	cfg := Config{
+		HeartbeatInterval: 5 * time.Minute,
+		JitterPercent:     30,
+		EntropyThreshold:  0.8,
+		MaxSyncBatchSize:  100,
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return cfg // File not found → use defaults.
+	}
+
+	var jcfg JSONConfig
+	if err := json.Unmarshal(data, &jcfg); err != nil {
+		return cfg // Invalid JSON → use defaults.
+	}
+
+	if jcfg.HeartbeatIntervalSec > 0 {
+		cfg.HeartbeatInterval = time.Duration(jcfg.HeartbeatIntervalSec) * time.Second
+	}
+	if jcfg.JitterPercent > 0 && jcfg.JitterPercent <= 100 {
+		cfg.JitterPercent = jcfg.JitterPercent
+	}
+	if jcfg.EntropyThreshold > 0 && jcfg.EntropyThreshold <= 1.0 {
+		cfg.EntropyThreshold = jcfg.EntropyThreshold
+	}
+	if jcfg.MaxSyncBatchSize > 0 {
+		cfg.MaxSyncBatchSize = jcfg.MaxSyncBatchSize
+	}
+
+	return cfg
+}
+
+// WriteDefaultConfig writes a default config.json to the given path.
+func WriteDefaultConfig(path string) error {
+	jcfg := JSONConfig{
+		HeartbeatIntervalSec: 300,
+		JitterPercent:        30,
+		EntropyThreshold:     0.8,
+		MaxSyncBatchSize:     100,
+		SynapseIntervalMult:  12,
+	}
+	data, err := json.MarshalIndent(jcfg, "", "  ")
+	if err != nil {
+		return fmt.Errorf("marshal config: %w", err)
+	}
+	return os.WriteFile(path, data, 0o644)
+}