1 files changed, 57 insertions, 0 deletions
diff --git a/internal/config/config.go b/internal/config/config.go
new file mode 100644
index 0000000..dea804b
--- /dev/null
+++ b/internal/config/config.go
@@ -0,0 +1,57 @@
+package config
+
+import "time"
+
+// Mode represents the ingestion mode
+type Mode string
+
+const (
+	ModeRealtime Mode = "realtime"
+	ModeHistoric Mode = "historic"
+	ModeBackfill Mode = "backfill"
+	ModeAuto     Mode = "auto"
+	ModeWatch    Mode = "watch"
+)
+
+// Config holds all configuration for the prometheus-pusher
+type Config struct {
+	Mode            Mode
+	PushgatewayURL  string
+	PrometheusURL   string
+	ClickHouseURL   string // ClickHouse HTTP URL (e.g. http://localhost:8123)
+	ClickHouseTable string // ClickHouse table name (default: epimetheus_metrics)
+	JobName         string
+	Continuous      bool
+	InputFile       string
+	InputFormat     string
+	MetricName      string
+	HoursAgo        int
+	StartHours      int
+	EndHours        int
+	Interval        int
+	ResolveIPLabels []string // Labels containing IP addresses to resolve via DNS
+}
+
+// NewConfig creates a new Config with default values
+func NewConfig() Config {
+	return Config{
+		Mode:            ModeRealtime,
+		PushgatewayURL:  "http://localhost:9091",
+		PrometheusURL:   "http://localhost:9090/api/v1/write",
+		ClickHouseURL:   "",
+		ClickHouseTable: "epimetheus_metrics",
+		JobName:         "example_metrics_pusher",
+		InputFormat:     "csv",
+		HoursAgo:        24,
+		StartHours:      48,
+		EndHours:        0,
+		Interval:        1,
+		ResolveIPLabels: []string{"ip"}, // Default resolves 'ip' label
+	}
+}
+
+// AutoIngestThreshold is the age threshold for auto mode routing
+const AutoIngestThreshold = 5 * time.Minute
+
+// DefaultHTTPTimeout is the default timeout for HTTP requests
+const DefaultHTTPTimeout = 10 * time.Second