move get fee params settings to shared

postgresql/opening_store.go

@@ -0,0 +1,57 @@
+package postgresql
+
+import (
+	"context"
+	"encoding/json"
+	"log"
+	"time"
+
+	"github.com/breez/lspd/shared"
+	"github.com/jackc/pgx/v4/pgxpool"
+)
+
+type extendedParams struct {
+	Token  string                  `json:"token"`
+	Params shared.OpeningFeeParams `json:"fees_params"`
+}
+
+type PostgresOpeningStore struct {
+	pool *pgxpool.Pool
+}
+
+func NewPostgresOpeningStore(pool *pgxpool.Pool) *PostgresOpeningStore {
+	return &PostgresOpeningStore{pool: pool}
+}
+
+func (s *PostgresOpeningStore) GetFeeParamsSettings(token string) ([]*shared.OpeningFeeParamsSetting, error) {
+	rows, err := s.pool.Query(context.Background(), `SELECT validity, params FROM new_channel_params WHERE token=$1`, token)
+	if err != nil {
+		log.Printf("GetFeeParamsSettings(%v) error: %v", token, err)
+		return nil, err
+	}
+
+	var settings []*shared.OpeningFeeParamsSetting
+	for rows.Next() {
+		var validity int64
+		var param string
+		err = rows.Scan(&validity, &param)
+		if err != nil {
+			return nil, err
+		}
+
+		var params *shared.OpeningFeeParams
+		err := json.Unmarshal([]byte(param), &params)
+		if err != nil {
+			log.Printf("Failed to unmarshal fee param '%v': %v", param, err)
+			return nil, err
+		}
+
+		duration := time.Second * time.Duration(validity)
+		settings = append(settings, &shared.OpeningFeeParamsSetting{
+			Validity: duration,
+			Params:   params,
+		})
+	}
+
+	return settings, nil
+}