Use dlmm as option

parser.go

@@ -8,10 +8,36 @@ import (
 	"github.com/shopspring/decimal"
 )
 
-var swapPrograms = map[solana.PublicKey]swapParser{
+var defaultSwapPrograms = map[solana.PublicKey]swapParser{
-	pumpAmmProgram:     pumpAmmParser,
+	pumpAmmProgram: pumpAmmParser,
-	pumpProgram:        pumpParser,
+	pumpProgram:    pumpParser,
-	meteoraDlmmProgram: metaoradlmmParser,
+}
+
+var swapPrograms = cloneSwapPrograms(defaultSwapPrograms)
+
+type ParserOption func(*parserConfig)
+
+type parserConfig struct {
+	enableMeteoraDlmm bool
+}
+
+func InitParser(opts ...ParserOption) {
+	cfg := parserConfig{}
+	for _, opt := range opts {
+		opt(&cfg)
+	}
+
+	programs := cloneSwapPrograms(defaultSwapPrograms)
+	if cfg.enableMeteoraDlmm {
+		programs[meteoraDlmmProgram] = metaoradlmmParser
+	}
+	swapPrograms = programs
+}
+
+func WithMeteoraDlmm() ParserOption {
+	return func(cfg *parserConfig) {
+		cfg.enableMeteoraDlmm = true
+	}
 }
 
 var actionPrograms = map[solana.PublicKey]actionParser{
@@ -118,3 +144,11 @@ func (tx *Tx) Parser() error {
 
 	return nil
 }
+
+func cloneSwapPrograms(src map[solana.PublicKey]swapParser) map[solana.PublicKey]swapParser {
+	dst := make(map[solana.PublicKey]swapParser, len(src))
+	for k, v := range src {
+		dst[k] = v
+	}
+	return dst
+}