From 430ce670b514153eac5fc1c98c1ac93177d973b8 Mon Sep 17 00:00:00 2001
From: Icaro Motta <icaro.ldm@gmail.com>
Date: Wed, 2 Oct 2024 12:13:49 -0300
Subject: [PATCH] WIP

---
 edn/malli.go      | 77 +++++++++++++++++++++++++++++++++++++++++++++++
 edn/malli_test.go | 19 ++++++++++++
 2 files changed, 96 insertions(+)
 create mode 100644 edn/malli.go
 create mode 100644 edn/malli_test.go

diff --git a/edn/malli.go b/edn/malli.go
new file mode 100644
index 000000000..b324c2842
--- /dev/null
+++ b/edn/malli.go
@@ -0,0 +1,77 @@
+package edn
+
+import (
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+)
+
+var primitiveGoTypeToMalli = map[string]string{
+	"bool":    ":boolean",
+	"string":  ":string",
+	"float64": ":double",
+	"int":     ":int",
+	"int32":   ":int",
+	"uint8":   ":int",
+	"uint32":  ":int",
+	"uint64":  ":int",
+}
+
+func convertCamelToKebab(input string) string {
+	re := regexp.MustCompile("([a-z])([A-Z])")
+	kebab := re.ReplaceAllString(input, "${1}-${2}")
+	return strings.ToLower(kebab)
+}
+
+func handleType(fieldType reflect.Type) any {
+	kind := fieldType.Kind()
+
+	if kind == reflect.Interface {
+		return ":any"
+	}
+
+	if kind == reflect.Struct {
+		return ConvertStructToMalli(fieldType)
+	}
+
+	if kind == reflect.Slice {
+		elemType := fieldType.Elem()
+		// Handle the type that the pointer points to.
+		if elemType.Kind() == reflect.Ptr {
+			return []any{handleType(elemType.Elem())}
+		}
+		return []any{handleType(elemType)}
+	}
+
+	return primitiveGoTypeToMalli[kind.String()]
+}
+
+func ConvertStructToMalli(typ reflect.Type) map[string]any {
+	if typ.Kind() == reflect.Ptr {
+		typ = typ.Elem() // Dereference if it's a pointer to a struct type
+	}
+
+	if typ.Kind() != reflect.Struct {
+		panic("ConvertStructToMalli expects a struct type or pointer to a struct type")
+	}
+
+	malliSchema := make(map[string]any)
+	for i := 0; i < typ.NumField(); i++ {
+		field := typ.Field(i)
+		fmt.Println(field)
+
+		if !field.IsExported() {
+			continue
+		}
+
+		kebabFieldName := convertCamelToKebab(field.Name)
+
+		if field.Type.Kind() == reflect.Ptr {
+			malliSchema[kebabFieldName] = handleType(field.Type.Elem())
+		} else {
+			malliSchema[kebabFieldName] = handleType(field.Type)
+		}
+	}
+	return malliSchema
+}
diff --git a/edn/malli_test.go b/edn/malli_test.go
new file mode 100644
index 000000000..63b0e3fba
--- /dev/null
+++ b/edn/malli_test.go
@@ -0,0 +1,19 @@
+package edn
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	common "github.com/status-im/status-go/protocol/common"
+)
+
+func TestConvertStructToMalli(t *testing.T) {
+	malliRepresentation := ConvertStructToMalli(reflect.TypeOf(common.Message{}))
+	bytes, err := json.MarshalIndent(malliRepresentation, "", "  ")
+	require.NoError(t, err)
+	fmt.Println(string(bytes))
+}