From 3115c6b782a8d410023a4427e3b5f5dcdfb14d6b Mon Sep 17 00:00:00 2001
From: Andriy Cherniy <qugalet@m0e.space>
Date: Fri, 27 Dec 2024 11:22:56 +0200
Subject: [PATCH] initial commit

---
 db/struct_reflect.go | 72 ++++++++++++++++++++++++++++++++++++++++++++
 go.mod               |  3 ++
 2 files changed, 75 insertions(+)
 create mode 100644 db/struct_reflect.go
 create mode 100644 go.mod

diff --git a/db/struct_reflect.go b/db/struct_reflect.go
new file mode 100644
index 0000000..2e521da
--- /dev/null
+++ b/db/struct_reflect.go
@@ -0,0 +1,72 @@
+package db
+
+import (
+	"fmt"
+	"reflect"
+)
+
+func StructToDBColumns(s any) ([]string, error) {
+	typ := reflect.TypeOf(s)
+	if typ.Kind() != reflect.Struct {
+		return nil, fmt.Errorf("%s is not a struct", typ)
+	}
+
+	var res []string
+
+	for i := 0; i < typ.NumField(); i++ {
+		fld := typ.Field(i)
+
+		if column := fld.Tag.Get("params"); column == "nocreate" {
+			continue
+		}
+		if column := fld.Tag.Get("db"); column != "" {
+			res = append(res, column)
+		}
+	}
+	return res, nil
+}
+
+func StructToDBValues(s any) ([]any, error) {
+	val := reflect.ValueOf(s)
+	typ := reflect.TypeOf(s)
+	if val.Kind() != reflect.Struct {
+		return nil, fmt.Errorf("%s is not a struct", val)
+	}
+
+	var res []any
+
+	for i := 0; i < val.NumField(); i++ {
+		if column := typ.Field(i).Tag.Get("params"); column == "nocreate" {
+			continue
+		}
+		// switch val.Field(i).Kind() {
+		// case reflect.Struct:
+		// 	structVal, err := StructToDBValues(val.Field(i).Interface())
+		// 	if err != nil {
+		// 		return res, err
+		// 	}
+		// 	res = append(res, structVal...)
+		// default:
+		res = append(res, val.Field(i).Interface())
+		// }
+	}
+	return res, nil
+}
+
+func StructToUpdateMap(s any) (map[string]interface{}, error) {
+	val := reflect.ValueOf(s)
+	typ := reflect.TypeOf(s)
+	if val.Kind() != reflect.Struct {
+		return nil, fmt.Errorf("%s is not a struct", val)
+	}
+
+	res := make(map[string]interface{})
+
+	for i := 0; i < val.NumField(); i++ {
+		if column := typ.Field(i).Tag.Get("params"); column == "noupdate" {
+			continue
+		}
+		res[typ.Field(i).Tag.Get("db")] = val.Field(i).Interface()
+	}
+	return res, nil
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..7d1c070
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.m0e.space/qugalet/qutils
+
+go 1.23.4