restructured the project to comply community guideline, for others check release note

internal/utils/functional/slice.go

@@ -0,0 +1,71 @@
+package functional
+
+type Slice[T any] struct {
+	s []T
+}
+
+func NewSlice[T any]() *Slice[T] {
+	return &Slice[T]{make([]T, 0)}
+}
+
+func NewSliceN[T any](n int) *Slice[T] {
+	return &Slice[T]{make([]T, n)}
+}
+
+func NewSliceFrom[T any](s []T) *Slice[T] {
+	return &Slice[T]{s}
+}
+
+func (s *Slice[T]) Size() int {
+	return len(s.s)
+}
+
+func (s *Slice[T]) Empty() bool {
+	return len(s.s) == 0
+}
+
+func (s *Slice[T]) NotEmpty() bool {
+	return len(s.s) > 0
+}
+
+func (s *Slice[T]) Iterator() []T {
+	return s.s
+}
+
+func (s *Slice[T]) Set(i int, v T) {
+	s.s[i] = v
+}
+
+func (s *Slice[T]) Add(e T) *Slice[T] {
+	s.s = append(s.s, e)
+	return s
+}
+
+func (s *Slice[T]) AddRange(other *Slice[T]) *Slice[T] {
+	s.s = append(s.s, other.s...)
+	return s
+}
+
+func (s *Slice[T]) ForEach(do func(T)) {
+	for _, v := range s.s {
+		do(v)
+	}
+}
+
+func (s *Slice[T]) Map(m func(T) T) *Slice[T] {
+	n := make([]T, len(s.s))
+	for i, v := range s.s {
+		n[i] = m(v)
+	}
+	return &Slice[T]{n}
+}
+
+func (s *Slice[T]) Filter(f func(T) bool) *Slice[T] {
+	n := make([]T, 0)
+	for _, v := range s.s {
+		if f(v) {
+			n = append(n, v)
+		}
+	}
+	return &Slice[T]{n}
+}