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package serde
import (
"io"
"reflect"
"github.com/google/jsonapi"
"github.com/xlgmokha/x/pkg/x"
)
func ToJSONAPI[T any](w io.Writer, item T) error {
if err, ok := any(item).(*jsonapi.ErrorsPayload); ok {
return jsonapi.MarshalErrors(w, err.Errors)
}
if x.IsSlice[T](item) {
firstItem := reflect.TypeOf(item).Elem()
if firstItem.Kind() == reflect.Pointer {
return jsonapi.MarshalPayload(w, item)
}
sliceValue := reflect.ValueOf(item)
slice := reflect.MakeSlice(reflect.SliceOf(reflect.PointerTo(firstItem)), 0, sliceValue.Len())
for i := 0; i < sliceValue.Len(); i++ {
slice = reflect.Append(slice, sliceValue.Index(i).Addr())
}
return jsonapi.MarshalPayload(w, slice.Interface())
}
if x.IsPtr(item) {
return jsonapi.MarshalPayload(w, item)
}
return jsonapi.MarshalPayload(w, &item)
}
func FromJSONAPI[T any](reader io.Reader) (T, error) {
item := x.Default[T]()
if _, ok := any(item).(*jsonapi.ErrorsPayload); ok {
return FromJSON[T](reader)
}
if x.IsSlice[T](item) {
sliceType := reflect.TypeOf(item).Elem()
items, err := jsonapi.UnmarshalManyPayload(reader, sliceType)
if err != nil {
return item, err
}
slice := reflect.MakeSlice(reflect.SliceOf(sliceType), 0, len(items))
for _, item := range items {
slice = reflect.Append(slice, reflect.ValueOf(item))
}
return slice.Interface().(T), err
}
if x.IsPtr(item) {
return item, jsonapi.UnmarshalPayload(reader, item)
}
return item, jsonapi.UnmarshalPayload(reader, &item)
}
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