feature: added json io

pkg/serialize/json_io/json_io.go

@@ -0,0 +1,85 @@
+package json_io
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"git.tswf.io/incredible-go/incredible-go-core/pkg/io/files"
+)
+
+func ReadFromJsonBytes[T any](jsonBytes []byte) (*T, error) {
+	var result T
+
+	err := json.Unmarshal(jsonBytes, &result)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &result, nil
+}
+
+func WriteToJsonBytes[T any](value *T) ([]byte, error) {
+	content, err := json.Marshal(value)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return content, nil
+}
+
+func ReadFromJsonString[T any](jsonString string) (*T, error) {
+	return ReadFromJsonBytes[T]([]byte(jsonString))
+}
+
+func WriteToJsonString[T any](value *T) (string, error) {
+	jsonBytes, err := WriteToJsonBytes(value)
+	if err != nil {
+		return "", err
+	}
+
+	return string(jsonBytes), nil
+}
+
+func ReadFromJsonFile[T any](jsonFileLocation string) (*T, error) {
+	fileInfo, err := os.Stat(jsonFileLocation)
+	if err != nil {
+		return nil, err
+	}
+
+	if fileInfo.IsDir() {
+		return nil, fmt.Errorf("json file '%s' can not be a directory", jsonFileLocation)
+	}
+
+	jsonFileContentBytes, err := os.ReadFile(jsonFileLocation)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return ReadFromJsonBytes[T](jsonFileContentBytes)
+}
+
+func WriteToJsonFile[T any](jsonFileLocation string, value *T) ([]byte, error) {
+	jsonBytes, err := WriteToJsonBytes(value)
+
+	if err != nil {
+		return nil, err
+	}
+
+	file, err := files.OpenFileForWriting(jsonFileLocation)
+
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = file.Write(jsonBytes)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return jsonBytes, nil
+}