support importing camt.052 bank statement file

pkg/converters/camt/camt_data_reader.go

@@ -10,11 +10,30 @@ import (
 	"github.com/mayswind/ezbookkeeping/pkg/errs"
 )
 
+// camt052FileReader defines the structure of camt.052 file reader
+type camt052FileReader struct {
+	xmlDecoder *xml.Decoder
+}
+
 // camt053FileReader defines the structure of camt.053 file reader
 type camt053FileReader struct {
 	xmlDecoder *xml.Decoder
 }
 
+// read returns the imported camt.052 data
+// Reference: https://www.iso20022.org/message-set/1196/download
+func (r *camt052FileReader) read(ctx core.Context) (*camt052File, error) {
+	file := &camt052File{}
+
+	err := r.xmlDecoder.Decode(&file)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return file, nil
+}
+
 // read returns the imported camt.053 data
 // Reference: https://www.iso20022.org/message-set/1196/download
 func (r *camt053FileReader) read(ctx core.Context) (*camt053File, error) {
@@ -29,6 +48,19 @@ func (r *camt053FileReader) read(ctx core.Context) (*camt053File, error) {
 	return file, nil
 }
 
+func createNewCamt052FileReader(data []byte) (*camt052FileReader, error) {
+	if len(data) > 5 && data[0] == 0x3C && data[1] == 0x3F && data[2] == 0x78 && data[3] == 0x6D && data[4] == 0x6C { // <?xml
+		xmlDecoder := xml.NewDecoder(bytes.NewReader(data))
+		xmlDecoder.CharsetReader = charset.NewReaderLabel
+
+		return &camt052FileReader{
+			xmlDecoder: xmlDecoder,
+		}, nil
+	}
+
+	return nil, errs.ErrInvalidXmlFile
+}
+
 func createNewCamt053FileReader(data []byte) (*camt053FileReader, error) {
 	if len(data) > 5 && data[0] == 0x3C && data[1] == 0x3F && data[2] == 0x78 && data[3] == 0x6D && data[4] == 0x6C { // <?xml
 		xmlDecoder := xml.NewDecoder(bytes.NewReader(data))