1package identity
 2
 3import (
 4	"encoding/json"
 5	"fmt"
 6
 7	bootstrap "github.com/MichaelMure/git-bug/entity/boostrap"
 8)
 9
10// Custom unmarshaling function to allow package user to delegate
11// the decoding of an Identity and distinguish between an Identity
12// and a Bare.
13//
14// If the given message has a "id" field, it's considered being a proper Identity.
15func UnmarshalJSON(raw json.RawMessage) (bootstrap.Identity, error) {
16	aux := &IdentityStub{}
17
18	// First try to decode and load as a normal Identity
19	err := json.Unmarshal(raw, &aux)
20	if err == nil && aux.Id() != "" {
21		return aux, nil
22	}
23
24	// abort if we have an error other than the wrong type
25	if _, ok := err.(*json.UnmarshalTypeError); err != nil && !ok {
26		return nil, err
27	}
28
29	return nil, fmt.Errorf("unknown identity type")
30}