feat(widget): creditsfeat/custom-widget

3 files changed, 38 insertions, 4 deletions

diff --git a/widget/api/credits.go b/widget/api/credits.go
new file mode 100644
index 0000000..e30cbea
--- /dev/null
+++ b/widget/api/credits.go
@@ -0,0 +1,23 @@
+package api
+
+import (
+	"encoding/json"
+	"io"
+)
+
+const MethodCredits Method = "credits"
+
+type Credits struct {
+	Author   string   `json:"author"`
+	Homepage string   `json:"homepage"`
+	Other    []string `json:"other,omitempty"`
+}
+
+func (c *Credits) Respond(w io.Writer, _ ...string) error {
+	b, err := json.Marshal(c)
+	if err != nil {
+		return err
+	}
+	_, err = w.Write(b)
+	return err
+}
diff --git a/widget/api/handle.go b/widget/api/handle.go
index e04d3d2..fed2142 100644
--- a/widget/api/handle.go
+++ b/widget/api/handle.go
@@ -8,16 +8,27 @@ import (
 
 type Widget struct {
 	Hello
+	Credits
 	Writer io.Writer
 }
 
-func NewWidget(name, id string) *Widget {
+type MethodResponder interface {
+	Respond(io.Writer, ...string) error
+}
+
+type Method string
+
+func NewWidget(name, id string, author, homepage string) *Widget {
 	return &Widget{
 		Hello: Hello{
 			Name:    name,
 			ID:      id,
 			Version: 1,
 		},
+		Credits: Credits{
+			Author:   author,
+			Homepage: homepage,
+		},
 		Writer: os.Stdout,
 	}
 }
@@ -29,6 +40,8 @@ func (w *Widget) Handle() error {
 	switch Method(os.Args[1]) {
 	case MethodHello:
 		return w.Hello.Respond(w.Writer)
+	case MethodCredits:
+		return w.Credits.Respond(w.Writer)
 	}
 	return fmt.Errorf("unknown method: %s", os.Args[1])
 }
diff --git a/widget/api/hello.go b/widget/api/hello.go
index 7995a36..fd071d5 100644
--- a/widget/api/hello.go
+++ b/widget/api/hello.go
@@ -5,8 +5,6 @@ import (
 	"io"
 )
 
-type Method string
-
 const MethodHello Method = "hello"
 
 type Hello struct {
@@ -15,7 +13,7 @@ type Hello struct {
 	Version uint   `json:"version"`
 }
 
-func (h *Hello) Respond(w io.Writer) error {
+func (h *Hello) Respond(w io.Writer, _ ...string) error {
 	b, err := json.Marshal(h)
 	if err != nil {
 		return err