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package api
import (
"fmt"
"io"
"os"
)
type Widget struct {
Hello
Credits
Writer io.Writer
}
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,
}
}
func (w *Widget) Handle() error {
if len(os.Args) < 2 {
return fmt.Errorf("no method")
}
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])
}
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