// Parse parsses the input string and runs the command
// Returns -1 if successful, 0 to signal graceful exit, >0 to signify critical exit
func Parse(ircc *irc.IRC, w io.Writer, input string) int {
cmd := make(map[string]interface{})
if err := json.Unmarshal([]byte(input), &cmd); err != nil {
fmt.Fprint(w, events.JSONError(err.Error()))
return -1 // Not a critical error.
}
if _, ok := cmd["type"].(string); !ok {
fmt.Fprint(w, events.JSONError("type field must exist and be a string"))
return -1 // Not a critical error.
}
switch cmd["type"].(string) {
case "exit":
return exit(ircc, w)
case "join":
return join(ircc, w, input)
case "part":
return part(ircc, w, input)
case "msg":
return msg(ircc, w, input)
default:
fmt.Fprint(w, events.JSONError(fmt.Sprintf("unknown type %s", cmd["type"].(string))))
return -1 // Not a critical error.
}
}
func part(ircc *irc.IRC, w io.Writer, input string) int {
cmd := events.Part{}
if err := json.Unmarshal([]byte(input), &cmd); err != nil {
fmt.Fprint(w, events.JSONError(err.Error()))
return -1 // Not a critical error.
}
e := []validate.ValidationMsg{}
e = append(e, validate.NotNil("channel", cmd.Channel)...)
if len(e) > 0 {
fmt.Fprint(w, events.ValidationError("part", e))
return -1 // Not a critical error.
}
ircc.Part(cmd.Channel)
return -1
}
// TODO: Add CTCP support for newlines
// TODO: check length of message and break message into multiple lines
func msg(ircc *irc.IRC, w io.Writer, input string) int {
cmd := events.Msg{}
if err := json.Unmarshal([]byte(input), &cmd); err != nil {
fmt.Fprint(w, events.JSONError(err.Error()))
return -1 // Not a critical error.
}
e := []validate.ValidationMsg{}
e = append(e, validate.NotNil("target", cmd.Target)...)
e = append(e, validate.NotNil("msg", cmd.Msg)...)
if len(e) > 0 {
fmt.Fprint(w, events.ValidationError("join", e))
return -1 // Not a critical error.
}
ircc.Msg(cmd.Target, cmd.Msg, cmd.Notice)
return -1
}