up3

server/cmd/output.go

@@ -0,0 +1,95 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+	"github.com/df-mc/dragonfly/server/player/chat"
+	"golang.org/x/text/language"
+)
+
+// Output holds the output of a command execution. It holds success messages
+// and error messages, which the source of a command execution gets sent.
+type Output struct {
+	errors   []error
+	messages []fmt.Stringer
+}
+
+// Errorf formats an error message and adds it to the command output.
+func (o *Output) Errorf(format string, a ...any) {
+	o.errors = append(o.errors, fmt.Errorf(format, a...))
+}
+
+// Error formats an error message and adds it to the command output.
+func (o *Output) Error(a ...any) {
+	if len(a) == 1 {
+		if err, ok := a[0].(error); ok {
+			o.errors = append(o.errors, err)
+			return
+		}
+	}
+	o.errors = append(o.errors, errors.New(fmt.Sprint(a...)))
+}
+
+// Errort adds a translation as an error message and parameterises it using the
+// arguments passed. Errort panics if the number of arguments is incorrect.
+func (o *Output) Errort(t chat.Translation, a ...any) {
+	o.errors = append(o.errors, t.F(a...))
+}
+
+// Printf formats a (success) message and adds it to the command output.
+func (o *Output) Printf(format string, a ...any) {
+	o.messages = append(o.messages, stringer(fmt.Sprintf(format, a...)))
+}
+
+// Print formats a (success) message and adds it to the command output.
+func (o *Output) Print(a ...any) {
+	o.messages = append(o.messages, stringer(fmt.Sprint(a...)))
+}
+
+// Printt adds a translation as a (success) message and parameterises it using
+// the arguments passed. Printt panics if the number of arguments is incorrect.
+func (o *Output) Printt(t chat.Translation, a ...any) {
+	o.messages = append(o.messages, t.F(a...))
+}
+
+// Errors returns a list of all errors added to the command output. Usually
+// only one error message is set: After one error message, execution of a
+// command typically terminates.
+func (o *Output) Errors() []error {
+	return o.errors
+}
+
+// ErrorCount returns the count of errors that the command output has.
+func (o *Output) ErrorCount() int {
+	return len(o.errors)
+}
+
+// Messages returns a list of all messages added to the command output. The
+// amount of messages present depends on the command called.
+func (o *Output) Messages() []fmt.Stringer {
+	return o.messages
+}
+
+// MessageCount returns the count of (success) messages that the command output
+// has.
+func (o *Output) MessageCount() int {
+	return len(o.messages)
+}
+
+type stringer string
+
+func (s stringer) String() string { return string(s) }
+
+var MessageSyntax = chat.Translate(str("%commands.generic.syntax"), 3, `Syntax error: unexpected value: at "%v>>%v<<%v"`).Enc("<red>%v</red>")
+var MessageUsage = chat.Translate(str("%commands.generic.usage"), 1, `Usage: %v`).Enc("<red>%v</red>")
+var MessageUnknown = chat.Translate(str("%commands.generic.unknown"), 1, `Unknown command: "%v": Please check that the command exists and that you have permission to use it.`).Enc("<red>%v</red>")
+var MessageNoTargets = chat.Translate(str("%commands.generic.noTargetMatch"), 0, `No targets matched selector`).Enc("<red>%v</red>")
+var MessageNumberInvalid = chat.Translate(str("%commands.generic.num.invalid"), 1, `'%v' is not a valid number`).Enc("<red>> %v</red>")
+var MessageBooleanInvalid = chat.Translate(str("%commands.generic.boolean.invalid"), 1, `'%v' is not true or false`).Enc("<red>> %v</red>")
+var MessagePlayerNotFound = chat.Translate(str("%commands.generic.player.notFound"), 0, `That player cannot be found`).Enc("<red>> %v</red>")
+var MessageParameterInvalid = chat.Translate(str("%commands.generic.parameter.invalid"), 1, `'%v' is not a valid parameter`).Enc("<red>> %v</red>")
+
+type str string
+
+// Resolve returns the translation identifier as a string.
+func (s str) Resolve(language.Tag) string { return string(s) }