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package console
import (
"context"
"fmt"
"strings"
"gitoa.ru/go-4devs/console/input"
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"gitoa.ru/go-4devs/console/input/argument"
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"gitoa.ru/go-4devs/console/input/option"
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"gitoa.ru/go-4devs/console/input/validator"
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"gitoa.ru/go-4devs/console/output"
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"gitoa.ru/go-4devs/console/output/descriptor"
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)
const defaultLenNamespace = 2
//nolint: gochecknoinits
func init() {
MustRegister(list())
}
func list() *Command {
return &Command{
Name: CommandList,
Description: "Lists commands",
Help: `
The <info>{{ .Name }}</info> command lists all commands:
<info>{{ .Bin }} {{ .Name }}</info>
You can also display the commands for a specific namespace:
<info>{{ .Bin }} {{ .Name }} test</info>
You can also output the information in other formats by using the <comment>--format</comment> option:
<info>{{ .Bin }} {{ .Name }} --format=xml</info>
`,
Execute: func(ctx context.Context, in input.Input, out output.Output) error {
ns := in.Argument(ctx, "namespace").String()
format := in.Option(ctx, helpOptFormat).String()
des, err := descriptor.Find(format)
if err != nil {
return err
}
cmds := Commands()
commands := descriptor.Commands{
Namespace: ns,
Definition: Default(input.NewDefinition()),
}
groups := make(map[string]*descriptor.NSCommand)
namespaces := make([]string, 0, len(cmds))
empty := descriptor.NSCommand{}
for _, name := range cmds {
if ns != "" && !strings.HasPrefix(name, ns+":") {
continue
}
cmd, _ := Find(name)
if cmd.Hidden {
continue
}
gn := strings.SplitN(name, ":", 2)
if len(gn) != defaultLenNamespace {
empty.Append(cmd.Name, cmd.Description)
continue
}
if _, ok := groups[gn[0]]; !ok {
groups[gn[0]] = &descriptor.NSCommand{
Name: gn[0],
}
namespaces = append(namespaces, gn[0])
}
groups[gn[0]].Append(name, cmd.Description)
}
if len(empty.Commands) > 0 {
commands.Commands = append(commands.Commands, empty)
}
for _, name := range namespaces {
commands.Commands = append(commands.Commands, *groups[name])
}
if ns != "" && len(commands.Commands) == 0 {
return fmt.Errorf("%w: namespace %s", ErrNotFound, ns)
}
return des.Commands(ctx, out, commands)
},
Configure: func(ctx context.Context, config *input.Definition) error {
formats := descriptor.Descriptors()
config.
SetArguments(
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argument.New("namespace", "The namespace name"),
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).
SetOptions(
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option.New(helpOptFormat, fmt.Sprintf("The output format (%s)", strings.Join(formats, ", ")),
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option.Required,
option.Default(formats[0]),
option.Valid(
validator.NotBlank(0),
validator.Enum(formats...),
),
),
)
return nil
},
}
}