args.go

/*
 Copyright 2024 The lvm2go Authors.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
*/

package lvm2go

import (
	"slices"
	"strings"
)

type Arguments interface {
	AddOrReplaceAll(args []string)
	AddOrReplace(args ...string)
	GetType() ArgsType
	GetRaw() []string
}

type Argument interface {
	ApplyToArgs(args Arguments) error
}

type ArgumentGenerator interface {
	AsArgs() (Arguments, error)
}

type args struct {
	raw []string
	typ ArgsType
}

type ArgsType int8

const (
	ArgsTypeGeneric  ArgsType = iota
	ArgsTypeLVs      ArgsType = iota
	ArgsTypePVs      ArgsType = iota
	ArgsTypeVGs      ArgsType = iota
	ArgsTypeLVCreate ArgsType = iota
	ArgsTypeLVChange ArgsType = iota
	ArgsTypeVGCreate ArgsType = iota
	ArgsTypeVGChange ArgsType = iota
	ArgsTypeLVRename ArgsType = iota
)

func NewArgs(typ ArgsType) Arguments {
	return &args{typ: typ}
}

func (opt *args) AddOrReplaceAll(args []string) {
	for i := range args {
		if fi := slices.Index(opt.raw, args[i]); fi > -1 {
			opt.raw[fi] = args[i]
		} else {
			opt.raw = append(opt.raw, args[i])
		}
	}
}

func (opt *args) AddOrReplace(args ...string) {
	opt.AddOrReplaceAll(args)
}

func (opt *args) GetType() ArgsType {
	return opt.typ
}

func (opt *args) GetRaw() []string {
	return opt.raw
}

func (opt *args) String() string {
	return strings.Join(opt.raw, " ")
}