/*
Copyright © 2026 Thomas von Dein

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd

import (
	"context"
	"errors"

	"codeberg.org/scip/esctl/pkg/cfg"
	"codeberg.org/scip/esctl/pkg/es"

	"github.com/urfave/cli/v3"
)

const (
	SETTINGS = ``
)

func ClusterSettings(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:    "settings",
		Usage:   "cluster settings management",
		Aliases: []string{"config"},

		Commands: []*cli.Command{
			ClusterSettingsList(conf),
			ClusterSettingsSet(conf),
		},
	}
}

func ClusterSettingsList(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:    "list",
		Usage:   "show cluster settings",
		Aliases: []string{"ls", "get"},

		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:        "persistent",
				Usage:       "only show persistent setting[s] (default)",
				Destination: &conf.Persistent,
				Aliases:     []string{"p"},
			},
			&cli.BoolFlag{
				Name:        "transient",
				Usage:       "only show transient setting[s]",
				Destination: &conf.Transient,
				Aliases:     []string{"t"},
			},
			&cli.BoolFlag{
				Name:        "default",
				Usage:       "only show default setting[s]",
				Destination: &conf.Default,
				Aliases:     []string{"D"},
			},
		},

		Action: func(ctx context.Context, cmd *cli.Command) error {
			if err := es.ClusterSettingsList(conf); err != nil {
				return err
			}

			return nil
		},
	}
}

func ClusterSettingsSet(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "set",
		Usage:     "set|update cluster settings",
		Aliases:   []string{"set", "update"},
		UsageText: "set [options] setting:value [setting:value ...]",
		CustomHelpTemplate: addReference(
			"https://www.elastic.co/docs/reference/elasticsearch/configuration-reference"),

		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:        "persistent",
				Usage:       "add persistent setting[s] (default)",
				Destination: &conf.Persistent,
				Aliases:     []string{"p"},
			},
			&cli.BoolFlag{
				Name:        "transient",
				Usage:       "add transient setting[s]",
				Destination: &conf.Transient,
				Aliases:     []string{"t"},
			},
		},

		Action: func(ctx context.Context, cmd *cli.Command) error {
			args := cmd.Args()

			if args.Len() == 0 {
				return errors.New("at least one setting must be specified (format: setting:value)")
			}

			if err := es.ClusterSettingsSet(conf, cmd.Args()); err != nil {
				return err
			}

			return nil
		},
	}
}