/*
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"
)

func CcrFollower(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:    "follower",
		Aliases: []string{"f"},
		Usage:   "manage ccr follower indices",

		Commands: []*cli.Command{
			CcrFollowerShow(conf),
			CcrFollowerAdd(conf),
			CcrFollowerDelete(conf),
			CcrFollowerUnfollow(conf),
			CcrFollowerPause(conf),
			CcrFollowerResume(conf),
			CcrFollowerRenew(conf),
		},
	}
}

func CcrFollowerRenew(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "renew",
		Usage:     "renew ccr follower index",
		UsageText: "renew [options] <index>",

		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:        "force",
				Usage:       "force even if unfollow fails (e.g. because following is red anyway)",
				Destination: &conf.Force,
				Aliases:     []string{"f"},
			},
		},

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			return es.CcrFollowerRenew(conf, cmd.Args().Get(0))
		},
	}
}

func CcrFollowerResume(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "resume",
		Usage:     "resume ccr index to follow",
		UsageText: "resume [options] <index>",

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			return es.CcrFollowerResume(conf, cmd.Args().Get(0))
		},
	}
}

func CcrFollowerPause(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "pause",
		Usage:     "pause ccr index to follow",
		UsageText: "pause [options] <index>",

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			return es.CcrFollowerPause(conf, cmd.Args().Get(0))
		},
	}
}

func CcrFollowerUnfollow(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "unfollow",
		Usage:     "unfollow ccr follower index",
		UsageText: "unfollow [options] <index>",

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			return es.CcrFollowerUnfollow(conf, cmd.Args().Get(0))
		},
	}
}

func CcrFollowerAdd(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "add",
		Aliases:   []string{"+"},
		Usage:     "add ccr follower index",
		UsageText: "add [options] <index>",

		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:        "wait",
				Usage:       "wait for active shards",
				Destination: &conf.Wait,
				Aliases:     []string{"w"},
			},
		},

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			return es.CcrFollowerAdd(conf, cmd.Args().Get(0))
		},
	}
}

func CcrFollowerDelete(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "delete",
		Aliases:   []string{"rm"},
		Usage:     "delete ccr follower index",
		UsageText: "delete <index>",

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			// just an alias to index delete
			return es.IndexDelete(conf, cmd.Args().Get(0))
		},
	}
}

func CcrFollowerShow(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "show",
		Aliases:   []string{"sh"},
		Usage:     "show ccr follower index details",
		UsageText: "show <index>",

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

			if args.Len() != 1 {
				return errors.New("missing arguments: <index>")
			}

			return es.CcrFollowerShow(conf, cmd.Args().Get(0))
		},
	}
}