/*
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 Roles(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:  "role",
		Usage: "manage roles",

		Commands: []*cli.Command{
			RoleList(conf),
			RoleShow(conf),
			RoleDiff(conf),
		},
	}
}

func RoleList(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:    "list",
		Aliases: []string{"ls"},
		Usage:   "list roles",

		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:        "orphaned",
				Usage:       "include only orphaned roles",
				Destination: &conf.Failed,
				Aliases:     []string{"o"},
			},
		},

		Action: func(ctx context.Context, cmd *cli.Command) error {
			return es.RoleList(conf)
		},
	}
}

func RoleShow(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "show",
		Aliases:   []string{"sh"},
		Usage:     "show details about a role",
		UsageText: "show [options] <role>",

		ShellComplete: func(ctx context.Context, cmd *cli.Command) {
			complete(conf, cmd, Crole)
		},

		Action: func(ctx context.Context, cmd *cli.Command) error {
			index := cmd.Args().Get(0)
			if index == "" {
				return errors.New("no role specified")
			}

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

func RoleDiff(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:  "diff",
		Usage: "show differences between roles and CSV baseline",
		UsageText: `diff [options] <file.csv> [<role>]
CSV format:
index_name;role;index_privilege;cluster_privilege;ad_group;space;retention;kibana_privilege;field_privilege`,

		MutuallyExclusiveFlags: []cli.MutuallyExclusiveFlags{{
			Flags: [][]cli.Flag{
				{
					&cli.BoolFlag{
						Name:        "not-deployed",
						Usage:       "include only not deployed but defined roles",
						Destination: &conf.NotDeployed,
						Aliases:     []string{"n"},
					},
				},
				{
					&cli.BoolFlag{
						Name:        "undefined",
						Usage:       "include only deployed but undefined roles",
						Destination: &conf.Undefined,
						Aliases:     []string{"u"},
					},
				},
				{
					&cli.BoolFlag{
						Name:        "diff",
						Usage:       "include only differing roles",
						Destination: &conf.Diff,
						Aliases:     []string{"D"},
					},
				},
			}},
		},

		Flags: []cli.Flag{
			&cli.StringFlag{
				Name:        "separator",
				Usage:       "CSV field separator",
				Destination: &conf.Separator,
				Aliases:     []string{"s"},
				Value:       ",",
			},
		},

		Action: func(ctx context.Context, cmd *cli.Command) error {
			csvfile := cmd.Args().Get(0)
			if csvfile == "" {
				return errors.New("no CSV file specified")
			}

			return es.RoleDiff(conf, cmd.Args().Get(0), cmd.Args().Get(1))
		},
	}
}