/*
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 Doc(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:  "doc",
		Usage: "manage documents",

		Commands: []*cli.Command{
			DocAdd(conf),
			DocShow(conf),
			DocDelete(conf),
		},
	}
}

func DocAdd(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "add",
		Aliases:   []string{"+"},
		Usage:     "add JSON document index",
		UsageText: "add [options] -i <index> '<json-doc>'",

		Flags: []cli.Flag{
			&cli.StringFlag{
				Name:        "index",
				Usage:       "index to work on",
				Sources:     cli.EnvVars("ES_INDEX"),
				Destination: &conf.Index,
				Aliases:     []string{"i"},
			},
		},

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

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

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

func DocShow(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "show",
		Aliases:   []string{"sh"},
		Usage:     "show a JSON document",
		UsageText: "show [options] -i <index> <id>",

		Flags: []cli.Flag{
			&cli.StringFlag{
				Name:        "index",
				Usage:       "index to work on",
				Sources:     cli.EnvVars("ES_INDEX"),
				Destination: &conf.Index,
				Aliases:     []string{"i"},
			},
			&cli.StringFlag{
				Name:        "path",
				Usage:       "jsonPath filter (e.g. source.message)",
				Destination: &conf.Path,
				Aliases:     []string{"p"},
			},
		},

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

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

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

func DocDelete(conf *cfg.Config) *cli.Command {
	return &cli.Command{
		Name:      "delete",
		Aliases:   []string{"rm"},
		Usage:     "delete JSON document[s] from index[es]",
		UsageText: "delete [options] -i <index> [<[field<sep>]pattern> ...]\n" + SearchUsage,

		Flags: []cli.Flag{
			&cli.BoolFlag{
				Name:        "all",
				Usage:       "delete all docs (dangerous!)",
				Destination: &conf.All,
				Aliases:     []string{"a"},
			},
			&cli.StringFlag{
				Name:        "index",
				Usage:       "index to work on",
				Sources:     cli.EnvVars("ES_INDEX"),
				Destination: &conf.Index,
				Aliases:     []string{"i"},
			},
			&cli.StringSliceFlag{
				Name:        "filter",
				Usage:       "additional boolean filters. format: key=value",
				Destination: &conf.Filter,
				Aliases:     []string{"F"},
			},
			&cli.StringFlag{
				Name:        "timerange",
				Usage:       "field:<date> to <date> (e.g. @timestamp:2026-05-05 to 2026-05-15)",
				Destination: &conf.Range,
				Aliases:     []string{"r"},
			},
			&cli.StringFlag{
				Name:        "timestamp-format",
				Usage:       "a valid ES builtin timestamp or custom format",
				Destination: &conf.TimestampFormat,
				Value:       "strict_date_hour_minute",
			},
			&cli.BoolFlag{
				Name:        "or",
				Usage:       "logical operator (default: and)",
				Destination: &conf.Or,
				Aliases:     []string{"O"},
			},
		},

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

			if args.Len() == 0 && !conf.All {
				return errors.New("missing arguments: <query>")
			}

			return es.DocDelete(conf, cmd.Args().Slice())
		},
	}
}