/*
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 es

import (
	"context"
	"encoding/json"
	"fmt"
	"log/slog"

	"codeberg.org/scip/esctl/pkg/cfg"
	"codeberg.org/scip/esctl/pkg/printer"
)

type searchQlColumn struct {
	Name string `json:"name"`
	Type string `json:"type"`
}

type searchQlResult struct {
	Partial bool             `json:"is_partial"`
	Docs    int              `json:"documents_found"`
	Columns []searchQlColumn `json:"columns"`
	Values  [][]any          `json:"values"`
}

func SearchQL(conf *cfg.Config, querystring string) error {
	query := conf.DefaultCluster.ES().Esql.Query().
		Query(querystring).
		DropNullColumns(true)

	res, err := query.Do(context.Background())
	if err != nil {
		return fmt.Errorf("failed to run esql query: %w", esErrorString(err))
	}

	if conf.Debug {
		fmt.Println(string(res))
	}

	qlResult := searchQlResult{}

	if err = json.Unmarshal(res, &qlResult); err != nil {
		return fmt.Errorf("failed to unmarshal esql result: %w", err)
	}

	slog.Debug("searchql result", "qlres", qlResult)

	if qlResult.Docs == 0 {
		return nil
	}

	table := printer.NewTable(conf, len(qlResult.Columns), len(qlResult.Values))

	headers := make([]string, len(qlResult.Columns))
	for idx, col := range qlResult.Columns {
		headers[idx] = col.Name
	}

	table.Addheaders(headers...)

	table.Entries = qlResult.Values

	return table.Print()
}