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/**
 * CQL Minus - cqlminus
 *
 * This file is licensed under the Affero General Public License version 3 or
 * later. See the COPYING file.
 *
 * @author Paolo Lulli <kevwe.com>
 * @copyright Paolo Lulli 2026
 */

package render

import (
    "cqlminus/internal/db"
    "fmt"
    "os"
    "strings"
    "text/tabwriter"
)

func PrintTable(result *db.QueryResult) {
    if len(result.Columns) == 0 {
        fmt.Println("query ok, no columns returned")
        return
    }

    if len(result.Rows) == 0 {
        fmt.Println("0 rows returned")
        return
    }

    w := tabwriter.NewWriter(os.Stdout, 0, 4, 2, ' ', 0)

    header := strings.Join(result.Columns, "\t")
    fmt.Fprintln(w, header)

    sep := make([]string, len(result.Columns))
    for i, c := range result.Columns {
        sep[i] = strings.Repeat("-", len(c))
    }
    fmt.Fprintln(w, strings.Join(sep, "\t"))

    for _, row := range result.Rows {
        fmt.Fprintln(w, strings.Join(row, "\t"))
    }

    w.Flush()
    fmt.Printf("(%d rows)\n", len(result.Rows))
}

func PrintError(err error) {
    fmt.Fprintf(os.Stderr, "error: %v\n", err)
}