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/* guestbook - Standalone guestbook server for static websites
* Copyright (C) 2025-2026 Vidhu Kant Sharma <vidhukant@vidhukant.com>
*
* 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 <https://www.gnu.org/licenses/>.
*/
package cmd
import (
"fmt"
"log"
"bytes"
"text/template"
"vidhukant.com/guestbook/db"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var delCmd = &cobra.Command{
Use: "del",
Short: "Delete all entries permanently (will print to STDOUT for one last time)",
Long: "Delete all entries permanently (will print to STDOUT for one last time)",
Run: func(cmd *cobra.Command, args []string) {
guestbookName, err := cmd.Flags().GetString("guestbook")
if err != nil {
log.Fatal(err)
}
outputTemplate := viper.GetString(guestbookName + ".template")
conn := db.Connect()
defer conn.Close()
rows, err := conn.Query(fmt.Sprintf("SELECT name, website, message, time FROM %s ORDER BY time DESC", guestbookName))
if err != nil {
log.Fatal(err)
}
defer rows.Close()
var entries []db.GuestbookEntry
for rows.Next() {
var entry db.GuestbookEntry
if err := rows.Scan(&entry.Name, &entry.Website, &entry.Message, &entry.Time); err != nil {
log.Fatal(err)
}
entries = append(entries, entry)
}
if rows.Err() != nil {
log.Fatal(err)
}
tmpl, err := template.New("render").Parse(outputTemplate)
if err != nil {
log.Fatal(err)
}
var buf bytes.Buffer
if err := tmpl.Execute(&buf, entries); err != nil {
panic(err)
}
fmt.Println(buf.String())
_, err := conn.Exec(fmt.Sprintf("DELETE from %s", guestbookName))
if err != nil {
log.Fatal(err)
}
fmt.Println("All entries have been deleted.")
},
}
func init() {
rootCmd.AddCommand(delCmd)
dumpCmd.Flags().StringP("guestbook", "g", "my_guestbook", "Guestbook name (defined in /etc/guestbook.toml)")
}
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