package db

import "fmt"

func IncrementXP(discordID string, amount int) error {
	_, err := db.Exec(
		"INSERT INTO xp(id, xp) VALUES(?, ?) ON CONFLICT(id) DO UPDATE SET xp = xp+?",
		discordID, amount, amount,
	)
	if err != nil {
		return fmt.Errorf("db: IncrementXP: underlying SQL error on 'insert' (%s, %d): %w", discordID, amount, err)
	}
	return nil
}

func GetXP(discordID string) (int, error) {
	rows, err := db.Query("SELECT xp FROM xp WHERE id=?", discordID)
	if err != nil {
		return 0, fmt.Errorf("db: GetXP: underlying SQL error on 'select' (%s): %w", discordID, err)
	}
	defer rows.Close()
	if rows.Next() {
		var xp int
		rows.Scan(&xp)
		return xp, nil
	}
	return 0, nil
}