package main

import (
	"os"
)

func queryInt(sql string, params ...interface{}) (int, os.Error) {
	query, err := db.Prepare(sql)
	if err != nil {
		return 0, err
	}
	err = query.BindParams(params...)
	if err != nil {
		return 0, err
	}
	err = query.Execute()
	if err != nil {
		return 0, err
	}
	var result int
	query.BindResult(&result)
	eof, err := query.Fetch()
	if err != nil {
		return 0, err
	} else if eof {
		return 0, os.EOF
	}
	err = query.FreeResult()
	if err != nil {
		return 0, err
	}
	return result, nil
}

// given an id ('abcd1234'), return the pid (1)
func getpid(id string) int {
	pid, err := queryInt("SELECT `pid` FROM `playlist` WHERE `id` = ?", id)
	if err != nil {
		return -1
	}
	return pid
}