package main

import (
	"fmt"
	"os/exec"
	"strings"
)

func CmusRemoteOutput() ([]string, error) {
	c := exec.Command("cmus-remote", "-Q")
	o, err := c.Output()
	if err != nil {
		return []string{}, err
	}

	resp := strings.Split(string(o), "\n")
	return resp, err
}

func getAttribute(input []string, prefix ...string) (string, error) {
	var attr string
	// probably more efficent to simply parse first selected list of prefixes, but i'd prefer it be first prefix in the preferred order
	for p := range prefix {
		for i := range input {
			has := strings.HasPrefix(input[i], prefix[p])
			if has {
				attr = input[i]
				attr, b := strings.CutPrefix(attr, prefix[p])
				if !b {
					return "", fmt.Errorf("prefix \"%v\" in \"%v\" does not exist", prefix, attr)
				}

				return attr, nil
			}
		}
	}
	return "", fmt.Errorf("prefixes \"%v\" were not found", prefix)
}