Seasonal anime Identifier written in go

anime.go

package main

import (
	"errors"
	"fmt"
	"os"
	"strings"
)

type Episode struct {
	Name string `json:"name"`
}

const (
	subsPlease = "SubsPlease"
	eraiRaws   = "Erai-raws"
)

var (
	errorMessage = errors.New("invalid String provided")
)

func (e Episode) GetEncode() (encode string, err error) {
	switch {
	case strings.Contains(e.Name, subsPlease) || strings.Contains(e.Name, eraiRaws):
		splitName := strings.SplitAfter(e.Name, "]")
		if len(splitName) <= 1 {
			return "", fmt.Errorf("invalid String provided")
		}
		encode = splitName[0]
	}

	return
}

func (e Episode) GetResolution() (res string, err error) {
	switch {
	case strings.Contains(e.Name, subsPlease):
		splitName := strings.Split(e.Name, "(")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		splitName = strings.SplitAfter(splitName[1], ")")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		splitName = strings.Split(splitName[0], ")")
		if len(splitName) <= 1 {
			return "", errorMessage
		}
		res = splitName[0]

	case strings.Contains(e.Name, eraiRaws):
		splitName := strings.Split(e.Name, "[")
		if len(splitName) <= 2 {
			return "", errorMessage
		}

		splitName = strings.Split(splitName[2], "]")
		if len(splitName) <= 1 {
			return "", errorMessage
		}
		res = splitName[0]

	default:
		err = fmt.Errorf("no suitable encode provided for getting resolution")
	}

	return
}

func (e Episode) GetTitle() (title string, err error) {
	switch {
	case strings.Contains(e.Name, subsPlease):
		splitName := strings.Split(e.Name, "[")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		splitName = strings.Split(splitName[1], "] ")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		splitName = strings.Split(splitName[1], "- ")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		title = splitName[0]

	case strings.Contains(e.Name, eraiRaws):
		splitName := strings.SplitAfter(e.Name, "]")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		splitName = strings.Split(splitName[1], "[")
		if len(splitName) <= 1 {
			return "", errorMessage
		}

		title = splitName[0]
	}

	return
}

func main() {
	name := os.Args
	anime := Episode{Name: name[1]}
	encoder, err := anime.GetEncode()
	if err != nil {
		fmt.Println("Error while obtaining encoder", err)
	}

	title, err := anime.GetTitle()
	if err != nil {
		fmt.Println("Error while obtaining title", err)
	}

	resolution, err := anime.GetResolution()
	if err != nil {
		fmt.Println("Error while obtaining resolution", err)
	}
	fmt.Printf("Encoder :- %s\nTitle :- %s\nResolution :- %s", encoder, title, resolution)
}