arimelody.me/music/model/artist.go

package model

import "strings"

type (
	Artist struct {
		ID      string `json:"id"`
		Name    string `json:"name"`
		Website string `json:"website"`
		Avatar  string `json:"avatar"`
	}
)

func (artist Artist) GetWebsite() string {
	return artist.Website
}

func (artist Artist) GetAvatar() string {
	if artist.Avatar == "" {
		return "/img/default-avatar.png"
	}
	return artist.Avatar
}

func (release FullRelease) GetUniqueArtists(only_primary bool) []*Artist {
	var artists = []*Artist{}

	for _, credit := range release.Credits {
		if only_primary && !credit.Primary {
			continue
		}

		exists := false
		for _, a := range artists {
			if a.ID == credit.Artist.ID {
				exists = true
				break
			}
		}

		if exists {
			continue
		}

		artists = append(artists, &credit.Artist)
	}

	return artists
}

func (release FullRelease) GetUniqueArtistNames(only_primary bool) []string {
	var names = []string{}
	for _, artist := range release.GetUniqueArtists(only_primary) {
		names = append(names, artist.Name)
	}

	return names
}

func (release FullRelease) PrintArtists(only_primary bool, ampersand bool) string {
	names := release.GetUniqueArtistNames(only_primary)

	if len(names) == 0 {
		return "Unknown Artist"
	} else if len(names) == 1 {
		return names[0]
	}

	if ampersand {
		res := strings.Join(names[:len(names)-1], ", ")
		res += " & " + names[len(names)-1]
		return res
	} else {
		return strings.Join(names[:], ", ")
	}
}