1 files changed, 66 insertions, 0 deletions
diff --git a/internal/service/service.go b/internal/service/service.go
new file mode 100644
index 0000000..49647fe
--- /dev/null
+++ b/internal/service/service.go
@@ -0,0 +1,66 @@
+package services
+
+// service defines any Music service recognized by song.link
+// Since most services have multiple url version (long, short, etc...),
+// it is allowd to have multiple ones.
+// This allows for seamless song link detection
+type service struct {
+	name     string
+	patterns []string
+}
+
+func GetServices() []service {
+	return []service{
+		*New(
+			"Apple Music",
+			[]string{"https://music.apple.com/"},
+		),
+		*New(
+			"Spotify",
+			[]string{"https://open.spotify.com/track/", "https://open.spotify.com/album/", "https://open.spotify.com/playlist/"},
+		),
+		*New(
+			"Youtube Music",
+			[]string{"https://music.youtube.com/"},
+		),
+		// *New(
+		// 	"Amazon Music",
+		// 	[]string{"https://music.amazon.com/",},
+		// ),
+		*New(
+			"Tidal",
+			[]string{"https://tidal.com/"},
+		),
+		*New(
+			"Deezer",
+			[]string{"https://www.deezer.com/"},
+		),
+		*New(
+			"Pandora",
+			[]string{"https://www.pandora.com/"},
+		),
+	}
+}
+
+func New(name string, patterns []string) *service {
+	return &service{name, patterns}
+}
+
+func (s *service) Name() string {
+	return s.name
+}
+
+func (s *service) Owns(url string) bool {
+	// If the url begins the same as any of the patterns, it is owned by the service
+	for _, pattern := range s.patterns {
+		if len(url) >= len(pattern) && url[:len(pattern)] == pattern {
+			return true
+		}
+	}
+	return false
+}
+
+// Resolve returns the song.link url for the given service url
+func (s *service) Resolve(url string) string {
+	return "https://song.link/" + url
+}