Moved around more code. Implemented more sqlc. Added support to generate swagger.

Added support for profiling. Removed the pkg module altogether.
Everything except old sync is now using code generated by sqlc.

internal/backend/characters.go

@@ -0,0 +1,35 @@
+package backend
+
+import (
+	"log"
+	"os"
+	"strings"
+)
+
+func GetCharacters() []string {
+	musicPath := os.Getenv("MUSIC_PATH")
+	charactersPath := musicPath + "characters/"
+	files, err := os.ReadDir(charactersPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	var characters []string
+	for _, file := range files {
+		if isImage(file) {
+			characters = append(characters, file.Name())
+		}
+	}
+	return characters
+}
+
+func GetCharacter(character string) string {
+	musicPath := os.Getenv("MUSIC_PATH")
+	charactersPath := musicPath + "characters/"
+	return charactersPath + character
+}
+
+func isImage(entry os.DirEntry) bool {
+	return !entry.IsDir() && (strings.HasSuffix(entry.Name(), ".jpg") || strings.HasSuffix(entry.Name(), ".png"))
+}
+