move middleware and routes/ app into internal dir

src/internal/app/app.go

@@ -0,0 +1,32 @@
+package app
+
+import (
+	"crowsnest/internal/model/database"
+	"database/sql"
+	"net/http"
+)
+
+type App struct {
+	articles *database.ArticleModel
+}
+
+func NewApp(db *sql.DB) *App {
+	return &App{
+		articles: &database.ArticleModel{DB: db},
+	}
+}
+
+func (app *App) Routes() http.Handler {
+	mux := http.NewServeMux()
+
+	// dynamic routes
+	mux.Handle("GET /", http.HandlerFunc(app.Index))
+	mux.Handle("GET /page/{id}", http.HandlerFunc(app.Index))
+	mux.Handle("POST /up/search", http.HandlerFunc(app.UpSearch))
+
+	// serve files from the "static" directory
+	fs := http.FileServer(http.Dir("assets/static"))
+	mux.Handle("GET /static/", http.StripPrefix("/", fs))
+
+	return mux
+}