More on retrieving and parsing dates.

src/utils.h

@@ -1,8 +1,26 @@
 #pragma once
 
+#include <chrono>
 #include <string>
+#include <vector>
 
 #include "pico/cyw43_arch.h"
 
-static int wifi_setup_impl(uint32_t country, const std::string &ssid, const std::string &pw, bool firstTry = true);
+enum class Waste {
+    Restmuell,
+    GelberSack,
+    Papiertonne,
+    Biotonne,
+    Problemstoffmobil,
+};
+
+struct WasteDate {
+    std::chrono::year_month_day date;
+    std::vector<Waste> wasteTypes;
+};
+
+std::vector<WasteDate> parseCsv(const std::string& csv);
+
+static int wifi_setup_impl(uint32_t country, const std::string &ssid, const std::string &pw,
+                           bool firstTry = true);
 void wifi_setup();