1 files changed, 30 insertions, 0 deletions

diff --git a/components/wisp_relay/flash_monitor.c b/components/wisp_relay/flash_monitor.c
new file mode 100644
index 0000000..ceb8c3b
--- /dev/null
+++ b/components/wisp_relay/flash_monitor.c
@@ -0,0 +1,30 @@
+#include "flash_monitor.h"
+#include "esp_littlefs.h"
+#include "esp_log.h"
+#include <string.h>
+
+static const char *TAG = "flash_monitor";
+
+void flash_get_health(const char *partition_label, flash_health_t *health)
+{
+    memset(health, 0, sizeof(flash_health_t));
+
+    esp_err_t ret = esp_littlefs_info(partition_label,
+                                       &health->total_bytes,
+                                       &health->used_bytes);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "Failed to get LittleFS info: %s", esp_err_to_name(ret));
+        return;
+    }
+
+    if (health->total_bytes == 0) {
+        health->free_bytes = 0;
+        health->usage_percent = 0.0f;
+    } else {
+        health->free_bytes = health->total_bytes - health->used_bytes;
+        health->usage_percent = (float)health->used_bytes / health->total_bytes * 100.0f;
+    }
+
+    ESP_LOGD(TAG, "Flash: %.1f%% used (%zu/%zu bytes)",
+             health->usage_percent, health->used_bytes, health->total_bytes);
+}