From 82a2328571205dd3f11ab67560d0ca032b262bac Mon Sep 17 00:00:00 2001
From: Bogdan <bogd@live.ru>
Date: Sat, 28 Jan 2023 10:22:05 +0200
Subject: [PATCH] wifi web interface scan implemented

---
 include/NetTransport.h |  2 ++
 src/HTTPPostSystem.c   |  8 ++++++++
 src/HTTPPrintSystem.c  | 21 +++++++++++++--------
 src/WiFiTransport.c    | 33 ++++++++++++++++++++++-----------
 4 files changed, 45 insertions(+), 19 deletions(-)

diff --git a/include/NetTransport.h b/include/NetTransport.h
index f93cf7e..16b4ed5 100644
--- a/include/NetTransport.h
+++ b/include/NetTransport.h
@@ -50,6 +50,8 @@ QueueHandle_t MQTT1MessagesQueueHandle;
 QueueHandle_t MQTT2MessagesQueueHandle;
 EventGroupHandle_t transport_event_group;
 
+wifi_ap_record_t* GetWiFiAPRecord(uint8_t n);
+
 void StartTimeGet(void);
 
 void WiFiAPStart(void);
diff --git a/src/HTTPPostSystem.c b/src/HTTPPostSystem.c
index 51f7400..582213e 100644
--- a/src/HTTPPostSystem.c
+++ b/src/HTTPPostSystem.c
@@ -216,6 +216,14 @@ static HTTP_IO_RESULT HTTPPostAdaptersSettings(httpd_req_t *req, char *PostData)
     }
 #endif
 
+    if (httpd_query_key_value(PostData, "wifisc", tmp, 4) == ESP_OK)
+    {
+        if (!strcmp(tmp, (const char*) "prs"))
+        {
+            WiFiScan();
+        }
+    }
+
     if (httpd_query_key_value(PostData, "save", tmp, 5) == ESP_OK ||
             httpd_query_key_value(PostData, "apply", tmp, 5) == ESP_OK)
     {
diff --git a/src/HTTPPrintSystem.c b/src/HTTPPrintSystem.c
index 0098d0c..4d94fee 100644
--- a/src/HTTPPrintSystem.c
+++ b/src/HTTPPrintSystem.c
@@ -182,15 +182,14 @@ static void HTTPPrint_fver(char *VarData, void *arg)
 
 static void HTTPPrint_fverav(char *VarData, void *arg)
 {
-        snprintf(VarData, MAX_DYNVAR_LENGTH, "%s", GetAvailVersion());
+    snprintf(VarData, MAX_DYNVAR_LENGTH, "%s", GetAvailVersion());
 }
 
 static void HTTPPrint_updstat(char *VarData, void *arg)
 {
-        snprintf(VarData, MAX_DYNVAR_LENGTH, "%s", GetUpdateStatus());
+    snprintf(VarData, MAX_DYNVAR_LENGTH, "%s", GetUpdateStatus());
 }
 
-
 static void HTTPPrint_idfver(char *VarData, void *arg)
 {
     esp_app_desc_t cur_app_info;
@@ -347,6 +346,15 @@ static void HTTPPrint_apmacadr(char *VarData, void *arg)
 {
     PrintMACFromInterface(VarData, arg, GetAPNetifAdapter());
 }
+static void HTTPPrint_wifisc(char *VarData, void *arg)
+{
+    wifi_ap_record_t *R = GetWiFiAPRecord(*(uint8_t*) (arg));
+    if (!R)
+        return;
+    snprintf(VarData, MAX_DYNVAR_LENGTH, "{\"ssid\":\"%s\",\"rssi\":%i,\"ch\":%d}", R->ssid, R->rssi,
+             R->primary);
+}
+
 #endif
 
 #if CONFIG_WEBGUIAPP_ETHERNET_ENABLE
@@ -481,7 +489,6 @@ void HTTPPrint_gsmmac(char *VarData, void *arg)
 }
 #endif
 
-
 #ifdef CONFIG_WEBGUIAPP_LORAWAN_ENABLE
 /*LORAWAN settings*/
 void HTTPPrint_lren(char *VarData, void *arg)
@@ -639,7 +646,7 @@ static void HTTPPrint_hide_mqtt2(char *VarData, void *arg)
 #if CONFIG_WEBGUIAPP_MQTT_CLIENTS_NUM == 2
     snprintf(VarData, MAX_DYNVAR_LENGTH, " ");
 #else
-        snprintf(VarData, MAX_DYNVAR_LENGTH, "hide");
+    snprintf(VarData, MAX_DYNVAR_LENGTH, "hide");
 #endif
 }
 
@@ -695,7 +702,6 @@ dyn_var_handler_t HANDLERS_ARRAY[] = {
         { "fverav", sizeof("fverav") - 1, &HTTPPrint_fverav },
         { "updstat", sizeof("updstat") - 1, &HTTPPrint_updstat },
 
-
         { "idfver", sizeof("idfver") - 1, &HTTPPrint_idfver },
         { "builddate", sizeof("builddate") - 1, &HTTPPrint_builddate },
         { "serial", sizeof("serial") - 1, &HTTPPrint_serial },
@@ -730,6 +736,7 @@ dyn_var_handler_t HANDLERS_ARRAY[] = {
         { "dns3", sizeof("dns3") - 1, &HTTPPrint_dns3 },
         { "macadr", sizeof("macadr") - 1, &HTTPPrint_macadr },
         { "apmacadr", sizeof("apmacadr") - 1, &HTTPPrint_apmacadr },
+        { "wifisc", sizeof("wifisc") - 1, &HTTPPrint_wifisc },
         #endif
 
 #if CONFIG_WEBGUIAPP_ETHERNET_ENABLE
@@ -746,8 +753,6 @@ dyn_var_handler_t HANDLERS_ARRAY[] = {
         { "emacadr", sizeof("emacadr") - 1, &HTTPPrint_emacadr },
         #endif
 
-
-
 #if CONFIG_WEBGUIAPP_GPRS_ENABLE
         /*GSM modem*/
         { "gsmen", sizeof("gsmen") - 1, &HTTPPrint_gsmen },
diff --git a/src/WiFiTransport.c b/src/WiFiTransport.c
index 7b7fa1a..a76c155 100644
--- a/src/WiFiTransport.c
+++ b/src/WiFiTransport.c
@@ -48,6 +48,19 @@ static EventGroupHandle_t s_wifi_event_group;
 static int s_retry_num = 0;
 static bool isWiFiGotIp = false;
 
+#define DEFAULT_SCAN_LIST_SIZE 20
+static wifi_ap_record_t ap_info[DEFAULT_SCAN_LIST_SIZE];
+static bool isScanReady = false;
+
+wifi_ap_record_t* GetWiFiAPRecord(uint8_t n)
+{
+    if (n < DEFAULT_SCAN_LIST_SIZE)
+    {
+        return &ap_info[n];
+    }
+    return NULL;
+}
+
 esp_netif_t* GetSTANetifAdapter(void)
 {
     return sta_netif;
@@ -484,23 +497,21 @@ void WiFiSTAStart(void)
     xTaskCreate(wifi_init_sta, "InitStationTask", 1024 * 4, (void*) 0, 3, NULL);
 }
 
-#define DEFAULT_SCAN_LIST_SIZE 20
-
-void WiFiScan(void)
+static void wifi_scan(void *arg)
 {
     uint16_t number = DEFAULT_SCAN_LIST_SIZE;
-    wifi_ap_record_t ap_info[DEFAULT_SCAN_LIST_SIZE];
     uint16_t ap_count = 0;
     memset(ap_info, 0, sizeof(ap_info));
-
     esp_wifi_scan_start(NULL, true);
     ESP_ERROR_CHECK(esp_wifi_scan_get_ap_records(&number, ap_info));
     ESP_ERROR_CHECK(esp_wifi_scan_get_ap_num(&ap_count));
     ESP_LOGI(TAG, "Total APs scanned = %u", ap_count);
-    for (int i = 0; (i < DEFAULT_SCAN_LIST_SIZE) && (i < ap_count); i++)
-    {
-        ESP_LOGI(TAG, "SSID \t\t%s", ap_info[i].ssid);
-        ESP_LOGI(TAG, "RSSI \t\t%d", ap_info[i].rssi);
-        ESP_LOGI(TAG, "Channel \t\t%d\n", ap_info[i].primary);
-    }
+    isScanReady = true;
+    vTaskDelete(NULL);
+}
+
+void WiFiScan(void)
+{
+    isScanReady = false;
+    xTaskCreate(wifi_scan, "ScanWiFiTask", 1024 * 4, (void*) 0, 3, NULL);
 }