From 5f036f9ac828ef2620593ae743ffcc53ec410fcb Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Mon, 7 Sep 2020 13:42:51 +0200
Subject: warn on outdated information

---
 anzeige.c | 71 ++++++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 43 insertions(+), 28 deletions(-)

diff --git a/anzeige.c b/anzeige.c
index 6f906d9..d235e10 100644
--- a/anzeige.c
+++ b/anzeige.c
@@ -68,6 +68,7 @@ int main(int argc, char **argv)
   char *text_buffer;
   char *text_buffer_end;
   char text_buffers[OUTPUT_IDX_MAX][MAX_TEXT_OUTPUT_LEN];
+  char output_text_buffer[MAX_TEXT_OUTPUT_LEN];
   char humidity_text_buffer[MAX_TEXT_OUTPUT_LEN];
   double outside_temperature = 0, outside_humidity = 0, inside_temperature = 0, inside_humidity = 0;
   int updated = 0;
@@ -81,9 +82,12 @@ int main(int argc, char **argv)
   }
   memset(text_buffer, 0, TEXT_BUFFER_LENGTH);
   memset(text_buffers, 0, OUTPUT_IDX_MAX * MAX_TEXT_OUTPUT_LEN);
+  memset(output_text_buffer, 0, MAX_TEXT_OUTPUT_LEN);
 
-  for (int i=0; i<THREAD_IDX_MAX; i++)
+  for (int i=0; i<THREAD_IDX_MAX; i++) {
     input_threads[i].keep_running = 1;
+    input_threads[i].last_update = 0;
+  }
 
   pthread_create(&input_threads[THREAD_IDX_WARNINGS].thread_id, NULL, gadgets_watch_weather_warnings, &input_threads[THREAD_IDX_WARNINGS]);
   pthread_create(&input_threads[THREAD_IDX_OUTSIDE].thread_id, NULL, gadgets_watch_current_temperature, &input_threads[THREAD_IDX_OUTSIDE]);
@@ -98,35 +102,45 @@ int main(int argc, char **argv)
       for (int i=0; i<THREAD_IDX_MAX; i++)
         input_threads[i].force_update = 1;
     }
-    for (int i=0; i<THREAD_IDX_MAX; i++)
-      if (input_threads[i].output_ready) {
-        if (strcmp(text_buffers[i], input_threads[i].text_output)) {
-          strncpy(text_buffers[i], input_threads[i].text_output, MAX_TEXT_OUTPUT_LEN);
+    for (int i=0; i<THREAD_IDX_MAX; i++) {
+      int outdated = (input_threads[i].last_update < time(NULL) - 3600);
+      if (input_threads[i].output_ready || outdated) {
+        if (outdated)
+          snprintf(output_text_buffer, MAX_TEXT_OUTPUT_LEN, "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c", 0xEE, 0x01, 0xEE, 0x02, 0xEE, 0x01, 0xEE, 0x02, 0xEE, 0x05, 0xEE, 0x06, 0xEE, 0x05, 0xEE, 0x06);
+        else
+          strncpy(output_text_buffer, input_threads[i].text_output, MAX_TEXT_OUTPUT_LEN);
+        if (strcmp(text_buffers[i], output_text_buffer)) {
+          strncpy(text_buffers[i], output_text_buffer, MAX_TEXT_OUTPUT_LEN);
           updated = 1;
         }
-        if (i == THREAD_IDX_OUTSIDE) {
-          if (outside_temperature != input_threads[i].double_output[0])
-            outside_temperature = input_threads[i].double_output[0];
-          if (outside_humidity != input_threads[i].double_output[1])
-            outside_humidity = input_threads[i].double_output[1];
-        }
-        if (i == THREAD_IDX_INSIDE) {
-          if (inside_temperature != input_threads[i].double_output[0])
-            inside_temperature = input_threads[i].double_output[0];
-          if (inside_humidity != input_threads[i].double_output[1])
-            inside_humidity = input_threads[i].double_output[1];
-        }
-        if (((i == THREAD_IDX_OUTSIDE) || (i == THREAD_IDX_INSIDE)) &&
-          ((outside_temperature!=0) || (outside_humidity!=0)) &&
-          ((inside_temperature!=0) || (inside_humidity!=0))) {
-          gadgets_calculate_humidity_level(
-            humidity_text_buffer,
-            MAX_TEXT_OUTPUT_LEN,
-            outside_temperature,
-            outside_humidity,
-            inside_temperature,
-            inside_humidity
-          );
+        if ((i == THREAD_IDX_OUTSIDE) || (i == THREAD_IDX_INSIDE)) {
+          if (outdated) {
+            snprintf(humidity_text_buffer, MAX_TEXT_OUTPUT_LEN, "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c", 0xEE, 0x01, 0xEE, 0x02, 0xEE, 0x01, 0xEE, 0x02, 0xEE, 0x05, 0xEE, 0x06, 0xEE, 0x05, 0xEE, 0x06);
+          } else {
+            if (i == THREAD_IDX_OUTSIDE) {
+              if (outside_temperature != input_threads[i].double_output[0])
+                outside_temperature = input_threads[i].double_output[0];
+              if (outside_humidity != input_threads[i].double_output[1])
+                outside_humidity = input_threads[i].double_output[1];
+            }
+            if (i == THREAD_IDX_INSIDE) {
+              if (inside_temperature != input_threads[i].double_output[0])
+                inside_temperature = input_threads[i].double_output[0];
+              if (inside_humidity != input_threads[i].double_output[1])
+                inside_humidity = input_threads[i].double_output[1];
+            }
+            if (((outside_temperature!=0) || (outside_humidity!=0)) &&
+              ((inside_temperature!=0) || (inside_humidity!=0))) {
+              gadgets_calculate_humidity_level(
+                humidity_text_buffer,
+                MAX_TEXT_OUTPUT_LEN,
+                outside_temperature,
+                outside_humidity,
+                inside_temperature,
+                inside_humidity
+              );
+            }
+          }
           if (strcmp(text_buffers[THREAD_IDX_INSIDE], humidity_text_buffer)) {
             strncpy(text_buffers[THREAD_IDX_INSIDE], humidity_text_buffer, MAX_TEXT_OUTPUT_LEN);
             updated = 1;
@@ -134,6 +148,7 @@ int main(int argc, char **argv)
         }
         input_threads[i].output_ready = 0;
       }
+    }
     if (updated)
       updated ++;
     if (updated > 15) {
-- 
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