Weather: code refactor

src/detection/weather/weather.c

@@ -0,0 +1,38 @@
+#include "weather.h"
+
+static FFNetworkingState state;
+static int status = -1;
+
+void ffPrepareWeather(FFWeatherOptions* options)
+{
+    if (status != -1)
+    {
+        fputs("Error: this module can only be used once due to internal limitations\n", stderr);
+        exit(1);
+    }
+
+    FF_STRBUF_AUTO_DESTROY path = ffStrbufCreateS("/");
+    if (options->location.length)
+        ffStrbufAppend(&path, &options->location);
+    ffStrbufAppendS(&path, "?format=");
+    ffStrbufAppend(&path, &options->outputFormat);
+    status = ffNetworkingSendHttpRequest(&state, "wttr.in", path.chars, "User-Agent: curl/0.0.0\r\n");
+}
+
+const char* ffDetectWeather(FFWeatherOptions* options, FFstrbuf* result)
+{
+    if(status == -1)
+        ffPrepareWeather(options);
+
+    if(status == 0)
+        return "Failed to connect to 'wttr.in'";
+
+    ffStrbufEnsureFree(result, 4095);
+    bool success = ffNetworkingRecvHttpResponse(&state, result, options->timeout);
+    if (success) ffStrbufSubstrAfterFirstS(result, "\r\n\r\n");
+
+    if(!success || result->length == 0)
+        return "Failed to receive the server response";
+
+    return NULL;
+}

src/detection/weather/weather.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#ifndef FF_INCLUDED_detection_weather_weather
+#define FF_INCLUDED_detection_weather_weather
+
+#include "common/networking.h"
+
+void ffPrepareWeather(FFWeatherOptions* options);
+const char* ffDetectWeather(FFWeatherOptions* options, FFstrbuf* result);
+
+#endif