config: first version of storing pixel maps and configs in SPIFFS

src/Config.cpp

@@ -1,8 +1,16 @@
 #include "./Config.h"
 #include "./Static.h"
+#include "./Sequencer.h"
+
 #include <ArduinoLog.h>
+#include <ArduinoJson.h>
 #include <EEPROM.h>
 
+#include <LittleFS.h>
+#include <vector>
+
+StaticJsonDocument<256> jsonConfig;
+
 constexpr uint16_t HardwareConfig::MAX_LED_NUM;
 
 HardwareConfig
@@ -15,7 +23,7 @@ HardwareConfig::load() {
 #ifndef BOARD_TEENSY
     EEPROM.end();
 #endif
-    Log.notice("Loaded config version %d, CRC %d", ret.version, ret.checksum);
+    Log.notice("config: Loaded SRAM config version %d, CRC %d", ret.version, ret.checksum);
     return ret;
 }
 
@@ -33,18 +41,10 @@ HardwareConfig::save() {
 #endif
 }
 
-LinearCoordinateMapping
-HardwareConfig::toCoordMap() const
-{
-    auto pixelCount = min(HardwareConfig::MAX_LED_NUM, std::max((uint16_t)1, data.pixelCount));
-    auto startPixel = min(pixelCount, std::max((uint16_t)1, data.startPixel));
-    return LinearCoordinateMapping{pixelCount, startPixel};
-}
-
 bool
 HardwareConfig::isValid() const
 {
-    return version == 2 && checksum == getCRC() && data.pixelCount <= MAX_LED_NUM;
+    return version == 3 && checksum == getCRC();
 }
 
 uint8_t
@@ -68,18 +68,82 @@ HardwareConfig::getCRC() const
 void
 ConfigService::onStart()
 {
-    Log.notice("Starting configuration service...");
+    Log.notice("config: Starting configuration service...");
     m_config = HardwareConfig::load();
     if (m_config.isValid()) {
-        Log.notice("Configuration found!");
+        Log.notice("config: Configuration found!");
     } else {
-        Log.notice("No configuration found. Writing defaults...");
+        Log.notice("config: No configuration found. Writing defaults...");
         m_config = HardwareConfig{};
         m_config.save();
     }
-    m_coordMap = m_config.toCoordMap();
+    if (strlen(m_config.data.loadedProfile) == 0) {
+      strcpy(m_config.data.loadedProfile, "default");
+    }
+    loadProfile(m_config.data.loadedProfile);
+}
 
-    Log.notice("Configured to use %d pixels, starting at %d", m_config.data.pixelCount, m_config.data.startPixel);
+void
+ConfigService::loadMap(const String& mapName)
+{
+  String fname = String("/maps/") + mapName + ".json";
+  if (LittleFS.exists(fname)) {
+    File configFile = LittleFS.open(fname, "r");
+    Log.notice("config: Loading coordinate map %s", mapName.c_str());
+    deserializeJson(jsonConfig, configFile);
+    configFile.close();
+    JsonArray strideList = jsonConfig["strides"];
+    m_jsonMap.load(strideList);
+  } else {
+      Log.warning("config: Couldn't load coordinate map %s!!! Defaulting to linear mapping.", mapName.c_str());
+      m_jsonMap.loadDefault();
+  }
+}
+
+void
+ConfigService::loadProfile(const char* profileName)
+{
+    Log.notice("config: Loading profile %s...", profileName);
+    String fname = String("/profiles/") + profileName + ".json";
+
+    LittleFS.begin();
+    if (LittleFS.exists(fname)) {
+      File configFile = LittleFS.open(fname, "r");
+      jsonConfig.clear();
+      deserializeJson(jsonConfig, configFile);
+      configFile.close();
+
+      JsonObject sceneList = jsonConfig["scenes"];
+      std::vector<Sequencer::Scene> scenes;
+      for(JsonPair pair : sceneList) {
+        Log.notice("config: \tFound scene %s", pair.key().c_str());
+        std::vector<const char*> patterns;
+        for(const char* taskName : pair.value().as<JsonArray>()) {
+          patterns.push_back(taskName);
+        }
+        scenes.push_back(Sequencer::Scene{pair.key().c_str(), patterns});
+      }
+      Static<Sequencer>::instance()->setScenes(std::move(scenes));
+
+      JsonArray taskList = jsonConfig["tasks"];
+      Log.notice("config: Starting %d tasks", taskList.size());
+      for(int i = 0; i < taskList.size();i++) {
+        MainLoop::instance()->dispatch(InputEvent{InputEvent::StartThing, taskList[i].as<const char*>()});
+      }
+      Log.notice("config: Loaded!");
+    } else {
+      Log.warning("config: Could not load profile %s!", profileName);
+    }
+
+    String configName = jsonConfig["surfaceMap"];
+    jsonConfig.clear();
+    loadMap(configName);
+    LittleFS.end();
+    Log.notice("config: Configured to use %d pixels", m_jsonMap.physicalPixelCount());
+    PhysicalCoordinates topLeft = m_jsonMap.virtualToPhysicalCoords({0, 0});
+    PhysicalCoordinates bottomRight = m_jsonMap.virtualToPhysicalCoords({255, 255});
+    Log.verbose("  (0,0) -> (%d, %d) -> %d", topLeft.x, topLeft.y, m_jsonMap.physicalCoordsToIndex(topLeft));
+    Log.verbose("  (255,255) -> (%d, %d) -> %d", bottomRight.x, bottomRight.y, m_jsonMap.physicalCoordsToIndex(bottomRight));
 }
 
 void
@@ -87,24 +151,22 @@ ConfigService::loop()
 {
 }
 
+const char*
+ConfigService::loadedProfile() const
+{
+    return m_config.data.loadedProfile;
+}
+
 void
 ConfigService::handleEvent(const InputEvent &evt)
 {
     switch(evt.intent) {
-        case InputEvent::SetDisplayLength:
-            //Log.info("Updating pixel count from %d to %d", m_coordMap.pixelCount, evt.asInt());
-            m_config.data.pixelCount = evt.asInt();
-            m_coordMap = m_config.toCoordMap();
-            //Log.info("Count is now %d", m_coordMap.pixelCount);
-            break;
-        case InputEvent::SetDisplayOffset:
-            //Log.info("Updating pixel offset from %d to %d", m_coordMap.startPixel, evt.asInt());
-            m_config.data.startPixel = evt.asInt();
-            m_coordMap = m_config.toCoordMap();
-            //Log.info("Offset is now %d", m_coordMap.startPixel);
-            break;
+        case InputEvent::LoadConfigurationByName:
+            Log.notice("Reloading configuration %s", evt.asString());
+            strcpy(m_config.data.loadedProfile, evt.asString());
+            loadProfile(evt.asString());
         case InputEvent::SaveConfigurationRequest:
-            //Log.info("Saving configuration");
+            Log.notice("Saving configuration");
             m_config.save();
             break;
         default: