commit f9ba6f7f83a7bc90b293ed9479287fcb3c39c56b
Author: Peter Hajas <peter@haj.as>
Date:   Tue Jul 19 21:59:19 2022 -0600

    initial commit

diff --git a/api.ino b/api.ino
new file mode 100644
index 0000000..ee9e45a
--- /dev/null
+++ b/api.ino
@@ -0,0 +1,49 @@
+#include <HTTPClient.h>
+#include <FirebaseJson.h>
+
+#define PLAYER_UPDATE_INTERVAL_MS (500)
+
+static unsigned long playerLastUpdateTime = 0;
+
+String httpURL(String path) {
+  return String(OWNTONE_SERVER_ADDRESS) + "/api/" + path;
+}
+
+String httpGET(String path) {
+  HTTPClient http;
+
+  Serial.println(httpURL(path));
+  
+  http.begin(httpURL(path));
+  http.GET();
+  String out = http.getString();
+  http.end();
+
+  return out;
+}
+
+void apiDebug(AppState *state) {
+  
+}
+
+void apiLoop(AppState *state) {
+  bool playerNeedsUpdate = (state->sinceBoot - playerLastUpdateTime) > PLAYER_UPDATE_INTERVAL_MS;
+  playerNeedsUpdate = playerNeedsUpdate || (playerLastUpdateTime > state->sinceBoot);
+  if (playerNeedsUpdate) {
+    String playerText = httpGET(String("player"));
+    FirebaseJson json;
+    json.setJsonData(playerText);
+    FirebaseJsonData result;
+    json.get(result, "volume");
+    Serial.println(result.type);
+    Serial.println(result.to<int>());
+
+    state->volume = result.to<int>();
+
+    playerLastUpdateTime = state->sinceBoot;
+  }
+}
+
+void apiSetup(AppState *state) {
+  
+}
diff --git a/ui.ino b/ui.ino
new file mode 100644
index 0000000..06cd758
--- /dev/null
+++ b/ui.ino
@@ -0,0 +1,47 @@
+#define LGFX_AUTODETECT;
+#define LGFX_USE_V1
+#include <LovyanGFX.hpp>
+
+#define UI_WIDTH (320)
+#define UI_HEIGHT (240)
+
+#define STATUS_BAR_HEIGHT (20)
+
+static LGFX lcd;
+static AppState lastAppState;
+
+void uiDebug(AppState *state) {
+  
+}
+
+void uiLoop(AppState *state) {
+  lcd.startWrite();
+
+  lcd.setTextColor(0x000000U, 0x00FF00);
+  
+  bool statusBarDirty = false;
+  statusBarDirty = state->wifiOnline != lastAppState.wifiOnline;
+  statusBarDirty = statusBarDirty || (state->volume != lastAppState.volume);
+  if (statusBarDirty) {
+    lcd.fillRect(0, 0, UI_WIDTH, STATUS_BAR_HEIGHT, 0x00FF00);
+    if (state->wifiOnline) {
+      lcd.drawString(state->wifiIP.toString(), 10, 10);
+      lcd.drawString(String(state->volume), UI_WIDTH - 20, 10);
+    }
+    else {
+      lcd.drawString("connecting...", 10, 10);
+    }
+  }
+
+  lastAppState = *state;
+      
+  lcd.endWrite();
+}
+
+void uiSetup(AppState *state) {
+  lcd.init();
+  lcd.fillScreen(0xFF0000);
+  lcd.setBrightness(128);
+
+  lastAppState = AppStateMake();
+}
diff --git a/wifi.ino b/wifi.ino
new file mode 100644
index 0000000..dcfe2eb
--- /dev/null
+++ b/wifi.ino
@@ -0,0 +1,28 @@
+#include "rpcWiFi.h"
+
+void wifiDebug(AppState *appState) {
+  Serial.printf("online: %d\n", appState->wifiOnline);
+  if (appState->wifiOnline) {
+    Serial.printf("IP: %s\n", WiFi.localIP().toString());
+  }
+}
+
+void wifiJoin(AppState *appState) {
+  WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  WiFi.begin(WIFI_SSID, WIFI_PASS);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.println("connecting...");
+    delay(5000);
+  }
+
+  appState->wifiOnline = true;
+  appState->wifiIP = WiFi.localIP();
+}
+
+void wifiLoop(AppState *appState) {
+  if (appState->wifiOnline) {
+    WiFi.localIP();
+  }
+}
diff --git a/wiowntone.ino b/wiowntone.ino
new file mode 100644
index 0000000..19ff0b9
--- /dev/null
+++ b/wiowntone.ino
@@ -0,0 +1,67 @@
+#include "rpcWiFi.h"
+
+#define DEBUG (false)
+
+const char *WIFI_SSID = "TortugaNoT";
+const char *WIFI_PASS = "april302021";
+const char *OWNTONE_SERVER_ADDRESS = "http://192.168.1.2:3689";
+
+typedef struct AppState {
+  unsigned long sinceBoot;
+  
+  bool  wifiOnline;
+  IPAddress wifiIP;
+
+  int volume; // out of 100;
+} AppState;
+
+AppState AppStateMake(void) {
+  AppState out;
+  out.sinceBoot = 0;
+  out.wifiOnline = false;
+  out.wifiIP = IPAddress();
+  out.volume = 0;
+  return out;
+}
+
+AppState state;
+
+void debug() {
+  wifiDebug(&state);
+  uiDebug(&state);
+  apiDebug(&state);
+}
+
+void handleInput() {
+  
+}
+ 
+void setup() {
+  state = AppStateMake();
+    
+  uiSetup(&state);
+  wifiJoin(&state);
+  apiSetup(&state);
+
+  // prepare buttons
+  pinMode(WIO_KEY_A, INPUT_PULLUP);
+  pinMode(WIO_KEY_B, INPUT_PULLUP);
+  pinMode(WIO_KEY_C, INPUT_PULLUP);
+  pinMode(WIO_5S_UP, INPUT_PULLUP);
+  pinMode(WIO_5S_DOWN, INPUT_PULLUP);
+  pinMode(WIO_5S_LEFT, INPUT_PULLUP);
+  pinMode(WIO_5S_RIGHT, INPUT_PULLUP);
+  pinMode(WIO_5S_PRESS, INPUT_PULLUP);
+}
+
+void loop() {
+  if (DEBUG) {
+    debug();
+  }
+  
+  state.sinceBoot = millis();
+  
+  uiLoop(&state);
+  wifiLoop(&state);
+  apiLoop(&state);
+}