From c149453415fccb510261ec3e3fc296d6948a79aa Mon Sep 17 00:00:00 2001
From: sreekara <sreedansd@gmail.com>
Date: Sun, 30 Jun 2024 16:43:58 -0400
Subject: [PATCH] feat(input): added ability to recognize physical button
 presses

---
 src/main.rs | 67 ++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 58 insertions(+), 9 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 899bc67..d9e784d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,13 @@
 use dotenv::dotenv;
 use embedded_hal::delay::DelayNs;
 use embedded_svc::http::{client::Client, Headers, Status};
-use esp_idf_hal::{delay::Delay, io::Read, peripherals::Peripherals, sys::esp_crt_bundle_attach};
+use esp_idf_hal::{
+    delay::{Delay, FreeRtos},
+    gpio::{IOPin, PinDriver},
+    io::Read,
+    peripherals::Peripherals,
+    sys::esp_crt_bundle_attach,
+};
 use esp_idf_svc::{
     eventloop::EspSystemEventLoop,
     http::client::{Configuration as HttpConfig, EspHttpConnection},
@@ -15,6 +21,12 @@ use std::{
     time::Duration,
 };
 
+#[derive(PartialEq, Eq)]
+enum ButtonStatus {
+    Low,
+    High,
+}
+
 fn main() {
     esp_idf_svc::sys::link_patches();
     esp_idf_svc::log::EspLogger::initialize_default();
@@ -24,7 +36,17 @@ fn main() {
     let sys_loop = EspSystemEventLoop::take().unwrap();
     let nvs = EspDefaultNvsPartition::take().unwrap();
 
-    // let mut wifi_driver = EspWifi::new(peripherals.modem, sys_loop, Some(nvs)).unwrap();
+    let mut btn1_status = ButtonStatus::High;
+    let mut btn2_status = ButtonStatus::High;
+    let mut btn3_status = ButtonStatus::High;
+    let mut btn_pin1 = PinDriver::input(peripherals.pins.gpio5.downgrade()).unwrap();
+    let mut btn_pin2 = PinDriver::input(peripherals.pins.gpio1.downgrade()).unwrap();
+    let mut btn_pin3 = PinDriver::input(peripherals.pins.gpio17.downgrade()).unwrap();
+    btn_pin1.set_pull(esp_idf_hal::gpio::Pull::Up).unwrap();
+    btn_pin2.set_pull(esp_idf_hal::gpio::Pull::Up).unwrap();
+    btn_pin3.set_pull(esp_idf_hal::gpio::Pull::Up).unwrap();
+    let mut btn_lock = false;
+
     let mut wifi_driver = BlockingWifi::wrap(
         EspWifi::new(peripherals.modem, sys_loop.clone(), Some(nvs)).unwrap(),
         sys_loop,
@@ -33,7 +55,7 @@ fn main() {
 
     wifi(&mut wifi_driver);
 
-    let check_playback = thread::spawn(|| {
+    let check_playback = thread::Builder::new().stack_size(64 * 1024).spawn(|| {
         loop {
             let httpconnection = EspHttpConnection::new(&HttpConfig {
                 // use_global_ca_store: true,
@@ -43,9 +65,8 @@ fn main() {
             .expect("Could not establish http connection");
 
             let mut httpclient = Client::wrap(httpconnection);
-            let url_root = include_str!("../api_url.txt");
-            // let formatted_url = std::format!("{}/current_playback", url_root);
-            let formatted_url = "http://23.20.233.1:8080/current_playback";
+            let url_root = include_str!("../api_url.txt").replace("\n", "");
+            let formatted_url = std::format!("{}/current_playback", url_root);
 
             let request = httpclient
                 .get(&formatted_url)
@@ -68,15 +89,43 @@ fn main() {
                 continue;
             }
 
-            println!("{:?}", response_str);
-            println!("{:#?}", playing_json);
+            // println!("{:?}", response_str);
+            // println!("{:#?}", playing_json);
 
             Delay::new_default().delay_ms(1000);
         }
     });
 
     loop {
-        Delay::new_default().delay_ms(1);
+        if btn_pin1.is_high() && btn1_status == ButtonStatus::Low {
+            println!("Button 1 Pressed");
+            // Using a button lock to make sure register one button input at a time
+            btn_lock = false;
+            btn1_status = ButtonStatus::High;
+        } else if btn_pin1.is_low() && !btn_lock {
+            btn_lock = true;
+            btn1_status = ButtonStatus::Low;
+        }
+
+        if btn_pin2.is_high() && btn2_status == ButtonStatus::Low {
+            println!("Button 2 Pressed");
+            btn_lock = false;
+            btn2_status = ButtonStatus::High;
+        } else if btn_pin2.is_low() && !btn_lock {
+            btn_lock = true;
+            btn2_status = ButtonStatus::Low;
+        }
+
+        if btn_pin3.is_high() && btn3_status == ButtonStatus::Low {
+            println!("Button 3 Pressed");
+            btn_lock = false;
+            btn3_status = ButtonStatus::High;
+        } else if btn_pin3.is_low() && !btn_lock {
+            btn_lock = true;
+            btn3_status = ButtonStatus::Low;
+        }
+
+        thread::sleep(Duration::from_millis(100));
     }
 }