From: Jonathan McDowell Date: Wed, 7 Jun 2023 18:25:57 +0000 (+0100) Subject: Initial commit X-Git-Tag: v0.1.0~2 X-Git-Url: https://the.earth.li/gitweb/?a=commitdiff_plain;h=a75b0288c2bf70086a030b5f0f7d63de1271aab9;p=mqttdeck.git Initial commit --- a75b0288c2bf70086a030b5f0f7d63de1271aab9 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ea8c4bf --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +/target diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. 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100644 index 0000000..95ae7b0 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,140 @@ +// +// mqttdeck, a program to connect an Elgato Stream Deck to an MQTT server +// +// Copyright 2023 Jonathan McDowell + +use clap::Parser; +use elgato_streamdeck as streamdeck; +use ini::Ini; +use paho_mqtt as mqtt; +use std::process; +use std::time::Duration; + +#[derive(Parser)] +struct Args { + #[arg(short, long, default_value_t = String::from("/etc/mqttdeck.ini"))] + config: String, + + #[arg(short, long, default_value_t = false)] + verbose: bool, +} + +fn main() { + let args = Args::parse(); + let conf = Ini::load_from_file(&args.config).unwrap_or_else(|err| { + println!("Failed to load config file ({}): {}", args.config, err); + process::exit(1); + }); + let host = format!("mqtts://{}:8883", &conf["MQTT"]["broker"]); + + let hid = streamdeck::new_hidapi().unwrap_or_else(|err| { + println!("Failed to create HID API context: {}", err); + process::exit(1); + }); + let mut decks = streamdeck::list_devices(&hid); + + if decks.len() == 0 { + println!("Failed to find Stream Deck device"); + process::exit(1); + } + + let (kind, serial) = decks.remove(0); + + let deck = streamdeck::StreamDeck::connect(&hid, kind, &serial).unwrap_or_else(|err| { + println!("Failed to connect to Stream Deck: {}", err); + process::exit(1); + }); + + println!( + "Connected to '{:?}' ('{}') with version '{}'", + kind, + deck.serial_number().unwrap(), + deck.firmware_version().unwrap() + ); + + if args.verbose { + println!("Connecting to the MQTT server"); + } + + let cli = mqtt::AsyncClient::new(host).unwrap_or_else(|err| { + println!("Error creating the MQTT client: {}", err); + process::exit(1); + }); + + let ssl_opts = mqtt::SslOptionsBuilder::new() + .finalize(); + + let lwt_topic = format!("{}/LWT", &conf["MQTT"]["prefix"]); + + let lwt_msg = mqtt::MessageBuilder::new() + .topic(&lwt_topic) + .payload("Offline") + .qos(0) + .retained(true) + .finalize(); + + let conn_opts = mqtt::ConnectOptionsBuilder::new() + .ssl_options(ssl_opts) + .user_name(&conf["MQTT"]["username"]) + .password(&conf["MQTT"]["password"]) + .will_message(lwt_msg) + .finalize(); + + if let Err(err) = cli.connect(conn_opts).wait() { + println!("Unable to connect to MQTT server: {}", err); + process::exit(1); + } + + let msg = mqtt::MessageBuilder::new() + .topic(lwt_topic) + .payload("Online") + .qos(0) + .retained(true) + .finalize(); + + if let Err(e) = cli.publish(msg).wait() { + println!("Error sending LWT present message: {:?}", e); + } + + let mut keystates = vec![false; kind.key_count() as usize]; + let quit = false; + + while !quit { + let input = deck.read_input(Some(Duration::new(5, 0))).unwrap(); + + if !input.is_empty() { + match input { + streamdeck::StreamDeckInput::ButtonStateChange(keys) => { + for key in 0..keys.len() { + if keys[key] != keystates[key] { + + if args.verbose { + println!("Button state change, key {} pressed -> {}", key, keys[key]); + } + + let msg = mqtt::MessageBuilder::new() + .topic(format!("{}/button{}", &conf["MQTT"]["prefix"], key)) + .payload(if keys[key] { "ON" } else { "OFF"} ) + .qos(1) + .finalize(); + + if let Err(e) = cli.publish(msg).wait() { + println!("Error sending key state update message: {:?}", e); + } + + keystates[key] = keys[key]; + } + } + }, + _ => { + if args.verbose { + println!("Unexpected Stream Deck event: {:?}", input); + } + }, + } + } + } + + let tok = cli.disconnect(None); + tok.wait().unwrap(); +}