Implement basic control flow

basic mpris control now works via supplied config.toml

.envrc

@@ -1 +1,2 @@
+export RUST_LOG=info
 use flake

Cargo.lock

@@ -2,21 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "addr2line"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
-dependencies = [
- "gimli",
-]
-
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
 [[package]]
 name = "aho-corasick"
 version = "1.1.2"
@@ -48,27 +33,60 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.6.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d96bd03f33fe50a863e394ee9718a706f988b9079b20c3784fb726e7678b62fb"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8901269c6307e8d93993578286ac0edf7f195079ffff5ebdeea6a59ffb7e36bc"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c75ac65da39e5fe5ab759307499ddad880d724eed2f6ce5b5e8a26f4f387928c"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e28923312444cdd728e4738b3f9c9cac739500909bb3d3c94b43551b16517648"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1cd54b81ec8d6180e24654d0b371ad22fc3dd083b6ff8ba325b72e00c87660a7"
+dependencies = [
+ "anstyle",
+ "windows-sys",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
-[[package]]
-name = "backtrace"
-version = "0.3.69"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
-dependencies = [
- "addr2line",
- "cc",
- "cfg-if",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
-]
-
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -81,27 +99,18 @@ version = "3.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
 
-[[package]]
-name = "bytes"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
-
-[[package]]
-name = "cc"
-version = "1.0.83"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+
 [[package]]
 name = "core-foundation"
 version = "0.9.3"
@@ -203,16 +212,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "delay_map"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4355c25cbf99edcb6b4a0e906f6bdc6956eda149e84455bea49696429b2f8e8"
-dependencies = [
- "futures",
- "tokio-util",
-]
-
 [[package]]
 name = "derive_is_enum_variant"
 version = "0.1.1"
@@ -241,6 +240,29 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "env_filter"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a009aa4810eb158359dda09d0c87378e4bbb89b5a801f016885a4707ba24f7ea"
+dependencies = [
+ "log",
+ "regex",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38b35839ba51819680ba087cd351788c9a3c476841207e0b8cee0b04722343b9"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "env_filter",
+ "humantime",
+ "log",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.1"
@@ -274,101 +296,6 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[package]]
-name = "futures"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40"
-dependencies = [
- "futures-channel",
- "futures-core",
- "futures-executor",
- "futures-io",
- "futures-sink",
- "futures-task",
- "futures-util",
-]
-
-[[package]]
-name = "futures-channel"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
-dependencies = [
- "futures-core",
- "futures-sink",
-]
-
-[[package]]
-name = "futures-core"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
-
-[[package]]
-name = "futures-executor"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0"
-dependencies = [
- "futures-core",
- "futures-task",
- "futures-util",
-]
-
-[[package]]
-name = "futures-io"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"
-
-[[package]]
-name = "futures-macro"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
-dependencies = [
- "proc-macro2",
- "quote 1.0.35",
- "syn 2.0.52",
-]
-
-[[package]]
-name = "futures-sink"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f43be4fe21a13b9781a69afa4985b0f6ee0e1afab2c6f454a8cf30e2b2237b6e"
-
-[[package]]
-name = "futures-task"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65"
-
-[[package]]
-name = "futures-util"
-version = "0.3.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"
-dependencies = [
- "futures-channel",
- "futures-core",
- "futures-io",
- "futures-macro",
- "futures-sink",
- "futures-task",
- "memchr",
- "pin-project-lite",
- "pin-utils",
- "slab",
-]
-
-[[package]]
-name = "gimli"
-version = "0.28.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0"
-
 [[package]]
 name = "hashbrown"
 version = "0.14.0"
@@ -384,6 +311,12 @@ dependencies = [
  "unicode-segmentation",
 ]
 
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -475,9 +408,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.20"
+version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
 
 [[package]]
 name = "memchr"
@@ -501,15 +434,6 @@ dependencies = [
  "windows",
 ]
 
-[[package]]
-name = "miniz_oxide"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
-dependencies = [
- "adler",
-]
-
 [[package]]
 name = "mpris"
 version = "2.0.1"
@@ -554,15 +478,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "object"
-version = "0.32.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77ac5bbd07aea88c60a577a1ce218075ffd59208b2d7ca97adf9bfc5aeb21ebe"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "once_cell"
 version = "1.18.0"
@@ -574,10 +489,11 @@ name = "pico_kontroller"
 version = "0.1.0"
 dependencies = [
  "crossbeam-channel",
- "delay_map",
+ "env_logger",
  "int-enum",
  "itertools",
  "libpulse-binding",
+ "log",
  "midir",
  "mpris",
  "regex",
@@ -585,18 +501,6 @@ dependencies = [
  "toml",
 ]
 
-[[package]]
-name = "pin-project-lite"
-version = "0.2.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
-
-[[package]]
-name = "pin-utils"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
-
 [[package]]
 name = "pkg-config"
 version = "0.3.27"
@@ -669,12 +573,6 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
-[[package]]
-name = "rustc-demangle"
-version = "0.1.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
-
 [[package]]
 name = "serde"
 version = "1.0.188"
@@ -704,15 +602,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "slab"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
-dependencies = [
- "autocfg",
-]
-
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -781,30 +670,6 @@ dependencies = [
  "syn 2.0.52",
 ]
 
-[[package]]
-name = "tokio"
-version = "1.32.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
-dependencies = [
- "backtrace",
- "pin-project-lite",
-]
-
-[[package]]
-name = "tokio-util"
-version = "0.7.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d"
-dependencies = [
- "bytes",
- "futures-core",
- "futures-sink",
- "pin-project-lite",
- "slab",
- "tokio",
-]
-
 [[package]]
 name = "toml"
 version = "0.7.6"
@@ -857,6 +722,12 @@ version = "0.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
 
+[[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -955,13 +826,37 @@ version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04662ed0e3e5630dfa9b26e4cb823b817f1a9addda855d973a9458c236556244"
 dependencies = [
- "windows_aarch64_gnullvm",
+ "windows_aarch64_gnullvm 0.42.2",
- "windows_aarch64_msvc",
+ "windows_aarch64_msvc 0.42.2",
- "windows_i686_gnu",
+ "windows_i686_gnu 0.42.2",
- "windows_i686_msvc",
+ "windows_i686_msvc 0.42.2",
- "windows_x86_64_gnu",
+ "windows_x86_64_gnu 0.42.2",
- "windows_x86_64_gnullvm",
+ "windows_x86_64_gnullvm 0.42.2",
- "windows_x86_64_msvc",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7dd37b7e5ab9018759f893a1952c9420d060016fc19a472b4bb20d1bdd694d1b"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.4",
+ "windows_aarch64_msvc 0.52.4",
+ "windows_i686_gnu 0.52.4",
+ "windows_i686_msvc 0.52.4",
+ "windows_x86_64_gnu 0.52.4",
+ "windows_x86_64_gnullvm 0.52.4",
+ "windows_x86_64_msvc 0.52.4",
 ]
 
 [[package]]
@@ -970,42 +865,84 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcf46cf4c365c6f2d1cc93ce535f2c8b244591df96ceee75d8e83deb70a9cac9"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da9f259dd3bcf6990b55bffd094c4f7235817ba4ceebde8e6d11cd0c5633b675"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b474d8268f99e0995f25b9f095bc7434632601028cf86590aea5c8a5cb7801d3"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1515e9a29e5bed743cb4415a9ecf5dfca648ce85ee42e15873c3cd8610ff8e02"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5eee091590e89cc02ad514ffe3ead9eb6b660aedca2183455434b93546371a03"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77ca79f2451b49fa9e2af39f0747fe999fcda4f5e241b2898624dca97a1f2177"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32b752e52a2da0ddfbdbcc6fceadfeede4c939ed16d13e648833a61dfb611ed8"
+
 [[package]]
 name = "winnow"
 version = "0.5.15"

Cargo.toml

@@ -5,10 +5,11 @@ edition = "2021"
 
 [dependencies]
 crossbeam-channel = "0.5.8"
-delay_map = "0.3.0"
+env_logger = "0.11.3"
 int-enum = "1.0.1"
 itertools = "0.11.0"
 libpulse-binding = "2.28.1"
+log = "0.4.21"
 midir = "0.9.1"
 mpris = "2.0.1"
 regex = "1.10.3"

src/config.rs

@@ -1,4 +1,5 @@
 use int_enum::IntEnum;
+use log::{error, info, warn};
 use serde::{Deserialize, Serialize};
 use std::path::Path;
 use std::process;
@@ -58,7 +59,7 @@ pub fn load(path: &str) -> Config {
     match cfg {
         Ok(expr) => expr,
         Err(expr) => {
-            eprintln!("Failed loading config at {path}: {expr}");
+            error!("Failed loading config at {path}: {expr}");
             process::exit(1);
         }
     }
@@ -71,7 +72,7 @@ pub fn write_default(path: &str) -> () {
             let _ = fs::write(path, &cfg_toml_text);
         }
         Err(expr) => {
-            eprintln!("Failed serializing default config: {expr}");
+            error!("Failed serializing default config: {expr}");
             process::exit(1);
         }
     }
@@ -85,7 +86,7 @@ pub enum MprisAction {
     Stop,
     Next,
     Previous,
-    VOLUME,
+    Volume,
 }
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -98,15 +99,20 @@ pub enum KeyMapVariant {
     PipeWire {
         ids: Vec<String>,
     },
+    Key {
+        keycode: u8, //TODO: add real keycodes
+    },
     Exec {
         command: String,
     },
 }
 
+pub type KeyMap = BTreeMap<NanoKeys, Vec<KeyMapVariant>>;
+
 #[derive(Debug, Serialize, Deserialize)]
 pub struct Config {
     pub general: General,
-    pub keymap: BTreeMap<NanoKeys, Vec<KeyMapVariant>>,
+    pub keymap: KeyMap,
 }
 
 #[derive(Debug, Serialize, Deserialize)]

src/controller.rs

@@ -0,0 +1,96 @@
+use crate::config::NanoKeys;
+use crate::config::{Config, KeyMapVariant, MprisAction};
+use crate::midi_client::KeyEvent;
+use crate::mpris_client;
+use crossbeam_channel::Receiver;
+use log::{error, info, warn};
+use std::sync::Arc;
+use std::thread;
+
+pub fn run(in_channel: Receiver<KeyEvent>, config: Arc<Config>) {
+    thread::spawn(move || {
+        exec(in_channel, config);
+    });
+}
+
+fn exec(in_channel: Receiver<KeyEvent>, config: Arc<Config>) {
+    loop {
+        let event_in = in_channel.recv();
+        match event_in {
+            Ok((key, state)) => {
+                eval(key, state, &config);
+            }
+            Err(err) => {
+                error!("Failed receiving event in controller thread: {err}");
+            }
+        }
+    }
+}
+
+fn eval(key: NanoKeys, state: u8, config: &Arc<Config>) {
+    match config.keymap.get(&key) {
+        Some(actions) => {
+            info!(
+                "Registered actions for [{:?} | {}]: {:?}",
+                key, state, actions
+            );
+            for action in actions {
+                match action {
+                    KeyMapVariant::Mpris { ids, action } => match action {
+                        MprisAction::Play => {
+                            if is_logical_true(state) {
+                                continue;
+                            }
+                            ids.iter().for_each(|id| mpris_client::play(id));
+                        }
+                        MprisAction::Pause => {
+                            if is_logical_true(state) {
+                                continue;
+                            }
+                            ids.iter().for_each(|id| mpris_client::pause(id));
+                        }
+                        MprisAction::PlayPause => {
+                            if is_logical_true(state) {
+                                continue;
+                            }
+                            ids.iter().for_each(|id| mpris_client::play_pause(id));
+                        }
+                        MprisAction::Stop => {
+                            if is_logical_true(state) {
+                                continue;
+                            }
+                            ids.iter().for_each(|id| mpris_client::stop(id));
+                        }
+                        MprisAction::Next => {
+                            if is_logical_true(state) {
+                                continue;
+                            }
+                            ids.iter().for_each(|id| mpris_client::next(id));
+                        }
+                        MprisAction::Previous => {
+                            if is_logical_true(state) {
+                                continue;
+                            }
+                            ids.iter().for_each(|id| mpris_client::previous(id));
+                        }
+                        MprisAction::Volume => {
+                            let volume = state as f64 / 100.0;
+                            ids.iter()
+                                .for_each(|id| mpris_client::set_volume(id, volume));
+                        }
+                    },
+                    KeyMapVariant::PipeWire { ids } => {}
+                    KeyMapVariant::Key { keycode } => {}
+                    KeyMapVariant::Exec { command } => {}
+                }
+            }
+        }
+        None => {
+            warn!("Midi input {:?} not mapped", key);
+        }
+    }
+}
+
+fn is_logical_true(state: u8) -> bool {
+    return state == 127;
+}

src/main.rs

@@ -1,9 +1,20 @@
-//use itertools::Itertools;
-//use mpris::{Player, PlayerFinder};
 mod config;
+mod controller;
 mod midi_client;
+mod mpris_client;
 mod pulse_client;
+use crossbeam_channel::unbounded;
+use std::sync::Arc;
 
 fn main() {
-    midi_client::run().unwrap();
+    env_logger::init();
+    let path: &str = "./config.toml";
+    let cfg: config::Config = config::init(path);
+    let arc_cfg = Arc::new(cfg);
+    // midi_client::list_ports();
+    // mpris_client::list_clients();
+
+    let (sender, receiver) = unbounded::<midi_client::KeyEvent>();
+    controller::run(receiver, Arc::clone(&arc_cfg));
+    midi_client::run(&arc_cfg.general.midi_device, sender).unwrap();
 }

src/midi_client.rs

@@ -1,7 +1,9 @@
 use crate::config::NanoKeys;
+use crossbeam_channel::Sender;
 use midir::{Ignore, MidiInput};
 use regex::Regex;
 use std::error::Error;
+use std::time;
 
 pub fn list_ports() -> () {
     let midi_in = MidiInput::new("PicoKontroller").expect("Creating Midi device failed");
@@ -12,7 +14,7 @@ pub fn list_ports() -> () {
     }
 }
 
-pub fn run(port_name: &str) -> Result<(), Box<dyn Error>> {
+pub fn run(port_name: &str, out_channel: Sender<KeyEvent>) -> Result<(), Box<dyn Error>> {
     let port_filter = Regex::new(port_name).expect("Creating RegEx failed");
 
     let mut midi_in = MidiInput::new("PicoKontroller").expect("Creating Midi device failed");
@@ -29,16 +31,17 @@ pub fn run(port_name: &str) -> Result<(), Box<dyn Error>> {
         in_port,
         "PicoController Input",
         move |_, message, _| {
-            let key = message[1];
+            let key = NanoKeys::try_from(message[1]).unwrap();
-            let volume = message[2] as f64 / 127.0;
+            let state = message[2];
-            println!(
+            let _ = out_channel.send((key, state));
-                "Key: {:?} | State: {:.2}",
-                NanoKeys::try_from(key).unwrap(),
-                volume
-            );
         },
         (),
     )?;
-
+    loop {
-    loop {}
+        // sleep forever, callback functions happen on separate thread
+        // couldn't reuse this thread, since _conn_in needs to be alive in this scope
+        std::thread::sleep(time::Duration::from_secs(u64::MAX));
+    }
 }
+
+pub type KeyEvent = (NanoKeys, u8);

src/mpris_client.rs

@@ -1,13 +1,85 @@
+use mpris::Player;
 use mpris::PlayerFinder;
+use regex::Regex;
 
-pub fn set_volume(player_id: &str, volume: f64) {
+pub fn list_clients() -> () {
     PlayerFinder::new()
         .expect("Could not connect to D-Bus")
         .find_all()
         .unwrap_or_else(|_| Vec::new())
         .into_iter()
-        .filter(|player| player.identity() == player_id)
         .for_each(|player| {
+            println!("{}", player.identity());
+        });
+}
+
+fn for_all_players<F>(player_id: &str, function: F)
+where
+    F: Fn(&Player) -> (),
+{
+    let player_filter = Regex::new(player_id).expect("Creating RegEx failed");
+    PlayerFinder::new()
+        .expect("Could not connect to D-Bus")
+        .find_all()
+        .unwrap_or_else(|_| Vec::new())
+        .into_iter()
+        .filter(|player| player_filter.is_match(player.identity()))
+        .into_iter()
+        .for_each(|player| {
+            function(&player);
+        });
+}
+
+fn for_active_player<F>(function: F)
+where
+    F: Fn(&Player) -> (),
+{
+    let player = PlayerFinder::new()
+        .expect("Could not connect to D-Bus")
+        .find_active()
+        .expect("Could not find any player");
+
+    function(&player);
+}
+
+pub fn play(player_id: &str) -> () {
+    for_all_players(player_id, |player| {
+        let _ = player.play();
+    });
+}
+
+pub fn pause(player_id: &str) -> () {
+    for_all_players(player_id, |player| {
+        let _ = player.pause();
+    });
+}
+
+pub fn play_pause(player_id: &str) -> () {
+    for_all_players(player_id, |player| {
+        let _ = player.play_pause();
+    });
+}
+
+pub fn stop(player_id: &str) -> () {
+    for_all_players(player_id, |player| {
+        let _ = player.stop();
+    });
+}
+
+pub fn next(player_id: &str) -> () {
+    for_all_players(player_id, |player| {
+        let _ = player.next();
+    });
+}
+
+pub fn previous(player_id: &str) -> () {
+    for_all_players(player_id, |player| {
+        let _ = player.previous();
+    });
+}
+
+pub fn set_volume(player_id: &str, volume: f64) -> () {
+    for_all_players(player_id, |player| {
         let _ = player.set_volume(volume);
     });
 }