Initial websocket connection

Added tokio and async-tungstenite to handle the websocket connection,
send authentication and enter waiting state.

Cargo.lock

@@ -32,6 +32,22 @@ version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4361135be9122e0870de935d7c439aef945b9f9ddd4199a553b5270b49c82a27"
 
+[[package]]
+name = "async-tungstenite"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7922abeade7dd8948c20dfa1f85dc48cc952d2e0791f7c42b8b1cbb07a57129d"
+dependencies = [
+ "futures-io",
+ "futures-util",
+ "log",
+ "pin-project-lite",
+ "rustls-native-certs",
+ "tokio",
+ "tokio-rustls",
+ "tungstenite",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -76,12 +92,27 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "block-buffer"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bf7fe51849ea569fd452f37822f606a5cabb684dc918707a0193fd4664ff324"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f1e260c3a9040a7c19a12468758f4c16f31a81a1fe087482be9570ec864bb6c"
 
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
 [[package]]
 name = "bytes"
 version = "1.1.0"
@@ -174,6 +205,35 @@ version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
 
+[[package]]
+name = "cpufeatures"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59a6001667ab124aebae2a495118e11d30984c3a653e99d86d58971708cf5e4b"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57952ca27b5e3606ff4dd79b0020231aaf9d6aa76dc05fd30137538c50bd3ce8"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2fb860ca6fafa5552fb6d0e816a69c8e49f0908bf524e30a90d97c85892d506"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.29"
@@ -225,46 +285,87 @@ dependencies = [
 ]
 
 [[package]]
-name = "futures-channel"
+name = "futures"
-version = "0.3.18"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fc8cd39e3dbf865f7340dce6a2d401d24fd37c6fe6c4f0ee0de8bfca2252d27"
+checksum = "f73fe65f54d1e12b726f517d3e2135ca3125a437b6d998caf1962961f7172d9e"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
 name = "futures-core"
-version = "0.3.18"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "629316e42fe7c2a0b9a65b47d159ceaa5453ab14e8f0a3c5eedbb8cd55b4a445"
+checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
 
 [[package]]
 name = "futures-io"
-version = "0.3.18"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e481354db6b5c353246ccf6a728b0c5511d752c08da7260546fc0933869daa11"
+checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
 
 [[package]]
 name = "futures-sink"
-version = "0.3.18"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "996c6442437b62d21a32cd9906f9c41e7dc1e19a9579843fad948696769305af"
+checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
 
 [[package]]
 name = "futures-task"
-version = "0.3.18"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dabf1872aaab32c886832f2276d2f5399887e2bd613698a02359e4ea83f8de12"
+checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
 
 [[package]]
 name = "futures-util"
-version = "0.3.18"
+version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d22213122356472061ac0f1ab2cee28d2bac8491410fd68c2af53d1cedb83e"
+checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
 dependencies = [
+ "futures-channel",
  "futures-core",
  "futures-io",
+ "futures-macro",
+ "futures-sink",
  "futures-task",
  "memchr",
  "pin-project-lite",
@@ -272,6 +373,16 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.14.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd48d33ec7f05fbfa152300fdad764757cbded343c1aa1cff2fbaf4134851803"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.3"
@@ -280,7 +391,7 @@ checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi",
+ "wasi 0.10.2+wasi-snapshot-preview1",
 ]
 
 [[package]]
@@ -313,14 +424,19 @@ name = "ha-now-playing"
 version = "0.3.2"
 dependencies = [
  "anyhow",
+ "async-tungstenite",
  "clap",
  "color-eyre",
+ "futures",
  "html-escape",
  "reqwest",
  "serde",
  "serde_json",
+ "tokio",
  "tracing",
+ "tracing-error",
  "tracing-subscriber",
+ "tracing-tree",
 ]
 
 [[package]]
@@ -486,9 +602,18 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.108"
+version = "0.2.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8521a1b57e76b1ec69af7599e75e38e7b7fad6610f037db8c79b127201b5d119"
+checksum = "efaa7b300f3b5fe8eb6bf21ce3895e1751d9665086af2d64b42f19701015ff4f"
+
+[[package]]
+name = "lock_api"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88943dd7ef4a2e5a4bfa2753aaab3013e34ce2533d1996fb18ef591e315e2b3b"
+dependencies = [
+ "scopeguard",
+]
 
 [[package]]
 name = "log"
@@ -538,14 +663,15 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.7.14"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8067b404fe97c70829f082dec8bcf4f71225d7eaea1d8645349cb76fa06205cc"
+checksum = "52da4364ffb0e4fe33a9841a98a3f3014fb964045ce4f7a45a398243c8d6b0c9"
 dependencies = [
  "libc",
  "log",
  "miow",
  "ntapi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
  "winapi",
 ]
 
@@ -658,6 +784,29 @@ version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "20448fd678ec04e6ea15bbe0476874af65e98a01515d667aa49f1434dc44ebf4"
 
+[[package]]
+name = "parking_lot"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87f5ec2493a61ac0506c0f4199f99070cbe83857b0337006a30f3e6719b8ef58"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28141e0cc4143da2443301914478dc976a61ffdb3f043058310c70df2fed8954"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-sys",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -848,12 +997,60 @@ dependencies = [
  "winreg",
 ]
 
+[[package]]
+name = "ring"
+version = "0.16.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3053cf52e236a3ed746dfc745aa9cacf1b791d846bdaf412f60a8d7d6e17c8fc"
+dependencies = [
+ "cc",
+ "libc",
+ "once_cell",
+ "spin",
+ "untrusted",
+ "web-sys",
+ "winapi",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
 
+[[package]]
+name = "rustls"
+version = "0.20.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fbfeb8d0ddb84706bc597a5574ab8912817c52a397f819e5b614e2265206921"
+dependencies = [
+ "log",
+ "ring",
+ "sct",
+ "webpki",
+]
+
+[[package]]
+name = "rustls-native-certs"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca9ebdfa27d3fc180e42879037b5338ab1c040c06affd00d8338598e7800943"
+dependencies = [
+ "openssl-probe",
+ "rustls-pemfile",
+ "schannel",
+ "security-framework",
+]
+
+[[package]]
+name = "rustls-pemfile"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5eebeaeb360c87bfb72e84abdb3447159c0eaececf1bef2aecd65a8be949d1c9"
+dependencies = [
+ "base64",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.5"
@@ -870,6 +1067,22 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+
+[[package]]
+name = "sct"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d53dcdb7c9f8158937a7981b48accfd39a43af418591a5d008c7b22b5e1b7ca4"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
 [[package]]
 name = "security-framework"
 version = "2.4.2"
@@ -936,6 +1149,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "sha-1"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "028f48d513f9678cda28f6e4064755b3fbb2af6acd672f2c209b62323f7aea0f"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
 name = "sharded-slab"
 version = "0.1.4"
@@ -945,6 +1169,15 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.5"
@@ -959,14 +1192,20 @@ checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "socket2"
-version = "0.4.2"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dc90fe6c7be1a323296982db1836d1ea9e47b6839496dde9a541bc496df3516"
+checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
 dependencies = [
  "libc",
  "winapi",
 ]
 
+[[package]]
+name = "spin"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -1016,6 +1255,26 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.4"
@@ -1042,20 +1301,35 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.14.0"
+version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e992e41e0d2fb9f755b37446f20900f64446ef54874f40a60c78f021ac6144"
+checksum = "2af73ac49756f3f7c01172e34a23e5d0216f6c32333757c2c61feb2bbff5a5ee"
 dependencies = [
- "autocfg",
  "bytes",
  "libc",
  "memchr",
  "mio",
  "num_cpus",
+ "once_cell",
+ "parking_lot",
  "pin-project-lite",
+ "signal-hook-registry",
+ "socket2",
+ "tokio-macros",
  "winapi",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tokio-native-tls"
 version = "0.3.0"
@@ -1066,6 +1340,17 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-rustls"
+version = "0.23.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4151fda0cf2798550ad0b34bcfc9b9dcc2a9d2471c895c68f3a8818e54f2389e"
+dependencies = [
+ "rustls",
+ "tokio",
+ "webpki",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.6.9"
@@ -1158,12 +1443,52 @@ dependencies = [
  "tracing-log",
 ]
 
+[[package]]
+name = "tracing-tree"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ce989c9962c7f61fe084dd4a230eec784649dfc2392467c790007c3a6e134e7"
+dependencies = [
+ "ansi_term",
+ "atty",
+ "tracing-core",
+ "tracing-log",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
 
+[[package]]
+name = "tungstenite"
+version = "0.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d96a2dea40e7570482f28eb57afbe42d97551905da6a9400acc5c328d24004f5"
+dependencies = [
+ "base64",
+ "byteorder",
+ "bytes",
+ "http",
+ "httparse",
+ "log",
+ "rand",
+ "rustls",
+ "sha-1",
+ "thiserror",
+ "url",
+ "utf-8",
+ "webpki",
+]
+
+[[package]]
+name = "typenum"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
+
 [[package]]
 name = "unicase"
 version = "2.6.0"
@@ -1200,6 +1525,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
+[[package]]
+name = "untrusted"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a156c684c91ea7d62626509bce3cb4e1d9ed5c4d978f7b4352658f96a4c26b4a"
+
 [[package]]
 name = "url"
 version = "2.2.2"
@@ -1212,6 +1543,12 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "utf-8"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
+
 [[package]]
 name = "utf8-width"
 version = "0.1.5"
@@ -1252,6 +1589,12 @@ version = "0.10.2+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.78"
@@ -1328,6 +1671,16 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "webpki"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f095d78192e208183081cc07bc5515ef55216397af48b873e5edcd72637fa1bd"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1359,6 +1712,49 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3df6e476185f92a12c072be4a189a0210dcdcf512a1891d6dff9edb874deadc6"
+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8e92753b1c443191654ec532f14c199742964a061be25d77d7a96f09db20bf5"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a711c68811799e017b6038e0922cb27a5e2f43a2ddb609fe0b6f3eeda9de615"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "146c11bb1a02615db74680b32a68e2d61f553cc24c4eb5b4ca10311740e44172"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c912b12f7454c6620635bbff3450962753834be2a594819bd5e945af18ec64bc"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "504a2476202769977a040c6364301a3f65d0cc9e3fb08600b2bda150a0488316"
+
 [[package]]
 name = "winreg"
 version = "0.10.1"

Cargo.toml

@@ -7,14 +7,19 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.56"
+async-tungstenite = { version = "0.17.1", features = ["tokio-rustls-native-certs"] }
 clap = { version = "3.1.6", features = ["cargo", "unicode", "derive", "env"] }
 color-eyre = "0.6.1"
+futures = "0.3.21"
 html-escape = "0.2.11"
 reqwest = { version = "0.11.10", features = ["blocking", "json"] }
 serde = { version = "1.0.136", features = ["derive"] }
 serde_json = "1.0.79"
+tokio = { version = "1.17.0", features = ["full"] }
 tracing = "0.1.32"
-tracing-subscriber = { version = "0.3.9", features = ["env-filter"] }
+tracing-error = "0.2.0"
+tracing-subscriber = { version = "0.3.9", features = ["env-filter", "registry"] }
+tracing-tree = "0.2.0"
 
 [profile.release]
 opt-level = "z"

src/homeassistant.rs

@@ -0,0 +1,114 @@
+use async_tungstenite::{tokio::connect_async, tungstenite};
+use color_eyre::{eyre::eyre, Result};
+use futures::{SinkExt, StreamExt};
+use serde::{Deserialize, Serialize};
+use tracing::debug;
+
+pub(crate) struct HomeAssistant {
+    token: String,
+    entity: String,
+    insecure: bool,
+    host: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+struct Message {
+    #[serde(rename = "type")]
+    message_type: MessageType,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    ha_version: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    access_token: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    message: Option<String>,
+}
+
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+enum MessageType {
+    AuthRequired,
+    Auth,
+    AuthOk,
+    AuthInvalid,
+    Result,
+    SubscribeEvents,
+    Event,
+    SubscribeTrigger,
+    UnsubscribeEvents,
+    FireEvent,
+    CallService,
+    GetStates,
+    GetConfig,
+    GetServices,
+    GetPanels,
+    CameraThumbnail,
+    MediaPlayerThumbnail,
+    Ping,
+    Pong,
+    ValidateConfig,
+}
+
+impl Default for Message {
+    fn default() -> Self {
+        Self {
+            message_type: MessageType::Pong,
+            ha_version: Default::default(),
+            access_token: Default::default(),
+            message: Default::default(),
+        }
+    }
+}
+
+impl HomeAssistant {
+    pub(crate) fn new(host: String, entity: String, insecure: bool, token: String) -> Self {
+        Self {
+            token,
+            entity,
+            insecure,
+            host,
+        }
+    }
+
+    pub(crate) async fn open_connection(self) -> Result<()> {
+        let api_url = format!(
+            "{}://{}/api/websocket",
+            if self.insecure { "ws" } else { "wss" },
+            self.host
+        );
+
+        debug!("Connecting to URL {api_url}");
+
+        let (mut ws_stream, _) = connect_async(&api_url).await?;
+
+        while let Some(msg) = ws_stream.next().await {
+            let msg = msg?;
+            if let Ok(response) = self.handle_message(msg).await {
+                ws_stream.send(response).await?;
+            }
+        }
+
+        Err(eyre!(
+            "TODO: Connect to {} and subscribe to {}",
+            api_url,
+            self.entity
+        ))
+    }
+
+    async fn handle_message(&self, msg: tungstenite::Message) -> Result<tungstenite::Message> {
+        let message: Message = serde_json::from_slice(&msg.into_data()).unwrap();
+        debug!("Received: {message:?}");
+
+        let response = match message.message_type {
+            MessageType::AuthRequired => {
+                debug!("Sending Authentication Data");
+                let mut auth = Message::default();
+                auth.message_type = MessageType::Auth;
+                auth.access_token = Some(self.token.clone());
+
+                async_tungstenite::tungstenite::Message::text(serde_json::to_string(&auth).unwrap())
+            }
+            _ => return Err(eyre!("TODO: Handle {:?}", message.message_type)),
+        };
+        Ok(response)
+    }
+}

src/main.rs

@@ -6,7 +6,11 @@ use color_eyre::{eyre::WrapErr, Result};
 use serde_json::json;
 use std::fmt::Display;
 use tracing::{debug, trace};
-use tracing_subscriber::EnvFilter;
+use tracing_error::ErrorLayer;
+use tracing_subscriber::{prelude::*, EnvFilter, Registry};
+use tracing_tree::HierarchicalLayer;
+
+mod homeassistant;
 
 /// Bert
 #[derive(Parser, Debug)]
@@ -62,7 +66,8 @@ impl Display for Command {
     }
 }
 
-fn main() -> Result<()> {
+#[tokio::main]
+async fn main() -> Result<()> {
     let opts = Opts::parse();
 
     let Opts {
@@ -99,8 +104,10 @@ fn main() -> Result<()> {
                 .wrap_err_with(|| format!("Unable to execute command {cmd}"))?;
         } else {
             debug!("Retrieving state of '{entity}' on '{host}'");
-            get_now_playing(host, entity, insecure, token)
+            // get_now_playing(host, entity, insecure, token)
-                .wrap_err("Unable to retrieve now playing info")?;
+            //     .wrap_err("Unable to retrieve now playing info")?;
+            let ha = homeassistant::HomeAssistant::new(host, entity, insecure, token);
+            ha.open_connection().await.unwrap();
         }
     }
     Ok(())
@@ -112,13 +119,19 @@ fn setup(debug: bool) -> Result<()> {
     }
     color_eyre::install()?;
 
-    tracing_subscriber::fmt::fmt()
+    Registry::default()
-        .with_env_filter(EnvFilter::from_default_env())
+        .with(EnvFilter::from_default_env())
-        .with_writer(std::io::stderr)
+        .with(
+            HierarchicalLayer::new(2)
+                .with_targets(true)
+                .with_bracketed_fields(true),
+        )
+        .with(ErrorLayer::default())
         .init();
     Ok(())
 }
 
+#[tracing::instrument]
 fn get_now_playing(host: String, entity: String, insecure: bool, token: String) -> Result<()> {
     let url = format!(
         "{}://{}/api/states/{}",
@@ -174,6 +187,7 @@ fn get_now_playing(host: String, entity: String, insecure: bool, token: String)
     Ok(())
 }
 
+#[tracing::instrument]
 fn call_service(
     command: Command,
     host: String,