wip

src/mpv/control.gleam

@@ -1,8 +1,10 @@
 import gleam/dynamic/decode
+import gleam/float
 import gleam/json
 import gleam/result
+import gleam/string
 
-import mpv/key.{type Key}
+import mpv/key.{type Key, Char}
 import tcp/reason.{type Reason}
 import tcp/tcp.{type Socket}
 
@@ -17,7 +19,7 @@ pub type ControlError {
 
 pub fn from_key(key: Key) -> Result(Control, Nil) {
   case key {
-    key.Char(char) -> char_control(char)
+    Char(char) -> char_control(char)
     _ -> Error(Nil)
   }
 }
@@ -30,20 +32,22 @@ fn char_control(char: String) -> Result(Control, Nil) {
   }
 }
 
-pub fn toggle_play_pause(socket: Socket) -> Result(Nil, Reason) {
+pub fn toggle_play_pause(socket: Socket) -> Result(Nil, ControlError) {
   let command =
     json.object([#("command", json.array(["cycle", "pause"], of: json.string))])
 
-  result.map(send_command(socket, command), fn(_) { Nil })
+  case send_command(socket, command) {
+    Error(r) -> Error(ControlError(reason.to_string(r)))
+    Ok(_) -> Ok(Nil)
+  }
 }
 
-// {\"data\":\"12.945425\",\"request_id\":0,\"error\":\"success\"}\n
 // https://mpv.io/manual/master/#command-interface-playback-time
 pub type PlaybackTime {
-  PlaybackTime(data: Int, error: String)
+  PlaybackTime(data: Float)
 }
 
-pub fn get_playback_time(socket: Socket) -> Result(String, ControlError) {
+pub fn get_playback_time(socket: Socket) -> Result(PlaybackTime, ControlError) {
   let command =
     json.object([
       #(
@@ -52,17 +56,34 @@ pub fn get_playback_time(socket: Socket) -> Result(String, ControlError) {
       ),
     ])
 
-  result.map(send_command(socket, command), fn(json_string: String) {
-    let decoder = {
-      use data <- decode.field("data", decode.int)
-      use error <- decode.field("error", decode.string)
-      decode.success(PlaybackTime(data:, error:))
-    }
+  case send_command(socket, command) {
+    Error(r) -> Error(ControlError(reason.to_string(r)))
+    Ok(json_string) -> parse_playback_time(json_string)
+  }
+}
 
-    result.map_error(json.parse(from: json_string, using: decoder), fn(r) {
-      todo
-    })
-  })
+fn parse_playback_time(
+  json_string: String,
+) -> Result(PlaybackTime, ControlError) {
+  let decoder = {
+    let float_dececoder = fn(data_string) {
+      case float.parse(data_string) {
+        Error(_) -> decode.failure(0.0, "data")
+        Ok(float_value) -> decode.success(float_value)
+      }
+    }
+    use data <- decode.field(
+      "data",
+      decode.then(decode.string, float_dececoder),
+    )
+
+    decode.success(PlaybackTime(data))
+  }
+
+  result.map_error(
+    json.parse(from: string.trim(json_string), using: decoder),
+    fn(r) { ControlError(string.inspect(r)) },
+  )
 }
 
 fn send_command(socket: Socket, command: json.Json) -> Result(String, Reason) {

src/mpv/internal/control.gleam

@@ -0,0 +1,23 @@
+// fn parse_playback_time(
+//   json_string: String,
+// ) -> Result(PlaybackTime, ControlError) {
+//   let decoder = {
+//     let float_dececoder = fn(data_string) {
+//       case float.parse(data_string) {
+//         Error(_) -> decode.failure(0.0, "data")
+//         Ok(float_value) -> decode.success(float_value)
+//       }
+//     }
+//     use data <- decode.field(
+//       "data",
+//       decode.then(decode.string, float_dececoder),
+//     )
+
+//     decode.success(PlaybackTime(data))
+//   }
+
+//   result.map_error(
+//     json.parse(from: string.trim(json_string), using: decoder),
+//     fn(r) { ControlError(string.inspect(r)) },
+//   )
+// }

src/mpv/mpv.gleam

@@ -1,4 +1,5 @@
 import gleam/erlang/process.{type Subject}
+import gleam/float
 import gleam/otp/actor
 import gleam/result
 import gleam/string
@@ -44,14 +45,17 @@ fn handle_message(
   case control {
     control.TogglePlayPause -> {
       echo "toggling play/pause"
+
       let _ =
-        result.map_error(control.toggle_play_pause(state.socket), fn(r) {
-          echo "Could not toggle play/pause: " <> reason.to_string(r)
+        result.map_error(control.toggle_play_pause(state.socket), fn(err) {
+          echo "Could not toggle play/pause: " <> err.details
         })
+
       let _ =
         result.map(control.get_playback_time(state.socket), fn(playback) {
-          echo "playback: " <> playback
+          echo "playback: " <> float.to_string(playback.data)
         })
+
       actor.continue(state)
     }
     control.Exit -> {

test/mpv/control_test.gleam

@@ -0,0 +1,30 @@
+import gleam/list
+import gleeunit
+
+import mpv/control.{type Control}
+import mpv/key.{type Key, Char}
+
+pub fn main() -> Nil {
+  gleeunit.main()
+}
+
+type TestCase {
+  TestCase(key: Key, expected: Result(Control, Nil))
+}
+
+pub fn control_from_key_test() {
+  let test_cases = [
+    TestCase(Char(" "), Ok(control.TogglePlayPause)),
+    TestCase(Char("q"), Ok(control.Exit)),
+  ]
+
+  list.each(test_cases, fn(tc) {
+    assert tc.expected == control.from_key(tc.key)
+  })
+}
+// pub fn parse_playback_time_test() {
+//   let json_string =
+//     "{\"data\":\"123.456789\",\"request_id\":0,\"error\":\"success\"}\n"
+
+//   let assert Ok(_) = control.parse_p
+// }