feat: basic playback functionality

src/main.sh

@@ -75,6 +75,7 @@ if [ "${1:-}" = "--play-release" ]; then
   deco=${3}
   base="$(dirname "$deco")"
   echo "Playing release ($mbid) [$deco]" >>/tmp/foo
+  tmplist=$(mktemp)
   mb_release "$mbid" |
     $JQ -r --slurpfile deco "$deco" --arg base "$base" '$deco[].tracks as $filenames |
     .media[] |
@@ -93,15 +94,47 @@ if [ "${1:-}" = "--play-release" ]; then
       end
     ) |
     sort_by([.pos, .number]) |
-    map($base + "/" + .file)[]' >>/tmp/foo
+    map($base + "/" + .file)[]' >"$tmplist"
+  if [ "${4:-}" ]; then
+    mpv_play_list "$tmplist"
+  else
+    mpv_queue_list "$tmplist"
+  fi
+  rm -f "$tmplist"
   exit 0
 fi
 
 if [ "${1:-}" = "--play-recording" ]; then
   echo "Playing recording $2" >>/tmp/foo
+  mpv_play_file "$2"
+  if [ "${3:-}" ]; then
+    mpv_play_file "$2"
+  else
+    mpv_queue_file "$2"
+  fi
   exit 0
 fi
 
+if [ "${1:-}" = "--play-toggle" ]; then
+  mpv_toggle_pause
+fi
+
+if [ "${1:-}" = "--play-next" ]; then
+  mpv_next
+fi
+
+if [ "${1:-}" = "--play-previous" ]; then
+  mpv_prev
+fi
+
+if [ "${1:-}" = "--seek-forward" ]; then
+  mpv_seek_forward
+fi
+
+if [ "${1:-}" = "--seek-backward" ]; then
+  mpv_seek_backward
+fi
+
 if [ "${1:-}" = "--internal-preview-artist" ]; then
   __preview_artist "$2"
   exit 0
@@ -387,6 +420,9 @@ case "${1:-}" in
   ;;
 esac
 
+# Start mpv
+mpv_start
+
 while true; do
   case "${1:-}" in
   "--artist")
@@ -407,7 +443,7 @@ while true; do
           --with-nth="{1}" \
           --expect="ctrl-h,ctrl-a" \
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
-          --bind="load:unbind(enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l)\"" \
+          --bind="load:unbind(enter)+unbind(alt-enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l)\"" \
           --bind="ctrl-l:accept" \
           --bind="alt-b:execute-silent:xdg-open 'https://musicbrainz.org/release-group/{r2}' &" \
           --bind="alt-1:change-query(!$secsymb ),alt-2:change-query($secsymb )" \
@@ -442,7 +478,18 @@ while true; do
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
           --bind="load:transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
           --bind="enter:execute-silent:$0 --play-release {2} {3}" \
-          --bind="focus:transform:[ {3} ] && echo \"rebind:enter\" || echo \"unbind:enter\"" \
+          --bind="alt-enter:execute-silent:$0 --play-release {2} {3} q" \
+          --bind="space:execute-silent:$0 --play-toggle" \
+          --bind="ctrl-n:execute-silent:$0 --play-next" \
+          --bind="ctrl-p:execute-silent:$0 --play-previous" \
+          --bind="shift-right:execute-silent:$0 --seek-forward" \
+          --bind="shift-left:execute-silent:$0 --seek-backward" \
+          --bind="focus:transform:
+            [ {3} ] && c=rebind || c=unbind
+            for key in enter alt-enter space ctrl-n ctrl-p shift-right shift-left; do
+              printf \"+%s(%s)\" \"\$c\" \"\$key\"
+            done
+            " \
           --bind="ctrl-l:accept" \
           --bind="alt-b:execute-silent:xdg-open 'https://musicbrainz.org/release/{r2}' &" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up"
@@ -474,7 +521,18 @@ while true; do
           --expect="ctrl-h,ctrl-a" \
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
           --bind="enter:execute-silent:$0 --play-recording {3}" \
-          --bind="focus:transform:[ {3} ] && echo \"rebind:enter\" || echo \"unbind:enter\"" \
+          --bind="alt-enter:execute-silent:$0 --play-recording {3} q" \
+          --bind="space:execute-silent:$0 --play-toggle" \
+          --bind="ctrl-n:execute-silent:$0 --play-next" \
+          --bind="ctrl-p:execute-silent:$0 --play-previous" \
+          --bind="shift-right:execute-silent:$0 --seek-forward" \
+          --bind="shift-left:execute-silent:$0 --seek-backward" \
+          --bind="focus:transform:
+            [ {3} ] && c=rebind || c=unbind
+            for key in enter alt-enter space ctrl-n ctrl-p shift-right shift-left; do
+              printf \"+%s(%s)\" \"\$c\" \"\$key\"
+            done
+            " \
           --bind="alt-b:execute-silent:xdg-open 'https://musicbrainz.org/track/{r2}' &" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up"
     )
@@ -537,7 +595,7 @@ while true; do
           --expect="ctrl-/" \
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
           --bind="start:transform:[ \"${2:-}\" ] && echo \"change-query:${2:-}\"" \
-          --bind="load:unbind(enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
+          --bind="load:unbind(enter)+unbind(alt-enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
           --bind="ctrl-l:accept" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up" \
           --bind="alt-b:execute-silent:xdg-open 'https://musicbrainz.org/release-group/{r2}' &" \
@@ -575,7 +633,7 @@ while true; do
           --expect="ctrl-/" \
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
           --bind="start:transform:[ \"${2:-}\" ] && echo \"change-query:${2:-}\"" \
-          --bind="load:unbind(enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
+          --bind="load:unbind(enter)+unbind(alt-enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
           --bind="ctrl-l:accept" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up" \
           --bind="down:preview-half-page-down,up:preview-half-page-up" \
@@ -611,7 +669,18 @@ while true; do
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
           --bind="load:transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
           --bind="enter:execute-silent:$0 --play-release {2} {3}" \
-          --bind="focus:transform:[ {3} ] && echo \"rebind:enter\" || echo \"unbind:enter\"" \
+          --bind="alt-enter:execute-silent:$0 --play-release {2} {3} q" \
+          --bind="space:execute-silent:$0 --play-toggle" \
+          --bind="ctrl-n:execute-silent:$0 --play-next" \
+          --bind="ctrl-p:execute-silent:$0 --play-previous" \
+          --bind="shift-right:execute-silent:$0 --seek-forward" \
+          --bind="shift-left:execute-silent:$0 --seek-backward" \
+          --bind="focus:transform:
+            [ {3} ] && c=rebind || c=unbind
+            for key in enter alt-enter space ctrl-n ctrl-p shift-right shift-left; do
+              printf \"+%s(%s)\" \"\$c\" \"\$key\"
+            done
+            " \
           --bind="ctrl-l:accept" \
           --bind="alt-b:execute-silent:xdg-open 'https://musicbrainz.org/release/{r2}' &" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up" || true
@@ -646,7 +715,7 @@ while true; do
           --expect="ctrl-c,ctrl-q,tab" \
           --expect="ctrl-/" \
           --bind="alt-l:change-query($FORMAT_LOCAL )" \
-          --bind="load:unbind(enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
+          --bind="load:unbind(enter)+unbind(alt-enter)+transform:[ \"\$FZF_TOTAL_COUNT\" -gt 0 ] && echo \"rebind:ctrl-l\" || echo \"unbind:ctrl-l\"" \
           --bind="ctrl-l:accept" \
           --bind="ctrl-d:half-page-down,ctrl-u:half-page-up" \
           --bind="down:preview-half-page-down,up:preview-half-page-up" \

src/sh/api.sh

@@ -4,6 +4,79 @@ USER_AGENT="$APP_NAME/$APP_VERSION ($APP_WEBSITE)"
 SLEEP_ON_ERROR=1
 export MB_BROWSE_STEPS
 
+__mpv_command() {
+  echo "mpv_command: $*" >>/tmp/foo
+  printf "{ \"command\": [\"%s\"] }\n" "$1" | $SOCAT - "$MPV_SOCKET"
+}
+
+__mpv_command_with_arg() {
+  echo "mpv_command_1: $*" >>/tmp/foo
+  printf "{ \"command\": [\"%s\", \"%s\"] }\n" "$1" "$2" | $SOCAT - "$MPV_SOCKET"
+}
+
+__mpv_command_with_args2() {
+  echo "mpv_command_2: $*" >>/tmp/foo
+  printf "{ \"command\": [\"%s\", \"%s\", \"%s\"] }\n" "$1" "$2" "$3" | $SOCAT - "$MPV_SOCKET"
+}
+
+__mpv_get() {
+  __mpv_command_with_arg "expand-text" "$2" | $JQ -r '.data'
+}
+
+mpv_playlist_count() {
+  __mpv_get '${playlist/count}'
+}
+
+mpv_playlist_position() {
+  __mpv_get '${playlist-pos}'
+}
+
+mpv_quit() {
+  __mpv_command "quit"
+}
+
+mpv_start() {
+  MPV_SOCKET="$(mktemp --suffix=.sock)"
+  trap 'mpv_quit; rm -f "$MPV_SOCKET"' EXIT INT
+  $MPV --no-config --no-terminal --input-ipc-server="$MPV_SOCKET" --idle --no-osc --no-input-default-bindings &
+}
+
+mpv_play_file() {
+  __mpv_command_with_arg "loadfile" "$1"
+}
+
+mpv_queue_file() {
+  __mpv_command_with_args2 "loadfile" "$1" "append-play"
+}
+
+mpv_play_list() {
+  __mpv_command_with_arg "loadlist" "$1"
+}
+
+mpv_queue_list() {
+  __mpv_command_with_arg "loadlist" "$1" "append-play"
+}
+
+mpv_next() {
+  __mpv_command "playlist-next"
+}
+
+mpv_prev() {
+  __mpv_command "playlist-prev"
+}
+
+mpv_seek_forward() {
+  __mpv_command_with_arg "seek" "10"
+}
+
+mpv_seek_backward() {
+  __mpv_command_with_arg "seek" "-10"
+}
+
+mpv_toggle_pause() {
+  __mpv_command_with_arg "cycle" "pause"
+}
+
 __api_mb() {
   tmpout=$(mktemp)
   for _ in $(seq "$MB_MAX_RETRIES"); do

src/sh/tools.sh

@@ -21,3 +21,19 @@ else
   exit 1
 fi
 export JQ
+
+if command -v "mpv" >/dev/null; then
+  MPV="mpv"
+else
+  err "Did not find mpv."
+  exit 1
+fi
+export MPV
+
+if command -v "socat" >/dev/null; then
+  SOCAT="socat"
+else
+  err "Did not find socat."
+  exit 1
+fi
+export SOCAT