From bcf0f2b8cd0120a7ef50b22b28ef7c46fd96f125 Mon Sep 17 00:00:00 2001
From: XargonWan <XargonWan@gmail.com>
Date: Sun, 8 Sep 2024 12:22:41 +0900
Subject: [PATCH] FRAMEWORK: added the possibility to run a game from cli

---
 .../retrodeck/reference_lists/features.json   |  7 ++-
 functions/other_functions.sh                  | 52 +++++++++++++++++++
 retrodeck.sh                                  |  5 ++
 3 files changed, 63 insertions(+), 1 deletion(-)

diff --git a/config/retrodeck/reference_lists/features.json b/config/retrodeck/reference_lists/features.json
index 86a5b049..962f5adc 100644
--- a/config/retrodeck/reference_lists/features.json
+++ b/config/retrodeck/reference_lists/features.json
@@ -1061,6 +1061,7 @@
 		"url": "https://retrodeck.readthedocs.io/en/latest/wiki_about/what-is-retrodeck/",
 		"launch": "Yuzu",
 		"system": "switch",
+		"launch-args": "-f -g $game",
 		"ponzu": true,
 		"abxy_button": true
 	  },
@@ -1069,6 +1070,7 @@
 		"description": "Dolphin Wii and GameCube Emulator",
 		"url": "https://retrodeck.readthedocs.io/en/latest/wiki_emulator_guides/dolphin-primehack/dolphin-primehack-guide/",
 		"launch": "dolphin-emu-wrapper",
+		"launch-args": "-e $game",
 		"system": [
 		  "gc",
 		  "wii"
@@ -1088,6 +1090,7 @@
 		"description": "A fork of Dolphiin to enhance Metroid Prime experience",
 		"url": "https://retrodeck.readthedocs.io/en/latest/wiki_emulator_guides/dolphin-primehack/dolphin-primehack-guide/",
 		"launch": "primehack-wrapper",
+		"launch-args": "-e $game",
 		"system": [
 		  "wii"
 		],
@@ -1104,6 +1107,7 @@
 		"url": "https://retrodeck.readthedocs.io/en/latest/wiki_emulator_guides/cemu/cemu-guide/",
 		"system": "wiiu",
 		"launch": "Cemu-wrapper",
+		"launch-args": "-g $game",
 		"properties": [
 		  {
 			"abxy_button": true,
@@ -1116,7 +1120,8 @@
 		"name": "xemu",
 		"url": "https://retrodeck.readthedocs.io/en/latest/wiki_emulator_guides/xemu/xemu-guide/",
 		"system": "xbox",
-		"launch": "xemu"
+		"launch": "xemu",
+		"launch-args": "-dvd_path $game"
 	  },
 	  "es-de": {
 		"description": "ES-DE Emulation Frontend",
diff --git a/functions/other_functions.sh b/functions/other_functions.sh
index b6a833ee..81931318 100644
--- a/functions/other_functions.sh
+++ b/functions/other_functions.sh
@@ -891,3 +891,55 @@ start_retrodeck() {
   log i "Starting RetroDECK v$version"
   es-de
 }
+
+run_game() {
+  # Arguments: $1 -> game path, $2 -> optional system
+  local game="$1"
+  local system="$2"
+
+  # If no system is provided, extract it from the game path
+  if [[ -z "$system" ]]; then
+    system=$(echo "$game" | grep -oP '(?<=roms/)[^/]+')
+  fi
+
+  log d "Run game: running $(basename "$game") for $system system"
+
+  # Special case for retroarch
+  if [[ "$system" == "retroarch" ]]; then
+    log d "TODO: implement retroarch"
+    return
+  fi
+
+  # Query the features JSON for emulators that support the system
+  local emulators=$(jq -r --arg system "$system" '
+    .emulator | to_entries[] | 
+    select(
+      (.value.system == $system) or 
+      (.value.system[]? == $system)
+    ) | .key' "$features")
+
+  # Check if multiple emulators are found and prompt the user to select one with zenity
+  if [[ $(echo "$emulators" | wc -l) -gt 1 ]]; then
+    emulator=$(echo "$emulators" | zenity --list --title="Select Emulator" --text="Multiple emulators found for $system. Select one to run." --column="Emulator")
+  else
+    emulator="$emulators"
+  fi
+
+  # If no emulator was selected, exit
+  if [[ -z "$emulator" ]]; then
+    log e "No emulator selected. Exiting."
+    return 1
+  fi
+
+  log d "Run game: selected emulator $emulator"
+
+  # Parse emulator launch command and arguments from the JSON file
+  local launch_command=$(jq -r ".emulator.$emulator.launch" "$features")
+  local launch_args=$(jq -r ".emulator.$emulator.\"launch-args\"" "$features")
+
+  # Replace $game in launch_args with the actual game path, quoting it to handle spaces
+  launch_args=${launch_args//\$game/\"$game\"}
+
+  # Form and execute the command
+  eval "$launch_command $launch_args"
+}
diff --git a/retrodeck.sh b/retrodeck.sh
index c416de6c..47cacbe3 100644
--- a/retrodeck.sh
+++ b/retrodeck.sh
@@ -25,6 +25,7 @@ flatpak run [FLATPAK-RUN-OPTION] net.retrodeck-retrodeck [ARGUMENTS]
 Arguments:
     -h, --help                      Print this help
     -v, --version                   Print RetroDECK version
+    --run <path> (system)           Run a game from cli, if no system is defined it will deducted from the path. For example --run ~/retrodeck/roms/system/game.ext will be run with the system "system".
     --info-msg                      Print paths and config informations
     --configurator                  Starts the RetroDECK Configurator
     --compress-one <file>           Compresses target file to a compatible format
@@ -42,6 +43,10 @@ https://retrodeck.net
       echo "RetroDECK v$version"
       exit
       ;;
+    --run*)
+      run_game "$2" "$3"
+      exit
+      ;;
     --info-msg*)
       echo "RetroDECK v$version"
       echo "RetroDECK config file is in: $rd_conf"