Update docs for RPC client

documentation/builders/cli-client.md

@@ -1,21 +1,102 @@
-# CLI Client
+# RPC CLI Client
 
-The CLI (command line interface) client can be used to send [RPC commands](./rpc-commands.md) from command line to Phoniebox.
+The Python CLI (Command Line Interface) client can be used to send [RPC commands](./rpc-commands.md) to Phoniebox. It provides an interactive shell with autocompletion and command history, as well as direct command execution.
 
-## Installation
+The RPC tool can be found here:
 
-* Install prerequisites: `sudo apt-get install libczmq-dev`
-* Change to directory: `cd ~/RPi-Jukebox-RFID/src/cli_client`
-* Compile CLI client: `gcc pbc.c -o pbc -lzmq -Wall`
+```bash
+~/RPi-Jukebox-RFID/src/jukebox/run_rpc_tool.py
+```
 
 ## Usage
 
-* Get help info: `./pbc -h`
-* Example shutdown: `./pbc -p host -o shutdown`
+The CLI tool can be used in two modes:
 
-See also [RPC Commands](./rpc-commands.md) reference.
+### Interactive Mode
 
-## Reference
+```bash
+# Start interactive shell
+./run_rpc_tool.py
 
-* <https://zeromq.org/>
-* <https://www.jsonrpc.org/specification>
+# Start with specific connection type
+./run_rpc_tool.py --tcp 5555     # TCP connection on port 5555
+./run_rpc_tool.py --websocket    # WebSocket connection on default port
+```
+
+In interactive mode:
+
+- Use TAB for command autocompletion
+- Use UP/DOWN arrows for command history
+- Type `help` to see available commands
+- Type `usage` for detailed usage information
+- Press Ctrl-D or type `exit` to quit
+
+### Direct Command Mode
+
+```bash
+# Execute single command
+./run_rpc_tool.py -c 'command [args...] [key=value...]'
+
+# Examples with positional args:
+./run_rpc_tool.py -c 'volume.ctrl.set_volume 50'
+./run_rpc_tool.py -c 'player.ctrl.play_content "/music/test.mp3" single'
+
+# Examples with kwargs:
+./run_rpc_tool.py -c 'volume.ctrl.set_volume level=50'
+./run_rpc_tool.py -c 'player.ctrl.play_content content="/music/test.mp3" content_type=single'
+```
+
+## Command Format
+
+Commands support both positional arguments and keyword arguments:
+
+```python
+package.plugin.method [arg1] [arg2] [arg3]          # Positional args
+package.plugin.method [key1=value1] [key2=value2]   # Keyword args
+```
+
+Arguments can be:
+
+- Numbers (50 or level=50)
+- Strings (use quotes for spaces: "my string" or path="my string")
+- JSON objects (use single quotes: '{"key":"value"}')
+- Hexadecimal numbers (prefix with 0x: 0xFF or value=0xFF)
+
+### Examples
+
+```bash
+# Simple commands - both styles work
+volume.ctrl.set_volume 50
+volume.ctrl.set_volume level=50
+
+system.ctrl.shutdown
+
+# Playing content - positional args
+player.ctrl.play_content '{"artist":"Pink Floyd","album":"The Wall"}' album
+player.ctrl.play_content "/music/classical" folder true
+player.ctrl.play_content "/music/track.mp3" single
+
+# Playing content - keyword args
+player.ctrl.play_content content='{"artist":"Pink Floyd","album":"The Wall"}' content_type=album
+player.ctrl.play_content content="/music/classical" content_type=folder recursive=true
+player.ctrl.play_content content="/music/track.mp3" content_type=single
+
+# Reader-based playback - positional args
+player.ctrl.play_from_reader '{"artist":"Pink Floyd","album":"The Wall"}' album false toggle
+player.ctrl.play_from_reader "/music/classical" folder true replay
+
+# Reader-based playback - keyword args
+player.ctrl.play_from_reader content='{"artist":"Pink Floyd","album":"The Wall"}' content_type=album second_swipe=toggle
+player.ctrl.play_from_reader content="/music/classical" content_type=folder recursive=true second_swipe=replay
+```
+
+## Features
+
+- Command autocompletion
+- Command history
+- Support for both positional and keyword arguments
+- JSON argument support
+- Interactive and direct command modes
+- Automatic type conversion (strings, numbers, JSON)
+- Connection error handling
+- Dynamic command help from server