"""Send a SysEx ping to FL Studio and check if it arrives."""
import mido
import json
import sys
import time

print("=== FL Studio MCP — Send Ping Test ===")

# List ports
print(f"Inputs:  {mido.get_input_names()}")
print(f"Outputs: {mido.get_output_names()}")

# Open FL_MCP 1 output
out = mido.open_output("FL_MCP 1")
print("Opened FL_MCP 1 output")

# Encode ping command
payload = json.dumps({"cmd": "ping", "params": {"ts": 1}}).encode("utf-8")
nibbles = []
for b in payload:
    nibbles.append((b >> 4) & 0x0F)
    nibbles.append(b & 0x0F)

# mido adds F0/F7 automatically, we provide [SYSEX_ID + nibble data]
msg = mido.Message("sysex", data=bytes([0x7D] + nibbles))
hex_str = " ".join(f"{b:02X}" for b in msg.bytes())
print(f"Sending SysEx ({len(msg.bytes())} bytes): {hex_str}")
out.send(msg)
print("Sent! Check FL Studio script console for: [FL-MCP] Ping received")

# Also try a play command
time.sleep(0.5)
payload2 = json.dumps({"cmd": "start_playback", "params": {}}).encode("utf-8")
nibbles2 = []
for b in payload2:
    nibbles2.append((b >> 4) & 0x0F)
    nibbles2.append(b & 0x0F)
msg2 = mido.Message("sysex", data=bytes([0x7D] + nibbles2))
hex_str2 = " ".join(f"{b:02X}" for b in msg2.bytes())
print(f"\nSending PLAY SysEx ({len(msg2.bytes())} bytes): {hex_str2}")
out.send(msg2)
print("Sent! FL Studio should start playing if controller is loaded.")

time.sleep(0.5)
out.close()
print("\nDone. Check FL Studio console and transport state.")