{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://fl-control/schemas/reascript-protocol.json",
  "title": "ReaScript Protocol",
  "description": "Command/result protocol for ReaScript two-way JSON communication",
  "definitions": {
    "ReaScriptCommand": {
      "title": "ReaScriptCommand",
      "description": "Command sent to the ReaScript via fl_control_command.json",
      "type": "object",
      "properties": {
        "version": {
          "type": "integer",
          "description": "Protocol version",
          "default": 1
        },
        "action": {
          "description": "Single action name or pipeline list. Known values: add_plugins, configure_fx_params, verify_fx, calibrate, render",
          "default": "calibrate",
          "oneOf": [
            { "type": "string" },
            {
              "type": "array",
              "items": { "type": "string" }
            }
          ]
        },
        "rpp_path": {
          "type": "string",
          "description": "Path to .rpp file to open",
          "default": ""
        },
        "render_path": {
          "type": "string",
          "description": "Path for rendered WAV output",
          "default": ""
        },
        "timeout": {
          "type": "integer",
          "description": "Polling timeout in seconds",
          "default": 120
        },
        "track_calibration": {
          "type": "array",
          "description": "Per-track volume/pan/send calibration",
          "default": [],
          "items": {
            "type": "object",
            "properties": {
              "track_index": { "type": "integer" },
              "volume": { "type": "number" },
              "pan": { "type": "number" },
              "sends": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "dest_track_index": { "type": "integer" },
                    "level": { "type": "number" }
                  }
                }
              }
            }
          }
        },
        "plugins_to_add": {
          "type": "array",
          "description": "Each dict: {\"track_name\": str, \"fx_name\": str, \"params\": {\"0\": float, ...}}",
          "default": [],
          "items": {
            "type": "object",
            "properties": {
              "track_name": { "type": "string" },
              "fx_name": { "type": "string" },
              "params": {
                "type": "object",
                "additionalProperties": { "type": "number" }
              }
            },
            "required": ["track_name", "fx_name"]
          }
        }
      }
    },
    "ReaScriptResult": {
      "title": "ReaScriptResult",
      "description": "Result written by the ReaScript to fl_control_result.json",
      "type": "object",
      "properties": {
        "version": {
          "type": "integer",
          "description": "Protocol version",
          "default": 1
        },
        "status": {
          "type": "string",
          "description": "ok | error | timeout",
          "default": "ok",
          "enum": ["ok", "error", "timeout"]
        },
        "message": {
          "type": "string",
          "description": "Error or status message",
          "default": ""
        },
        "lufs": {
          "type": ["number", "null"],
          "description": "Integrated LUFS",
          "default": null
        },
        "integrated_lufs": {
          "type": ["number", "null"],
          "description": "Integrated LUFS reading",
          "default": null
        },
        "short_term_lufs": {
          "type": ["number", "null"],
          "description": "Short-term LUFS",
          "default": null
        },
        "fx_errors": {
          "type": "array",
          "description": "FX verification errors. Each dict: {\"track_index\": int, \"fx_index\": int, \"name\": str, \"expected\": str}",
          "default": [],
          "items": {
            "type": "object",
            "properties": {
              "track_index": { "type": "integer" },
              "fx_index": { "type": "integer" },
              "name": { "type": "string" },
              "expected": { "type": "string" }
            }
          }
        },
        "tracks_verified": {
          "type": "integer",
          "description": "Number of tracks verified",
          "default": 0
        },
        "added_plugins": {
          "type": "array",
          "description": "Each dict: {\"fx_name\": str, \"instance_id\": int, \"track_name\": str, \"status\": str}",
          "default": [],
          "items": {
            "type": "object",
            "properties": {
              "fx_name": { "type": "string" },
              "instance_id": { "type": "integer" },
              "track_name": { "type": "string" },
              "status": { "type": "string" }
            },
            "required": ["fx_name", "track_name", "status"]
          }
        }
      }
    }
  }
}