{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "AI Ball Resource Pack Schema",
  "description": "Initial schema for AI球 resource packs used by devices and the PC host application.",
  "type": "object",
  "additionalProperties": false,
  "required": ["pack_id", "version", "resources"],
  "properties": {
    "pack_id": {
      "type": "string",
      "minLength": 1
    },
    "version": {
      "type": "string",
      "minLength": 1
    },
    "target_firmware": {
      "type": "string",
      "description": "Optional compatible firmware version or range."
    },
    "description": {
      "type": "string"
    },
    "resources": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": ["id", "type", "path"],
        "properties": {
          "id": {
            "type": "string",
            "minLength": 1
          },
          "type": {
            "type": "string",
            "enum": ["audio", "image", "animation", "light_preset", "expression", "other"]
          },
          "path": {
            "type": "string",
            "minLength": 1
          },
          "sha256": {
            "type": "string",
            "pattern": "^[A-Fa-f0-9]{64}$"
          },
          "size_bytes": {
            "type": "integer",
            "minimum": 0
          }
        }
      }
    }
  }
}