{
  "$schema": "https://metabuilder.dev/schemas/validation.schema.json",
  "schemaVersion": "2.0.0",
  "package": "form_builder",
  "description": "Validation patterns and functions for form fields",
  "patterns": {
    "email": "^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$",
    "password": "^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d).{8,}$",
    "url": "^https?:\\/\\/(www\\.)?[-a-zA-Z0-9@:%._\\+~#=]{1,256}\\.[a-zA-Z0-9()]{1,6}\\b([-a-zA-Z0-9()@:%_\\+.~#?&//=]*)$",
    "phone": "^[\\+]?[(]?[0-9]{3}[)]?[-\\s\\.]?[0-9]{3}[-\\s\\.]?[0-9]{4,6}$",
    "zipCode": "^[0-9]{5}(?:-[0-9]{4})?$",
    "username": "^[a-zA-Z0-9_-]{3,16}$"
  },
  "functions": [
    {
      "id": "validate_email",
      "name": "validateEmail",
      "description": "Validate email address format",
      "params": [
        {
          "name": "email",
          "type": "string",
          "required": true
        }
      ],
      "returnType": "boolean",
      "async": false,
      "pattern": "email",
      "errorMessage": "Please enter a valid email address"
    },
    {
      "id": "validate_password",
      "name": "validatePassword",
      "description": "Validate password strength (min 8 chars, uppercase, lowercase, number)",
      "params": [
        {
          "name": "password",
          "type": "string",
          "required": true
        }
      ],
      "returnType": "boolean",
      "async": false,
      "pattern": "password",
      "errorMessage": "Password must be at least 8 characters and contain uppercase, lowercase, and numbers"
    },
    {
      "id": "validate_required",
      "name": "validateRequired",
      "description": "Check if field has a value",
      "params": [
        {
          "name": "value",
          "type": "any",
          "required": true
        }
      ],
      "returnType": "boolean",
      "async": false,
      "errorMessage": "This field is required"
    },
    {
      "id": "validate_min_length",
      "name": "validateMinLength",
      "description": "Check minimum string length",
      "params": [
        {
          "name": "value",
          "type": "string",
          "required": true
        },
        {
          "name": "minLength",
          "type": "number",
          "required": true
        }
      ],
      "returnType": "boolean",
      "async": false,
      "errorMessage": "Must be at least ${minLength} characters"
    },
    {
      "id": "validate_max_length",
      "name": "validateMaxLength",
      "description": "Check maximum string length",
      "params": [
        {
          "name": "value",
          "type": "string",
          "required": true
        },
        {
          "name": "maxLength",
          "type": "number",
          "required": true
        }
      ],
      "returnType": "boolean",
      "async": false,
      "errorMessage": "Must be no more than ${maxLength} characters"
    },
    {
      "id": "validate_url",
      "name": "validateURL",
      "description": "Validate URL format",
      "params": [
        {
          "name": "url",
          "type": "string",
          "required": true
        }
      ],
      "returnType": "boolean",
      "async": false,
      "pattern": "url",
      "errorMessage": "Please enter a valid URL"
    }
  ],
  "exports": {
    "patterns": ["email", "password", "url", "phone", "zipCode", "username"],
    "functions": ["validateEmail", "validatePassword", "validateRequired", "validateMinLength", "validateMaxLength", "validateURL"]
  }
}