Class: Lluminary::SchemaModel

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Validations
Defined in:
lib/lluminary/schema_model.rb

Overview

Base class for models that use JSON schema validation. Provides ActiveModel integration and schema validation.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ SchemaModel

Returns a new instance of SchemaModel.



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# File 'lib/lluminary/schema_model.rb', line 13

def initialize(attributes = {})
  @attributes = attributes.transform_keys(&:to_s)
end

Instance Attribute Details

#attributes ⇒ Object (readonly)

Returns the value of attribute attributes.



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# File 'lib/lluminary/schema_model.rb', line 10

def attributes
  @attributes
end

#task_instance ⇒ Object

Returns the value of attribute task_instance.



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# File 'lib/lluminary/schema_model.rb', line 11

def task_instance
  @task_instance
end

Class Method Details

.build(fields:, validations:, custom_validations: []) ⇒ Object 



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# File 'lib/lluminary/schema_model.rb', line 23

def self.build(fields:, validations:, custom_validations: [])
  Class.new(self) do
    class << self
      attr_accessor :schema_fields, :custom_validation_methods
    end

    self.schema_fields = fields
    self.custom_validation_methods = custom_validations

    # Add accessors for each field
    fields.each_key do |name|
      define_method(name) { @attributes[name.to_s] }
      define_method("#{name}=") { |value| @attributes[name.to_s] = value }
    end

    # Add raw_response field and validation
    define_method(:raw_response) { @attributes["raw_response"] }
    define_method("raw_response=") do |value|
      @attributes["raw_response"] = value
    end

    # Add custom validation hook
    validate do |record|
      # Run custom validations from the task if present
      if record.task_instance &&
           !record.class.custom_validation_methods.empty?
        record.class.custom_validation_methods.each do |validation|
          method_name = validation[:method]
          if record.task_instance.respond_to?(method_name)
            record.task_instance.send(method_name)
          end
        end
      end

      if record.raw_response
        begin
          JSON.parse(record.raw_response)
        rescue JSON::ParserError
          record.errors.add(:raw_response, "must be valid JSON")
        end
      end

      record.attributes.each do |name, value|
        next if name == "raw_response"
        next if value.nil?

        field = self.class.schema_fields[name.to_sym]
        next unless field

        case field[:type]
        when :hash
          validate_hash_field(record, name, value, field)
        when :array
          validate_array_field(record, name, value, field[:element_type])
        when :dictionary
          validate_dictionary_field(record, name, value, field[:value_type])
        when :string
          unless value.is_a?(String)
            record.errors.add(name.to_s.capitalize, "must be a String")
          end
        when :integer
          unless value.is_a?(Integer)
            record.errors.add(name.to_s.capitalize, "must be an Integer")
          end
        when :boolean
          unless [true, false].include?(value)
            record.errors.add(name.to_s.capitalize, "must be true or false")
          end
        when :float
          unless value.is_a?(Float)
            record.errors.add(name.to_s.capitalize, "must be a float")
          end
        when :datetime
          unless value.is_a?(DateTime)
            record.errors.add(name.to_s.capitalize, "must be a DateTime")
          end
        end
      end
    end

    # Add ActiveModel validations
    validations.each { |args, options| validates(*args, **options) }

    # Set model name for error messages
    define_singleton_method(:model_name) do
      ActiveModel::Name.new(self, nil, "SchemaModel")
    end

    private

    def validate_dictionary_field(
      record,
      name,
      value,
      value_type,
      path = nil
    )
      field_name = path || name

      unless value.is_a?(Hash)
        record.errors.add(field_name, "must be a Hash")
        return
      end

      value.each do |key, val|
        current_path = "#{field_name}[#{key}]"

        case value_type[:type]
        when :string
          unless val.is_a?(String)
            record.errors.add(current_path, "must be a String")
          end
        when :integer
          unless val.is_a?(Integer)
            record.errors.add(current_path, "must be an Integer")
          end
        when :boolean
          unless [true, false].include?(val)
            record.errors.add(current_path, "must be true or false")
          end
        when :float
          unless val.is_a?(Float)
            record.errors.add(current_path, "must be a float")
          end
        when :datetime
          unless val.is_a?(DateTime)
            record.errors.add(current_path, "must be a DateTime")
          end
        when :hash
          validate_hash_field(
            record,
            current_path,
            val,
            value_type,
            current_path
          )
        when :array
          validate_array_field(
            record,
            current_path,
            val,
            value_type[:element_type],
            current_path
          )
        when :dictionary
          validate_dictionary_field(
            record,
            current_path,
            val,
            value_type[:value_type],
            current_path
          )
        end
      end
    end

    def validate_hash_field(
      record,
      name,
      value,
      field_definition,
      path = nil
    )
      field_name = path || name

      unless value.is_a?(Hash)
        record.errors.add(field_name, "must be a Hash")
        return
      end

      field_definition[:fields].each do |key, field|
        current_path = path ? "#{path}[#{key}]" : "#{field_name}[#{key}]"
        # Try both string and symbol keys
        field_value = value[key.to_s] || value[key.to_sym]

        next if field_value.nil?

        case field[:type]
        when :hash
          validate_hash_field(record, key, field_value, field, current_path)
        when :array
          validate_array_field(
            record,
            key,
            field_value,
            field[:element_type],
            current_path
          )
        when :dictionary
          validate_dictionary_field(
            record,
            key,
            field_value,
            field[:value_type],
            current_path
          )
        when :string
          unless field_value.is_a?(String)
            record.errors.add(current_path, "must be a String")
          end
        when :integer
          unless field_value.is_a?(Integer)
            record.errors.add(current_path, "must be an Integer")
          end
        when :boolean
          unless [true, false].include?(field_value)
            record.errors.add(current_path, "must be true or false")
          end
        when :float
          unless field_value.is_a?(Float)
            record.errors.add(current_path, "must be a float")
          end
        when :datetime
          unless field_value.is_a?(DateTime)
            record.errors.add(current_path, "must be a DateTime")
          end
        end
      end
    end

    def validate_array_field(record, name, value, element_type, path = nil)
      field_name = path || name

      unless value.is_a?(Array)
        record.errors.add(field_name, "must be an Array")
        return
      end

      return unless element_type # untyped array

      value.each_with_index do |element, index|
        current_path = "#{field_name}[#{index}]"

        case element_type[:type]
        when :hash
          validate_hash_field(
            record,
            name,
            element,
            element_type,
            current_path
          )
        when :array
          validate_array_field(
            record,
            name,
            element,
            element_type[:element_type],
            current_path
          )
        when :dictionary
          validate_dictionary_field(
            record,
            name,
            element,
            element_type[:value_type],
            current_path
          )
        when :string
          unless element.is_a?(String)
            record.errors.add(current_path, "must be a String")
          end
        when :integer
          unless element.is_a?(Integer)
            record.errors.add(current_path, "must be an Integer")
          end
        when :boolean
          unless [true, false].include?(element)
            record.errors.add(current_path, "must be true or false")
          end
        when :float
          unless element.is_a?(Float)
            record.errors.add(current_path, "must be a float")
          end
        when :datetime
          unless element.is_a?(DateTime)
            record.errors.add(current_path, "must be a DateTime")
          end
        end
      end
    end
  end
end

Instance Method Details

#to_s ⇒ Object 



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# File 'lib/lluminary/schema_model.rb', line 17

def to_s
  attrs = attributes.dup
  attrs.delete("raw_response")
  "#<#{self.class.name} #{attrs.inspect}>"
end