Module: Igniter::Extensions::Contracts::CommercePack

Defined in:
lib/igniter/extensions/contracts/commerce_pack.rb

Class Method Summary collapse

Class Method Details

.grand_total_keyword ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 69

def grand_total_keyword
  Igniter::Contracts::DslKeyword.new(:grand_total) do |name = :grand_total, subtotal:, builder:, tax: nil, shipping: nil, discount: nil|
    dependency_names = [subtotal, tax, shipping, discount].compact.map(&:to_sym)

    builder.add_operation(
      kind: :compute,
      name: name,
      depends_on: dependency_names,
      callable: lambda do |**values|
        total = values.fetch(subtotal.to_sym)
        total += values.fetch(tax.to_sym) if tax
        total += values.fetch(shipping.to_sym) if shipping
        total -= values.fetch(discount.to_sym) if discount
        total
      end
    )
  end
end

.install_dsl_keywords(kernel) ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 26

def install_dsl_keywords(kernel)
  kernel.dsl_keywords.register(:order_items, order_items_keyword)
  kernel.dsl_keywords.register(:subtotal, subtotal_keyword)
  kernel.dsl_keywords.register(:tax_amount, tax_amount_keyword)
  kernel.dsl_keywords.register(:grand_total, grand_total_keyword)
end

.install_into(kernel) ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 21

def install_into(kernel)
  install_dsl_keywords(kernel)
  kernel
end

.manifest ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 8

def manifest
  Igniter::Contracts::PackManifest.new(
    name: :extensions_commerce,
    requires_packs: [LookupPack, AggregatePack],
    registry_contracts: [
      Igniter::Contracts::PackManifest.dsl_keyword(:order_items),
      Igniter::Contracts::PackManifest.dsl_keyword(:subtotal),
      Igniter::Contracts::PackManifest.dsl_keyword(:tax_amount),
      Igniter::Contracts::PackManifest.dsl_keyword(:grand_total)
    ]
  )
end

.order_items_keyword ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 33

def order_items_keyword
  Igniter::Contracts::DslKeyword.new(:order_items) do |name = :items, from:, builder:, key: :items|
    builder.profile.dsl_keyword(:lookup).call(
      name,
      from: from.to_sym,
      key: key.to_sym,
      builder: builder
    )
  end
end

.subtotal_keyword ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 44

def subtotal_keyword
  Igniter::Contracts::DslKeyword.new(:subtotal) do |name = :subtotal, from:, builder:, amount_key: :amount|
    builder.profile.dsl_keyword(:sum).call(
      name,
      from: from.to_sym,
      using: amount_key.to_sym,
      builder: builder
    )
  end
end

.tax_amount_keyword ⇒ Object 



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# File 'lib/igniter/extensions/contracts/commerce_pack.rb', line 55

def tax_amount_keyword
  Igniter::Contracts::DslKeyword.new(:tax_amount) do |name = :tax, amount:, rate:, builder:|
    dependencies = [amount.to_sym, rate.to_sym]
    builder.add_operation(
      kind: :compute,
      name: name,
      depends_on: dependencies,
      callable: lambda do |**values|
        values.fetch(amount.to_sym) * values.fetch(rate.to_sym)
      end
    )
  end
end