{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Amazonka.AppSync.Types.Resolver
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
module Amazonka.AppSync.Types.Resolver where

import Amazonka.AppSync.Types.AppSyncRuntime
import Amazonka.AppSync.Types.CachingConfig
import Amazonka.AppSync.Types.PipelineConfig
import Amazonka.AppSync.Types.ResolverKind
import Amazonka.AppSync.Types.SyncConfig
import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import qualified Amazonka.Prelude as Prelude

-- | Describes a resolver.
--
-- /See:/ 'newResolver' smart constructor.
data Resolver = Resolver'
  { -- | The caching configuration for the resolver.
    cachingConfig :: Prelude.Maybe CachingConfig,
    -- | The @resolver@ code that contains the request and response functions.
    -- When code is used, the @runtime@ is required. The @runtime@ value must
    -- be @APPSYNC_JS@.
    code :: Prelude.Maybe Prelude.Text,
    -- | The resolver data source name.
    dataSourceName :: Prelude.Maybe Prelude.Text,
    -- | The resolver field name.
    fieldName :: Prelude.Maybe Prelude.Text,
    -- | The resolver type.
    --
    -- -   __UNIT__: A UNIT resolver type. A UNIT resolver is the default
    --     resolver type. You can use a UNIT resolver to run a GraphQL query
    --     against a single data source.
    --
    -- -   __PIPELINE__: A PIPELINE resolver type. You can use a PIPELINE
    --     resolver to invoke a series of @Function@ objects in a serial
    --     manner. You can use a pipeline resolver to run a GraphQL query
    --     against multiple data sources.
    kind :: Prelude.Maybe ResolverKind,
    -- | The maximum batching size for a resolver.
    maxBatchSize :: Prelude.Maybe Prelude.Natural,
    -- | The @PipelineConfig@.
    pipelineConfig :: Prelude.Maybe PipelineConfig,
    -- | The request mapping template.
    requestMappingTemplate :: Prelude.Maybe Prelude.Text,
    -- | The resolver Amazon Resource Name (ARN).
    resolverArn :: Prelude.Maybe Prelude.Text,
    -- | The response mapping template.
    responseMappingTemplate :: Prelude.Maybe Prelude.Text,
    runtime :: Prelude.Maybe AppSyncRuntime,
    -- | The @SyncConfig@ for a resolver attached to a versioned data source.
    syncConfig :: Prelude.Maybe SyncConfig,
    -- | The resolver type name.
    typeName :: Prelude.Maybe Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'Resolver' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'cachingConfig', 'resolver_cachingConfig' - The caching configuration for the resolver.
--
-- 'code', 'resolver_code' - The @resolver@ code that contains the request and response functions.
-- When code is used, the @runtime@ is required. The @runtime@ value must
-- be @APPSYNC_JS@.
--
-- 'dataSourceName', 'resolver_dataSourceName' - The resolver data source name.
--
-- 'fieldName', 'resolver_fieldName' - The resolver field name.
--
-- 'kind', 'resolver_kind' - The resolver type.
--
-- -   __UNIT__: A UNIT resolver type. A UNIT resolver is the default
--     resolver type. You can use a UNIT resolver to run a GraphQL query
--     against a single data source.
--
-- -   __PIPELINE__: A PIPELINE resolver type. You can use a PIPELINE
--     resolver to invoke a series of @Function@ objects in a serial
--     manner. You can use a pipeline resolver to run a GraphQL query
--     against multiple data sources.
--
-- 'maxBatchSize', 'resolver_maxBatchSize' - The maximum batching size for a resolver.
--
-- 'pipelineConfig', 'resolver_pipelineConfig' - The @PipelineConfig@.
--
-- 'requestMappingTemplate', 'resolver_requestMappingTemplate' - The request mapping template.
--
-- 'resolverArn', 'resolver_resolverArn' - The resolver Amazon Resource Name (ARN).
--
-- 'responseMappingTemplate', 'resolver_responseMappingTemplate' - The response mapping template.
--
-- 'runtime', 'resolver_runtime' - Undocumented member.
--
-- 'syncConfig', 'resolver_syncConfig' - The @SyncConfig@ for a resolver attached to a versioned data source.
--
-- 'typeName', 'resolver_typeName' - The resolver type name.
newResolver ::
  Resolver
newResolver =
  Resolver'
    { cachingConfig = Prelude.Nothing,
      code = Prelude.Nothing,
      dataSourceName = Prelude.Nothing,
      fieldName = Prelude.Nothing,
      kind = Prelude.Nothing,
      maxBatchSize = Prelude.Nothing,
      pipelineConfig = Prelude.Nothing,
      requestMappingTemplate = Prelude.Nothing,
      resolverArn = Prelude.Nothing,
      responseMappingTemplate = Prelude.Nothing,
      runtime = Prelude.Nothing,
      syncConfig = Prelude.Nothing,
      typeName = Prelude.Nothing
    }

-- | The caching configuration for the resolver.
resolver_cachingConfig :: Lens.Lens' Resolver (Prelude.Maybe CachingConfig)
resolver_cachingConfig = Lens.lens (\Resolver' {cachingConfig} -> cachingConfig) (\s@Resolver' {} a -> s {cachingConfig = a} :: Resolver)

-- | The @resolver@ code that contains the request and response functions.
-- When code is used, the @runtime@ is required. The @runtime@ value must
-- be @APPSYNC_JS@.
resolver_code :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_code = Lens.lens (\Resolver' {code} -> code) (\s@Resolver' {} a -> s {code = a} :: Resolver)

-- | The resolver data source name.
resolver_dataSourceName :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_dataSourceName = Lens.lens (\Resolver' {dataSourceName} -> dataSourceName) (\s@Resolver' {} a -> s {dataSourceName = a} :: Resolver)

-- | The resolver field name.
resolver_fieldName :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_fieldName = Lens.lens (\Resolver' {fieldName} -> fieldName) (\s@Resolver' {} a -> s {fieldName = a} :: Resolver)

-- | The resolver type.
--
-- -   __UNIT__: A UNIT resolver type. A UNIT resolver is the default
--     resolver type. You can use a UNIT resolver to run a GraphQL query
--     against a single data source.
--
-- -   __PIPELINE__: A PIPELINE resolver type. You can use a PIPELINE
--     resolver to invoke a series of @Function@ objects in a serial
--     manner. You can use a pipeline resolver to run a GraphQL query
--     against multiple data sources.
resolver_kind :: Lens.Lens' Resolver (Prelude.Maybe ResolverKind)
resolver_kind = Lens.lens (\Resolver' {kind} -> kind) (\s@Resolver' {} a -> s {kind = a} :: Resolver)

-- | The maximum batching size for a resolver.
resolver_maxBatchSize :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Natural)
resolver_maxBatchSize = Lens.lens (\Resolver' {maxBatchSize} -> maxBatchSize) (\s@Resolver' {} a -> s {maxBatchSize = a} :: Resolver)

-- | The @PipelineConfig@.
resolver_pipelineConfig :: Lens.Lens' Resolver (Prelude.Maybe PipelineConfig)
resolver_pipelineConfig = Lens.lens (\Resolver' {pipelineConfig} -> pipelineConfig) (\s@Resolver' {} a -> s {pipelineConfig = a} :: Resolver)

-- | The request mapping template.
resolver_requestMappingTemplate :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_requestMappingTemplate = Lens.lens (\Resolver' {requestMappingTemplate} -> requestMappingTemplate) (\s@Resolver' {} a -> s {requestMappingTemplate = a} :: Resolver)

-- | The resolver Amazon Resource Name (ARN).
resolver_resolverArn :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_resolverArn = Lens.lens (\Resolver' {resolverArn} -> resolverArn) (\s@Resolver' {} a -> s {resolverArn = a} :: Resolver)

-- | The response mapping template.
resolver_responseMappingTemplate :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_responseMappingTemplate = Lens.lens (\Resolver' {responseMappingTemplate} -> responseMappingTemplate) (\s@Resolver' {} a -> s {responseMappingTemplate = a} :: Resolver)

-- | Undocumented member.
resolver_runtime :: Lens.Lens' Resolver (Prelude.Maybe AppSyncRuntime)
resolver_runtime = Lens.lens (\Resolver' {runtime} -> runtime) (\s@Resolver' {} a -> s {runtime = a} :: Resolver)

-- | The @SyncConfig@ for a resolver attached to a versioned data source.
resolver_syncConfig :: Lens.Lens' Resolver (Prelude.Maybe SyncConfig)
resolver_syncConfig = Lens.lens (\Resolver' {syncConfig} -> syncConfig) (\s@Resolver' {} a -> s {syncConfig = a} :: Resolver)

-- | The resolver type name.
resolver_typeName :: Lens.Lens' Resolver (Prelude.Maybe Prelude.Text)
resolver_typeName = Lens.lens (\Resolver' {typeName} -> typeName) (\s@Resolver' {} a -> s {typeName = a} :: Resolver)

instance Data.FromJSON Resolver where
  parseJSON =
    Data.withObject
      "Resolver"
      ( \x ->
          Resolver'
            Prelude.<$> (x Data..:? "cachingConfig")
            Prelude.<*> (x Data..:? "code")
            Prelude.<*> (x Data..:? "dataSourceName")
            Prelude.<*> (x Data..:? "fieldName")
            Prelude.<*> (x Data..:? "kind")
            Prelude.<*> (x Data..:? "maxBatchSize")
            Prelude.<*> (x Data..:? "pipelineConfig")
            Prelude.<*> (x Data..:? "requestMappingTemplate")
            Prelude.<*> (x Data..:? "resolverArn")
            Prelude.<*> (x Data..:? "responseMappingTemplate")
            Prelude.<*> (x Data..:? "runtime")
            Prelude.<*> (x Data..:? "syncConfig")
            Prelude.<*> (x Data..:? "typeName")
      )

instance Prelude.Hashable Resolver where
  hashWithSalt _salt Resolver' {..} =
    _salt
      `Prelude.hashWithSalt` cachingConfig
      `Prelude.hashWithSalt` code
      `Prelude.hashWithSalt` dataSourceName
      `Prelude.hashWithSalt` fieldName
      `Prelude.hashWithSalt` kind
      `Prelude.hashWithSalt` maxBatchSize
      `Prelude.hashWithSalt` pipelineConfig
      `Prelude.hashWithSalt` requestMappingTemplate
      `Prelude.hashWithSalt` resolverArn
      `Prelude.hashWithSalt` responseMappingTemplate
      `Prelude.hashWithSalt` runtime
      `Prelude.hashWithSalt` syncConfig
      `Prelude.hashWithSalt` typeName

instance Prelude.NFData Resolver where
  rnf Resolver' {..} =
    Prelude.rnf cachingConfig
      `Prelude.seq` Prelude.rnf code
      `Prelude.seq` Prelude.rnf dataSourceName
      `Prelude.seq` Prelude.rnf fieldName
      `Prelude.seq` Prelude.rnf kind
      `Prelude.seq` Prelude.rnf maxBatchSize
      `Prelude.seq` Prelude.rnf pipelineConfig
      `Prelude.seq` Prelude.rnf requestMappingTemplate
      `Prelude.seq` Prelude.rnf resolverArn
      `Prelude.seq` Prelude.rnf responseMappingTemplate
      `Prelude.seq` Prelude.rnf runtime
      `Prelude.seq` Prelude.rnf syncConfig
      `Prelude.seq` Prelude.rnf typeName