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

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

-- |
-- Module      : Amazonka.Rekognition.DescribeCollection
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Describes the specified collection. You can use @DescribeCollection@ to
-- get information, such as the number of faces indexed into a collection
-- and the version of the model used by the collection for face detection.
--
-- For more information, see Describing a Collection in the Amazon
-- Rekognition Developer Guide.
module Amazonka.Rekognition.DescribeCollection
  ( -- * Creating a Request
    DescribeCollection (..),
    newDescribeCollection,

    -- * Request Lenses
    describeCollection_collectionId,

    -- * Destructuring the Response
    DescribeCollectionResponse (..),
    newDescribeCollectionResponse,

    -- * Response Lenses
    describeCollectionResponse_collectionARN,
    describeCollectionResponse_creationTimestamp,
    describeCollectionResponse_faceCount,
    describeCollectionResponse_faceModelVersion,
    describeCollectionResponse_httpStatus,
  )
where

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
import Amazonka.Rekognition.Types
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newDescribeCollection' smart constructor.
data DescribeCollection = DescribeCollection'
  { -- | The ID of the collection to describe.
    collectionId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeCollection' 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:
--
-- 'collectionId', 'describeCollection_collectionId' - The ID of the collection to describe.
newDescribeCollection ::
  -- | 'collectionId'
  Prelude.Text ->
  DescribeCollection
newDescribeCollection pCollectionId_ =
  DescribeCollection' {collectionId = pCollectionId_}

-- | The ID of the collection to describe.
describeCollection_collectionId :: Lens.Lens' DescribeCollection Prelude.Text
describeCollection_collectionId = Lens.lens (\DescribeCollection' {collectionId} -> collectionId) (\s@DescribeCollection' {} a -> s {collectionId = a} :: DescribeCollection)

instance Core.AWSRequest DescribeCollection where
  type
    AWSResponse DescribeCollection =
      DescribeCollectionResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          DescribeCollectionResponse'
            Prelude.<$> (x Data..?> "CollectionARN")
            Prelude.<*> (x Data..?> "CreationTimestamp")
            Prelude.<*> (x Data..?> "FaceCount")
            Prelude.<*> (x Data..?> "FaceModelVersion")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
      )

instance Prelude.Hashable DescribeCollection where
  hashWithSalt _salt DescribeCollection' {..} =
    _salt `Prelude.hashWithSalt` collectionId

instance Prelude.NFData DescribeCollection where
  rnf DescribeCollection' {..} =
    Prelude.rnf collectionId

instance Data.ToHeaders DescribeCollection where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "RekognitionService.DescribeCollection" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON DescribeCollection where
  toJSON DescribeCollection' {..} =
    Data.object
      ( Prelude.catMaybes
          [Prelude.Just ("CollectionId" Data..= collectionId)]
      )

instance Data.ToPath DescribeCollection where
  toPath = Prelude.const "/"

instance Data.ToQuery DescribeCollection where
  toQuery = Prelude.const Prelude.mempty

-- | /See:/ 'newDescribeCollectionResponse' smart constructor.
data DescribeCollectionResponse = DescribeCollectionResponse'
  { -- | The Amazon Resource Name (ARN) of the collection.
    collectionARN :: Prelude.Maybe Prelude.Text,
    -- | The number of milliseconds since the Unix epoch time until the creation
    -- of the collection. The Unix epoch time is 00:00:00 Coordinated Universal
    -- Time (UTC), Thursday, 1 January 1970.
    creationTimestamp :: Prelude.Maybe Data.POSIX,
    -- | The number of faces that are indexed into the collection. To index faces
    -- into a collection, use IndexFaces.
    faceCount :: Prelude.Maybe Prelude.Natural,
    -- | The version of the face model that\'s used by the collection for face
    -- detection.
    --
    -- For more information, see Model versioning in the Amazon Rekognition
    -- Developer Guide.
    faceModelVersion :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribeCollectionResponse' 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:
--
-- 'collectionARN', 'describeCollectionResponse_collectionARN' - The Amazon Resource Name (ARN) of the collection.
--
-- 'creationTimestamp', 'describeCollectionResponse_creationTimestamp' - The number of milliseconds since the Unix epoch time until the creation
-- of the collection. The Unix epoch time is 00:00:00 Coordinated Universal
-- Time (UTC), Thursday, 1 January 1970.
--
-- 'faceCount', 'describeCollectionResponse_faceCount' - The number of faces that are indexed into the collection. To index faces
-- into a collection, use IndexFaces.
--
-- 'faceModelVersion', 'describeCollectionResponse_faceModelVersion' - The version of the face model that\'s used by the collection for face
-- detection.
--
-- For more information, see Model versioning in the Amazon Rekognition
-- Developer Guide.
--
-- 'httpStatus', 'describeCollectionResponse_httpStatus' - The response's http status code.
newDescribeCollectionResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribeCollectionResponse
newDescribeCollectionResponse pHttpStatus_ =
  DescribeCollectionResponse'
    { collectionARN =
        Prelude.Nothing,
      creationTimestamp = Prelude.Nothing,
      faceCount = Prelude.Nothing,
      faceModelVersion = Prelude.Nothing,
      httpStatus = pHttpStatus_
    }

-- | The Amazon Resource Name (ARN) of the collection.
describeCollectionResponse_collectionARN :: Lens.Lens' DescribeCollectionResponse (Prelude.Maybe Prelude.Text)
describeCollectionResponse_collectionARN = Lens.lens (\DescribeCollectionResponse' {collectionARN} -> collectionARN) (\s@DescribeCollectionResponse' {} a -> s {collectionARN = a} :: DescribeCollectionResponse)

-- | The number of milliseconds since the Unix epoch time until the creation
-- of the collection. The Unix epoch time is 00:00:00 Coordinated Universal
-- Time (UTC), Thursday, 1 January 1970.
describeCollectionResponse_creationTimestamp :: Lens.Lens' DescribeCollectionResponse (Prelude.Maybe Prelude.UTCTime)
describeCollectionResponse_creationTimestamp = Lens.lens (\DescribeCollectionResponse' {creationTimestamp} -> creationTimestamp) (\s@DescribeCollectionResponse' {} a -> s {creationTimestamp = a} :: DescribeCollectionResponse) Prelude.. Lens.mapping Data._Time

-- | The number of faces that are indexed into the collection. To index faces
-- into a collection, use IndexFaces.
describeCollectionResponse_faceCount :: Lens.Lens' DescribeCollectionResponse (Prelude.Maybe Prelude.Natural)
describeCollectionResponse_faceCount = Lens.lens (\DescribeCollectionResponse' {faceCount} -> faceCount) (\s@DescribeCollectionResponse' {} a -> s {faceCount = a} :: DescribeCollectionResponse)

-- | The version of the face model that\'s used by the collection for face
-- detection.
--
-- For more information, see Model versioning in the Amazon Rekognition
-- Developer Guide.
describeCollectionResponse_faceModelVersion :: Lens.Lens' DescribeCollectionResponse (Prelude.Maybe Prelude.Text)
describeCollectionResponse_faceModelVersion = Lens.lens (\DescribeCollectionResponse' {faceModelVersion} -> faceModelVersion) (\s@DescribeCollectionResponse' {} a -> s {faceModelVersion = a} :: DescribeCollectionResponse)

-- | The response's http status code.
describeCollectionResponse_httpStatus :: Lens.Lens' DescribeCollectionResponse Prelude.Int
describeCollectionResponse_httpStatus = Lens.lens (\DescribeCollectionResponse' {httpStatus} -> httpStatus) (\s@DescribeCollectionResponse' {} a -> s {httpStatus = a} :: DescribeCollectionResponse)

instance Prelude.NFData DescribeCollectionResponse where
  rnf DescribeCollectionResponse' {..} =
    Prelude.rnf collectionARN
      `Prelude.seq` Prelude.rnf creationTimestamp
      `Prelude.seq` Prelude.rnf faceCount
      `Prelude.seq` Prelude.rnf faceModelVersion
      `Prelude.seq` Prelude.rnf httpStatus