{-# 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.QLDB.GetRevision
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
--
-- Returns a revision data object for a specified document ID and block
-- address. Also returns a proof of the specified revision for verification
-- if @DigestTipAddress@ is provided.
module Amazonka.QLDB.GetRevision
  ( -- * Creating a Request
    GetRevision (..),
    newGetRevision,

    -- * Request Lenses
    getRevision_digestTipAddress,
    getRevision_name,
    getRevision_blockAddress,
    getRevision_documentId,

    -- * Destructuring the Response
    GetRevisionResponse (..),
    newGetRevisionResponse,

    -- * Response Lenses
    getRevisionResponse_proof,
    getRevisionResponse_httpStatus,
    getRevisionResponse_revision,
  )
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.QLDB.Types
import qualified Amazonka.Request as Request
import qualified Amazonka.Response as Response

-- | /See:/ 'newGetRevision' smart constructor.
data GetRevision = GetRevision'
  { -- | The latest block location covered by the digest for which to request a
    -- proof. An address is an Amazon Ion structure that has two fields:
    -- @strandId@ and @sequenceNo@.
    --
    -- For example: @{strandId:\"BlFTjlSXze9BIh1KOszcE3\",sequenceNo:49}@.
    digestTipAddress :: Prelude.Maybe (Data.Sensitive ValueHolder),
    -- | The name of the ledger.
    name :: Prelude.Text,
    -- | The block location of the document revision to be verified. An address
    -- is an Amazon Ion structure that has two fields: @strandId@ and
    -- @sequenceNo@.
    --
    -- For example: @{strandId:\"BlFTjlSXze9BIh1KOszcE3\",sequenceNo:14}@.
    blockAddress :: Data.Sensitive ValueHolder,
    -- | The UUID (represented in Base62-encoded text) of the document to be
    -- verified.
    documentId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetRevision' 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:
--
-- 'digestTipAddress', 'getRevision_digestTipAddress' - The latest block location covered by the digest for which to request a
-- proof. An address is an Amazon Ion structure that has two fields:
-- @strandId@ and @sequenceNo@.
--
-- For example: @{strandId:\"BlFTjlSXze9BIh1KOszcE3\",sequenceNo:49}@.
--
-- 'name', 'getRevision_name' - The name of the ledger.
--
-- 'blockAddress', 'getRevision_blockAddress' - The block location of the document revision to be verified. An address
-- is an Amazon Ion structure that has two fields: @strandId@ and
-- @sequenceNo@.
--
-- For example: @{strandId:\"BlFTjlSXze9BIh1KOszcE3\",sequenceNo:14}@.
--
-- 'documentId', 'getRevision_documentId' - The UUID (represented in Base62-encoded text) of the document to be
-- verified.
newGetRevision ::
  -- | 'name'
  Prelude.Text ->
  -- | 'blockAddress'
  ValueHolder ->
  -- | 'documentId'
  Prelude.Text ->
  GetRevision
newGetRevision pName_ pBlockAddress_ pDocumentId_ =
  GetRevision'
    { digestTipAddress = Prelude.Nothing,
      name = pName_,
      blockAddress = Data._Sensitive Lens.# pBlockAddress_,
      documentId = pDocumentId_
    }

-- | The latest block location covered by the digest for which to request a
-- proof. An address is an Amazon Ion structure that has two fields:
-- @strandId@ and @sequenceNo@.
--
-- For example: @{strandId:\"BlFTjlSXze9BIh1KOszcE3\",sequenceNo:49}@.
getRevision_digestTipAddress :: Lens.Lens' GetRevision (Prelude.Maybe ValueHolder)
getRevision_digestTipAddress = Lens.lens (\GetRevision' {digestTipAddress} -> digestTipAddress) (\s@GetRevision' {} a -> s {digestTipAddress = a} :: GetRevision) Prelude.. Lens.mapping Data._Sensitive

-- | The name of the ledger.
getRevision_name :: Lens.Lens' GetRevision Prelude.Text
getRevision_name = Lens.lens (\GetRevision' {name} -> name) (\s@GetRevision' {} a -> s {name = a} :: GetRevision)

-- | The block location of the document revision to be verified. An address
-- is an Amazon Ion structure that has two fields: @strandId@ and
-- @sequenceNo@.
--
-- For example: @{strandId:\"BlFTjlSXze9BIh1KOszcE3\",sequenceNo:14}@.
getRevision_blockAddress :: Lens.Lens' GetRevision ValueHolder
getRevision_blockAddress = Lens.lens (\GetRevision' {blockAddress} -> blockAddress) (\s@GetRevision' {} a -> s {blockAddress = a} :: GetRevision) Prelude.. Data._Sensitive

-- | The UUID (represented in Base62-encoded text) of the document to be
-- verified.
getRevision_documentId :: Lens.Lens' GetRevision Prelude.Text
getRevision_documentId = Lens.lens (\GetRevision' {documentId} -> documentId) (\s@GetRevision' {} a -> s {documentId = a} :: GetRevision)

instance Core.AWSRequest GetRevision where
  type AWSResponse GetRevision = GetRevisionResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          GetRevisionResponse'
            Prelude.<$> (x Data..?> "Proof")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
            Prelude.<*> (x Data..:> "Revision")
      )

instance Prelude.Hashable GetRevision where
  hashWithSalt _salt GetRevision' {..} =
    _salt
      `Prelude.hashWithSalt` digestTipAddress
      `Prelude.hashWithSalt` name
      `Prelude.hashWithSalt` blockAddress
      `Prelude.hashWithSalt` documentId

instance Prelude.NFData GetRevision where
  rnf GetRevision' {..} =
    Prelude.rnf digestTipAddress
      `Prelude.seq` Prelude.rnf name
      `Prelude.seq` Prelude.rnf blockAddress
      `Prelude.seq` Prelude.rnf documentId

instance Data.ToHeaders GetRevision where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "Content-Type"
              Data.=# ( "application/x-amz-json-1.0" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON GetRevision where
  toJSON GetRevision' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("DigestTipAddress" Data..=)
              Prelude.<$> digestTipAddress,
            Prelude.Just ("BlockAddress" Data..= blockAddress),
            Prelude.Just ("DocumentId" Data..= documentId)
          ]
      )

instance Data.ToPath GetRevision where
  toPath GetRevision' {..} =
    Prelude.mconcat
      ["/ledgers/", Data.toBS name, "/revision"]

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

-- | /See:/ 'newGetRevisionResponse' smart constructor.
data GetRevisionResponse = GetRevisionResponse'
  { -- | The proof object in Amazon Ion format returned by a @GetRevision@
    -- request. A proof contains the list of hash values that are required to
    -- recalculate the specified digest using a Merkle tree, starting with the
    -- specified document revision.
    proof :: Prelude.Maybe (Data.Sensitive ValueHolder),
    -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | The document revision data object in Amazon Ion format.
    revision :: Data.Sensitive ValueHolder
  }
  deriving (Prelude.Eq, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'GetRevisionResponse' 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:
--
-- 'proof', 'getRevisionResponse_proof' - The proof object in Amazon Ion format returned by a @GetRevision@
-- request. A proof contains the list of hash values that are required to
-- recalculate the specified digest using a Merkle tree, starting with the
-- specified document revision.
--
-- 'httpStatus', 'getRevisionResponse_httpStatus' - The response's http status code.
--
-- 'revision', 'getRevisionResponse_revision' - The document revision data object in Amazon Ion format.
newGetRevisionResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  -- | 'revision'
  ValueHolder ->
  GetRevisionResponse
newGetRevisionResponse pHttpStatus_ pRevision_ =
  GetRevisionResponse'
    { proof = Prelude.Nothing,
      httpStatus = pHttpStatus_,
      revision = Data._Sensitive Lens.# pRevision_
    }

-- | The proof object in Amazon Ion format returned by a @GetRevision@
-- request. A proof contains the list of hash values that are required to
-- recalculate the specified digest using a Merkle tree, starting with the
-- specified document revision.
getRevisionResponse_proof :: Lens.Lens' GetRevisionResponse (Prelude.Maybe ValueHolder)
getRevisionResponse_proof = Lens.lens (\GetRevisionResponse' {proof} -> proof) (\s@GetRevisionResponse' {} a -> s {proof = a} :: GetRevisionResponse) Prelude.. Lens.mapping Data._Sensitive

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

-- | The document revision data object in Amazon Ion format.
getRevisionResponse_revision :: Lens.Lens' GetRevisionResponse ValueHolder
getRevisionResponse_revision = Lens.lens (\GetRevisionResponse' {revision} -> revision) (\s@GetRevisionResponse' {} a -> s {revision = a} :: GetRevisionResponse) Prelude.. Data._Sensitive

instance Prelude.NFData GetRevisionResponse where
  rnf GetRevisionResponse' {..} =
    Prelude.rnf proof
      `Prelude.seq` Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf revision