{-# 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.CodeCommit.DescribePullRequestEvents
-- 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 information about one or more pull request events.
--
-- This operation returns paginated results.
module Amazonka.CodeCommit.DescribePullRequestEvents
  ( -- * Creating a Request
    DescribePullRequestEvents (..),
    newDescribePullRequestEvents,

    -- * Request Lenses
    describePullRequestEvents_actorArn,
    describePullRequestEvents_maxResults,
    describePullRequestEvents_nextToken,
    describePullRequestEvents_pullRequestEventType,
    describePullRequestEvents_pullRequestId,

    -- * Destructuring the Response
    DescribePullRequestEventsResponse (..),
    newDescribePullRequestEventsResponse,

    -- * Response Lenses
    describePullRequestEventsResponse_nextToken,
    describePullRequestEventsResponse_httpStatus,
    describePullRequestEventsResponse_pullRequestEvents,
  )
where

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

-- | /See:/ 'newDescribePullRequestEvents' smart constructor.
data DescribePullRequestEvents = DescribePullRequestEvents'
  { -- | The Amazon Resource Name (ARN) of the user whose actions resulted in the
    -- event. Examples include updating the pull request with more commits or
    -- changing the status of a pull request.
    actorArn :: Prelude.Maybe Prelude.Text,
    -- | A non-zero, non-negative integer used to limit the number of returned
    -- results. The default is 100 events, which is also the maximum number of
    -- events that can be returned in a result.
    maxResults :: Prelude.Maybe Prelude.Int,
    -- | An enumeration token that, when provided in a request, returns the next
    -- batch of the results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | Optional. The pull request event type about which you want to return
    -- information.
    pullRequestEventType :: Prelude.Maybe PullRequestEventType,
    -- | The system-generated ID of the pull request. To get this ID, use
    -- ListPullRequests.
    pullRequestId :: Prelude.Text
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribePullRequestEvents' 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:
--
-- 'actorArn', 'describePullRequestEvents_actorArn' - The Amazon Resource Name (ARN) of the user whose actions resulted in the
-- event. Examples include updating the pull request with more commits or
-- changing the status of a pull request.
--
-- 'maxResults', 'describePullRequestEvents_maxResults' - A non-zero, non-negative integer used to limit the number of returned
-- results. The default is 100 events, which is also the maximum number of
-- events that can be returned in a result.
--
-- 'nextToken', 'describePullRequestEvents_nextToken' - An enumeration token that, when provided in a request, returns the next
-- batch of the results.
--
-- 'pullRequestEventType', 'describePullRequestEvents_pullRequestEventType' - Optional. The pull request event type about which you want to return
-- information.
--
-- 'pullRequestId', 'describePullRequestEvents_pullRequestId' - The system-generated ID of the pull request. To get this ID, use
-- ListPullRequests.
newDescribePullRequestEvents ::
  -- | 'pullRequestId'
  Prelude.Text ->
  DescribePullRequestEvents
newDescribePullRequestEvents pPullRequestId_ =
  DescribePullRequestEvents'
    { actorArn =
        Prelude.Nothing,
      maxResults = Prelude.Nothing,
      nextToken = Prelude.Nothing,
      pullRequestEventType = Prelude.Nothing,
      pullRequestId = pPullRequestId_
    }

-- | The Amazon Resource Name (ARN) of the user whose actions resulted in the
-- event. Examples include updating the pull request with more commits or
-- changing the status of a pull request.
describePullRequestEvents_actorArn :: Lens.Lens' DescribePullRequestEvents (Prelude.Maybe Prelude.Text)
describePullRequestEvents_actorArn = Lens.lens (\DescribePullRequestEvents' {actorArn} -> actorArn) (\s@DescribePullRequestEvents' {} a -> s {actorArn = a} :: DescribePullRequestEvents)

-- | A non-zero, non-negative integer used to limit the number of returned
-- results. The default is 100 events, which is also the maximum number of
-- events that can be returned in a result.
describePullRequestEvents_maxResults :: Lens.Lens' DescribePullRequestEvents (Prelude.Maybe Prelude.Int)
describePullRequestEvents_maxResults = Lens.lens (\DescribePullRequestEvents' {maxResults} -> maxResults) (\s@DescribePullRequestEvents' {} a -> s {maxResults = a} :: DescribePullRequestEvents)

-- | An enumeration token that, when provided in a request, returns the next
-- batch of the results.
describePullRequestEvents_nextToken :: Lens.Lens' DescribePullRequestEvents (Prelude.Maybe Prelude.Text)
describePullRequestEvents_nextToken = Lens.lens (\DescribePullRequestEvents' {nextToken} -> nextToken) (\s@DescribePullRequestEvents' {} a -> s {nextToken = a} :: DescribePullRequestEvents)

-- | Optional. The pull request event type about which you want to return
-- information.
describePullRequestEvents_pullRequestEventType :: Lens.Lens' DescribePullRequestEvents (Prelude.Maybe PullRequestEventType)
describePullRequestEvents_pullRequestEventType = Lens.lens (\DescribePullRequestEvents' {pullRequestEventType} -> pullRequestEventType) (\s@DescribePullRequestEvents' {} a -> s {pullRequestEventType = a} :: DescribePullRequestEvents)

-- | The system-generated ID of the pull request. To get this ID, use
-- ListPullRequests.
describePullRequestEvents_pullRequestId :: Lens.Lens' DescribePullRequestEvents Prelude.Text
describePullRequestEvents_pullRequestId = Lens.lens (\DescribePullRequestEvents' {pullRequestId} -> pullRequestId) (\s@DescribePullRequestEvents' {} a -> s {pullRequestId = a} :: DescribePullRequestEvents)

instance Core.AWSPager DescribePullRequestEvents where
  page rq rs
    | Core.stop
        ( rs
            Lens.^? describePullRequestEventsResponse_nextToken
            Prelude.. Lens._Just
        ) =
        Prelude.Nothing
    | Core.stop
        ( rs
            Lens.^. describePullRequestEventsResponse_pullRequestEvents
        ) =
        Prelude.Nothing
    | Prelude.otherwise =
        Prelude.Just
          Prelude.$ rq
          Prelude.& describePullRequestEvents_nextToken
          Lens..~ rs
          Lens.^? describePullRequestEventsResponse_nextToken
          Prelude.. Lens._Just

instance Core.AWSRequest DescribePullRequestEvents where
  type
    AWSResponse DescribePullRequestEvents =
      DescribePullRequestEventsResponse
  request overrides =
    Request.postJSON (overrides defaultService)
  response =
    Response.receiveJSON
      ( \s h x ->
          DescribePullRequestEventsResponse'
            Prelude.<$> (x Data..?> "nextToken")
            Prelude.<*> (Prelude.pure (Prelude.fromEnum s))
            Prelude.<*> ( x
                            Data..?> "pullRequestEvents"
                            Core..!@ Prelude.mempty
                        )
      )

instance Prelude.Hashable DescribePullRequestEvents where
  hashWithSalt _salt DescribePullRequestEvents' {..} =
    _salt
      `Prelude.hashWithSalt` actorArn
      `Prelude.hashWithSalt` maxResults
      `Prelude.hashWithSalt` nextToken
      `Prelude.hashWithSalt` pullRequestEventType
      `Prelude.hashWithSalt` pullRequestId

instance Prelude.NFData DescribePullRequestEvents where
  rnf DescribePullRequestEvents' {..} =
    Prelude.rnf actorArn
      `Prelude.seq` Prelude.rnf maxResults
      `Prelude.seq` Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf pullRequestEventType
      `Prelude.seq` Prelude.rnf pullRequestId

instance Data.ToHeaders DescribePullRequestEvents where
  toHeaders =
    Prelude.const
      ( Prelude.mconcat
          [ "X-Amz-Target"
              Data.=# ( "CodeCommit_20150413.DescribePullRequestEvents" ::
                          Prelude.ByteString
                      ),
            "Content-Type"
              Data.=# ( "application/x-amz-json-1.1" ::
                          Prelude.ByteString
                      )
          ]
      )

instance Data.ToJSON DescribePullRequestEvents where
  toJSON DescribePullRequestEvents' {..} =
    Data.object
      ( Prelude.catMaybes
          [ ("actorArn" Data..=) Prelude.<$> actorArn,
            ("maxResults" Data..=) Prelude.<$> maxResults,
            ("nextToken" Data..=) Prelude.<$> nextToken,
            ("pullRequestEventType" Data..=)
              Prelude.<$> pullRequestEventType,
            Prelude.Just
              ("pullRequestId" Data..= pullRequestId)
          ]
      )

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

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

-- | /See:/ 'newDescribePullRequestEventsResponse' smart constructor.
data DescribePullRequestEventsResponse = DescribePullRequestEventsResponse'
  { -- | An enumeration token that can be used in a request to return the next
    -- batch of the results.
    nextToken :: Prelude.Maybe Prelude.Text,
    -- | The response's http status code.
    httpStatus :: Prelude.Int,
    -- | Information about the pull request events.
    pullRequestEvents :: [PullRequestEvent]
  }
  deriving (Prelude.Eq, Prelude.Read, Prelude.Show, Prelude.Generic)

-- |
-- Create a value of 'DescribePullRequestEventsResponse' 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:
--
-- 'nextToken', 'describePullRequestEventsResponse_nextToken' - An enumeration token that can be used in a request to return the next
-- batch of the results.
--
-- 'httpStatus', 'describePullRequestEventsResponse_httpStatus' - The response's http status code.
--
-- 'pullRequestEvents', 'describePullRequestEventsResponse_pullRequestEvents' - Information about the pull request events.
newDescribePullRequestEventsResponse ::
  -- | 'httpStatus'
  Prelude.Int ->
  DescribePullRequestEventsResponse
newDescribePullRequestEventsResponse pHttpStatus_ =
  DescribePullRequestEventsResponse'
    { nextToken =
        Prelude.Nothing,
      httpStatus = pHttpStatus_,
      pullRequestEvents = Prelude.mempty
    }

-- | An enumeration token that can be used in a request to return the next
-- batch of the results.
describePullRequestEventsResponse_nextToken :: Lens.Lens' DescribePullRequestEventsResponse (Prelude.Maybe Prelude.Text)
describePullRequestEventsResponse_nextToken = Lens.lens (\DescribePullRequestEventsResponse' {nextToken} -> nextToken) (\s@DescribePullRequestEventsResponse' {} a -> s {nextToken = a} :: DescribePullRequestEventsResponse)

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

-- | Information about the pull request events.
describePullRequestEventsResponse_pullRequestEvents :: Lens.Lens' DescribePullRequestEventsResponse [PullRequestEvent]
describePullRequestEventsResponse_pullRequestEvents = Lens.lens (\DescribePullRequestEventsResponse' {pullRequestEvents} -> pullRequestEvents) (\s@DescribePullRequestEventsResponse' {} a -> s {pullRequestEvents = a} :: DescribePullRequestEventsResponse) Prelude.. Lens.coerced

instance
  Prelude.NFData
    DescribePullRequestEventsResponse
  where
  rnf DescribePullRequestEventsResponse' {..} =
    Prelude.rnf nextToken
      `Prelude.seq` Prelude.rnf httpStatus
      `Prelude.seq` Prelude.rnf pullRequestEvents