{-# LANGUAGE OverloadedStrings #-}

-- |
-- Module      : MergeRequests
-- Description : Queries about merge requests against projects
-- Copyright   : (c) Rob Stewart, Heriot-Watt University, 2019
-- License     : BSD3
-- Maintainer  : robstewart57@gmail.com
-- Stability   : stable
module GitLab.API.MergeRequests where

import Data.Either
import Data.Text (Text)
import qualified Data.Text as T
import GitLab.Types
import GitLab.WebRequests.GitLabWebCalls
import Network.HTTP.Types.Status

-- | returns the merge request for a project given its merge request
-- IID.
mergeRequest ::
  -- | project
  Project ->
  -- | merge request IID
  Int ->
  GitLab (Either Status (Maybe MergeRequest))
mergeRequest :: Project -> Int -> GitLab (Either Status (Maybe MergeRequest))
mergeRequest Project
project =
  Int -> Int -> GitLab (Either Status (Maybe MergeRequest))
mergeRequest' (Project -> Int
project_id Project
project)

-- | returns the merge request for a project given its project ID and
-- merge request IID.
mergeRequest' ::
  -- | project ID
  Int ->
  -- | merge request IID
  Int ->
  GitLab (Either Status (Maybe MergeRequest))
mergeRequest' :: Int -> Int -> GitLab (Either Status (Maybe MergeRequest))
mergeRequest' Int
projectId Int
mergeRequestIID =
  Text -> GitLab (Either Status (Maybe MergeRequest))
forall a. FromJSON a => Text -> GitLab (Either Status (Maybe a))
gitlabOne Text
addr
  where
    addr :: Text
addr =
      Text
"/projects/"
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> String -> Text
T.pack (Int -> String
forall a. Show a => a -> String
show Int
projectId)
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"/merge_requests/"
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> String -> Text
T.pack (Int -> String
forall a. Show a => a -> String
show Int
mergeRequestIID)

-- | returns the merge requests for a project.
mergeRequests ::
  -- | the project
  Project ->
  GitLab [MergeRequest]
mergeRequests :: Project -> GitLab [MergeRequest]
mergeRequests Project
p = do
  Either Status [MergeRequest]
result <- Int -> GitLab (Either Status [MergeRequest])
mergeRequests' (Project -> Int
project_id Project
p)
  [MergeRequest] -> GitLab [MergeRequest]
forall (m :: * -> *) a. Monad m => a -> m a
return ([MergeRequest] -> Either Status [MergeRequest] -> [MergeRequest]
forall b a. b -> Either a b -> b
fromRight (String -> [MergeRequest]
forall a. HasCallStack => String -> a
error String
"mergeRequests error") Either Status [MergeRequest]
result)

-- | returns the merge requests for a project given its project ID.
mergeRequests' ::
  -- | project ID
  Int ->
  GitLab (Either Status [MergeRequest])
mergeRequests' :: Int -> GitLab (Either Status [MergeRequest])
mergeRequests' Int
projectId =
  Text -> Text -> GitLab (Either Status [MergeRequest])
forall a. FromJSON a => Text -> Text -> GitLab (Either Status [a])
gitlabWithAttrs Text
addr Text
"&scope=all"
  where
    addr :: Text
addr =
      Text
"/projects/"
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> String -> Text
T.pack (Int -> String
forall a. Show a => a -> String
show Int
projectId)
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"/merge_requests"

-- | Creates a merge request.
createMergeRequest ::
  -- | project
  Project ->
  -- | source branch
  Text ->
  -- | target branch
  Text ->
  -- | target project ID
  Int ->
  -- | merge request title
  Text ->
  -- | merge request description
  Text ->
  GitLab (Either Status (Maybe MergeRequest))
createMergeRequest :: Project
-> Text
-> Text
-> Int
-> Text
-> Text
-> GitLab (Either Status (Maybe MergeRequest))
createMergeRequest Project
project =
  Int
-> Text
-> Text
-> Int
-> Text
-> Text
-> GitLab (Either Status (Maybe MergeRequest))
createMergeRequest' (Project -> Int
project_id Project
project)

-- | Creates a merge request.
createMergeRequest' ::
  -- | project ID
  Int ->
  -- | source branch
  Text ->
  -- | target branch
  Text ->
  -- | target project ID
  Int ->
  -- | merge request title
  Text ->
  -- | merge request description
  Text ->
  GitLab (Either Status (Maybe MergeRequest))
createMergeRequest' :: Int
-> Text
-> Text
-> Int
-> Text
-> Text
-> GitLab (Either Status (Maybe MergeRequest))
createMergeRequest' Int
projectId Text
sourceBranch Text
targetBranch Int
targetProjectId Text
mrTitle Text
mrDescription =
  Text -> Text -> GitLab (Either Status (Maybe MergeRequest))
forall b.
FromJSON b =>
Text -> Text -> GitLab (Either Status (Maybe b))
gitlabPost Text
addr Text
dataBody
  where
    dataBody :: Text
    dataBody :: Text
dataBody =
      Text
"source_branch=" Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
sourceBranch Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"&target_branch=" Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
targetBranch
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"&target_project_id="
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> String -> Text
T.pack (Int -> String
forall a. Show a => a -> String
show Int
targetProjectId)
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"&title="
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
mrTitle
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
"&description="
        Text -> Text -> Text
forall a. Semigroup a => a -> a -> a
<> Text
mrDescription
    addr :: Text
addr = String -> Text
T.pack (String -> Text) -> String -> Text
forall a b. (a -> b) -> a -> b
$ String
"/projects/" String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
projectId String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
"/merge_requests"

-- | Accepts a merge request.
acceptMergeRequest ::
  -- | project
  Project ->
  -- | merge request IID
  Int ->
  GitLab (Either Status (Maybe MergeRequest))
acceptMergeRequest :: Project -> Int -> GitLab (Either Status (Maybe MergeRequest))
acceptMergeRequest Project
project =
  Int -> Int -> GitLab (Either Status (Maybe MergeRequest))
acceptMergeRequest' (Project -> Int
project_id Project
project)

-- | Accepts a merge request.
acceptMergeRequest' ::
  -- | project ID
  Int ->
  -- | merge request IID
  Int ->
  GitLab (Either Status (Maybe MergeRequest))
acceptMergeRequest' :: Int -> Int -> GitLab (Either Status (Maybe MergeRequest))
acceptMergeRequest' Int
projectId Int
mergeRequestIid = Text -> Text -> GitLab (Either Status (Maybe MergeRequest))
forall b.
FromJSON b =>
Text -> Text -> GitLab (Either Status (Maybe b))
gitlabPost Text
addr Text
dataBody
  where
    dataBody :: Text
    dataBody :: Text
dataBody =
      String -> Text
T.pack (String -> Text) -> String -> Text
forall a b. (a -> b) -> a -> b
$
        String
"id=" String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
projectId String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
"&merge_request_iid=" String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
mergeRequestIid
    addr :: Text
addr =
      String -> Text
T.pack (String -> Text) -> String -> Text
forall a b. (a -> b) -> a -> b
$
        String
"/projects/" String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
projectId String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
"/merge_requests/"
          String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
mergeRequestIid
          String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
"/merge"

-- | Deletes a merge request. Only for admins and project owners.
deleteMergeRequest ::
  -- | project
  Project ->
  -- | merge request IID
  Int ->
  GitLab (Either Status ())
deleteMergeRequest :: Project -> Int -> GitLab (Either Status ())
deleteMergeRequest Project
project =
  Int -> Int -> GitLab (Either Status ())
deleteMergeRequest' (Project -> Int
project_id Project
project)

-- | Deletes a merge request. Only for admins and project owners.
deleteMergeRequest' ::
  -- | project ID
  Int ->
  -- | merge request IID
  Int ->
  GitLab (Either Status ())
deleteMergeRequest' :: Int -> Int -> GitLab (Either Status ())
deleteMergeRequest' Int
projectId Int
mergeRequestIid = Text -> GitLab (Either Status ())
gitlabDelete Text
addr
  where
    addr :: Text
addr =
      String -> Text
T.pack (String -> Text) -> String -> Text
forall a b. (a -> b) -> a -> b
$
        String
"/projects/" String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
projectId String -> String -> String
forall a. Semigroup a => a -> a -> a
<> String
"/merge_requests/"
          String -> String -> String
forall a. Semigroup a => a -> a -> a
<> Int -> String
forall a. Show a => a -> String
show Int
mergeRequestIid