From a9d690075ed42d80d2b92694c5acbfe5f047f943 Mon Sep 17 00:00:00 2001
From: Orion Kindel <orionkindel@gmail.com>
Date: Mon, 27 Nov 2023 15:41:12 -0600
Subject: [PATCH] feat: done!

---
 src/Gitea.Repo.purs  | 88 ++++++++++++++++++++++++++++++--------------
 src/Gitea.Types.purs |  8 ++++
 2 files changed, 69 insertions(+), 27 deletions(-)

diff --git a/src/Gitea.Repo.purs b/src/Gitea.Repo.purs
index cb7107d..52f3ed5 100644
--- a/src/Gitea.Repo.purs
+++ b/src/Gitea.Repo.purs
@@ -1,15 +1,9 @@
--- GET    /orgs/{org}/repos
--- GET    /repos/{owner}/{repo}/topics
--- PUT    /repos/{owner}/{repo}/topics/{topic}
--- DELETE /repos/{owner}/{repo}/topics/{topic}
-
 module Gitea.Repo where
 
 import Prelude hiding ((/))
 
 import Control.Monad.Reader (ask)
 import Control.Monad.Rec.Class (class MonadRec, Step(..), tailRecM)
-import Control.Plus (empty)
 import Data.Array as Array
 import Data.Tuple.Nested ((/\))
 import Data.URL (URL, (/), (?), (&))
@@ -18,7 +12,7 @@ import Effect.Class (liftEffect)
 import Gitea.Auth as Auth
 import Gitea.Error as Error
 import Gitea.Trans (GiteaT)
-import Gitea.Types (OrgName(..), Repo, RepoName(..), RepoUpdate, Username(..))
+import Gitea.Types (OrgName(..), Repo, RepoName(..), RepoUpdate, TopicName(..), Username(..))
 import HTTP (Method(..), fetch) as HTTP
 import HTTP.Request (json) as HTTP
 import Node.Buffer (Buffer)
@@ -28,15 +22,25 @@ import Simple.JSON (class WriteForeign)
 import Type.Row.Subset (class Subset)
 
 reposURL :: forall m. Monad m => Username -> RepoName -> GiteaT m URL
-reposURL (Username owner) (RepoName repo) = (\{ baseURI } -> baseURI / "repos" / owner / repo) <$> ask
+reposURL (Username owner) (RepoName repo) =
+  let
+    build { baseURI } = baseURI / "repos" / owner / repo
+  in
+    build <$> ask
+
+repoTopicsPageURL :: forall m. Monad m => Username -> RepoName -> { page :: Int, limit :: Int } -> GiteaT m URL
+repoTopicsPageURL o repo {page, limit} = (\repos -> repos / "topics" ? "limit" /\ show limit & "page" /\ show page) <$> reposURL o repo
+
+repoTopicsOneURL :: forall m. Monad m => Username -> RepoName -> TopicName -> GiteaT m URL
+repoTopicsOneURL o repo (TopicName topic) = (\repos -> repos / "topics" / topic) <$> reposURL o repo
 
 orgReposURL :: forall m. Monad m => OrgName -> { page :: Int, limit :: Int } -> GiteaT m URL
 orgReposURL (OrgName org) { page, limit } = (\{ baseURI } -> baseURI / "orgs" / org / "repos" ? "limit" /\ show limit & "page" /\ show page) <$> ask
 
 get :: forall m. MonadAff m => Username -> RepoName -> GiteaT m (Record Repo)
-get u r = do
+get owner repo = do
   { auth } <- ask
-  url <- reposURL u r
+  url <- reposURL owner repo
   rep <- HTTP.fetch $ HTTP.GET /\ url /\ Auth.headers auth
   Error.tryGetRepJSON rep
 
@@ -44,14 +48,12 @@ listForOrg :: forall m. MonadAff m => MonadRec m => OrgName -> GiteaT m (Array (
 listForOrg o =
   let
     limit = 10
-    paginate (repos /\ pageN) =
-      do
-        newRepos <- getPage pageN
-        pure
-          if Array.length newRepos < limit then
-            Done $ repos <> newRepos
-          else
-            Loop $ (repos <> newRepos) /\ (pageN + 1)
+
+    maybeFetchMore repos n newRepos
+      | Array.length newRepos < limit = Done $ repos <> newRepos
+      | otherwise = Loop $ (repos <> newRepos) /\ (n + 1)
+    paginate (repos /\ n) = maybeFetchMore repos n <$> getPage n
+
     getPage n = do
       { auth } <- ask
       url <- orgReposURL o { limit, page: n }
@@ -69,30 +71,62 @@ update
   -> RepoName
   -> Record patch
   -> GiteaT m (Record Repo)
-update u r patch = do
+update owner repo patch = do
   { auth } <- ask
-  url <- reposURL u r
+  url <- reposURL owner repo
   rep <- HTTP.fetch $ HTTP.PATCH /\ url /\ HTTP.json patch /\ Auth.headers auth
   Error.tryGetRepJSON rep
 
 delete :: forall m. MonadAff m => Username -> RepoName -> GiteaT m Unit
-delete u r = do
+delete owner repo = do
   { auth } <- ask
-  url <- reposURL u r
+  url <- reposURL owner repo
   rep <- HTTP.fetch $ HTTP.DELETE /\ url /\ Auth.headers auth
   Error.guardStatusOk rep
 
 updateAvatar :: forall m. MonadAff m => Username -> RepoName -> Buffer -> GiteaT m Unit
-updateAvatar u r av = do
+updateAvatar owner repo avatar = do
   { auth } <- ask
-  url <- map (_ / "avatar") $ reposURL u r
-  b64 <- liftEffect $ Buffer.toString Base64 av
+  url <- map (_ / "avatar") $ reposURL owner repo
+  b64 <- liftEffect $ Buffer.toString Base64 avatar
   rep <- HTTP.fetch $ HTTP.POST /\ url /\ HTTP.json { image: b64 } /\ Auth.headers auth
   Error.guardStatusOk rep
 
 removeAvatar :: forall m. MonadAff m => Username -> RepoName -> GiteaT m Unit
-removeAvatar u r = do
+removeAvatar owner repo = do
   { auth } <- ask
-  url <- map (_ / "avatar") $ reposURL u r
+  url <- map (_ / "avatar") $ reposURL owner repo
+  rep <- HTTP.fetch $ HTTP.DELETE /\ url /\ Auth.headers auth
+  Error.guardStatusOk rep
+
+addTopic :: forall m. MonadAff m => Username -> RepoName -> TopicName -> GiteaT m Unit
+addTopic owner repo topic = do
+  { auth } <- ask
+  url <- repoTopicsOneURL owner repo topic
+  rep <- HTTP.fetch $ HTTP.PUT /\ url /\ Auth.headers auth
+  Error.guardStatusOk rep
+
+getTopics :: forall m. MonadAff m => MonadRec m => Username -> RepoName -> GiteaT m (Array TopicName)
+getTopics owner repo =
+  let
+    limit = 10
+
+    maybeFetchMore topics n newTopics
+      | Array.length newTopics < limit = Done $ topics <> newTopics
+      | otherwise = Loop $ (topics <> newTopics) /\ (n + 1)
+    paginate (topics /\ n) = maybeFetchMore topics n <$> getPage n
+
+    getPage n = do
+      { auth } <- ask
+      url <- repoTopicsPageURL owner repo { limit, page: n }
+      rep <- HTTP.fetch $ HTTP.GET /\ url /\ Auth.headers auth
+      Error.tryGetRepJSON rep
+  in
+    tailRecM paginate ([] /\ 1)
+
+removeTopic :: forall m. MonadAff m => Username -> RepoName -> TopicName -> GiteaT m Unit
+removeTopic owner repo topic = do
+  { auth } <- ask
+  url <- repoTopicsOneURL owner repo topic
   rep <- HTTP.fetch $ HTTP.DELETE /\ url /\ Auth.headers auth
   Error.guardStatusOk rep
diff --git a/src/Gitea.Types.purs b/src/Gitea.Types.purs
index a2ca0c9..c23728e 100644
--- a/src/Gitea.Types.purs
+++ b/src/Gitea.Types.purs
@@ -17,6 +17,14 @@ derive newtype instance Show RepoName
 derive newtype instance WriteForeign RepoName
 derive newtype instance ReadForeign RepoName
 
+newtype TopicName = TopicName String
+
+derive instance Newtype TopicName _
+derive newtype instance Eq TopicName
+derive newtype instance Show TopicName
+derive newtype instance WriteForeign TopicName
+derive newtype instance ReadForeign TopicName
+
 newtype OrgName = OrgName String
 
 derive instance Newtype OrgName _