From a76915c7fcd13129cf38a6d014cf569d1e2047a3 Mon Sep 17 00:00:00 2001
From: Darius Rapalis <info@rdarius.lt>
Date: Tue, 11 Mar 2025 15:08:29 +0200
Subject: [PATCH] #11 - unfollow

---
 internal/database/feleteFeedFollow.sql.go | 26 +++++++++++++++++++
 internal/handlers/addFeedHandler.go       |  2 +-
 internal/handlers/fetchFeedHandler.go     |  2 +-
 internal/handlers/followFeedHandler.go    |  2 +-
 internal/handlers/unfollowFeedHandler.go  | 31 +++++++++++++++++++++++
 main.go                                   |  1 +
 sql/queries/feleteFeedFollow.sql          |  2 ++
 7 files changed, 63 insertions(+), 3 deletions(-)
 create mode 100644 internal/database/feleteFeedFollow.sql.go
 create mode 100644 internal/handlers/unfollowFeedHandler.go
 create mode 100644 sql/queries/feleteFeedFollow.sql

diff --git a/internal/database/feleteFeedFollow.sql.go b/internal/database/feleteFeedFollow.sql.go
new file mode 100644
index 0000000..6612e81
--- /dev/null
+++ b/internal/database/feleteFeedFollow.sql.go
@@ -0,0 +1,26 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+// source: feleteFeedFollow.sql
+
+package database
+
+import (
+	"context"
+
+	"github.com/google/uuid"
+)
+
+const deleteFeedFollow = `-- name: DeleteFeedFollow :exec
+DELETE FROM feed_follows WHERE feed_follows.user_id  = $1 AND feed_follows.feed_id = (SELECT id FROM feeds WHERE url = $2)
+`
+
+type DeleteFeedFollowParams struct {
+	UserID uuid.UUID
+	Url    string
+}
+
+func (q *Queries) DeleteFeedFollow(ctx context.Context, arg DeleteFeedFollowParams) error {
+	_, err := q.db.ExecContext(ctx, deleteFeedFollow, arg.UserID, arg.Url)
+	return err
+}
diff --git a/internal/handlers/addFeedHandler.go b/internal/handlers/addFeedHandler.go
index 7cbfb89..5fdeeef 100644
--- a/internal/handlers/addFeedHandler.go
+++ b/internal/handlers/addFeedHandler.go
@@ -52,7 +52,7 @@ func AddFeedHandler(s *config.State, cmd config.Command, user database.User) err
 		return err
 	}
 
-	fmt.Printf("%v", f)
+	fmt.Printf("%v\n", f)
 
 	return nil
 }
diff --git a/internal/handlers/fetchFeedHandler.go b/internal/handlers/fetchFeedHandler.go
index 048dc5a..39a2d25 100644
--- a/internal/handlers/fetchFeedHandler.go
+++ b/internal/handlers/fetchFeedHandler.go
@@ -24,7 +24,7 @@ func FetchFeedHandler(s *config.State, cmd config.Command) error {
 		os.Exit(1)
 	}
 
-	fmt.Printf("%v", feed)
+	fmt.Printf("%v\n", feed)
 
 	return nil
 }
diff --git a/internal/handlers/followFeedHandler.go b/internal/handlers/followFeedHandler.go
index 4a962a5..c513a91 100644
--- a/internal/handlers/followFeedHandler.go
+++ b/internal/handlers/followFeedHandler.go
@@ -56,7 +56,7 @@ func FollowFeedHandler(s *config.State, cmd config.Command, user database.User)
 		return err
 	}
 
-	fmt.Printf("%v", feed)
+	fmt.Printf("%v\n", feed)
 
 	return nil
 }
diff --git a/internal/handlers/unfollowFeedHandler.go b/internal/handlers/unfollowFeedHandler.go
new file mode 100644
index 0000000..c4fcfdc
--- /dev/null
+++ b/internal/handlers/unfollowFeedHandler.go
@@ -0,0 +1,31 @@
+package handlers
+
+import (
+	"context"
+	"fmt"
+	"github.com/rdarius/boot-dev-blog-aggregator/internal/config"
+	"github.com/rdarius/boot-dev-blog-aggregator/internal/database"
+	"log"
+)
+
+func UnfollowFeedHandler(s *config.State, cmd config.Command, user database.User) error {
+	if len(cmd.Args) < 1 {
+		log.Fatal("usage: boot-dev-blog-aggregator unfollow URL")
+	}
+	ctx := context.Background()
+
+	url := cmd.Args[0]
+
+	err := s.DB.DeleteFeedFollow(ctx, database.DeleteFeedFollowParams{
+		UserID: user.ID,
+		Url:    url,
+	})
+
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Feed unfollow successfully")
+
+	return nil
+}
diff --git a/main.go b/main.go
index a35ac6d..8109243 100644
--- a/main.go
+++ b/main.go
@@ -40,6 +40,7 @@ func main() {
 	commands.Register("addfeed", middlewareLoggedIn(handlers.AddFeedHandler))
 	commands.Register("feeds", handlers.ListFeedsHandler)
 	commands.Register("follow", middlewareLoggedIn(handlers.FollowFeedHandler))
+	commands.Register("unfollow", middlewareLoggedIn(handlers.UnfollowFeedHandler))
 	commands.Register("following", middlewareLoggedIn(handlers.GetFeedFollowsByUserHandler))
 
 	if len(os.Args) < 2 {
diff --git a/sql/queries/feleteFeedFollow.sql b/sql/queries/feleteFeedFollow.sql
new file mode 100644
index 0000000..ca67a3a
--- /dev/null
+++ b/sql/queries/feleteFeedFollow.sql
@@ -0,0 +1,2 @@
+-- name: DeleteFeedFollow :exec
+DELETE FROM feed_follows WHERE feed_follows.user_id  = $1 AND feed_follows.feed_id = (SELECT id FROM feeds WHERE url = $2);
\ No newline at end of file