feat: added new commands

- added follow command
- added unfollow command
- following command
- introduced logged in user middleware

internal/database/feeds.sql.go

@@ -88,3 +88,22 @@ func (q *Queries) GetAllFeeds(ctx context.Context) ([]Feed, error) {
 	}
 	return items, nil
 }
+
+const getFeedByUrl = `-- name: GetFeedByUrl :one
+SELECT id, created_at, updated_at, name, url, user_id FROM feeds
+WHERE url = $1
+`
+
+func (q *Queries) GetFeedByUrl(ctx context.Context, url string) (Feed, error) {
+	row := q.db.QueryRowContext(ctx, getFeedByUrl, url)
+	var i Feed
+	err := row.Scan(
+		&i.ID,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.Name,
+		&i.Url,
+		&i.UserID,
+	)
+	return i, err
+}

internal/database/follows.sql.go

@@ -0,0 +1,135 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+// source: follows.sql
+
+package database
+
+import (
+	"context"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+const createFollow = `-- name: CreateFollow :one
+WITH inserted_follow as (
+  INSERT INTO follows (id, created_at, updated_at, feed_id, user_id)
+  VALUES (
+    $1,
+    $2,
+    $3,
+    $4,
+    $5
+  )
+  RETURNING id, created_at, updated_at, user_id, feed_id
+)
+SELECT inserted_follow.id, inserted_follow.created_at, inserted_follow.updated_at, inserted_follow.user_id, inserted_follow.feed_id,
+  feeds.name as feed_name,
+  users.name as user_name
+FROM inserted_follow
+INNER JOIN users
+  ON inserted_follow.user_id = users.id
+INNER JOIN feeds
+  ON inserted_follow.feed_id = feeds.id
+`
+
+type CreateFollowParams struct {
+	ID        uuid.UUID
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	FeedID    uuid.UUID
+	UserID    uuid.UUID
+}
+
+type CreateFollowRow struct {
+	ID        uuid.UUID
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	UserID    uuid.UUID
+	FeedID    uuid.UUID
+	FeedName  string
+	UserName  string
+}
+
+func (q *Queries) CreateFollow(ctx context.Context, arg CreateFollowParams) (CreateFollowRow, error) {
+	row := q.db.QueryRowContext(ctx, createFollow,
+		arg.ID,
+		arg.CreatedAt,
+		arg.UpdatedAt,
+		arg.FeedID,
+		arg.UserID,
+	)
+	var i CreateFollowRow
+	err := row.Scan(
+		&i.ID,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.UserID,
+		&i.FeedID,
+		&i.FeedName,
+		&i.UserName,
+	)
+	return i, err
+}
+
+const deleteFollowForUser = `-- name: DeleteFollowForUser :exec
+DELETE FROM follows
+WHERE feed_id = $1 AND user_id = $2
+`
+
+type DeleteFollowForUserParams struct {
+	FeedID uuid.UUID
+	UserID uuid.UUID
+}
+
+func (q *Queries) DeleteFollowForUser(ctx context.Context, arg DeleteFollowForUserParams) error {
+	_, err := q.db.ExecContext(ctx, deleteFollowForUser, arg.FeedID, arg.UserID)
+	return err
+}
+
+const getFollowsForUser = `-- name: GetFollowsForUser :many
+SELECT follows.id, follows.created_at, follows.updated_at, follows.user_id, follows.feed_id, feeds.name as feed_name FROM follows
+INNER JOIN feeds
+  ON follows.feed_id = feeds.id
+WHERE follows.user_id = $1
+`
+
+type GetFollowsForUserRow struct {
+	ID        uuid.UUID
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	UserID    uuid.UUID
+	FeedID    uuid.UUID
+	FeedName  string
+}
+
+func (q *Queries) GetFollowsForUser(ctx context.Context, userID uuid.UUID) ([]GetFollowsForUserRow, error) {
+	rows, err := q.db.QueryContext(ctx, getFollowsForUser, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []GetFollowsForUserRow
+	for rows.Next() {
+		var i GetFollowsForUserRow
+		if err := rows.Scan(
+			&i.ID,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+			&i.UserID,
+			&i.FeedID,
+			&i.FeedName,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}

internal/database/models.go

@@ -19,6 +19,14 @@ type Feed struct {
 	UserID    uuid.UUID
 }
 
+type Follow struct {
+	ID        uuid.UUID
+	CreatedAt time.Time
+	UpdatedAt time.Time
+	UserID    uuid.UUID
+	FeedID    uuid.UUID
+}
+
 type User struct {
 	ID        uuid.UUID
 	CreatedAt time.Time