feat: implement feed agg and browse

sql/queries/feeds.sql

@@ -1,18 +1,28 @@
 -- name: CreateFeed :one
-INSERT INTO feeds (id, created_at, updated_at, name, url, user_id)
+INSERT INTO feeds (id, created_at, updated_at, name, url, user_id, last_fetched_at)
 VALUES (
   $1,
   $2,
   $3,
   $4,
   $5,
-  $6
+  $6,
+  $7
 )
 RETURNING *;
 
 -- name: GetAllFeeds :many
-SELECT id, created_at, updated_at, name, url, user_id FROM feeds;
+SELECT id, created_at, updated_at, name, url, user_id, last_fetched_at FROM feeds;
 
 -- name: GetFeedByUrl :one
-SELECT id, created_at, updated_at, name, url, user_id FROM feeds
+SELECT id, created_at, updated_at, name, url, user_id, last_fetched_at FROM feeds
 WHERE url = $1;
+
+-- name: GetNextFeedToFetch :one
+SELECT id, created_at, updated_at, name, url, user_id, last_fetched_at FROM feeds
+ORDER BY last_fetched_at ASC NULLS FIRST;
+
+-- name: MarkFeedAsFetched :exec
+UPDATE feeds
+SET last_fetched_at = $1
+WHERE feeds.id = $2;

sql/queries/posts.sql

@@ -0,0 +1,33 @@
+-- name: CreatePost :one
+INSERT INTO posts (id, created_at, updated_at, title, url, description, published_at, feed_id)
+VALUES (
+  $1,
+  $2,
+  $3,
+  $4,
+  $5,
+  $6,
+  $7,
+  $8
+)
+RETURNING *;
+
+-- name: GetPostsForUser :many
+SELECT 
+  posts.id, 
+  posts.created_at, 
+  posts.updated_at, 
+  posts.title, 
+  posts.url, 
+  posts.description, 
+  posts.published_at, 
+  posts.feed_id,
+  feeds.name as feed_name
+FROM posts
+INNER JOIN feeds
+  ON posts.feed_id = feeds.id
+INNER JOIN follows
+  ON posts.feed_id = follows.feed_id
+WHERE follows.user_id = $1
+ORDER BY posts.published_at DESC, posts.title ASC
+LIMIT $2;

sql/schema/004_lastfetchedat.sql

@@ -0,0 +1,8 @@
+-- +goose Up
+ALTER TABLE feeds
+ADD COLUMN last_fetched_at TIMESTAMP NULL;
+
+-- +goose Down
+ALTER TABLE feeds
+DROP COLUMN last_fetched_at;
+

sql/schema/005_posts.sql

@@ -0,0 +1,16 @@
+-- +goose Up
+CREATE TABLE posts (
+  id UUID PRIMARY KEY,
+  created_at TIMESTAMP NOT NULL,
+  updated_at TIMESTAMP NOT NULL,
+  title TEXT NOT NULL,
+  url TEXT NOT NULL,
+  description TEXT NOT NULL,
+  published_at TIMESTAMP NULL,
+  feed_id UUID NOT NULL,
+  FOREIGN KEY(feed_id) REFERENCES feeds(id) ON DELETE CASCADE,
+  CONSTRAINT unique_url UNIQUE(url)
+);
+
+-- +goose Down
+DROP TABLE posts;