CREATE OR REPLACE VIEW optimized_recent_activity AS
WITH activity_data AS (
  SELECT
    p.date AS content_date,
    p.title,
    p.content AS description,
    p.url AS url,
    NULL AS author,
    NULL AS image,
    NULL AS rating,
    NULL AS artist_url,
    NULL AS venue_lat,
    NULL AS venue_lon,
    NULL AS venue_name,
    NULL AS notes,
    'article' AS type,
    'Post' AS label
  FROM optimized_posts p

  UNION ALL

  SELECT
    l.date AS content_date,
    l.title,
    l.description,
    l.link AS url,
    l.author,
    NULL AS image,
    NULL AS rating,
    NULL AS artist_url,
    NULL AS venue_lat,
    NULL AS venue_lon,
    NULL AS venue_name,
    NULL AS notes,
    'link' AS type,
    'Link' AS label
  FROM optimized_links l

  UNION ALL

  SELECT
    b.date_finished AS content_date,
    CONCAT(b.title,
      CASE WHEN b.rating IS NOT NULL THEN CONCAT(' (', b.rating, ')') ELSE '' END
    ) AS title,
    b.description,
    b.url AS url,
    NULL AS author,
    b.image,
    b.rating,
    NULL AS artist_url,
    NULL AS venue_lat,
    NULL AS venue_lon,
    NULL AS venue_name,
    NULL AS notes,
    'books' AS type,
    'Book' AS label
  FROM optimized_books b
  WHERE LOWER(b.status) = 'finished'

  UNION ALL

  SELECT
    m.last_watched AS content_date,
    CONCAT(m.title,
      CASE WHEN m.rating IS NOT NULL THEN CONCAT(' (', m.rating, ')') ELSE '' END
    ) AS title,
    m.description,
    m.url AS url,
    NULL AS author,
    m.image,
    m.rating,
    NULL AS artist_url,
    NULL AS venue_lat,
    NULL AS venue_lon,
    NULL AS venue_name,
    NULL AS notes,
    'movies' AS type,
    'Movie' AS label
  FROM optimized_movies m
  WHERE m.last_watched IS NOT NULL

  UNION ALL

  SELECT
    c.date AS content_date,
    CONCAT(c.artist->>'name', ' at ', c.venue->>'name_short') AS title,
    c.concert_notes AS description,
    NULL AS url,
    NULL AS author,
    NULL AS image,
    NULL AS rating,
    c.artist->>'url' AS artist_url,
    c.venue->>'latitude' AS venue_lat,
    c.venue->>'longitude' AS venue_lon,
    c.venue->>'name_short' AS venue_name,
    c.notes AS notes,
    'concerts' AS type,
    'Concert' AS label
  FROM optimized_concerts c
)
SELECT json_agg(recent_activity_data ORDER BY recent_activity_data.content_date DESC) AS feed
FROM (
  SELECT *
  FROM activity_data
  WHERE content_date IS NOT NULL
  ORDER BY content_date DESC
  LIMIT 20
) AS recent_activity_data;