62 lines
2.7 KiB
PL/PgSQL
62 lines
2.7 KiB
PL/PgSQL
-- Read through the server only: never expose session secrets or round answers.
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create index game_sessions_leaderboard_idx
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on public.game_sessions (difficulty, owner_id)
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where current_round = 5 and owner_id is not null;
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create function public.player_leaderboard(
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p_difficulty text default 'all',
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p_search text default '',
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p_page integer default 1,
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p_limit integer default 25
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) returns jsonb
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language sql stable security invoker set search_path = '' as $$
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with completed as (
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select s.id, s.owner_id, sum((r.result->>'score')::integer) as score
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from public.game_sessions s
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join public.game_rounds r on r.session_id = s.id
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where s.current_round = 5 and s.owner_id is not null
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and (p_difficulty = 'all' or s.difficulty = p_difficulty)
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group by s.id, s.owner_id
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having count(*) = 5 and count(r.result) = 5
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), players as (
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select p.id as player_id, p.display_name,
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max(c.score) as best_score, avg(c.score) as average_score,
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count(*) as games_played
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from completed c join public.profiles p on p.id = c.owner_id
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group by p.id, p.display_name
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), ranked as (
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select row_number() over (
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order by best_score desc, average_score desc, games_played desc, player_id
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) as rank, player_id, display_name, best_score,
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round(average_score)::integer as average_score, games_played
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from players
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), matched as (
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select * from ranked
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where strpos(lower(display_name), lower(left(trim(coalesce(p_search, '')), 64))) > 0
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), settings as (
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select greatest(1, least(coalesce(p_limit, 25), 100)) as page_size
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), counts as (
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select (select count(*) from matched) as matching_players,
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greatest(1, ceil((select count(*) from matched)::numeric / settings.page_size)::integer) as pages
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from settings
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), pagination as (
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select *, greatest(1, least(coalesce(p_page, 1), pages)) as page
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from counts cross join settings
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), entries as (
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select * from matched order by rank
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limit (select page_size from pagination)
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offset (select (page - 1) * page_size from pagination)
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)
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select jsonb_build_object(
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'entries', coalesce((select jsonb_agg(to_jsonb(e) order by rank) from entries e), '[]'::jsonb),
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'leaders', coalesce((select jsonb_agg(to_jsonb(r) order by rank) from
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(select * from ranked order by rank limit 3) r), '[]'::jsonb),
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'total_players', (select count(*) from ranked),
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'total_games', (select count(*) from completed),
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'matching_players', matching_players, 'page', page, 'pages', pages
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) from pagination;
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$$;
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revoke all on function public.player_leaderboard(text, text, integer, integer) from public, anon, authenticated;
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grant execute on function public.player_leaderboard(text, text, integer, integer) to service_role;
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