Add map community reactions, comments, and moderation

supabase/migrations/20261017073500_map_community_features.sql

@@ -0,0 +1,66 @@
+-- All access goes through authenticated server routes using the service client.
+create table public.map_reactions (
+  dataset_id uuid not null references public.datasets(id) on delete cascade,
+  user_id uuid not null references public.profiles(id) on delete cascade,
+  value smallint not null check (value in (-1, 1)),
+  created_at timestamptz not null default now(),
+  primary key (dataset_id, user_id)
+);
+create index map_reactions_user on public.map_reactions(user_id);
+create index map_reactions_totals on public.map_reactions(dataset_id, value);
+
+create table public.map_comments (
+  id uuid primary key default gen_random_uuid(),
+  dataset_id uuid not null references public.datasets(id) on delete cascade,
+  author_id uuid references public.profiles(id) on delete set null,
+  body text not null check (body = btrim(body) and char_length(body) between 1 and 2000),
+  created_at timestamptz not null default now(),
+  removed_at timestamptz,
+  removed_by uuid references public.profiles(id) on delete set null
+);
+create index map_comments_dataset_created on public.map_comments(dataset_id, created_at desc, id desc);
+create index map_comments_author on public.map_comments(author_id);
+create index map_comments_removed_by on public.map_comments(removed_by);
+
+create table public.community_reports (
+  id uuid primary key default gen_random_uuid(),
+  reporter_id uuid references public.profiles(id) on delete set null,
+  target text not null check (target in ('comment', 'account')),
+  comment_id uuid references public.map_comments(id) on delete cascade,
+  account_id uuid references public.profiles(id) on delete cascade,
+  category text not null check (category in ('spam', 'advertising', 'inappropriate', 'harassment', 'other')),
+  reason text not null check (reason = btrim(reason) and char_length(reason) between 10 and 2000),
+  state text not null default 'open' check (state in ('open', 'resolved', 'dismissed')),
+  reviewer_id uuid references public.profiles(id) on delete set null,
+  reviewed_at timestamptz,
+  review_reason text check (char_length(review_reason) <= 2000),
+  created_at timestamptz not null default now(),
+  constraint community_reports_target_link check (
+    (target = 'comment' and comment_id is not null and account_id is null)
+    or (target = 'account' and account_id is not null and comment_id is null)
+  )
+);
+create unique index community_reports_open_comment on public.community_reports(reporter_id, comment_id)
+  where state = 'open' and target = 'comment';
+create unique index community_reports_open_account on public.community_reports(reporter_id, account_id)
+  where state = 'open' and target = 'account';
+create index community_reports_queue on public.community_reports(state, created_at desc);
+create index community_reports_reporter on public.community_reports(reporter_id);
+create index community_reports_comment on public.community_reports(comment_id);
+create index community_reports_account on public.community_reports(account_id);
+create index community_reports_reviewer on public.community_reports(reviewer_id);
+
+alter table public.map_reactions enable row level security;
+alter table public.map_comments enable row level security;
+alter table public.community_reports enable row level security;
+revoke all on public.map_reactions, public.map_comments, public.community_reports from public, anon, authenticated;
+grant all on public.map_reactions, public.map_comments, public.community_reports to service_role;
+
+create function public.map_reaction_summary(p_dataset uuid)
+returns table (likes bigint, dislikes bigint)
+language sql stable security invoker set search_path = '' as $$
+  select count(*) filter (where value = 1), count(*) filter (where value = -1)
+  from public.map_reactions where dataset_id = p_dataset;
+$$;
+revoke all on function public.map_reaction_summary(uuid) from public, anon, authenticated;
+grant execute on function public.map_reaction_summary(uuid) to service_role;