feat(labrinth): hide orgs without a purpose, re-enable organization creation (#4426)

* chore(labrinth): set `DELPHI_URL` to a valid default in `.env.local`

* feat(labrinth): make orgs not publicly visible until they meet some conditions

* Revert "Org disabled frontend (#4424)"

This reverts commit 2492b11ec0.

* changelog: update for re-enabling organization creation

* chore: run `sqlx prepare`

* chore(labrinth): tweak tests to work with new org changes

* tweak: apply @triphora's suggestion

Co-authored-by: Emma Alexia <emma@modrinth.com>
Signed-off-by: Alejandro González <7822554+AlexTMjugador@users.noreply.github.com>

* tweak: document `is_visible_organization` relationship with `Project#is_searchable`

---------

Signed-off-by: Alejandro González <7822554+AlexTMjugador@users.noreply.github.com>
Co-authored-by: Emma Alexia <emma@modrinth.com>

apps/labrinth/src/auth/checks.rs

@@ -1,11 +1,12 @@
 use crate::database;
-use crate::database::models::DBCollection;
 use crate::database::models::project_item::ProjectQueryResult;
 use crate::database::models::version_item::VersionQueryResult;
+use crate::database::models::{DBCollection, DBOrganization, DBTeamMember};
 use crate::database::redis::RedisPool;
 use crate::database::{DBProject, DBVersion, models};
 use crate::models::users::User;
 use crate::routes::ApiError;
+use futures::TryStreamExt;
 use itertools::Itertools;
 use sqlx::PgPool;
 
@@ -132,8 +133,6 @@ pub async fn filter_enlisted_projects_ids(
     if let Some(user) = user_option {
         let user_id: models::ids::DBUserId = user.id.into();
 
-        use futures::TryStreamExt;
-
         sqlx::query!(
             "
             SELECT m.id id, m.team_id team_id FROM team_members tm
@@ -364,3 +363,36 @@ pub async fn filter_visible_collections(
 
     Ok(return_collections)
 }
+
+pub async fn is_visible_organization(
+    organization: &DBOrganization,
+    viewing_user: &Option<User>,
+    pool: &PgPool,
+    redis: &RedisPool,
+) -> Result<bool, ApiError> {
+    let members =
+        DBTeamMember::get_from_team_full(organization.team_id, pool, redis)
+            .await?;
+
+    // This is meant to match the same projects as the `Project::is_searchable` method, but we're not using
+    // it here because that'd entail pulling in all projects for the organization
+    let has_searchable_projects = sqlx::query_scalar!(
+        "SELECT TRUE FROM mods WHERE organization_id = $1 AND status IN ('public', 'archived') LIMIT 1",
+        organization.id as database::models::ids::DBOrganizationId
+    )
+    .fetch_optional(pool)
+    .await?
+    .flatten()
+    .unwrap_or(false);
+
+    let visible = has_searchable_projects
+        || members.iter().filter(|member| member.accepted).count() > 1
+        || viewing_user.as_ref().is_some_and(|viewing_user| {
+            viewing_user.role.is_mod()
+                || members
+                    .iter()
+                    .any(|member| member.user_id == viewing_user.id.into())
+        });
+
+    Ok(visible)
+}