Domain block (#76)

* start work on admin domain blocking

* move stuff around + further work on domain blocks

* move + restructure processor

* prep work for deleting account

* tidy

* go fmt

* formatting

* domain blocking more work

* check domain blocks way earlier on

* progress on delete account

* delete more stuff when an account is gone

* and more...

* domain blocky block block

* get individual domain block, delete a block

internal/db/pg/instancestats.go

@@ -1,52 +0,0 @@
-package pg
-
-import (
-	"github.com/go-pg/pg/v10"
-	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
-)
-
-func (ps *postgresService) GetUserCountForInstance(domain string) (int, error) {
-	q := ps.conn.Model(&[]*gtsmodel.Account{})
-
-	if domain == ps.config.Host {
-		// if the domain is *this* domain, just count where the domain field is null
-		q = q.Where("? IS NULL", pg.Ident("domain"))
-	} else {
-		q = q.Where("domain = ?", domain)
-	}
-
-	// don't count the instance account or suspended users
-	q = q.Where("username != ?", domain).Where("? IS NULL", pg.Ident("suspended_at"))
-
-	return q.Count()
-}
-
-func (ps *postgresService) GetStatusCountForInstance(domain string) (int, error) {
-	q := ps.conn.Model(&[]*gtsmodel.Status{})
-
-	if domain == ps.config.Host {
-		// if the domain is *this* domain, just count where local is true
-		q = q.Where("local = ?", true)
-	} else {
-		// join on the domain of the account
-		q = q.Join("JOIN accounts AS account ON account.id = status.account_id").
-			Where("account.domain = ?", domain)
-	}
-
-	return q.Count()
-}
-
-func (ps *postgresService) GetDomainCountForInstance(domain string) (int, error) {
-	q := ps.conn.Model(&[]*gtsmodel.Instance{})
-
-	if domain == ps.config.Host {
-		// if the domain is *this* domain, just count other instances it knows about
-		// TODO: exclude domains that are blocked or silenced
-		q = q.Where("domain != ?", domain)
-	} else {
-		// TODO: implement federated domain counting properly for remote domains
-		return 0, nil
-	}
-
-	return q.Count()
-}