Introduce uidStatus view for external provider

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/Keys.sq

@@ -36,6 +36,12 @@ UPDATE keys
     SET has_secret = ?2
     WHERE key_id = ?1;
 
+validKeysView:
+CREATE VIEW validMasterKeys AS
+SELECT *
+    FROM keys
+    WHERE rank = 0 AND is_revoked = 0 AND is_secure = 1 AND (expiry IS NULL OR expiry >= strftime('%s', 'now'));
+
 unifiedKeyView:
 CREATE VIEW unifiedKeyView AS
     SELECT keys.master_key_id, keys.fingerprint, MIN(user_packets.rank), user_packets.user_id, user_packets.name, user_packets.email, user_packets.comment, keys.creation, keys.expiry, keys.is_revoked, keys.is_secure, keys.can_certify, certs.verified,

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/UserPackets.sq

@@ -49,3 +49,23 @@ SELECT user_packets.master_key_id, user_packets.rank, attribute_data, is_primary
         LEFT JOIN certs ON ( user_packets.master_key_id = certs.master_key_id AND user_packets.rank = certs.rank AND certs.verified > 0 )
     WHERE user_packets.type = ? AND user_packets.master_key_id = ? AND user_packets.rank = ?
     GROUP BY user_packets.master_key_id, user_packets.rank;
+
+
+uidStatus:
+CREATE VIEW uidStatus AS
+    SELECT user_packets.email, MIN(certs.verified) AS key_status_int, user_packets.user_id, user_packets.master_key_id, COUNT(DISTINCT user_packets.master_key_id) AS candidates
+    FROM user_packets
+        JOIN validMasterKeys USING (master_key_id)
+        LEFT JOIN certs ON (certs.master_key_id = user_packets.master_key_id AND certs.rank = user_packets.rank AND certs.verified > 0)
+    WHERE user_packets.email IS NOT NULL
+    GROUP BY user_packets.email;
+
+selectUserIdStatusByEmail:
+SELECT *
+FROM uidStatus
+    WHERE email IN ?;
+
+selectUserIdStatusByEmailLike:
+SELECT *
+FROM uidStatus
+    WHERE email LIKE ?;