[ALS-5612] Create stored procedure to create a user

pic-sure-auth-db/db/sql/V4__ADD_CREATE_USER_STORED_PROCEDURE.sql

@@ -0,0 +1,31 @@
+USE `auth`;
+
+DROP PROCEDURE IF EXISTS CreateUserWithRole;
+DELIMITER //
+CREATE PROCEDURE CreateUserWithRole (
+    IN user_email VARCHAR(255),
+    IN connection_id VARCHAR(255),
+    IN role_name VARCHAR(255)
+)
+BEGIN
+    -- Attempt to retrieve the UUIDs for the user and role based on the provided information
+SELECT @userUUID := uuid FROM auth.user WHERE email = user_email AND connectionId = connection_id;
+SELECT @roleUUID := uuid FROM auth.role WHERE name = role_name;
+
+-- If the user does not exist, create a new user entry
+IF @userUUID IS NULL THEN
+        -- Generate a new UUID for the user
+        SET @userUUID = UNHEX(REPLACE(UUID(), '-', ''));
+        -- Retrieve the UUID for the connection
+SELECT @connectionUUID := uuid FROM auth.connection WHERE id = connection_id;
+-- Insert the new user record into the user table
+INSERT INTO auth.user (uuid, general_metadata, acceptedTOS, connectionId, email, matched, subject, is_active, long_term_token)
+VALUES (@userUUID, NULL, CURRENT_TIMESTAMP, @connectionUUID, user_email, 0, NULL, 1, NULL);
+END IF;
+
+    -- If the role exists, associate the user with the role
+    IF @roleUUID IS NOT NULL THEN
+        INSERT INTO auth.user_role (user_id, role_id) VALUES (@userUUID, @roleUUID);
+END IF;
+END//
+DELIMITER ;