-- =============================================================
-- Contacts: support multiple mobile numbers (a person may have several)
-- Tables:
--   1) yz_backend_crm_entity_contact : contacts of clue / business / project
--   2) yz_backend_erp_contact        : global address book contacts
--   3) yz_backend_contact_company    : company contacts (customers/suppliers),
--      shared by project contact picker / address book / customer-supplier
--      conversion. This one was missed before: without the column any SELECT
--      fails and contact lists show as empty (fixed by the server-side
--      migration EnsureErpCompanyContactMobilesColumn on startup).
-- All tables get a new column `mobiles` (TEXT, JSON array, max 5).
-- The old `mobile` / `phone` column keeps the FIRST number for backward
-- compatibility (list display, phone-based dedupe on sync), and existing
-- single numbers are backfilled into `mobiles`.
-- Run: mysql -h<host> -P<port> -u<user> -p <db> < alter_contact_mobiles.sql
--      (re-running only reports "Duplicate column name", which is safe)
-- NOTE: keep this file ASCII-only; piping through some shells mangles non-ASCII.
-- =============================================================

-- 1) clue / business / project contacts
ALTER TABLE `yz_backend_crm_entity_contact`
  ADD COLUMN `mobiles` TEXT NULL COMMENT 'phones in JSON array, max 5' AFTER `mobile`;

-- backfill existing single number as a one-element JSON array
UPDATE `yz_backend_crm_entity_contact`
   SET `mobiles` = JSON_ARRAY(`mobile`)
 WHERE (`mobiles` IS NULL OR `mobiles` = '')
   AND `mobile` IS NOT NULL AND `mobile` <> '';

-- 2) global address book contacts
ALTER TABLE `yz_backend_erp_contact`
  ADD COLUMN `mobiles` TEXT NULL COMMENT 'phones in JSON array, max 5' AFTER `phone`;

UPDATE `yz_backend_erp_contact`
   SET `mobiles` = JSON_ARRAY(`phone`)
 WHERE (`mobiles` IS NULL OR `mobiles` = '')
   AND `phone` IS NOT NULL AND `phone` <> '';

-- 3) company contacts (customers / suppliers) - shared by project contact
--    picker / address book / customer-supplier conversion.
--    NOTE: also auto-added on server startup (EnsureErpCompanyContactMobilesColumn).
ALTER TABLE `yz_backend_contact_company`
  ADD COLUMN `mobiles` TEXT NULL COMMENT 'phones in JSON array, max 5' AFTER `phone`;

UPDATE `yz_backend_contact_company`
   SET `mobiles` = JSON_ARRAY(`phone`)
 WHERE (`mobiles` IS NULL OR `mobiles` = '')
   AND `phone` IS NOT NULL AND `phone` <> '';