DO $$
DECLARE
    target_table text;
    target_column text;
BEGIN
    FOR target_table, target_column IN
        SELECT * FROM (VALUES
            ('agent_bots', 'secret'), ('agent_bots', 'access_token'),
            ('inboxes', 'secret'), ('integration_hooks', 'access_token'),
            ('webhook_subscriptions', 'secret'), ('users', 'totp_secret'),
            ('channel_api', 'secret'), ('channel_api', 'hmac_token'),
            ('channel_facebook_pages', 'page_access_token'), ('channel_facebook_pages', 'user_access_token'),
            ('channel_facebook_pages', 'webhook_verify_token'), ('channel_instagrams', 'page_access_token'),
            ('channel_tiktoks', 'access_token'), ('channel_tiktoks', 'refresh_token'),
            ('channel_tiktoks', 'webhook_verify_token'), ('channel_whatsapps', 'access_token'),
            ('channel_whatsapps', 'provider_config'), ('channel_whatsapps', 'webhook_verify_token'),
            ('channel_emails', 'imap_password'), ('channel_emails', 'smtp_password'),
            ('channel_web_widgets', 'hmac_token')
        ) AS fields(table_name, column_name)
    LOOP
        IF EXISTS (
            SELECT 1 FROM information_schema.columns
            WHERE table_schema = current_schema() AND table_name = target_table AND column_name = target_column
        ) THEN
            EXECUTE format('ALTER TABLE %I ALTER COLUMN %I TYPE text', target_table, target_column);
        END IF;
    END LOOP;
END $$;

ALTER TABLE IF EXISTS channel_whatsapps ADD COLUMN IF NOT EXISTS provider_config text;
ALTER TABLE IF EXISTS channel_whatsapps ADD COLUMN IF NOT EXISTS webhook_verify_token_digest varchar(64);
DO $$
BEGIN
    IF to_regclass('channel_whatsapps') IS NOT NULL THEN
        CREATE INDEX IF NOT EXISTS idx_channel_whatsapps_webhook_verify_token_digest
            ON channel_whatsapps (webhook_verify_token_digest);
    END IF;
END $$;