INSERT INTO custom_attribute_definitions (
    account_id,
    attribute_name,
    attribute_display_name,
    attribute_type,
    attribute_model,
    description,
    created_at,
    updated_at
)
SELECT
    accounts.id,
    'swt_environment_version',
    '环境协议版本',
    'text',
    'contact_attribute',
    '商务通 kind=7 环境信息格式版本；不是网络运营商',
    CURRENT_TIMESTAMP,
    CURRENT_TIMESTAMP
FROM accounts
WHERE NOT EXISTS (
    SELECT 1
    FROM custom_attribute_definitions existing
    WHERE existing.account_id = accounts.id
      AND existing.attribute_name = 'swt_environment_version'
      AND existing.attribute_model = 'contact_attribute'
      AND existing.deleted_at IS NULL
);

DELETE FROM custom_attribute_definitions
WHERE attribute_name = 'swt_isp'
  AND attribute_model = 'contact_attribute';

WITH swt_contacts AS (
    SELECT DISTINCT contacts.id
    FROM contacts
    JOIN contact_inboxes ON contact_inboxes.contact_id = contacts.id
    JOIN inboxes ON inboxes.id = contact_inboxes.inbox_id
    WHERE inboxes.channel_type = 'shangwutong'
), source AS (
    SELECT
        contacts.id,
        COALESCE(
            NULLIF(contacts.custom_attributes->>'swt_user_agent', ''),
            NULLIF(contacts.additional_attributes->>'swt_user_agent', ''),
            NULLIF(contacts.custom_attributes->>'swt_os', ''),
            NULLIF(contacts.additional_attributes->>'swt_os', '')
        ) AS user_agent,
        COALESCE(
            NULLIF(contacts.custom_attributes->>'swt_environment_version', ''),
            NULLIF(contacts.custom_attributes->>'swt_isp', ''),
            NULLIF(contacts.additional_attributes->>'swt_environment_version', ''),
            NULLIF(contacts.additional_attributes->>'swt_isp', '')
        ) AS environment_version
    FROM contacts
    JOIN swt_contacts ON swt_contacts.id = contacts.id
), parsed AS (
    SELECT
        id,
        user_agent,
        environment_version,
        CASE
            WHEN user_agent ~ 'OpenHarmony[[:space:]]+[0-9.]+'
                THEN 'OpenHarmony ' || substring(user_agent FROM 'OpenHarmony[[:space:]]+([0-9.]+)')
            WHEN user_agent ~ 'Android[[:space:]]+[^;]+'
                THEN 'Android ' || BTRIM(substring(user_agent FROM 'Android[[:space:]]+([^;]+)'))
            WHEN user_agent ~ 'iPhone OS[[:space:]]+[0-9_]+'
                THEN 'iOS ' || replace(substring(user_agent FROM 'iPhone OS[[:space:]]+([0-9_]+)'), '_', '.')
            WHEN user_agent LIKE '%Windows NT 10.0%'
                THEN 'Windows 10/11'
            WHEN user_agent LIKE '%Windows%'
                THEN 'Windows'
            WHEN user_agent ~ 'Mac OS X[[:space:]]+[0-9_]+'
                THEN 'macOS ' || replace(substring(user_agent FROM 'Mac OS X[[:space:]]+([0-9_]+)'), '_', '.')
            WHEN user_agent LIKE '%Linux%'
                THEN 'Linux'
        END AS operating_system,
        CASE
            WHEN user_agent LIKE '%OpenHarmony%'
                THEN BTRIM(split_part(user_agent, ';', 1))
            WHEN user_agent ~ 'Android[[:space:]]+[^;]+;[[:space:]]*[^;]+ Build/'
                THEN BTRIM(substring(user_agent FROM 'Android[[:space:]]+[^;]+;[[:space:]]*([^;]+) Build/'))
            WHEN user_agent LIKE '%Android%'
                THEN 'Android 设备'
            WHEN user_agent LIKE '%iPhone OS%'
                THEN 'iPhone'
            WHEN user_agent LIKE '%Windows%'
                THEN 'Windows PC'
            WHEN user_agent LIKE '%Mac OS X%'
                THEN 'Mac'
            WHEN user_agent LIKE '%Linux%'
                THEN 'Linux 设备'
        END AS device
    FROM source
)
UPDATE contacts
SET
    custom_attributes = (
        COALESCE(contacts.custom_attributes, '{}'::jsonb) - 'swt_isp' - 'swt_color_depth'
    ) || jsonb_strip_nulls(jsonb_build_object(
        'swt_environment_version', parsed.environment_version,
        'swt_user_agent', parsed.user_agent,
        'swt_os', parsed.operating_system,
        'swt_device', parsed.device
    )),
    additional_attributes = (
        COALESCE(contacts.additional_attributes, '{}'::jsonb) - 'swt_isp' - 'swt_color_depth'
    ) || jsonb_strip_nulls(jsonb_build_object(
        'swt_environment_version', parsed.environment_version,
        'swt_user_agent', parsed.user_agent,
        'swt_os', parsed.operating_system,
        'swt_device', parsed.device
    )),
    updated_at = CURRENT_TIMESTAMP
FROM parsed
WHERE contacts.id = parsed.id;