from . import models
from . import wizard
from odoo import api, SUPERUSER_ID

def _auto_share_accounts_post_init(env):
    """
    Automatically link accounts from the Parent Company (ID 2 - OT) to any Branch Company 
    that does not have its own Chart of Accounts.
    """
    # Link Parent Company (ID 2) accounts to other companies if they don't have their own COA
    env.cr.execute("""
        INSERT INTO account_account_res_company_rel (account_id, company_id)
        SELECT a.id, c.id
        FROM account_account a
        CROSS JOIN res_company c
        WHERE a.company_id = 2
          AND c.id != 2
          AND NOT EXISTS (
              SELECT 1 FROM account_account_res_company_rel r 
              WHERE r.account_id = a.id AND r.company_id = c.id
          )
          AND NOT EXISTS (
              SELECT 1 FROM account_account a2 
              WHERE a2.company_id = c.id
          )
        ON CONFLICT DO NOTHING
    """)
    
    # Set a dummy chart template for branches to satisfy Odoo 19 POS validation
    env.cr.execute("""
        UPDATE res_company 
        SET chart_template = 'id' 
        WHERE id != 2 AND chart_template IS NULL
    """)

def _cleanup_shared_accounts_uninstall(env):
    """
    Remove the shared account relations upon uninstallation to prevent 
    UserErrors when Odoo's standard company consistency checks are restored.
    """
    env.cr.execute("""
        DELETE FROM account_account_res_company_rel
        WHERE company_id != 2
          AND account_id IN (SELECT id FROM account_account WHERE company_id = 2)
    """)