"""Reports data adapter.

Routes report-data lookups across:
- FUSION:     fusion.account.report (added by fusion_accounting_reports, Phase 2)
- ENTERPRISE: account.report from account_reports
- COMMUNITY:  raw aggregations on account.move.line
"""

from .base import DataAdapter
from ._registry import register_adapter


class ReportsAdapter(DataAdapter):
    FUSION_MODEL = 'fusion.account.report'
    ENTERPRISE_MODULE = 'account_reports'

    def trial_balance(self, date_to=None, company_ids=None):
        return self._dispatch('trial_balance', date_to=date_to, company_ids=company_ids)

    def trial_balance_via_fusion(self, date_to=None, company_ids=None):
        # Phase 2 will implement; for now defer to community.
        return self.trial_balance_via_community(date_to=date_to, company_ids=company_ids)

    def trial_balance_via_enterprise(self, date_to=None, company_ids=None):
        # Enterprise account_reports has rich filters; for AI-tool consumption,
        # the community shape suffices and avoids brittle coupling to Odoo's
        # report-line internals.
        return self.trial_balance_via_community(date_to=date_to, company_ids=company_ids)

    def trial_balance_via_community(self, date_to=None, company_ids=None):
        domain = [('parent_state', '=', 'posted')]
        if date_to:
            domain.append(('date', '<=', date_to))
        if company_ids:
            domain.append(('company_id', 'in', list(company_ids)))

        Line = self.env['account.move.line'].sudo()
        groups = Line._read_group(
            domain=domain,
            groupby=['account_id'],
            aggregates=['debit:sum', 'credit:sum'],
        )
        return [
            {
                'account_id': account.id,
                'account_code': account.code,
                'account_name': account.name,
                'debit': debit_sum,
                'credit': credit_sum,
                'balance': debit_sum - credit_sum,
            }
            for account, debit_sum, credit_sum in groups
        ]


register_adapter('reports', ReportsAdapter)