"""Bank reconciliation data adapter.

Routes bank-rec data lookups across:
- FUSION:    fusion.bank.rec.widget (added by fusion_accounting_bank_rec, Phase 1)
- ENTERPRISE: account_accountant's bank_rec_widget JS service
- COMMUNITY: pure search on account.bank.statement.line
"""

from .base import DataAdapter
from ._registry import register_adapter


class BankRecAdapter(DataAdapter):
    FUSION_MODEL = 'fusion.bank.rec.widget'
    ENTERPRISE_MODULE = 'account_accountant'

    def list_unreconciled(self, journal_id=None, limit=100, date_from=None,
                          date_to=None, min_amount=None, company_id=None):
        """Return unreconciled bank statement lines.

        All filter params are optional; pass company_id to restrict results to
        a single company (the AI tools always do this).
        """
        return self._dispatch(
            'list_unreconciled',
            journal_id=journal_id, limit=limit,
            date_from=date_from, date_to=date_to,
            min_amount=min_amount, company_id=company_id,
        )

    def list_unreconciled_via_fusion(self, journal_id=None, limit=100,
                                     date_from=None, date_to=None,
                                     min_amount=None, company_id=None):
        # Phase 1 will add fusion.bank.rec.widget; this method becomes the primary path.
        # For now: even when the model exists, delegate to community read shape.
        return self.list_unreconciled_via_community(
            journal_id=journal_id, limit=limit,
            date_from=date_from, date_to=date_to,
            min_amount=min_amount, company_id=company_id,
        )

    def list_unreconciled_via_enterprise(self, journal_id=None, limit=100,
                                         date_from=None, date_to=None,
                                         min_amount=None, company_id=None):
        # Enterprise's bank rec uses a JS-side service; from Python the cleanest
        # backend access is the same Community search (the data lives in
        # account.bank.statement.line either way). This adapter's purpose is
        # to expose a stable shape to AI tools regardless of which UI the user has.
        return self.list_unreconciled_via_community(
            journal_id=journal_id, limit=limit,
            date_from=date_from, date_to=date_to,
            min_amount=min_amount, company_id=company_id,
        )

    def list_unreconciled_via_community(self, journal_id=None, limit=100,
                                        date_from=None, date_to=None,
                                        min_amount=None, company_id=None):
        Line = self.env['account.bank.statement.line'].sudo()
        domain = [('is_reconciled', '=', False)]
        if journal_id is not None:
            domain.append(('journal_id', '=', journal_id))
        if company_id is not None:
            domain.append(('company_id', '=', company_id))
        if date_from:
            domain.append(('date', '>=', date_from))
        if date_to:
            domain.append(('date', '<=', date_to))
        if min_amount is not None:
            domain.append(('amount', '>=', min_amount))
        records = Line.search(domain, limit=limit, order='date desc, id desc')
        return [
            {
                'id': r.id,
                'date': r.date,
                'payment_ref': r.payment_ref,
                'amount': r.amount,
                'partner_id': r.partner_id.id if r.partner_id else None,
                'partner_name': r.partner_name or (r.partner_id.name if r.partner_id else None),
                'currency_id': r.currency_id.id if r.currency_id else None,
                'journal_id': r.journal_id.id,
                'journal_name': r.journal_id.name,
            }
            for r in records
        ]


register_adapter('bank_rec', BankRecAdapter)