from odoo import fields, models, api, _
from odoo.exceptions import UserError
import logging

_logger = logging.getLogger(__name__)

class AccountPayment(models.Model):
    _inherit = 'account.payment'

    realization_id = fields.Many2one('hr.expense.realization', string='Originating Realization', readonly=True)

    def action_post(self):
        """
        Confirmation bypass. Calls standard post with skip flag.
        """
        # We use a context flag that our surgical jumper will check
        return super(AccountPayment, self.with_context(skip_expense_lock=True)).action_post()

    def _synchronize_to_moves(self, changed_fields):
        # Force the refresh by ensuring 'amount' is in fields if deductions are involved
        if 'deduction_line_ids' in changed_fields or 'amount_substract' in changed_fields:
            if 'amount' not in changed_fields:
                changed_fields = set(changed_fields) | {'amount'}

        # SURGICAL JUMPER: If we have the bypass flag, we skip the hr_expense method specifically.
        if self._context.get('skip_expense_lock'):
            # Find the hr_expense class in the MRO
            mro = type(self).mro()
            try:
                # Find the index of the middle-man we want to skip
                hr_index = next(i for i, c in enumerate(mro) if c.__module__.startswith('odoo.addons.hr_expense'))
                # Jump to the next class AFTER hr_expense
                return mro[hr_index + 1]._synchronize_to_moves(self, changed_fields)
            except (StopIteration, IndexError):
                pass
        
        return super()._synchronize_to_moves(changed_fields)

    def _synchronize_from_moves(self, changed_fields):
        if self._context.get('skip_expense_lock'):
            mro = type(self).mro()
            try:
                hr_index = next(i for i, c in enumerate(mro) if c.__module__.startswith('odoo.addons.hr_expense'))
                return mro[hr_index + 1]._synchronize_from_moves(self, changed_fields)
            except (StopIteration, IndexError):
                pass
        
        return super()._synchronize_from_moves(changed_fields)

    def write(self, vals):
        if ('deduction_line_ids' in vals or 'amount_substract' in vals or 'amount' in vals) and self.expense_sheet_id:
            # For draft payments linked to expenses, use the jumper to allow edits
            return super(AccountPayment, self.with_context(skip_expense_lock=True)).write(vals)
        return super().write(vals)

    def action_cancel(self):
        res = super().action_cancel()
        for payment in self:
            if payment.expense_sheet_id:
                payment.expense_sheet_id.invalidate_recordset(['state'])
            if payment.realization_id and payment.realization_id.expense_sheet_id:
                payment.realization_id.expense_sheet_id.invalidate_recordset(['state'])
        return res

    def action_draft(self):
        res = super().action_draft()
        for payment in self:
            if payment.expense_sheet_id:
                payment.expense_sheet_id.invalidate_recordset(['state'])
            if payment.realization_id and payment.realization_id.expense_sheet_id:
                payment.realization_id.expense_sheet_id.invalidate_recordset(['state'])
        return res