from odoo import api, fields, models

_KH_DIGITS = str.maketrans('0123456789', '០១២៣៤៥៦៧៨៩')
_KH_MONTHS = [
    'មករា', 'កុម្ភៈ', 'មីនា', 'មេសា', 'ឧសភា', 'មិថុនា',
    'កក្កដា', 'សីហា', 'កញ្ញា', 'តុលា', 'វិច្ឆិកា', 'ធ្នូ',
]


class DocApprovalDocumentApproverCustom(models.Model):
    _inherit = 'xf.doc.approval.document.approver'

    role = fields.Selection(
        string='តួនាទី',
        selection=[
            ('reviewer', 'អ្នកពិនិត្យ និងផ្តល់យោបល់'),
            ('approver', 'អ្នកអនុម័ត'),
        ],
        default='approver',
    )
    state = fields.Selection(
        selection=[
            ('to approve', 'មិនទាន់ពិនិត្យ'),
            ('pending', 'រង់ចាំ'),
            ('approved', 'បានអនុម័ត'),
            ('rejected', 'បានបដិសេធ'),
        ],
    )

    sent_date = fields.Datetime(
        string='Review Date',
        readonly=True,
    )
    sent_date_kh = fields.Char(
        string='កាលបរិច្ឆេទ',
        compute='_compute_sent_date_kh',
    )

    @api.depends('sent_date')
    def _compute_sent_date_kh(self):
        for rec in self:
            if rec.sent_date:
                dt = fields.Datetime.context_timestamp(rec, rec.sent_date)
                day = str(dt.day).translate(_KH_DIGITS)
                month = _KH_MONTHS[dt.month - 1]
                year = str(dt.year).translate(_KH_DIGITS)
                hour = str(dt.hour).translate(_KH_DIGITS)
                minute = str(dt.minute).zfill(2).translate(_KH_DIGITS)
                rec.sent_date_kh = f'{day} {month} {year}  {hour}:{minute}'
            else:
                rec.sent_date_kh = False
    round = fields.Integer(
        string='Round',
        default=1,
        readonly=True,
    )
    notes_display = fields.Text(
        string='Notes (Visible)',
        compute='_compute_notes_display',
    )

    @api.depends('notes', 'step', 'document_package_id.approver_ids.step',
                 'document_package_id.approver_ids.user_id')
    def _compute_notes_display(self):
        current_uid = self.env.uid
        is_admin = self.env.user._is_admin()
        for record in self:
            if is_admin:
                record.notes_display = record.notes
                continue
            package = record.document_package_id
            # Find the current user's highest step in this document
            my_approvers = package.approver_ids.filtered(
                lambda a: a.user_id.id == current_uid
            )
            if not my_approvers:
                # Initiator or non-approver: see all notes
                record.notes_display = record.notes
            else:
                my_max_step = max(my_approvers.mapped('step'))
                # Show this row's note only if its step <= my step
                if record.step <= my_max_step:
                    record.notes_display = record.notes
                else:
                    record.notes_display = False

    def action_approve(self):
        self.filtered(lambda a: not a.sent_date).write({'sent_date': fields.Datetime.now()})
        return super().action_approve()

    def action_reject(self):
        self.filtered(lambda a: not a.sent_date).write({'sent_date': fields.Datetime.now()})
        return super().action_reject()