"""Manual depreciation run wizard.

Operator picks a period_date and the wizard posts all running assets'
unposted lines whose scheduled_date <= period_date."""

from odoo import fields, models


class FusionDepreciationRunWizard(models.TransientModel):
    _name = "fusion.depreciation.run.wizard"
    _description = "Manual Depreciation Run Wizard"

    period_date = fields.Date(
        required=True, default=fields.Date.today,
        help="Post all unposted lines whose scheduled_date is on or before this date.",
    )
    state_filter = fields.Selection([
        ('all_running', 'All Running Assets'),
        ('selected', 'Selected Asset(s) Only'),
    ], default='all_running', required=True)
    asset_ids = fields.Many2many(
        'fusion.asset', domain=[('state', '=', 'running')],
    )

    state = fields.Selection(
        [('draft', 'Draft'), ('done', 'Done')], default='draft',
    )
    posted_count = fields.Integer(readonly=True)
    skipped_count = fields.Integer(readonly=True)
    error_count = fields.Integer(readonly=True)
    summary = fields.Text(readonly=True)

    def action_run(self):
        self.ensure_one()
        if self.state_filter == 'all_running':
            assets = self.env['fusion.asset'].search([
                ('state', '=', 'running'),
                ('company_id', '=', self.env.company.id),
            ])
        else:
            assets = self.asset_ids

        engine = self.env['fusion.asset.engine']
        posted = 0
        skipped = 0
        errors = []
        for asset in assets:
            try:
                with self.env.cr.savepoint():
                    result = engine.post_depreciation_entry(
                        asset, period_date=self.period_date,
                    )
                    posted += result.get('posted_count', 0)
                    if result.get('posted_count', 0) == 0:
                        skipped += 1
            except Exception as e:  # noqa: BLE001
                errors.append(f"{asset.name}: {e}")

        self.write({
            'state': 'done',
            'posted_count': posted,
            'skipped_count': skipped,
            'error_count': len(errors),
            'summary': '\n'.join(errors[:20]) if errors else False,
        })
        return {
            'type': 'ir.actions.act_window',
            'res_model': self._name,
            'res_id': self.id,
            'view_mode': 'form',
            'target': 'new',
        }