# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)

from odoo import models, fields, api


class ResConfigSettings(models.TransientModel):
    _inherit = 'res.config.settings'

    fi_case_conversion = fields.Selection([
        ('none', 'No Conversion'),
        ('upper', 'UPPERCASE'),
        ('sentence', 'Sentence case'),
        ('capitalized', 'Capitalized Case'),
        ('lower', 'lowercase'),
    ], string='Product Name Case',
        config_parameter='fusion_inventory.case_conversion',
        default='none',
        help='Globally convert all product names to the selected case. '
             'Overrides individual product settings and applies to new products.')

    fi_auto_update_cost = fields.Boolean(
        string='Auto-Update Cost from Vendor Bills',
        config_parameter='fusion_inventory.auto_update_cost',
        default=True,
        help='Automatically update product cost when a vendor bill is confirmed. '
             'Uses the latest bill line price (skips zero-price lines).')

    fi_default_margin = fields.Float(
        string='Default Margin (%)',
        config_parameter='fusion_inventory.default_margin',
        default=0,
        help='Default margin percentage applied to new products.')

    fi_booking_hold_hours = fields.Integer(
        string='Booking Hold Duration (hours)',
        config_parameter='fusion_inventory.booking_hold_hours',
        default=24,
        help='How many hours a product booking holds before auto-expiring.')

    fi_openai_api_key = fields.Char(
        string='OpenAI API Key',
        config_parameter='fusion_inventory.openai_api_key',
        help='API key for OpenAI features (discrepancy analysis, notes parsing). '
             'Falls back to Fusion Digitize key if empty.')

    @api.model
    def get_fi_openai_key(self):
        """Return the effective OpenAI API key, falling back to Fusion Digitize."""
        key = self.env['ir.config_parameter'].sudo().get_param(
            'fusion_inventory.openai_api_key', ''
        )
        if not key:
            key = self.env['ir.config_parameter'].sudo().get_param(
                'fusion_digitize.openai_api_key', ''
            )
        return key or ''

    def action_sync_all_costs_from_bills(self):
        """Pull every product's cost from its latest posted vendor bill line."""
        products = self.env['product.template'].sudo().search([])
        products._sync_cost_from_latest_bill()
        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'title': 'Cost Sync Complete',
                'message': f'Checked {len(products)} products against vendor bill history.',
                'type': 'success',
                'sticky': False,
            },
        }

    def action_apply_case_conversion_all(self):
        """Apply the global case conversion to all existing products."""
        mode = self.fi_case_conversion
        if not mode or mode == 'none':
            return {
                'type': 'ir.actions.client',
                'tag': 'display_notification',
                'params': {
                    'title': 'No Conversion Selected',
                    'message': 'Select a case conversion option first.',
                    'type': 'warning',
                    'sticky': False,
                },
            }

        products = self.env['product.template'].search([])
        count = 0
        for product in products:
            converted = self.env['product.template']._apply_case_conversion(
                product.name, mode
            )
            if converted and converted != product.name:
                product.with_context(_fi_converting_case=True).write({
                    'name': converted,
                    'x_fi_case_conversion': mode,
                })
                count += 1

        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'title': 'Case Conversion Applied',
                'message': f'{count} product names converted to {mode}.',
                'type': 'success',
                'sticky': False,
            },
        }