# -*- coding: utf-8 -*-
from odoo import api, fields, models


class FusionServiceRate(models.Model):
    _name = 'fusion.service.rate'
    _description = 'Field Service Rate'
    _order = 'sequence, rate_kind, category, timing'

    name = fields.Char(string='Name', required=True)
    code = fields.Char(
        string='Code', required=True, index=True,
        help='Stable code used by the booking engine, e.g. callout_standard_normal, per_km.',
    )
    rate_kind = fields.Selection([
        ('callout', 'Service Call-out'),
        ('labour', 'Labour'),
        ('travel', 'Travel / per-km'),
        ('delivery', 'Delivery / Pickup'),
        ('other', 'Other'),
    ], string='Kind', required=True, default='callout')
    category = fields.Selection([
        ('standard', 'Standard'),
        ('lift', 'Lift & Elevating'),
        ('na', 'N/A'),
    ], string='Category', default='na')
    timing = fields.Selection([
        ('normal', 'Normal'),
        ('rush', 'Rush'),
        ('afterhours', 'After-Hours'),
        ('na', 'N/A'),
    ], string='Timing', default='na')
    in_shop = fields.Boolean(string='In-Shop')
    product_id = fields.Many2one(
        'product.product', string='Invoice Product', required=True, ondelete='restrict',
        help='Product used on the sale-order line (description, tax, income account).',
    )
    price = fields.Monetary(
        string='Rate', required=True, currency_field='currency_id',
        help='Editable price used on the SO line and the on-screen estimate.',
    )
    currency_id = fields.Many2one(
        'res.currency', string='Currency',
        default=lambda self: self.env.company.currency_id,
    )
    unit = fields.Selection([
        ('fixed', 'Flat'),
        ('per_hour', 'Per hour'),
        ('per_km', 'Per km'),
    ], string='Unit', required=True, default='fixed')
    adds_per_km = fields.Boolean(
        string='Adds per-km travel',
        help='Call-outs billed as $X + per-km \xd7 2-way (rush / after-hours).',
    )
    included_labour_min = fields.Integer(
        string='Included labour (min)', default=0,
        help='Free labour minutes bundled into a service call (e.g. 30).',
    )
    active = fields.Boolean(string='Active', default=True)
    sequence = fields.Integer(string='Sequence', default=10)

    _unique_code = models.Constraint(
        'UNIQUE(code)',
        'A service-rate code must be unique.',
    )

    @api.model
    def get_callout(self, category, timing, in_shop=False):
        """Active call-out rate for category+timing. Empty recordset when in-shop."""
        if in_shop:
            return self.browse()
        return self.search([
            ('rate_kind', '=', 'callout'),
            ('category', '=', category),
            ('timing', '=', timing),
        ], limit=1)

    @api.model
    def get_rate(self, code):
        """Active rate row by code (e.g. 'per_km', 'labour_onsite')."""
        return self.search([('code', '=', code)], limit=1)