from odoo import models, fields, api, _


class FSMVisit(models.Model):
    _name = "bemade_fsm.visit"
    _description = 'Represents a single visit by assigned service personnel.'

    label = fields.Text(string="Label", required=True, related='so_section_id.name', readonly=False, copy=True)

    approx_date = fields.Date(string='Approximate Date', copy=False)

    so_section_id = fields.Many2one(
        comodel_name="sale.order.line",
        string="Sale Order Section",
        help="The section on the sale order that represents the labour and parts for this visit",
        ondelete="cascade"
    )

    sale_order_id = fields.Many2one(
        comodel_name="sale.order",
        string="Sales Order",
        readonly=True,
    )

    is_completed = fields.Boolean(string="Completed", related="so_section_id.is_fully_delivered")

    is_invoiced = fields.Boolean(string="Invoiced", related="so_section_id.is_fully_delivered_and_invoiced")

    summarized_equipment_ids = fields.Many2many(
        comodel_name="bemade_fsm.equipment",
        string="Equipment to Service",
        compute="_compute_summarized_equipment_ids"
    )

    task_id = fields.Many2one(
        comodel_name="project.task",
        compute="_compute_task_id",
        string="Service Visit",
    )

    task_ids = fields.One2many(
        comodel_name="project.task",
        inverse_name="visit_id"
    )

    @api.depends('task_ids')
    def _compute_task_id(self):
        for rec in self:
            rec.task_id = rec.task_ids and rec.task_ids[0]

    @api.depends('so_section_id', 'sale_order_id.summary_equipment_ids')
    def _compute_summarized_equipment_ids(self):
        for rec in self:
            lines = rec.so_section_id.get_section_line_ids()
            equipment_ids = []
            for line in lines:
                for equipment in line.equipment_ids:
                    equipment_ids.append(equipment)
            rec.summarized_equipment_ids = equipment_ids

    @api.model_create_multi
    def create(self, vals_list):
        recs = super().create(vals_list)
        for i, rec in enumerate(recs.filtered(lambda visit: not visit.so_section_id)):
            rec.so_section_id = rec.env['sale.order.line'].create({
                'order_id': rec.sale_order_id.id,
                'display_type': 'line_section',
                'name': vals_list[i].get('label', False),
            })
        return recs