from odoo import api, fields, models
from odoo.exceptions import ValidationError


class RepairTechnician(models.Model):
    _name = "repair.technician"
    _description = "Repair Technician"
    _order = "name"

    name = fields.Char(required=True)
    user_id = fields.Many2one("res.users", string="User")
    zone_ids = fields.Many2many("repair.fsm.zone", string="FSM Zones")
    active = fields.Boolean(default=True)
    schedule_ids = fields.One2many("repair.technician.schedule", "technician_id", string="Weekly Schedule")
    exception_ids = fields.One2many("repair.technician.exception", "technician_id", string="Exceptions")


class RepairTechnicianSchedule(models.Model):
    _name = "repair.technician.schedule"
    _description = "Repair Technician Weekly Schedule"
    _order = "technician_id, day_of_week, hour_from"

    technician_id = fields.Many2one("repair.technician", required=True, ondelete="cascade")
    day_of_week = fields.Selection(
        selection=[
            ("0", "Monday"),
            ("1", "Tuesday"),
            ("2", "Wednesday"),
            ("3", "Thursday"),
            ("4", "Friday"),
            ("5", "Saturday"),
            ("6", "Sunday"),
        ],
        required=True,
    )
    hour_from = fields.Float(required=True)
    hour_to = fields.Float(required=True)

    @api.constrains("hour_from", "hour_to")
    def _check_hours(self):
        for rec in self:
            if rec.hour_from < 0 or rec.hour_to > 24 or rec.hour_to <= rec.hour_from:
                raise ValidationError("Schedule hours must be between 0 and 24, and hour_to must be greater than hour_from.")


class RepairTechnicianException(models.Model):
    _name = "repair.technician.exception"
    _description = "Repair Technician Exception"
    _order = "start_datetime desc"

    technician_id = fields.Many2one("repair.technician", required=True, ondelete="cascade")
    name = fields.Char(required=True)
    exception_type = fields.Selection(
        selection=[("positive", "Positive"), ("negative", "Negative")],
        required=True,
        default="negative",
    )
    start_datetime = fields.Datetime(required=True)
    end_datetime = fields.Datetime(required=True)
    note = fields.Text()

    @api.constrains("start_datetime", "end_datetime")
    def _check_dates(self):
        for rec in self:
            if rec.end_datetime <= rec.start_datetime:
                raise ValidationError("Exception end must be after start.")