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


class PartnerSkillLine(models.Model):
    _name = 'partner.skill.line'
    _description = "Skill level for a partner"
    _order = "skill_type_id, skill_level_id"
    _rec_name = "skill_id"

    partner_id = fields.Many2one('res.partner', required=True, ondelete='cascade')
    skill_id = fields.Many2one(
        'partner.skill', compute='_compute_skill_id', store=True,
        domain="[('skill_type_id', '=', skill_type_id)]",
        readonly=False, required=True, ondelete='cascade')
    skill_level_id = fields.Many2one(
        'partner.skill.level', compute='_compute_skill_level_id',
        domain="[('skill_type_id', '=', skill_type_id)]",
        store=True, readonly=False, required=True, ondelete='cascade')
    skill_type_id = fields.Many2one(
        'partner.skill.type',
        default=lambda self: self.env['partner.skill.type'].search([], limit=1),
        required=True, ondelete='cascade')
    level_progress = fields.Integer(related='skill_level_id.level_progress')
    color = fields.Integer(related='skill_type_id.color')

    _sql_constraints = [
        ('_unique_skill', 'unique (partner_id, skill_id)',
         "Two levels for the same skill is not allowed"),
    ]

    @api.constrains('skill_id', 'skill_type_id')
    def _check_skill_type(self):
        for record in self:
            if record.skill_id not in record.skill_type_id.skill_ids:
                raise ValidationError(_(
                    "The skill %(name)s and skill type %(type)s doesn't match",
                    name=record.skill_id.name,
                    type=record.skill_type_id.name,
                ))

    @api.constrains('skill_type_id', 'skill_level_id')
    def _check_skill_level(self):
        for record in self:
            if record.skill_level_id not in record.skill_type_id.skill_level_ids:
                raise ValidationError(_(
                    "The skill level %(level)s is not valid for skill type: %(type)s",
                    level=record.skill_level_id.name,
                    type=record.skill_type_id.name,
                ))

    @api.depends('skill_type_id')
    def _compute_skill_id(self):
        for record in self:
            if record.skill_type_id:
                record.skill_id = record.skill_type_id.skill_ids[0] if record.skill_type_id.skill_ids else False
            else:
                record.skill_id = False

    @api.depends('skill_id')
    def _compute_skill_level_id(self):
        for record in self:
            if not record.skill_id:
                record.skill_level_id = False
            else:
                skill_levels = record.skill_type_id.skill_level_ids
                record.skill_level_id = skill_levels.filtered('default_level') or skill_levels[0] if skill_levels else False

    @api.depends('skill_id', 'skill_level_id')
    def _compute_display_name(self):
        for record in self:
            record.display_name = f"{record.skill_id.name}: {record.skill_level_id.name}"