from odoo import models, fields, _

class MasterControl(models.Model):
    _name = 'master.control'
    _description = 'Master Control'

    sequence = fields.Integer()
    name = fields.Char(string='Master Name', required=True)
    code = fields.Char(string='Code', required=True)
    default_show = fields.Boolean(default=True)
    access_group_ids = fields.One2many('group.access.line','master_control_id',string='Roles')


    def action_generate_groups(self):
        """Generate category → groups list"""
        for rec in self:

            # Clear old groups
            rec.access_group_ids.unlink()

            groups = self.env['res.groups'].sudo().search([],order='category_id')
            show_group = True if rec.default_show else False
            print(show_group)
            for grp in groups:
                self.env['group.access.line'].create({
                    'master_control_id': rec.id,
                    'group_id': grp.id,
                    'show_group': show_group,
                })

        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'title': _('Success'),
                'message': _('Groups generated successfully!'),
                'type': 'success',
            }
        }

    # -----------------------------------------
    # UPDATE GROUPS (Detect new groups)
    # -----------------------------------------
    def action_update_groups(self):
        for rec in self:
            created_count = 0

            existing_ids = set(rec.access_group_ids.mapped('group_id.id'))

            categories = self.env['ir.module.category'].search([])

            for category in categories:
                groups = self.env['res.groups'].search([
                    ('category_id', '=', category.id)
                ])

                for grp in groups:
                    # create only missing group
                    if grp.id not in existing_ids:
                        rec.access_group_ids.create({
                            'master_control_id': rec.id,
                            'category_id': category.id,
                            'group_id': grp.id,
                            'show_group': True if rec.default_show else False,
                        })
                        created_count += 1
                        existing_ids.add(grp.id)

        if created_count:
            message = f"Added {created_count} new groups."
            msg_type = "success"
        else:
            message = "No new groups found."
            msg_type = "info"

        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'title': _('Group Update'),
                'message': _(message),
                'type': msg_type,
            }
        }


class GroupsAccessLine(models.Model):
    _name = 'group.access.line'
    _description = 'Group Access Line'
    _rec_name = 'group_id'

    category_id = fields.Many2one('ir.module.category', related='group_id.category_id')
    group_id = fields.Many2one('res.groups', string="Role")
    show_group = fields.Boolean(string="Show", default=True)
    master_control_id = fields.Many2one('master.control')