# -*- coding: utf-8 -*-
##############################################################################
#
#    Cybrosys Technologies Pvt. Ltd.
#
#    Copyright (C) 2025-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
#    Author: Mohammed Dilshad Tk (odoo@cybrosys.com)
#
#    You can modify it under the terms of the GNU LESSER
#    GENERAL PUBLIC LICENSE (LGPL v3), Version 3.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU LESSER GENERAL PUBLIC LICENSE (LGPL v3) for more details.
#
#    You should have received a copy of the GNU LESSER GENERAL PUBLIC LICENSE
#    (LGPL v3) along with this program.
#    If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
from odoo import fields, models


class SurveyQuestion(models.Model):
    """
    This class extends the 'survey.question' model to add new functionality
    for file uploads.
    """
    _inherit = 'survey.question'

    question_type = fields.Selection(
        selection_add=[('upload_file', 'Upload File')],
        help='Select the type of question to create.')
    upload_multiple_file = fields.Boolean(string='Upload Multiple File',
                                          help='Check this box if you want to '
                                               'allow users to upload '
                                               'multiple files')

    def validate_question(self, answer, comment=None):
        """Validate question answer."""
        self.ensure_one()
        if self.question_type == 'upload_file':
            if self.constr_mandatory:
                # Answer comes as a JSON string '[dataURLs, fileNames]' or raw list from previous steps?
                # The controller passes what it received.
                # If we parsed it in `_save_lines`, that's too late. Validation happens before.
                
                # We need to handle the string if it's not parsed yet, or parsed if Odoo does something.
                # Standard Odoo validation receives raw inputs usually.
                import logging
                from odoo.http import request
                _logger = logging.getLogger(__name__)
                
                # Fallback: Check for prefixed param if answer is empty
                # because standard controller looks for str(id)
                if not answer or answer == '[]':
                     # Try multiple key variants including empty string (common issue with t-att-name)
                     keys_to_check = [f'upload_{self.id}', str(self.id), '']
                     for key in keys_to_check:
                         val = request.params.get(key)
                         if val and val != '[]':
                             answer = val
                             break

                is_answered = False
                if answer and answer != '[]':
                    import json
                    try:
                        # If answer is a string, try parsing it
                        if isinstance(answer, str):
                            answer_data = json.loads(answer)
                        else:
                            answer_data = answer
                        
                        # Check if we have dataURLs (first element of list)
                        if isinstance(answer_data, list) and len(answer_data) > 0 and answer_data[0]:
                            is_answered = True
                    except Exception as e:
                         _logger.error(f"VALIDATE QUESTION {self.id}: Error parsing answer: {e}")
                         is_answered = False

                if not is_answered:
                    return {self.id: "CUSTOM TAG: This question requires an answer."}
            return {}
        return super(SurveyQuestion, self).validate_question(answer, comment)