v1.0 - Version stable: multi-PC, détection UI-DETR-1, 3 modes exécution
- Frontend v4 accessible sur réseau local (192.168.1.40) - Ports ouverts: 3002 (frontend), 5001 (backend), 5004 (dashboard) - Ollama GPU fonctionnel - Self-healing interactif - Dashboard confiance Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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visual_workflow_builder/backend/api/templates.py
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visual_workflow_builder/backend/api/templates.py
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"""
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Templates API Blueprint
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Provides REST endpoints for workflow template management.
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"""
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from flask import Blueprint, request, jsonify
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import logging
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import sys
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import os
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sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from services.template_service import TemplateService
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from services.serialization import WorkflowSerializer
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from api.errors import handle_api_error
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templates_bp = Blueprint('templates', __name__)
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logger = logging.getLogger(__name__)
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# Initialize services
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template_service = TemplateService()
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workflow_serializer = WorkflowSerializer()
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@templates_bp.route('/', methods=['GET'])
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def list_templates():
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"""List all templates with optional filtering"""
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try:
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# Get query parameters
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category = request.args.get('category')
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difficulty = request.args.get('difficulty')
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# Get templates
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templates = template_service.list_templates(category=category, difficulty=difficulty)
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# Convert to dict format
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result = []
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for template in templates:
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template_dict = template.to_dict()
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# Remove the full workflow from list view for performance
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template_dict.pop('workflow', None)
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result.append(template_dict)
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return jsonify({
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'templates': result,
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'count': len(result)
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})
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except Exception as e:
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logger.error(f"Error listing templates: {e}")
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return handle_api_error(e)
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@templates_bp.route('/', methods=['POST'])
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def create_template():
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"""Create a new template"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({'error': 'No data provided'}), 400
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# Create template
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template = template_service.create_template(data)
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logger.info(f"Created template: {template.id}")
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return jsonify(template.to_dict()), 201
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except ValueError as e:
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logger.warning(f"Template validation error: {e}")
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return jsonify({'error': str(e)}), 400
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except Exception as e:
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logger.error(f"Error creating template: {e}")
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return handle_api_error(e)
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@templates_bp.route('/<template_id>', methods=['GET'])
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def get_template(template_id):
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"""Get a specific template"""
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try:
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template = template_service.get_template(template_id)
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if not template:
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return jsonify({'error': 'Template not found'}), 404
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return jsonify(template.to_dict())
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except Exception as e:
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logger.error(f"Error getting template {template_id}: {e}")
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return handle_api_error(e)
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@templates_bp.route('/<template_id>', methods=['PUT'])
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def update_template(template_id):
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"""Update an existing template"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({'error': 'No data provided'}), 400
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template = template_service.update_template(template_id, data)
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if not template:
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return jsonify({'error': 'Template not found'}), 404
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logger.info(f"Updated template: {template_id}")
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return jsonify(template.to_dict())
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except ValueError as e:
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logger.warning(f"Template validation error: {e}")
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return jsonify({'error': str(e)}), 400
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except Exception as e:
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logger.error(f"Error updating template {template_id}: {e}")
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return handle_api_error(e)
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@templates_bp.route('/<template_id>', methods=['DELETE'])
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def delete_template(template_id):
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"""Delete a template"""
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try:
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success = template_service.delete_template(template_id)
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if not success:
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return jsonify({'error': 'Template not found'}), 404
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logger.info(f"Deleted template: {template_id}")
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return jsonify({'message': 'Template deleted successfully'})
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except Exception as e:
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logger.error(f"Error deleting template {template_id}: {e}")
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return handle_api_error(e)
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@templates_bp.route('/<template_id>/instantiate', methods=['POST'])
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def instantiate_template(template_id):
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"""Create a workflow from a template"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({'error': 'No data provided'}), 400
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# Extract parameters
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parameters = data.get('parameters', {})
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workflow_name = data.get('name', f'Workflow from template {template_id}')
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created_by = data.get('created_by', 'user')
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# Create workflow instance
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workflow = template_service.instantiate_template(
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template_id, parameters, workflow_name, created_by
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)
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if not workflow:
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return jsonify({'error': 'Template not found'}), 404
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# Save the workflow
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workflow_data = workflow_serializer.serialize(workflow)
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workflow_id = workflow_serializer.save_workflow(workflow_data)
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logger.info(f"Instantiated template {template_id} as workflow {workflow_id}")
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return jsonify({
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'workflow_id': workflow_id,
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'workflow': workflow.to_dict()
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}), 201
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except ValueError as e:
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logger.warning(f"Template instantiation error: {e}")
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return jsonify({'error': str(e)}), 400
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except Exception as e:
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logger.error(f"Error instantiating template {template_id}: {e}")
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return handle_api_error(e)
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@templates_bp.route('/from-workflow', methods=['POST'])
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def create_template_from_workflow():
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"""Create a template from an existing workflow"""
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try:
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data = request.get_json()
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if not data:
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return jsonify({'error': 'No data provided'}), 400
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# Extract required fields
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workflow_id = data.get('workflow_id')
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template_name = data.get('template_name')
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template_description = data.get('template_description')
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category = data.get('category', 'Custom')
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parameters = data.get('parameters', [])
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if not all([workflow_id, template_name, template_description]):
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return jsonify({
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'error': 'workflow_id, template_name, and template_description are required'
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}), 400
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# Load the workflow
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workflow_data = workflow_serializer.load_workflow(workflow_id)
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if not workflow_data:
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return jsonify({'error': 'Workflow not found'}), 404
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workflow = workflow_serializer.deserialize(workflow_data)
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# Create template
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template = template_service.create_template_from_workflow(
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workflow, template_name, template_description, category, parameters
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)
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logger.info(f"Created template {template.id} from workflow {workflow_id}")
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return jsonify(template.to_dict()), 201
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except ValueError as e:
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logger.warning(f"Template creation error: {e}")
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return jsonify({'error': str(e)}), 400
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except Exception as e:
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logger.error(f"Error creating template from workflow: {e}")
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return handle_api_error(e)
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@templates_bp.route('/categories', methods=['GET'])
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def get_template_categories():
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"""Get all available template categories"""
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try:
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templates = template_service.list_templates()
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categories = list(set(template.category for template in templates))
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categories.sort()
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return jsonify({
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'categories': categories
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})
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except Exception as e:
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logger.error(f"Error getting template categories: {e}")
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return handle_api_error(e)
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