Agile Product Owner

#!/usr/bin/env python3
"""
User Story Generator with INVEST Criteria
Creates well-formed user stories with acceptance criteria
"""

import json
from typing import Dict, List, Tuple

class UserStoryGenerator:
    """Generate INVEST-compliant user stories"""
    
    def __init__(self):
        self.personas = {
            'end_user': {
                'name': 'End User',
                'needs': ['efficiency', 'simplicity', 'reliability', 'speed'],
                'context': 'daily usage of core features'
            },
            'admin': {
                'name': 'Administrator',
                'needs': ['control', 'visibility', 'security', 'configuration'],
                'context': 'system management and oversight'
            },
            'power_user': {
                'name': 'Power User',
                'needs': ['advanced features', 'automation', 'customization', 'shortcuts'],
                'context': 'expert usage and workflow optimization'
            },
            'new_user': {
                'name': 'New User',
                'needs': ['guidance', 'learning', 'safety', 'clarity'],
                'context': 'first-time experience and onboarding'
            }
        }
        
        self.story_templates = {
            'feature': "As a {persona}, I want to {action} so that {benefit}",
            'improvement': "As a {persona}, I need {capability} to {achieve_goal}",
            'fix': "As a {persona}, I expect {behavior} when {condition}",
            'integration': "As a {persona}, I want to {integrate} so that {workflow}"
        }
        
        self.acceptance_criteria_patterns = [
            "Given {precondition}, When {action}, Then {outcome}",
            "Should {behavior} when {condition}",
            "Must {requirement} to {achieve}",
            "Can {capability} without {negative_outcome}"
        ]
    
    def generate_epic_stories(self, epic: Dict) -> List[Dict]:
        """Break down epic into user stories"""
        stories = []
        
        # Analyze epic for key components
        epic_name = epic.get('name', 'Feature')
        epic_description = epic.get('description', '')
        personas = epic.get('personas', ['end_user'])
        scope = epic.get('scope', [])
        
        # Generate stories for each persona and scope item
        for persona in personas:
            for i, scope_item in enumerate(scope):
                story = self.generate_story(
                    persona=persona,
                    feature=scope_item,
                    epic=epic_name,
                    index=i+1
                )
                stories.append(story)
        
        # Add enabler stories (technical, infrastructure)
        if epic.get('technical_requirements'):
            for req in epic['technical_requirements']:
                enabler = self.generate_enabler_story(req, epic_name)
                stories.append(enabler)
        
        return stories
    
    def generate_story(self, persona: str, feature: str, epic: str, index: int) -> Dict:
        """Generate a single user story"""
        
        persona_data = self.personas.get(persona, self.personas['end_user'])
        
        # Create story
        story = {
            'id': f"{epic[:3].upper()}-{index:03d}",
            'type': 'story',
            'title': self._generate_title(feature),
            'narrative': self._generate_narrative(persona_data, feature),
            'acceptance_criteria': self._generate_acceptance_criteria(feature),
            'estimation': self._estimate_complexity(feature),
            'priority': self._determine_priority(persona, feature),
            'dependencies': [],
            'invest_check': self._check_invest_criteria(feature)
        }
        
        return story
    
    def generate_enabler_story(self, requirement: str, epic: str) -> Dict:
        """Generate technical enabler story"""
        
        return {
            'id': f"{epic[:3].upper()}-E{len(requireme