141 lines
4.8 KiB
Python
141 lines
4.8 KiB
Python
"""Prioritization Engine — generates actionable suggestions based on task state."""
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from datetime import datetime, timedelta
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from zoneinfo import ZoneInfo
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from sqlalchemy.orm import Session
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from app.models import Task
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BERLIN_TZ = ZoneInfo("Europe/Berlin")
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def generate_suggestions(db: Session) -> list[dict]:
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"""Analyze open tasks and generate prioritization suggestions.
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Returns a list of suggestion dicts with: id, content, type, severity.
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"""
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now = datetime.now(BERLIN_TZ)
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today = now.date()
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suggestions = []
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suggestion_id = 1
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open_tasks = db.query(Task).filter(Task.status == "open").all()
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if not open_tasks:
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return []
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# --- 1. Overdue tasks ---
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overdue_tasks = [
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t for t in open_tasks
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if t.due_date and t.due_date.date() < today
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]
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for t in overdue_tasks[:3]: # Limit to top 3
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days_overdue = (today - t.due_date.date()).days
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suggestions.append({
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"id": suggestion_id,
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"content": f"⚠️ \"{t.title}\" is {days_overdue} day{'s' if days_overdue != 1 else ''} overdue. Reschedule or complete it.",
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"type": "overdue",
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"severity": "high",
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"task_id": t.id,
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})
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suggestion_id += 1
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# --- 2. Due tomorrow ---
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tomorrow = today + timedelta(days=1)
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due_tomorrow = [
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t for t in open_tasks
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if t.due_date and t.due_date.date() == tomorrow
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]
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for t in due_tomorrow:
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suggestions.append({
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"id": suggestion_id,
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"content": f"📅 \"{t.title}\" is due tomorrow.",
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"type": "upcoming",
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"severity": "medium",
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"task_id": t.id,
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})
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suggestion_id += 1
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# --- 3. Due this week ---
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week_end = today + timedelta(days=7)
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due_this_week = [
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t for t in open_tasks
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if t.due_date and today < t.due_date.date() <= week_end
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and t.due_date.date() != tomorrow # Already covered above
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]
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if len(due_this_week) > 3:
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suggestions.append({
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"id": suggestion_id,
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"content": f"📋 You have {len(due_this_week)} tasks due this week. Plan your time.",
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"type": "workload",
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"severity": "medium",
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})
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suggestion_id += 1
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# --- 4. High-priority tasks without due dates ---
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high_no_date = [
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t for t in open_tasks
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if t.priority and t.priority <= 2 and not t.due_date
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]
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for t in high_no_date[:2]: # Limit to top 2
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suggestions.append({
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"id": suggestion_id,
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"content": f"🎯 \"{t.title}\" is high priority but has no deadline. Set a due date.",
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"type": "missing_date",
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"severity": "medium",
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"task_id": t.id,
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})
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suggestion_id += 1
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# --- 5. Tasks idle for 7+ days ---
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idle_threshold = now - timedelta(days=7)
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idle_tasks = [
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t for t in open_tasks
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if t.created_at and t.created_at < idle_threshold
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and (not t.due_date) # Only flag idle tasks without deadlines
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and t.priority and t.priority >= 3 # Low/medium priority
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]
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if len(idle_tasks) > 5:
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suggestions.append({
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"id": suggestion_id,
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"content": f"🧹 {len(idle_tasks)} low-priority tasks have been sitting for over a week. Review and clean up.",
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"type": "stale",
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"severity": "low",
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})
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suggestion_id += 1
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elif idle_tasks:
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oldest = max(idle_tasks, key=lambda t: (now - t.created_at).days if t.created_at else 0)
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if oldest.created_at:
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days_idle = (now - oldest.created_at).days
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suggestions.append({
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"id": suggestion_id,
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"content": f"🧹 \"{oldest.title}\" has been open for {days_idle} days. Still relevant?",
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"type": "stale",
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"severity": "low",
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"task_id": oldest.id,
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})
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suggestion_id += 1
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# --- 6. Too many high-priority tasks ---
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high_priority_count = len([t for t in open_tasks if t.priority and t.priority <= 2])
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if high_priority_count > 5:
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suggestions.append({
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"id": suggestion_id,
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"content": f"🔥 You have {high_priority_count} high-priority tasks. If everything is urgent, nothing is. Consider demoting some.",
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"type": "overload",
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"severity": "medium",
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})
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suggestion_id += 1
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# --- 7. No tasks due soon (might need planning) ---
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tasks_with_dates = [t for t in open_tasks if t.due_date]
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if len(open_tasks) > 10 and len(tasks_with_dates) < 3:
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suggestions.append({
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"id": suggestion_id,
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"content": "📆 Most of your tasks have no due dates. Consider scheduling your top priorities.",
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"type": "planning",
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"severity": "low",
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})
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suggestion_id += 1
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return suggestions
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