Warranty Tracker
Business Case
Problem Statement
Warranty management is often neglected:
- Missing warranty documentation
- Expired warranties untracked
- Difficult to file claims
- Scattered across multiple files
Solution
Centralized warranty tracking system that monitors expiration dates, stores documentation, and manages claims.
Business Value
- Cost savings - File claims before expiration
- Organization - Central warranty repository
- Compliance - Meet handover requirements
- Proactive - Automatic expiration alerts
Technical Implementation
import pandas as pd
from datetime import datetime, date, timedelta
from typing import Dict, Any, List, Optional
from dataclasses import dataclass, field
from enum import Enum
class WarrantyType(Enum):
"""Types of warranties."""
MANUFACTURER = "manufacturer"
CONTRACTOR = "contractor"
INSTALLER = "installer"
EXTENDED = "extended"
PERFORMANCE = "performance"
class WarrantyStatus(Enum):
"""Warranty status."""
ACTIVE = "active"
EXPIRING_SOON = "expiring_soon" # Within 90 days
EXPIRED = "expired"
CLAIMED = "claimed"
VOID = "void"
class ClaimStatus(Enum):
"""Warranty claim status."""
DRAFT = "draft"
SUBMITTED = "submitted"
UNDER_REVIEW = "under_review"
APPROVED = "approved"
DENIED = "denied"
RESOLVED = "resolved"
class BuildingSystem(Enum):
"""Building systems."""
STRUCTURAL = "structural"
ROOFING = "roofing"
HVAC = "hvac"
ELECTRICAL = "electrical"
PLUMBING = "plumbing"
ELEVATORS = "elevators"
FIRE_PROTECTION = "fire_protection"
GLAZING = "glazing"
FLOORING = "flooring"
PAINTING = "painting"
APPLIANCES = "appliances"
EXTERIOR = "exterior"
OTHER = "other"
@dataclass
class WarrantyDocument:
"""Warranty document reference."""
document_id: str
filename: str
document_type: str # certificate, manual, conditions
upload_date: date
file_path: str
@dataclass
class Warranty:
"""Warranty record."""
warranty_id: str
item_description: str
system: BuildingSystem
warranty_type: WarrantyType
manufacturer: str
contractor: str
start_date: date
end_date: date
duration_years: int
coverage_details: str
exclusions: str
contact_name: str
contact_phone: str
contact_email: str
location: str
documents: List[WarrantyDocument] = field(default_factory=list)
notes: str = ""
@property
def status(self) -> WarrantyStatus:
"""Calculate current warranty status."""
today = date.today()
if today > self.end_date:
return WarrantyStatus.EXPIRED
elif (self.end_date - today).days <= 90:
return WarrantyStatus.EXPIRING_SOON
else:
return WarrantyStatus.ACTIVE
@property
def days_remaining(self) -> int:
"""Days until warranty expires."""
return (self.end_date - date.today()).days
def to_dict(self) -> Dict[str, Any]:
return {
'warranty_id': self.warranty_id,
'item': self.item_description,
'system': self.system.value,
'type': self.warranty_type.value,
'manufacturer': self.manufacturer,
'contractor': self.contractor,
'start_date': self.start_date.isoformat(),
'end_date': self.end_date.isoformat(),
'duration_years': self.duration_years,
'status': self.status.value,
'days_remaining': self.days_remaining,
'contact': self.contact_email
}
@dataclass
class WarrantyClaim:
"""Warranty claim record."""
claim_id: str
warranty_id: str
issue_description: str
issue_date: date
reported_date: date
status: ClaimStatus
reported_by: str
resolution: str = ""
resolution_date: Optional[date] = None
cost_covered: float = 0.0
documents: List[str] = field(default_factory=list)
notes: str = ""
class WarrantyTracker:
"""Track and manage construction warranties."""
EXPIRING_THRESHOLD_DAYS = 90
def __init__(self, project_name: str, substantial_completion_date: date):
self.project_name = project_name
self.completion_date = substantial_completion_date
self.warranties: Dict[str, Warranty] = {}
self.claims: Dict[str, WarrantyClaim] = {}
self._warranty_counter = 0
self._claim_counter = 0
def add_warranty(self,
item_description: str,
system: BuildingSystem,
warranty_type: WarrantyType,
manufacturer: str,
contractor: str,
duration_years: int,
coverage_details: str,
contact_email: str,
start_date: date = None,
contact_name: str = "",
contact_phone: str = "",
exclusions: str = "",
location: str = "") -> Warranty:
"""Add new warranty record."""
self._warranty_counter += 1
warranty_id = f"WRT-{self._warranty_counter:04d}"
start = start_date or self.completion_date
end = start + timedelta(days=duration_years * 365)
warranty = Warranty(
warranty_id=warranty_id,
item_description=item_description,
system=system,
warranty_type=warranty_type,
manufacturer=manufacturer,
contractor=contractor,
start_date=start,
end_date=end,
duration_years=duration_years,
coverage_details=coverage_details,
exclusions=exclusions,
contact_name=contact_name,
contact_phone=contact_phone,
contact_email=contact_email,
location=location
)
self.warranties[warranty_id] = warranty
return warranty
def add_document(self, warranty_id: str,
filename: str,
document_type: str,
file_path: str) -> WarrantyDocument:
"""Add document to warranty."""
if warranty_id not in self.warranties:
raise ValueError(f"Warranty {warranty_id} not found")
doc_id = f"{warranty_id}-DOC-{len(self.warranties[warranty_id].documents) + 1:02d}"
document = WarrantyDocument(
document_id=doc_id,
filename=filename,
document_type=document_type,
upload_date=date.today(),
file_path=file_path
)
self.warranties[warranty_id].documents.append(document)
return document
def file_claim(self,
warranty_id: str,
issue_description: str,
issue_date: date,
reported_by: str) -> WarrantyClaim:
"""File warranty claim."""
if warranty_id not in self.warranties:
raise ValueError(f"Warranty {warranty_id} not found")
warranty = self.warranties[warranty_id]
# Check if warranty is active
if warranty.status == WarrantyStatus.EXPIRED:
raise ValueError(f"Warranty {warranty_id} has expired")
self._claim_counter += 1
claim_id = f"CLM-{self._claim_counter:04d}"
claim = WarrantyClaim(
claim_id=claim_id,
warranty_id=warranty_id,
issue_description=issue_description,
issue_date=issue_date,
reported_date=date.today(),
status=ClaimStatus.DRAFT,
reported_by=reported_by
)
self.claims[claim_id] = claim
return claim
def update_claim_status(self, claim_id: str,
status: ClaimStatus,
resolution: str = "",
cost_covered: float = 0.0):
"""Update claim status."""
if claim_id