File size: 8,766 Bytes
7b5611f | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | from __future__ import annotations
import logging
import time
import uuid
from typing import Generator, List, Optional
from models import AuditProgressUpdate, LeakageReport, DeliveryCountMap
from tracer import make_trace_entry
logger = logging.getLogger(__name__)
class AuditOrchestrator:
def __init__(
self,
invoice_extractor,
product_matcher,
pricing_agent,
visual_counter,
reconciliation_agent,
savings_agent,
storage,
tracer,
) -> None:
self._extractor = invoice_extractor
self._matcher = product_matcher
self._pricer = pricing_agent
self._counter = visual_counter
self._reconciler = reconciliation_agent
self._saver = savings_agent
self._storage = storage
self._tracer = tracer
def run_audit(
self,
invoice_file_path: str,
delivery_photo_paths: Optional[List[str]] = None,
supplier_name: str = "",
) -> Generator[AuditProgressUpdate, None, LeakageReport]:
delivery_photo_paths = delivery_photo_paths or []
has_delivery_data = bool(delivery_photo_paths)
audit_run_id = str(uuid.uuid4())
try:
# ── Agent 1: Invoice Extractor ────────────────────────────────────
yield AuditProgressUpdate(
stage="extracting",
message="Extracting invoice data…",
agent_name="Invoice_Extractor",
)
invoice, trace1 = self._extractor.extract(invoice_file_path, audit_run_id)
self._tracer.collect(trace1)
yield AuditProgressUpdate(
stage="extracting",
message=f"Extracted {len(invoice.items)} line items",
agent_name="Invoice_Extractor",
duration_ms=trace1.duration_ms,
)
# Override supplier if provided by user
if supplier_name and not invoice.supplier:
invoice.supplier = supplier_name
# ── Agent 2: Product Matcher ──────────────────────────────────────
yield AuditProgressUpdate(
stage="normalising",
message="Normalising product names…",
agent_name="Product_Matcher",
)
invoice, trace2 = self._matcher.normalize(invoice, audit_run_id)
self._tracer.collect(trace2)
yield AuditProgressUpdate(
stage="normalising",
message=f"Normalised; {len(invoice.unmatched_products)} unmatched",
agent_name="Product_Matcher",
duration_ms=trace2.duration_ms,
)
# ── Agent 3: Pricing Agent ────────────────────────────────────────
yield AuditProgressUpdate(
stage="checking_prices",
message="Checking prices and GST…",
agent_name="Pricing_Agent",
)
pricing_flags, pricing_meta, trace3 = self._pricer.run(invoice, audit_run_id)
self._tracer.collect(trace3)
yield AuditProgressUpdate(
stage="checking_prices",
message=f"Found {len(pricing_flags)} pricing flags",
agent_name="Pricing_Agent",
duration_ms=trace3.duration_ms,
)
# ── Agent 4: Visual Counter ───────────────────────────────────────
delivery_count_map: DeliveryCountMap = {}
low_confidence_photos: List[str] = []
if has_delivery_data and self._counter is not None:
yield AuditProgressUpdate(
stage="counting_products",
message=f"Analysing {len(delivery_photo_paths)} delivery photo(s)…",
agent_name="Visual_Counter",
)
delivery_count_map, low_confidence_photos, trace4 = self._counter.count_photos(
delivery_photo_paths, audit_run_id
)
self._tracer.collect(trace4)
yield AuditProgressUpdate(
stage="counting_products",
message=f"Detected {sum(delivery_count_map.values())} products",
agent_name="Visual_Counter",
duration_ms=trace4.duration_ms,
)
else:
# Emit a stub trace so canonical agent order is preserved
t = time.monotonic()
trace4 = make_trace_entry(
agent_name="Visual_Counter",
agent_version="1.0.0",
audit_run_id=audit_run_id,
t_start=t,
t_end=t,
input_summary="0 photos (skipped)",
output_summary="skipped — no delivery photos provided",
)
self._tracer.collect(trace4)
# ── Agent 5: Reconciliation Agent ─────────────────────────────────
reconciliation_flags: list = []
unexpected_deliveries: List[str] = []
if has_delivery_data:
yield AuditProgressUpdate(
stage="reconciling",
message="Reconciling invoice vs delivery…",
agent_name="Reconciliation_Agent",
)
reconciliation_flags, unexpected_deliveries, trace5 = self._reconciler.run(
invoice, delivery_count_map, audit_run_id
)
self._tracer.collect(trace5)
yield AuditProgressUpdate(
stage="reconciling",
message=f"Found {len(reconciliation_flags)} shortage flags",
agent_name="Reconciliation_Agent",
duration_ms=trace5.duration_ms,
)
else:
t = time.monotonic()
trace5 = make_trace_entry(
agent_name="Reconciliation_Agent",
agent_version="1.0.0",
audit_run_id=audit_run_id,
t_start=t,
t_end=t,
input_summary="skipped — no delivery photos",
output_summary="skipped",
)
self._tracer.collect(trace5)
# ── Agent 6: Savings Agent ────────────────────────────────────────
all_flags = pricing_flags + reconciliation_flags
yield AuditProgressUpdate(
stage="generating_report",
message="Generating savings report…",
agent_name="Savings_Agent",
)
report, trace6 = self._saver.generate_report(
audit_run_id=audit_run_id,
invoice=invoice,
all_flags=all_flags,
skipped_price_checks=pricing_meta.skipped_price_checks,
skipped_gst_checks=pricing_meta.skipped_gst_checks,
unexpected_deliveries=unexpected_deliveries,
low_confidence_photos=low_confidence_photos,
has_delivery_data=has_delivery_data,
)
self._tracer.collect(trace6)
yield AuditProgressUpdate(
stage="generating_report",
message=f"Report ready — ₹{report.total_leakage_inr:.2f} leakage found",
agent_name="Savings_Agent",
duration_ms=trace6.duration_ms,
)
# ── Persist and publish ───────────────────────────────────────────
if self._storage.available:
self._storage.save_invoice(audit_run_id, invoice)
entries = self._tracer.finalise(audit_run_id)
self._tracer.publish_async(audit_run_id, entries, self._storage)
yield AuditProgressUpdate(stage="complete", message="Audit complete")
return report
except Exception as e:
logger.exception("AuditOrchestrator: unhandled error in audit %s", audit_run_id)
yield AuditProgressUpdate(
stage="error",
message=str(e),
)
raise
|