- Parse Carta XLSX natively (openpyxl) instead of CSV-only - Column map confirmed against Fund I export: Investment/Asset/ Investment date/Shares/Cost/Value/Last Valuation date - Handle grouped layout: company subtotal rows + indented position rows - SAFEs: shares=0 in source → null in DB (not additive) - Money already in dollars in XLSX cells, convert to cents directly - Dates parsed from Excel datetime objects - CSV fallback preserved for other formats - Re-import guard catches both seed and non-seed existing rounds - Tested: 14 holdings, 17 positions, total value $8,527,204.58 matches
608 lines
20 KiB
Python
608 lines
20 KiB
Python
"""CSV/XLSX import endpoints for entities and schedule of investments."""
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import csv
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import io
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import re
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from datetime import date, datetime
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from typing import Any
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import openpyxl
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from fastapi import APIRouter, Depends, File, HTTPException, Query, UploadFile
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from sqlmodel import Session, select
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from ten31portal.audit import record_audit
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from ten31portal.auth import require_role
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from ten31portal.database import get_session
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from ten31portal.models import (
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Entity, EntityStatus, EntityType, Holding, Position,
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User, UserRole, Valuation, ValuationRound, RoundStatus,
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)
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router = APIRouter(prefix="/api/import", tags=["import"])
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# --- Column maps ---
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# Confirmed against real Carta exports 2026-06-07.
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# Entity CSV import (Issue 9) — still needs a real entity-level export to confirm.
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ENTITY_COLUMN_MAP: dict[str, str] = {
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# UNCONFIRMED: update after inspecting a real Carta entities export
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"Entity Name": "name",
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"Entity Type": "type",
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"Vintage Year": "vintage_year",
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"Fund Size": "fund_size_cents",
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}
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ENTITY_TYPE_MAP: dict[str, EntityType] = {
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"Fund": EntityType.fund,
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"fund": EntityType.fund,
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"SPV": EntityType.spv,
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"spv": EntityType.spv,
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"GP": EntityType.gp,
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"gp": EntityType.gp,
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"Mgmt Co": EntityType.mgmt_co,
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"mgmt_co": EntityType.mgmt_co,
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"Management Company": EntityType.mgmt_co,
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}
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# Schedule of Investments XLSX import (Issue 10)
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# CONFIRMED against Carta export: "Low Time Preference Fund I, LLC" 2026-06-07
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#
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# Carta XLSX layout:
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# Row 1: Entity name (e.g. "Low Time Preference Fund I, LLC")
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# Row 2: Metadata line ("As of MM/DD/YYYY • Generated by ...")
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# Row 3: Empty
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# Row 4: Headers
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# Row 5: Empty
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# Rows 6+: Data (company rows alternate with position rows, separated by empty rows)
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# Last data row: "Total" summary
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#
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# Column mapping (0-indexed from Row 4 headers):
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# A (0): "Investment" — company name on company/subtotal rows
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# B (1): "Asset" — security name on position rows
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# C (2): "Investment date" — datetime on position rows
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# D (3): "Shares" — number (0 for SAFEs/membership interests)
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# E (4): "Cost" — dollar amount (float)
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# F (5): "Value" — dollar amount (float)
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# G (6): "Last Valuation date" — datetime on position rows
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# H (7): "Gain/Loss" — derived, skip
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# I (8): "Cost per share" — derived, skip
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# J (9): "FMV per share" — derived, skip
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# K (10): "Percent of partners' capital" — skip (phase 2)
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#
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# Company rows: A has name, B is empty, D/E/F have subtotals
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# Position rows: A is empty, B has security name, all columns populated
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# SAFEs: shares = 0, cost per share = 0, FMV per share = 0
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SCHEDULE_COLUMNS = {
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"investment": 0, # A — company name
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"asset": 1, # B — security name
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"inv_date": 2, # C — investment date
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"shares": 3, # D — share count
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"cost": 4, # E — cost in dollars
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"value": 5, # F — value in dollars
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"val_date": 6, # G — last valuation date
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}
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def _parse_money(raw: str) -> int | None:
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"""Parse dollar strings like '$3.3M', '$61.9M', '$1,234,567', '3300000' to cents."""
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if not raw or not raw.strip():
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return None
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s = raw.strip().replace(",", "").replace("$", "")
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multiplier = 1
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if s.upper().endswith("M"):
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multiplier = 1_000_000
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s = s[:-1]
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elif s.upper().endswith("K"):
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multiplier = 1_000
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s = s[:-1]
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elif s.upper().endswith("B"):
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multiplier = 1_000_000_000
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s = s[:-1]
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try:
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return round(float(s) * multiplier * 100)
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except ValueError:
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return None
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def _parse_date(raw: str) -> date | None:
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"""Try common date formats."""
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for fmt in ("%Y-%m-%d", "%m/%d/%Y", "%m/%d/%y", "%Y/%m/%d"):
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try:
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return datetime.strptime(raw.strip(), fmt).date()
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except ValueError:
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continue
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return None
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def _dollars_to_cents(val: float | int) -> int:
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"""Convert dollar amount to integer cents."""
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return round(float(val) * 100)
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# --- Entity import (CSV) ---
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@router.post("/entities")
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def import_entities(
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file: UploadFile = File(...),
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commit: bool = Query(default=True),
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user: User = Depends(require_role(UserRole.approver, UserRole.cfo)),
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session: Session = Depends(get_session),
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) -> dict[str, Any]:
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content = file.file.read().decode("utf-8-sig")
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reader = csv.DictReader(io.StringIO(content))
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results: list[dict] = []
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errors: list[dict] = []
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created = 0
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updated = 0
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for i, row in enumerate(reader, start=2):
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mapped: dict[str, Any] = {}
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for csv_col, model_field in ENTITY_COLUMN_MAP.items():
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val = row.get(csv_col)
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if val is None:
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for k, v in row.items():
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if k.strip().lower() == csv_col.lower():
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val = v
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break
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if val is not None:
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mapped[model_field] = val.strip()
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parsed: dict[str, Any] = {}
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row_errors: list[str] = []
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name = mapped.get("name")
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if not name:
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row_errors.append("Missing entity name")
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else:
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parsed["name"] = name
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type_raw = mapped.get("type", "")
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entity_type = ENTITY_TYPE_MAP.get(type_raw)
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if entity_type is None and type_raw:
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row_errors.append(f"Unknown entity type: {type_raw}")
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elif entity_type:
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parsed["type"] = entity_type
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vy = mapped.get("vintage_year")
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if vy:
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try:
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parsed["vintage_year"] = int(vy)
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except ValueError:
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row_errors.append(f"Invalid vintage year: {vy}")
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fs = mapped.get("fund_size_cents")
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if fs:
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cents = _parse_money(fs)
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if cents is None:
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row_errors.append(f"Cannot parse fund size: {fs}")
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else:
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parsed["fund_size_cents"] = cents
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if row_errors:
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errors.append({"row": i, "errors": row_errors, "raw": dict(row)})
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continue
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if not parsed.get("name"):
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continue
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existing = session.exec(select(Entity).where(Entity.name == parsed["name"])).first()
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action = "update" if existing else "create"
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results.append({
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"row": i,
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"action": action,
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"name": parsed["name"],
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"type": parsed.get("type", EntityType.fund).value if parsed.get("type") else None,
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"vintage_year": parsed.get("vintage_year"),
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"fund_size_cents": parsed.get("fund_size_cents"),
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})
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if commit:
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if existing:
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if "type" in parsed:
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existing.type = parsed["type"]
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if "vintage_year" in parsed:
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existing.vintage_year = parsed["vintage_year"]
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if "fund_size_cents" in parsed:
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existing.fund_size_cents = parsed["fund_size_cents"]
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session.add(existing)
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updated += 1
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else:
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entity = Entity(
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name=parsed["name"],
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type=parsed.get("type", EntityType.fund),
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vintage_year=parsed.get("vintage_year"),
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fund_size_cents=parsed.get("fund_size_cents"),
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)
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session.add(entity)
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created += 1
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if commit:
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record_audit(session, user.id, "import_entities", "entity", None, {
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"created": created, "updated": updated, "errors": len(errors),
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})
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session.commit()
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return {
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"committed": commit,
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"preview": results,
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"errors": errors,
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"summary": {"created": created, "updated": updated, "error_rows": len(errors)},
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}
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# --- Schedule of investments import (XLSX) ---
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def _parse_schedule_xlsx(file_bytes: bytes) -> tuple[str | None, list[dict], list[dict], list[dict]]:
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"""
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Parse a Carta Schedule of Investments XLSX export.
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Returns: (entity_name, holdings_preview, positions_preview, errors)
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"""
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wb = openpyxl.load_workbook(io.BytesIO(file_bytes), data_only=True)
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ws = wb.active
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entity_name: str | None = None
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holdings_preview: list[dict] = []
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positions_preview: list[dict] = []
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errors: list[dict] = []
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# Row 1: entity name
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row1_val = ws.cell(row=1, column=1).value
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if row1_val:
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entity_name = str(row1_val).strip()
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# Row 4: headers — validate
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expected_headers = {0: "Investment", 1: "Asset", 4: "Cost", 5: "Value"}
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for col_idx, expected in expected_headers.items():
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actual = ws.cell(row=4, column=col_idx + 1).value
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if actual and str(actual).strip() != expected:
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errors.append({
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"row": 4,
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"errors": [f"Expected header '{expected}' in column {chr(65 + col_idx)}, got '{actual}'"],
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})
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# Parse data rows (starting at row 6)
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current_company: str | None = None
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seen_companies: set[str] = set()
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for row_idx in range(6, ws.max_row + 1):
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col_a = ws.cell(row=row_idx, column=1).value # Investment (company)
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col_b = ws.cell(row=row_idx, column=2).value # Asset (security)
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col_c = ws.cell(row=row_idx, column=3).value # Investment date
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col_d = ws.cell(row=row_idx, column=4).value # Shares
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col_e = ws.cell(row=row_idx, column=5).value # Cost
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col_f = ws.cell(row=row_idx, column=6).value # Value
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col_g = ws.cell(row=row_idx, column=7).value # Last valuation date
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# Skip empty rows
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if col_a is None and col_b is None:
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continue
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# Skip total row
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if col_a and str(col_a).strip().lower() == "total":
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continue
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# Company subtotal row: col A has name, col B is empty
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if col_a and not col_b:
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company_name = str(col_a).strip()
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current_company = company_name
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if company_name not in seen_companies:
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holdings_preview.append({
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"row": row_idx,
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"company_name": company_name,
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})
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seen_companies.add(company_name)
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continue
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# Position row: col B has security name
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if col_b:
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security_name = str(col_b).strip()
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company = current_company or "(unknown)"
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# Parse investment date
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inv_date: date | None = None
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if isinstance(col_c, datetime):
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inv_date = col_c.date()
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elif col_c:
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inv_date = _parse_date(str(col_c))
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# Parse shares (could be 0 for SAFEs)
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shares: str | None = None
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if col_d is not None:
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shares_val = float(col_d)
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if shares_val != 0:
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# Preserve precision: use string repr
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shares = str(col_d) if not isinstance(col_d, float) else f"{col_d:g}"
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# shares stays None for zero (SAFEs)
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# Parse cost (dollars)
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cost_cents: int | None = None
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if col_e is not None:
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cost_cents = _dollars_to_cents(col_e)
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# Parse value (dollars)
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value_cents: int | None = None
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if col_f is not None:
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value_cents = _dollars_to_cents(col_f)
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# Parse valuation date
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val_date: date | None = None
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if isinstance(col_g, datetime):
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val_date = col_g.date()
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elif col_g:
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val_date = _parse_date(str(col_g))
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positions_preview.append({
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"row": row_idx,
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"company_name": company,
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"security_name": security_name,
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"investment_date": str(inv_date) if inv_date else None,
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"shares": shares,
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"cost_cents": cost_cents,
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"value_cents": value_cents,
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"valuation_date": str(val_date) if val_date else None,
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})
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return entity_name, holdings_preview, positions_preview, errors
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@router.post("/schedule")
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def import_schedule(
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file: UploadFile = File(...),
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entity_id: int = Query(...),
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as_of: date = Query(...),
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commit: bool = Query(default=True),
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user: User = Depends(require_role(UserRole.approver, UserRole.cfo)),
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session: Session = Depends(get_session),
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) -> dict[str, Any]:
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entity = session.get(Entity, entity_id)
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if entity is None:
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raise HTTPException(status_code=404, detail="Entity not found")
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# Check for any existing round at this quarter
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existing_round = session.exec(
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select(ValuationRound).where(
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ValuationRound.entity_id == entity_id,
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ValuationRound.quarter_end == as_of,
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)
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).first()
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if existing_round:
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kind = "seed" if existing_round.is_seed else "valuation"
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raise HTTPException(
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status_code=409,
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detail=f"A {kind} round already exists for this entity and quarter ({as_of}). Cannot overwrite signed history.",
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)
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file_bytes = file.file.read()
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filename = file.filename or ""
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# Detect format
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if filename.endswith(".xlsx") or filename.endswith(".xls"):
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source_entity_name, holdings_preview, positions_preview, errors = _parse_schedule_xlsx(file_bytes)
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else:
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# CSV fallback
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source_entity_name = None
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holdings_preview, positions_preview, errors = _parse_schedule_csv(file_bytes)
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if not commit:
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return {
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"committed": False,
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"source_entity_name": source_entity_name,
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"holdings": holdings_preview,
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"positions": positions_preview,
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"errors": errors,
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"seed_round": {"entity_id": entity_id, "quarter_end": str(as_of)},
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}
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# Commit: create holdings, positions, seed round
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holding_map: dict[str, Holding] = {}
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for hp in holdings_preview:
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name = hp["company_name"]
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existing = session.exec(
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select(Holding).where(
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Holding.entity_id == entity_id,
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Holding.company_name == name,
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)
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).first()
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if existing:
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holding_map[name] = existing
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else:
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h = Holding(entity_id=entity_id, company_name=name)
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session.add(h)
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session.flush()
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holding_map[name] = h
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# Create seed round
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seed_round = ValuationRound(
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entity_id=entity_id,
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quarter_end=as_of,
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status=RoundStatus.approved,
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is_seed=True,
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approved_by=user.id,
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approved_at=datetime.utcnow(),
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)
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session.add(seed_round)
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session.flush()
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positions_created = 0
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positions_updated = 0
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for pp in positions_preview:
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company = pp["company_name"]
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holding = holding_map.get(company)
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if holding is None:
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existing = session.exec(
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select(Holding).where(
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Holding.entity_id == entity_id,
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Holding.company_name == company,
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)
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).first()
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if existing:
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holding = existing
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else:
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holding = Holding(entity_id=entity_id, company_name=company)
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session.add(holding)
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session.flush()
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holding_map[company] = holding
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# Upsert position by (holding, security_name)
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pos = session.exec(
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select(Position).where(
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Position.holding_id == holding.id,
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Position.security_name == pp["security_name"],
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)
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).first()
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if pos is None:
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pos = Position(
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holding_id=holding.id,
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security_name=pp["security_name"],
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investment_date=_parse_date(pp["investment_date"]) if pp["investment_date"] else as_of,
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shares=pp["shares"],
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cost_cents=pp["cost_cents"] or 0,
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)
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session.add(pos)
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session.flush()
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positions_created += 1
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else:
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if pp["investment_date"]:
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pos.investment_date = _parse_date(pp["investment_date"])
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if pp["shares"]:
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pos.shares = pp["shares"]
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if pp["cost_cents"] is not None:
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pos.cost_cents = pp["cost_cents"]
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session.add(pos)
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session.flush()
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positions_updated += 1
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# Attach valuation to seed round
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val = Valuation(
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round_id=seed_round.id,
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position_id=pos.id,
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value_cents=pp["value_cents"] or 0,
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)
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session.add(val)
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record_audit(session, user.id, "import_schedule", "entity", entity_id, {
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"source_entity_name": source_entity_name,
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"holdings": len(holding_map),
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"positions_created": positions_created,
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"positions_updated": positions_updated,
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"seed_quarter": str(as_of),
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})
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session.commit()
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return {
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"committed": True,
|
|
"source_entity_name": source_entity_name,
|
|
"holdings_count": len(holding_map),
|
|
"positions_count": len(positions_preview),
|
|
"positions_created": positions_created,
|
|
"positions_updated": positions_updated,
|
|
"seed_round_id": seed_round.id,
|
|
"errors": errors,
|
|
}
|
|
|
|
|
|
def _parse_schedule_csv(file_bytes: bytes) -> tuple[list[dict], list[dict], list[dict]]:
|
|
"""Legacy CSV parser fallback."""
|
|
content = file_bytes.decode("utf-8-sig")
|
|
reader = csv.DictReader(io.StringIO(content))
|
|
|
|
CSV_COLUMN_MAP = {
|
|
"Company": "company_name",
|
|
"Investment": "company_name",
|
|
"Security": "security_name",
|
|
"Asset": "security_name",
|
|
"Investment Date": "investment_date",
|
|
"Investment date": "investment_date",
|
|
"Shares": "shares",
|
|
"Cost": "cost_cents",
|
|
"Value": "value_cents",
|
|
}
|
|
|
|
holdings_preview: list[dict] = []
|
|
positions_preview: list[dict] = []
|
|
errors: list[dict] = []
|
|
current_company: str | None = None
|
|
|
|
for i, row in enumerate(reader, start=2):
|
|
mapped: dict[str, Any] = {}
|
|
for csv_col, model_field in CSV_COLUMN_MAP.items():
|
|
val = row.get(csv_col)
|
|
if val is None:
|
|
for k, v in row.items():
|
|
if k.strip().lower() == csv_col.lower():
|
|
val = v
|
|
break
|
|
if val is not None:
|
|
mapped[model_field] = val.strip()
|
|
|
|
company = mapped.get("company_name", "").strip()
|
|
security = mapped.get("security_name", "").strip()
|
|
|
|
if company and not security:
|
|
current_company = company
|
|
holdings_preview.append({"row": i, "company_name": company})
|
|
continue
|
|
|
|
if not company and current_company:
|
|
company = current_company
|
|
elif company:
|
|
if company not in [h["company_name"] for h in holdings_preview]:
|
|
holdings_preview.append({"row": i, "company_name": company})
|
|
current_company = company
|
|
|
|
if not security:
|
|
continue
|
|
|
|
row_errors: list[str] = []
|
|
inv_date = None
|
|
if mapped.get("investment_date"):
|
|
inv_date = _parse_date(mapped["investment_date"])
|
|
if inv_date is None:
|
|
row_errors.append(f"Cannot parse date: {mapped['investment_date']}")
|
|
|
|
shares = None
|
|
raw_shares = mapped.get("shares", "")
|
|
if raw_shares:
|
|
s = raw_shares.replace(",", "")
|
|
try:
|
|
sv = float(s)
|
|
if sv != 0:
|
|
shares = s
|
|
except ValueError:
|
|
row_errors.append(f"Cannot parse shares: {raw_shares}")
|
|
|
|
cost_cents = None
|
|
if mapped.get("cost_cents"):
|
|
cost_cents = _parse_money(mapped["cost_cents"])
|
|
if cost_cents is None:
|
|
row_errors.append(f"Cannot parse cost: {mapped['cost_cents']}")
|
|
|
|
value_cents = None
|
|
if mapped.get("value_cents"):
|
|
value_cents = _parse_money(mapped["value_cents"])
|
|
if value_cents is None:
|
|
row_errors.append(f"Cannot parse value: {mapped['value_cents']}")
|
|
|
|
if row_errors:
|
|
errors.append({"row": i, "errors": row_errors, "raw": dict(row)})
|
|
continue
|
|
|
|
positions_preview.append({
|
|
"row": i,
|
|
"company_name": company,
|
|
"security_name": security,
|
|
"investment_date": str(inv_date) if inv_date else None,
|
|
"shares": shares,
|
|
"cost_cents": cost_cents,
|
|
"value_cents": value_cents,
|
|
})
|
|
|
|
return holdings_preview, positions_preview, errors
|