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csv-parser: keep LLM-mapped tickers; don't pass them through T212 mapping

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The route's resolve-slice loop is T212-specific — it looks tickers up
against the InstrumentMap, which only has T212's universe. For the LLM
path the ticker is already Yahoo-ready (e.g. VOD.L, ASML.AS), so
sending it through resolve_slice produced spurious "could not be
resolved" warnings and dropped the positions.

Fix: ParsedPie gains a ``tickers_resolved`` flag (default False for
T212 backward-compat); _apply_mapping in the LLM path sets it True
and also extracts currency from the LLM-mapped currency_col into a
new ``ParsedPosition.currency`` field. The route branches on the flag:
LLM-path positions are kept verbatim with a best-effort InstrumentMap
lookup for nicer name/currency overrides, never dropped.

Integration test tightened to assert all 5 IBKR fixture positions
round-trip with the right currencies (USD / GBP / EUR).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Giorgio Gilestro 2026-05-27 12:48:27 +02:00
parent b8ebba9503
commit bc55ab7d26
4 changed files with 74 additions and 13 deletions
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14
app/services/csv_import.py
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@ -37,7 +37,10 @@ _REQUIRED_FIELDS = ("slice", "quantity")
@dataclass(frozen=True)
class ParsedPosition:
slice: str # T212 shortcode, e.g. "SGLN"
slice: str # T212 shortcode (e.g. "SGLN") or a
# Yahoo-ready ticker (e.g. "VOD.L")
# when produced by the LLM path —
# see ParsedPie.tickers_resolved.
name: str
invested_value: float | None
current_value: float | None
@ -46,6 +49,10 @@ class ParsedPosition:
dividends_gained: float | None = None
dividends_cash: float | None = None
dividends_reinvested: float | None = None
currency: str | None = None # Populated by the LLM path from the
# mapped currency_col; the T212 path
# leaves it None and gets currency
# from the InstrumentMap row.
@property
def average_price(self) -> float | None:
@ -67,6 +74,11 @@ class ParsedPie:
invested: float | None # totals from the Total row
value: float | None
result: float | None
tickers_resolved: bool = False # True when ``slice`` on each position
# is already a Yahoo-ready ticker
# (LLM path). False (default) means
# tickers must still be resolved via
# the T212 InstrumentMap.
def _normalise_header(h: str) -> str: