fuj-management/CHANGELOG.md

Changelog

2026-05-06 13:18 CEST — feat(go/M2.7-2.9): port domain/matching package

• New go/internal/domain/matching package porting three helpers from scripts/match_payments.py.
• BuildNameVariants — extracts normalized ASCII search variants from a member name, including nickname (from parens) and separate first/last; filters variants shorter than 3 chars; variants[0] is always the full normalized base name.
• MatchMembers — finds members in free text with "auto" or "review" confidence; exact-name short-circuit prevents nickname substrings (e.g. tov) from matching inside surnames (e.g. ottova).
• FormatDate — normalizes Google Sheets date values: handles nil, empty, int/float64 serial-days since 1899-12-30 (supports fractional serials), pre-formatted YYYY-MM-DD strings, and garbage input — never errors.
• InferTransactionDetails — composes name + month matching over sender/message/user_id; falls back to sender-only member match and date-derived month when text gives no signal.
• 21 table-driven tests; all expected values verified against live Python on 2026-05-06.

2026-05-06 12:43 CEST — feat(go/M2.6): port domain/synch.GenerateSyncID

• New go/internal/domain/synch package with GenerateSyncID(Transaction) string ported from scripts/sync_fio_to_sheets.py generate_sync_id.
• Byte-stable SHA-256 hash over date|amount|currency|sender|vs|message|bank_id (lowercased, UTF-8); Currency: "" defaults to "CZK" matching the Python missing-key fallback.
• Key subtlety: Python's str(float) emits "500.0" for whole-valued floats and switches to scientific notation at |f| >= 1e16 or |f| < 1e-4 — replicated in formatAmount using 'f'/'e' format selection.
• 6 table-driven hash tests + 9 formatAmount tests; all expected values verified against live Python on 2026-05-06.

2026-05-06 09:38 CEST — feat(go/M2.5): port domain/money.ParseCZK

• New go/internal/domain/money package with ParseCZK(string) (float64, error) ported from scripts/infer_payments.py parse_czk_amount.
• Preserves the Czech-locale heuristic: comma → decimal sep; 2+ dots → thousand seps; single dot → decimal (so "1.500" → 1.5).
• Returns (0, ErrInvalidAmount) on parse failure; callers wanting Python's silent-zero contract use v, _ := ParseCZK(s).
• 15 table-driven tests plus a silent-zero contract test; all expected values verified against live Python on 2026-05-06.

2026-05-06 09:24 CEST — feat(go/M2.3+M2.4): port domain/fees.CalculateFee and CalculateJuniorFee

• New go/internal/domain/fees package with adult and junior fee calculators ported from scripts/attendance.py.
• CalculateFee(count, monthKey) int — 0→0, 1→200, 2+→AdultFeeMonthlyRate[month] (fallback 700 CZK).
• CalculateJuniorFee(count, monthKey) Expected — 0→{0}, 1→{Unknown:true} (the "?" sentinel, now strictly typed), 2+→JuniorFeeMonthlyRate[month] (fallback 500 CZK).
• 20 table-driven tests, all verified against live Python; -race clean; golangci-lint clean.

2026-05-06 00:07 CEST — feat(go/M2.2): port czech.ParseMonthReferences

• internal/domain/czech.ParseMonthReferences: three-pass regex (numeric slash, dot, Czech month names) with range wrap-around and m≥10 → previousYear heuristic, byte-equivalent to Python.
• 35 table-driven tests; all expected outputs verified against live Python before locking (addresses risk #4 from the rewrite plan).

2026-05-05 23:33 CEST — feat(go/M2.1): port czech.Normalize

• First M2 pure-domain task: internal/domain/czech.Normalize (NFKD + Mn-strip + lowercase), byte-equivalent to Python czech_utils.normalize.
• Adds golang.org/x/text v0.36.0 as first external Go dependency.
• 13-case table-driven test, all spot-checked against Python before locking.

2026-05-04 23:08 CEST — fix: payment inference exact-match short-circuit

• match_members() now short-circuits on whole-word full-name hits; nickname/partial checks only run when no full name is present.
• Replaced bare in substring checks with _word_in() word-boundary regex throughout, closing the class of bugs where a short nickname (e.g. tov) matches inside another member's surname (ottova).
• Added tests/test_match_members.py (6 cases). Affects scripts/match_payments.py.

2026-05-04 23:08 CEST — feat: lower adult monthly fee to 700 CZK from April 2026

• ADULT_FEE_DEFAULT reduced from 750 → 700 CZK.
• ADULT_FEE_MONTHLY_RATE now pins Sep 2025 – Feb 2026 at 750 to preserve historical billing; Mar 2026 stays 350; Apr–May 2026 at 700. Affects scripts/attendance.py.

2026-05-04 12:02 CEST — Go rewrite M1: skeleton + tooling

• Created go/ tree with module fuj-management/go (Go 1.26).
• cmd/fuj: stdlib-flag subcommand dispatcher; server and version implemented, stubs for M2/M4 commands.
• internal/config: env loader mirroring scripts/config.py (same env var names and defaults).
• internal/logging: slog setup accepting log level from config.
• internal/web: net/http ServeMux on :8080; middleware/timer.go logs method/path/status/ms.
• go/build/Dockerfile: multi-stage (golang:1.26 → alpine:3) producing a static binary image.
• Makefile: web → web-py alias; added web-go, go-build, go-test, go-run, go-lint.
• .gitea/workflows/build.yaml: parallel build-go job pushing <tag>-go image.
• Gate: make go-build, make go-lint, make go-test, curl :8080 all pass.

2026-05-03 20:37 CEST — Fix Balance column to correctly reflect past-month debt

• Balance (and Pay-All) are now computed as sum(paid − expected) over past months only, iterating directly over the ledger entries from reconcile().
• Previously the balance used total_balance (which includes current/future-month activity and out-of-window credits) plus a one-sided current-month debt adjustment. Current-month surplus leaked through, making the balance appear less negative than the actual past-month debt.
• Pay-All is now max(0, −balance) so the two values are derived from a single source and can never disagree.
• Affected: adults_view() and juniors_view() in app.py.

2026-05-03 19:26 CEST — Fee-aware allocation for multi-month payments

• reconcile() no longer splits a multi-month payment evenly. Allocation is now per-member with two phases: greedy (if amount ≥ total expected, each month gets exactly its expected fee and overflow → credit) and proportional (otherwise distribute by each month's expected). Fixes the case where e.g. 1250 CZK covering 3 months with mixed fees (750/350/150) marked two months red.
• Out-of-window months keep the previous even-split-to-credit behavior. Fallback to even split when all matched months have expected = 0 (prepayment before attendance is recorded).
• Display layer only — no changes to how payments are stored in Google Sheets; Inferred Amount still holds the full bank amount.
• Files: scripts/match_payments.py, tests/test_reconcile_exceptions.py (6 new test cases).