kacerrandClaude Opus 5.5
022facc957
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Go (go/) becomes the primary implementation. The original Python version moves to legacy/ and is kept runnable; new features are still built in both (see the Dual implementation rule in CLAUDE.md). - git mv app.py, scripts/, templates/, tests/, pyproject.toml, uv.lock and build/ into legacy/ - Makefile: Python targets point at legacy/, venv in legacy/.venv, CREDENTIALS_PATH exported for the root .secret/ file - CI and make image build the Python image with legacy/ as context; the Makefile is no longer copied into the image - legacy/.dockerignore moved to the context root so it takes effect - CLAUDE.md, docs/README.md, Go comments, fixture README, capture script and VS Code launch config updated to the new layout Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
66 lines
1.7 KiB
Go
66 lines
1.7 KiB
Go
// Package synch ports the bank-sync deduplication helper from
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// legacy/scripts/sync_fio_to_sheets.py.
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package synch
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import (
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"crypto/sha256"
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"encoding/hex"
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"math"
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"strconv"
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"strings"
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)
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// Transaction is the projection of a Fio transaction that participates
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// in the Sync ID hash. Other fields (ks, ss, sender_account, …) are
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// intentionally excluded — they are not part of the Python hash.
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//
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// Currency: leave "" to inherit the Python default of "CZK" (matches
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// the HTML scraper path which omits the key entirely).
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type Transaction struct {
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Date string
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Amount float64
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Currency string
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Sender string
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VS string
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Message string
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BankID string
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}
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// GenerateSyncID returns the lowercase SHA-256 hex digest of
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// "date|amount|currency|sender|vs|message|bank_id" (lower-cased), used
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// as the dedup key in column K of the payments sheet.
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//
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// Byte-stable with legacy/scripts/sync_fio_to_sheets.py generate_sync_id.
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func GenerateSyncID(tx Transaction) string {
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currency := tx.Currency
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if currency == "" {
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currency = "CZK"
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}
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raw := strings.ToLower(strings.Join([]string{
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tx.Date,
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formatAmount(tx.Amount),
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currency,
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tx.Sender,
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tx.VS,
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tx.Message,
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tx.BankID,
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}, "|"))
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sum := sha256.Sum256([]byte(raw))
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return hex.EncodeToString(sum[:])
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}
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// formatAmount mimics Python's str(float) for Fio transaction amounts.
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// Python uses decimal notation for abs(f) in [1e-4, 1e16) and scientific
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// notation outside that range, always adding ".0" to whole-valued decimals.
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func formatAmount(f float64) string {
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abs := math.Abs(f)
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if abs != 0 && (abs < 1e-4 || abs >= 1e16) {
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return strconv.FormatFloat(f, 'e', -1, 64)
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}
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s := strconv.FormatFloat(f, 'f', -1, 64)
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if !strings.ContainsRune(s, '.') {
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s += ".0"
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}
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return s
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}
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