Commit Graph

20 Commits

Author SHA1 Message Date
904356f4e8 feat(gui): inline Help popover next to every tool's title
Adds a contextual Help button on each detail page, right of the title.
Clicking it opens a Streamlit popover with a one-shot how-to: when to
use, numbered steps, before→after examples, and an optional one-line
tip. Designed to be scannable — no paragraph prose.

Implementation:
- New ``render_tool_header(tool_id)`` helper in components replaces the
  bare ``st.title(...) + st.caption(...)`` block on each of the 11 tool
  pages. Title in the wide column, popover in a narrow right column;
  caption sits on its own line beneath.
- Help content is one markdown blob per tool stored in i18n under
  ``tools.<id>.help_md`` (en + es). Editors can tweak copy without
  touching Python.
- ``help.button_label`` and ``help.missing_body`` keys added to both
  packs for the popover trigger and the empty-tool fallback.

All 11 tool pages now use the same header pattern — including the
PDF Extractor and Reconciler which previously had hardcoded title/
caption pairs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-06-02 17:21:55 +00:00
450d4fc9a8 feat(pdf): default output date format to YYYY-MM-DD
User asked to flip the default from YYYYMMDD to YYYY-MM-DD.
ISO is the better default for an accountant CSV workflow:

- Lexicographic sort = chronological sort (no parsing needed).
- Every spreadsheet tool the user might import into recognises
  it as a real date with no ambiguity (US vs EU readers can't
  disagree on the order).
- Hyphens make the year/month/day boundaries scan-able by eye.

Concrete changes:

- New module constant ``DEFAULT_DATE_FORMAT = "%Y-%m-%d"``,
  used as the default for ``format_date()`` and the
  ``output_date_format`` keyword on
  ``scan_pdf_for_transactions``.
- Page's ``_DATE_FORMAT_CHOICES`` reordered so the ISO entry
  is first (index 0 = default Streamlit selection); YYYYMMDD
  drops to second.
- Custom-strftime input default also flips to ``%Y-%m-%d``.

Tests updated to reflect the new default (``test_dates_formatted_iso_by_default``,
``test_short_dates_get_year_from_period``,
``test_compact_format_round_trip``, plus a new
``test_default_is_iso`` for the format_date helper).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 02:04:34 +00:00
a0042d4aba feat(pdf): Dec/Jan-aware year inference + filename hint + override
Previous year inference picked ``period_end_iso[:4]`` for every
short date, which fails on statements that cross the Dec/Jan
boundary. A "12/30" row in a 2024-12-16 to 2025-01-15 statement
got 2025-12-30 (wrong) instead of 2024-12-30.

New cascade for ``_infer_year_for_short_date``:

1. **``override_year``** — caller supplies it (new ``"Override
   year for short dates"`` field in Scan options). Beats every
   heuristic. Empty by default; the page validates the value
   is a 4-digit-looking integer in 1900-2100 and falls back to
   automatic on garbage input.

2. **Statement period start + end** — the function now takes
   BOTH dates and generates candidates with every distinct year
   in the period (one year for same-year statements, two for
   Dec/Jan boundaries). The picker scores each candidate by
   distance from the period: candidates inside the period
   score 0, candidates outside score ``min(|days from start|,
   |days from end|)``. Lowest-distance candidate wins. So:

     - ``12/30`` + period 2024-12-16 to 2025-01-15 → 2024-12-30
       (inside period, score 0)
     - ``01/05`` + same period → 2025-01-05 (inside, score 0)
     - ``12/15`` + same period → 2024-12-15 (1 day before,
       closer than 2025-12-15 which is 11 months after)

3. **``filename_year_hint``** — fallback when the statement
   period regex misses the bank's specific layout. The page
   passes ``year_from_filename(upload.name)`` automatically so
   files like ``eStmt_2025-01-13.pdf`` get year 2025 even if
   the PDF's text doesn't yield a parseable period. The regex
   matches the first ``20XX`` token bounded by non-digits.

Both new helpers (``year_from_filename`` and the new
``_try_short_date_with_year`` factor-out) are exported and
tested. 16 new tests cover: within-period inference (same-year
sanity), Dec/Jan boundary cases for both sides, the
just-before-period closer-distance case, override priority,
filename fallback, no-signal None, dash-format / month-name
shorthand round-trip, garbage input, filename year extraction
(eStmt pattern, embedded, first-match-wins, no-match, empty).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 01:59:30 +00:00
a18b126885 fix(pdf): stamp scan timestamp once; restores Saved-to-path banner
After swapping to ``html_download_button`` the user noticed the
"✓ Saved to <path>" + 📂 Open Downloads folder pair never
appeared. The helper itself is fine — every other tool shows
those affordances correctly. Bug was specific to the PDF page.

The download button's file_name was being computed with a fresh
``datetime.now().strftime(...)`` on every render. The helper
builds its session-state keys from
``f"_dl_btn_{file_name}_{digest}"`` so the keys silently drift
every second. After the click and rerun, the helper looks up
the saved_key for the NEW file_name, finds nothing in
session_state (the click had written to the OLD key), and skips
the success banner.

Fix: stamp the timestamp once when scan completes, store it in
``K_TIMESTAMP``, and reuse it for the download filename. The
filename stays stable across reruns, so the helper's keys are
stable, so the saved-path banner renders correctly on the post-
click rerun.

Also clear ``K_TIMESTAMP`` on Clear-all-files so a new scan
gets a fresh stamp.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 01:50:22 +00:00
981a1a9cba fix(downloads): OneDrive-aware Downloads path + PDF uses html_download_button
User reported downloads "do nothing on click" in tool pages and
"acts like it downloads but no file in the folder" in the PDF
tool. Two root causes, two fixes.

**Root cause #1 — wrong Downloads folder on Windows.**
``_downloads_dir()`` returned ``Path.home() / "Downloads"``
unconditionally. On Windows machines with OneDrive enabled
(very common for business users), the real Downloads folder
is redirected to ``C:\Users\<u>\OneDrive\Downloads``. Our
helper would write to ``C:\Users\<u>\Downloads`` instead —
a folder that may not even exist until ``mkdir`` creates it —
and the user, naturally opening their actual OneDrive
Downloads, sees no file and concludes nothing happened.

Now: on Windows, ``_downloads_dir`` queries the registry key
``Software\Microsoft\Windows\CurrentVersion\Explorer\User
Shell Folders`` for FOLDERID_Downloads (GUID
``{374DE290-123F-4565-9164-39C4925E467B}``). This entry returns
the redirected path when OneDrive is active, the original
``%USERPROFILE%\Downloads`` otherwise — exactly what the user's
File Explorer reads. ``%USERPROFILE%`` expansion is applied
via ``os.path.expandvars``. Any registry hiccup falls through
to ``Path.home() / "Downloads"`` so the helper never raises.

The sanity check (path exists OR parent exists) catches the
edge case where the registry points into a deleted OneDrive
mount.

**Root cause #2 — PDF page used st.download_button.**
Every other tool uses the project's ``html_download_button``
helper (which is ``local_download_button`` under the hood —
the rename happened in b9147f3). ``st.download_button`` has a
long-standing bug where the second-or-later instance in a
script pass silently fails to fire. The PDF tool predated the
rewrite that switched everyone over and was still using the
broken native widget. ``_Logs.py`` had the same problem in two
places.

Swapped all three call sites to ``html_download_button``. They
now save to ``~/Downloads/<filename>`` (correctly resolved per
fix #1) and show the saved path + "Open Downloads folder"
button below the click, matching every other tool in the suite.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 01:45:51 +00:00
dbcf4d4048 feat(pdf): adopt Home-page Files-card layout
User wants the PDF page's upload UX to match the Home page
exactly — Files section header + bordered card containing the
file rows AND the "Add more files" button at the bottom, no
visible Streamlit file_uploader competing for attention.

Layout changes mirroring ``src/gui/_home.py``:

- ``st.file_uploader`` is positioned off-screen via CSS
  (``position:absolute;left:-10000px;…``). The underlying
  ``<input type=file>`` stays reachable to JS so the in-card
  "Add more files" button can programmatically click it.
- ``<h2>Files</h2>`` section header with ``N files · X.X MB
  total`` meta on the right, identical markup
  (``dt-files-section-head``).
- Single ``st.container(border=True)`` hosts every file row
  (``✕ | 📄 filename | size``, using ``dt-file-row`` /
  ``dt-file-icon-chip`` / ``dt-file-name`` / ``dt-file-size``
  classes) AND the "Add more files" button (``dt-file-add``)
  at the bottom. All classes are already defined globally in
  ``_legacy.py`` so no new CSS.
- The Add button click is wired to the off-screen uploader's
  ``stFileUploaderDropzoneInput`` via a 30-line iframe script,
  identical to the Home page's pattern. A ``MutationObserver``
  re-wires after Streamlit reruns when the button gets
  re-mounted.

Action buttons (Scan + Clear all) sit BELOW the Files card,
side-by-side in a `[1, 1, 4]` column split with
``use_container_width=True`` so they fill their cells cleanly
without stretching across the whole row. Both buttons are
disabled when no files are uploaded — the empty Files card is
its own affordance for the empty state.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 01:34:31 +00:00
34b56b404a fix(pdf): drop statement_period_start/end columns from output
User asked to remove them — the two columns repeated the same
value on every row from a given statement, took up screen space
in the editor, and offered limited value once the date column
already carries the inferred full date.

What's kept:
- ``account_number`` — still stamped onto every row so multi-
  statement CSVs are self-attributing
- ``extract_statement_metadata`` — still runs every scan because
  ``period_end`` is the source of the year inference that binds
  Chase-style short ``01/13`` dates to ``20250113``
- ``_extract_statement_period`` and its tests — period
  detection itself isn't going anywhere, just its appearance in
  the output rows

What's removed:
- ``record["statement_period_start"]`` / ``record["statement_period_end"]``
  assignments in ``scan_pdf_for_transactions``
- The two columns from the page's column-ordering setup
- Tests pinning their presence; replaced with assertions that
  they're explicitly absent

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 01:28:32 +00:00
ad7c22d7fb fix(pdf): consistent 2-decimal amount precision in display and CSV
User reported amounts losing trailing zeros — 4.50 rendering as
4.5, 1000.00 as 1000 — on the same statement. Classic float
display issue: Python's native ``repr(4.5)`` drops the
``.0``, and pandas / Streamlit happily show that
inconsistency cell-by-cell.

Two layers of fix, internal type stays ``float`` for arithmetic:

**Display.** ``st.column_config.NumberColumn(format="%.2f")``
applied programmatically to every ``amount_*`` column on the
data_editor. Every numeric amount now shows with exactly two
decimal places regardless of trailing zeros.

**CSV export.** Pandas' default float-to-CSV writer also drops
trailing zeros (the same issue an accountant would see when
opening the file in Excel). Before serialising, each amount
column is mapped through the new ``format_amount`` helper —
returns ``f"{v:.2f}"`` for numerics, empty string for
None/NaN/inf, ``str(value)`` for booleans (guards the
``True → "1.00"`` foot-gun since ``bool`` is an ``int``
subclass), and passes through any string the scanner kept
because parsing failed (e.g. ``(4.50)`` when parens-negative is
off — user can correct in the editor before re-exporting).

``format_amount`` lives in ``src/pdf_extract.py`` so it's
testable in isolation (the page module can't easily be unit
tested because of its Streamlit import chain). 8 new tests
cover the trailing-zeros case, negatives, None/empty,
string-passthrough, bool guard, NaN/inf, and the ``places``
parameter.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 01:27:16 +00:00
a1824b8dc4 feat(pdf): Home-style file list + Clear-all button
User feedback: the standard file_uploader didn't visually match
the Home page, and there was no obvious way to clear out
uploaded files between scans (have to refresh the browser tab).

**Persistent stash + add-only sync.** Files captured into
``st.session_state["pdf_uploads"]`` (dict name → {bytes, size})
via an ``on_change`` callback on the file_uploader widget. The
callback is **add-only** — never removes files from the stash
based on widget state. Removal is owned by the custom X buttons
+ widget-counter bump (see below). This guarantees a hidden
native X click can't silently drop files behind the user's
back.

**Hidden native file list.** A small CSS block suppresses the
file_uploader's built-in file rows + their delete buttons
(``stFileUploaderFile`` + ``stFileUploaderDeleteBtn``), so the
custom list below is the single source of truth on screen.

**Custom file list (Home pattern).** Below the dropzone, every
uploaded file gets a row: ``✕ | 📄 filename | size``. Top of
section shows ``N files · 12.3 MB total``. Counts and sizes
update in real time as the user adds or removes files. The X
button per row calls ``log_event("upload", "PDF removed: …")``,
removes the entry from the stash, and bumps the widget counter
to clear the widget too.

**Clear-all button.** Sits next to the Scan button. Wipes the
stash, bumps the widget counter, drops any cached scan results
(``K_ROWS``, ``K_WARNINGS``, ``K_SOURCE_COUNT``). Audited via
``log_event("upload", "PDF list cleared", count=N)``.

**Widget reset via counter bump.** Streamlit disallows
programmatic mutation of widget session-state entries; the
standard workaround is to rotate the widget's ``key``. Page
maintains ``K_UPLOAD_COUNTER`` which gets incremented on
remove / clear-all, producing a fresh ``pdf_upload_v{N}`` key
and a freshly-instantiated empty widget. The stash retains any
unaffected files; on next upload, the add-only sync picks up
the new ones without re-adding the removed ones.

**Scan rewired to read the stash.** Instead of iterating the
widget's UploadedFile objects (which the previous code did and
which broke when the widget unmounted on remove), the scan
loop iterates ``pdf_uploads.items()`` and uses the cached
``bytes``. Diagnostic expander does the same — re-reads from
the stash, removing the need for a separate ``K_DIAGNOSTIC``
cache (deleted).

**``_format_size`` helper** ports the byte-formatting logic
from ``_home.py``'s pattern (KB / MB / GB rollover).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 00:28:01 +00:00
155dd30746 feat(pdf): extract statement header (account + period) + date format
Two related additions for the accountant workflow:

**1. Statement header extraction.** New
``extract_statement_metadata(pages)`` pulls the account number
and statement period out of the first page (falls back to
page 1+2 if either is missing on page 1 — Wells Fargo business
accounts put header info on page 2). Detected fields are
stamped onto EVERY transaction row so a multi-statement CSV is
self-attributing per row::

    {
      "date": "20250113",
      "description": "Coffee Shop",
      "amount_1": -4.50,
      "account_number": "****5678",
      "statement_period_start": "20250101",
      "statement_period_end": "20250131",
      ...
    }

Account-number regex is tolerant of masks (``****1234``),
hyphens (``1234-5678-9012``), and spaces. Period regex looks
for "Statement Period" / "From" / "Period Covered" labels plus
the first 1-2 full-year dates that follow. If only one date is
present near the label, it's used for both start and end (some
statements show only the closing date).

**2. Year inference for short dates.** When the row date is a
short ``01/13`` or ``Jan 13`` without a year, the scanner now
binds the year from the statement period's end date BEFORE
formatting. Doesn't handle the December-in-January-statement
cross-year case (rare; user can edit in the table).

**3. Configurable output date format.** New
``output_date_format`` parameter on ``scan_pdf_for_transactions``
defaults to ``%Y%m%d``. Applied to: the transaction date column
AND the statement period start/end fields. The page surfaces a
dropdown in Scan options with common presets (YYYYMMDD,
YYYY-MM-DD, MM/DD/YYYY, DD/MM/YYYY, ``Mon DD, YYYY``) plus a
Custom option that accepts a raw strftime string.

New helper: ``format_date(iso_str, fmt)`` converts ISO
``YYYY-MM-DD`` to any strftime; passes invalid input through
unchanged so the user can see what was actually there rather
than getting silent empties.

20 new tests cover: format_date, account-number extraction
(masked / hyphenated / spaced / no-label / short), period
extraction (standard / from-to / single-date / no-label),
metadata orchestrator (full header / no pages / page-2
fallback), year inference (US / dash / month-name / no-period /
unparseable), plus an end-to-end class that builds a header'd
PDF with short-date transactions and confirms metadata
attribution + year inference + format round-trip.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 00:20:46 +00:00
263af3c7c2 fix(pdf): short dates without year + diagnostic for "0 rows" runs
User uploaded a real Chase statement and got "0 rows detected."
Two bugs the rewrite shipped with, plus a diagnostic:

**1. Short dates without year weren't recognized.** Most bank
statements (Chase, Wells, BofA, …) display transaction dates as
``01/13`` or ``Jan 13`` because the year is implied by the
statement period. The original regex required ``\d{2,4}`` after
the second slash, so ``01/13`` failed to match and rows with no
detected date got dropped.

Split ``_DATE_RES`` into ``_FULL`` (with year) and ``_SHORT``
(no year), with a two-pass detector: pass 1 tries full-year
patterns across the whole row; pass 2 only tries short patterns
if pass 1 found nothing. This prevents a stray ``Page 1/2`` from
shadowing the real dated transaction on the same line.

Short patterns:
- ``\d{1,2}/\d{1,2}`` — Chase, etc.
- ``\d{1,2}-\d{1,2}``
- ``[A-Z][a-z]{2}\s+\d{1,2}`` — "Jan 13"

When parsing, short dates pass through ``parse_date`` and
return None (no year to bind to), so the scanner falls back to
the raw text — the user sees ``01/13`` in the date column and
can correct in the editor.

**2. Multi-word dates leaked the day token into the description.**
A pre-existing bug: ``_find_dates_in_words`` returned only the
START word index, and ``_description_from_row`` only excluded
that single word. For "Jan 13 Coffee $4.50", the description
became "13 Coffee" instead of "Coffee". Fixed by returning
``(start, end, text)`` with ``end`` exclusive (computed from
``len(m.group(1).split())`` so window-overrun doesn't
over-consume), and the description builder now skips the full
range.

**3. New diagnostic: ``diagnose_pdf_lines(pdf_bytes)``.** Returns
every clustered text line the scanner saw with ``has_date`` /
``has_amount`` flags. When the page's scan returns 0 rows, an
auto-expanded "what the scanner saw" expander now renders a
table of all extracted lines so the user can:

- Spot scanned-PDF cases (empty result → enable OCR)
- See which lines have a date but no amount (or vice versa)
- Eyeball the date / amount format the scanner missed

Without leaving the app or asking the developer for help.

Eight new tests cover: short US date (``01/13``), short month-
name date with two-word consumption (``Jan 13``), the
``Page 1/2 ... 01/13/2026`` shadowing case, and the multi-word-
date description fix.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 00:06:07 +00:00
bece2b4030 refactor(pdf): rip out templates; heuristic scan + selectable table
User feedback: the template / visual-picker / mode-dispatch
implementation was too complex for the actual workflow.
Statements drift between months, the canvas state didn't survive
multi-page navigation, and accountants don't want to maintain
per-bank configuration just to convert PDFs to CSV.

Start-over design — one public function, one page, no
persistence:

  ``scan_pdf_for_transactions(pdf_bytes) → (rows, warnings)``

A row is "any text line with a date pattern AND at least one
amount pattern." Each detected row is a dict shaped::

    {
      "date": "2026-01-15",
      "description": "Coffee Shop",
      "amount_1": -4.50,
      "amount_2": 1000.00,   # if a second amount was found
      "page": 1,
      "raw": "01/15/2026 Coffee Shop (4.50) 1,000.00",
      "source_file": "chase-jan-2026.pdf",
    }

Multi-line descriptions still merge (no-date no-amount lines
attach to the previous transaction). Multi-PDF batches share a
single combined table with a ``source_file`` column.

**Page UX:**

- Upload PDF(s) → optional Options expander (parens-negative,
  use-OCR) → click Scan → see all detected rows in an
  ``st.data_editor``.
- The editor has an ``Include`` checkbox column (default on),
  plus user-editable date / description / amount cells and a
  read-only ``raw`` column showing the original PDF text for
  verification.
- A ``Columns to include in CSV`` multiselect hides
  ``page`` / ``raw`` from the download by default; user can
  re-add either.
- Download CSV gets only the checked rows.

No template save/load. No visual picker. No mode dispatch. No
column boundaries. No schema migration. No per-bank
configuration files.

**Deletions:**

- ``src/pdf_templates.py`` — template storage layer
- ``src/gui/_drawable_canvas_compat.py`` — Streamlit compat shim
  for the canvas (no canvas now)
- ``tests/test_pdf_templates.py``, ``test_pdf_row_heuristic.py``,
  ``test_drawable_canvas_compat.py`` — covered the removed APIs
- ``build/hooks/hook-streamlit_drawable_canvas.py`` — hook for
  the removed dep
- ``streamlit-drawable-canvas==0.9.3`` from ``requirements.txt``
- The drawable-canvas references in ``build/datatools.spec``

**``src/pdf_extract.py``** shrinks from ~30 helper functions to
~10. Keeps: value parsers, row clusterer, date/amount token
finders, OCR pipeline, dependency guards. The one new public
function ``scan_pdf_for_transactions`` glues them together.

**Tests** (59 passing): the unit layer keeps full coverage of
the building blocks; the smoke layer pins the end-to-end PDF
roundtrip, OCR discovery, dependency-import behavior, and the
multi-line-description merge. The fpdf2-generated fixture PDF
still drives the real-PDF test.

Rollback: ``git revert HEAD`` brings back the template system if
needed — but the simpler model should make that unlikely.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 23:57:30 +00:00
60969c0770 feat(pdf): UI rework — Auto-detect is the default build flow
Pulls the user's primary mental model away from "draw column
boundaries" toward "tell me what shape your amounts have, see
detected rows, save." The visual picker that wasn't working for
multi-statement workflows is reachable but no longer the
default.

**Build mode header** now has a mode radio:

- "Auto-detect (recommended)" — row_heuristic. Tabs: Amount
  layout · Filters & date · Save. Three small forms; no
  coordinate UI anywhere. The Amount-layout tab's dropdown picks
  one of single / txn+balance / debit+credit / debit+credit+balance
  and auto-derives the min/max amount-count range (overridable
  under an expander).
- "Visual columns (advanced)" — column_visual. Five tabs (the
  original Visual picker / Pages & table / Columns / Parsing /
  Save). A yellow warning panel up top reminds the user that
  column-x templates only work when statement layout is stable.

Switching modes triggers a rerun so the right tab set renders
immediately. The template object preserves both mode's config
trees side-by-side so a user can flip between them without
losing work.

**Live preview** below the form runs ``apply_template`` against
the cached sample pages (already cached in session_state so this
re-renders cheaply on every form edit). The "no rows yet"
message is mode-aware — points users at the right tuning knobs
for whichever mode they're in. The preview caption notes which
mode produced the rows so the user can correlate decisions to
output.

The visual picker bug the user reported — "a single box stays in
the same location regardless of page" — is sidestepped rather
than fixed: in row_heuristic mode there's no canvas to confuse,
and for the rare column_visual user the canvas is still
imperfect but no longer their first interaction with the tool.
Cleaning up the column_visual canvas state bugs is a separate
follow-up if real users still hit the Advanced mode.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 23:46:27 +00:00
10015c40e1 fix(pdf): shim image_to_url for drawable-canvas on modern Streamlit
User hit ``AttributeError: module 'streamlit.elements.image' has
no attribute 'image_to_url'`` on first PDF import. Root cause:
``streamlit-drawable-canvas`` 0.9.3 (last upstream release 2023)
calls a Streamlit internal that was relocated in Streamlit
~1.30+. The function moved from ``streamlit.elements.image`` to
``streamlit.elements.lib.image_utils`` AND its signature
changed — the second positional argument is now a
``LayoutConfig`` dataclass instead of a plain ``int`` width.

Three remedies considered:

1. Downgrade Streamlit. Reverses unrelated improvements +
   security fixes; not on the table.
2. Fork drawable-canvas. The maintenance hit isn't worth it for a
   one-line internal API change.
3. **Ship a compatibility shim.** Re-attach a wrapper at the old
   import path that adapts the old call shape to the new
   function. This is the standard workaround the wider Streamlit
   community has converged on for this exact regression.

``src/gui/_drawable_canvas_compat.py`` does (3). The ``install()``
helper is idempotent, opt-in (not auto-run at module import — a
grep for ``_install_canvas_compat`` shows every call site), and
no-ops if Streamlit hasn't moved the function OR if the new
function isn't where we expect (lets the canvas surface a real
error rather than papering over a different bug). The page calls
``_install_canvas_compat()`` once at module top before any
``st_canvas`` invocation; Streamlit's script-rerun model means
this fires every page load but the ``_PATCHED`` guard makes
re-runs free.

The shim wraps the old ``width=int`` arg into a default-constructed
``LayoutConfig()`` — the old ``width=-1`` sentinel meant "use
the image's natural width", which is also what an unconfigured
LayoutConfig produces. Confirmed by inspecting Streamlit 1.57.0's
``image_utils.py``.

4 new tests pin the shim contract:

- ``install()`` attaches ``image_to_url`` to the old path on modern
  Streamlit
- Idempotent — calling twice doesn't double-wrap
- Doesn't clobber a future Streamlit that restores the original
  at the old path
- Translates ``(image, -1, False, "RGB", "PNG", "id")`` into a
  proper call to the new function with a ``LayoutConfig`` instance

If a future Streamlit upgrade moves ``image_to_url`` AGAIN, the
shim's silent-no-op fallback means the canvas error surfaces
again and points at where to look. The shim doesn't paper over
mysteries; it only patches the one specific relocation we know
about.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 23:29:20 +00:00
e6ee2e3481 feat(pdf): robust Tesseract discovery + OS-aware install copy
User tried ``brew install tesseract`` in PowerShell after seeing
all three OSes listed inline in the OCR banner — easy mistake
when the install commands are crammed on one line with ``·``
separators. Two changes pre-empt this:

**OS-aware OCR banner.** The expander now detects the user's
platform via ``platform.system()`` and shows only the relevant
install instructions:

- **Windows**: UB-Mannheim installer link, numbered steps,
  explicit "keep the Add to PATH checkbox on" callout, plus a
  fallback paragraph telling the user how to set
  ``DATATOOLS_TESSERACT_PATH`` if they already installed
  without PATH and don't want to reinstall.
- **macOS**: ``brew install tesseract`` with a Homebrew link.
- **Linux**: ``apt install tesseract-ocr`` with a "or your
  distro's equivalent" hedge.

**Robust binary discovery in ``ocr_available()``.** Three-stage:

1. Honor ``DATATOOLS_TESSERACT_PATH`` env var if set — explicit
   override for portable installs or non-default locations.
2. Try ``pytesseract``'s default PATH-based lookup.
3. If PATH lookup fails, probe known Windows install paths
   (``C:\Program Files\Tesseract-OCR\tesseract.exe``,
   the x86 variant, and ``%LOCALAPPDATA%\Programs\Tesseract-OCR\``)
   via the new ``_autodetect_tesseract_path``. On hit, set
   ``pytesseract.pytesseract.tesseract_cmd`` so all subsequent
   ``image_to_data`` calls use the same binary without
   re-discovering.

This means a user who runs the UB-Mannheim installer with
default options but forgets the PATH checkbox will still get
OCR working after a launcher restart, without env-var
gymnastics.

Tests (4 new, 85 total in the suite):

- Auto-detect returns None on non-Windows (no false positives
  on dev laptops).
- Auto-detect finds the binary at a mocked
  ``C:\Program Files\Tesseract-OCR\tesseract.exe``.
- Auto-detect returns None when no candidate exists.
- ``DATATOOLS_TESSERACT_PATH`` env var beats both PATH lookup
  and auto-detect (sets ``tesseract_cmd`` even when the path
  doesn't resolve, so a real binary at a custom location works).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 23:15:00 +00:00
2d927bc95f fix(pdf): graceful fallback when PDF dependencies aren't installed
User hit a hard ImportError on opening the PDF→CSV tool because
``pip install -r requirements.txt`` hadn't picked up the new
``pdfplumber`` / ``pypdfium2`` lines yet. Streamlit surfaces
that as an unfiltered traceback — friendlier to show a clear
install-required panel inside the tool instead.

Two changes:

1. ``src/pdf_extract.py`` lazy-imports the PDF deps via
   ``_require_pdfplumber()`` / ``_require_pdfium()`` helpers that
   raise a new ``PdfDependencyMissing`` (subclass of ImportError)
   with an actionable ``hint`` field. Pure helpers
   (``parse_amount``, ``parse_date``, ``cluster_rows``, etc.)
   keep working with no PDF dep installed — useful for tests and
   for keeping module-import paths cheap.

2. The tool page probes both deps at render time via
   ``_pdf_deps_status()``; if anything's missing it shows a
   ``st.error`` panel with the exact pip command and a
   "restart the launcher" reminder, then ``st.stop()``s before
   touching any PDF code path.

The page itself loads cleanly without the deps installed, so the
sidebar nav doesn't 500 — the user just sees the install panel
on click.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 22:59:20 +00:00
967d3f6a11 feat(pdf): OCR availability banner + per-run toggle
Phase 6/6. Final polish layer on top of the OCR pipeline that
``extract_pages_auto`` has carried since commit 1.

- **OCR status banner** at the top of the page next to the mode
  selector. Ready: a one-liner caption confirming OCR will run
  on scanned pages. Unavailable: a collapsed expander explaining
  the missing piece (``pytesseract`` binding vs. Tesseract
  binary) with install pointers for Windows, macOS, and Linux.
  The expander explicitly notes that modern text-based bank
  statements don't need OCR — most users will never expand it.
- **"Use OCR for scanned pages" toggle** in Extract mode,
  defaulting to the runtime availability. Disabled (greyed out)
  when Tesseract isn't usable, so the user can't accidentally
  set themselves up for confusing warnings. Passes through as
  ``allow_ocr`` to ``extract_pages_auto``.
- Build mode's sample-loading path continues to call
  ``extract_pages_auto(..., allow_ocr=True)`` — sample preview
  always uses OCR if available, since the user is actively
  diagnosing template fit.

No schema change. OCR's structural support is in commits 1 + 3;
this commit just makes it discoverable + opt-out.

Rolling up the 6-commit feature:

  b8aff86  Phase 1 — pure pdf_extract module + tests
  aea520d  Phase 2 — template storage layer + tests
  2f349e8  Phase 3 — Extract/Build/Manage page + nav + i18n
  5a8e2ec  Phase 4 — batch polish (ZIP, sort, status block)
  b86828d  Phase 5 — visual region picker (drawable canvas)
  THIS     Phase 6 — OCR banner + toggle

Each commit is independently revertable; rolling all the way
back to ``c16e2a5`` is ``git revert b86828d 5a8e2ec 2f349e8
aea520d b8aff86 <this>`` (or just ``git reset --hard c16e2a5``
on a clean branch).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 22:54:11 +00:00
b86828d791 feat(pdf): visual region picker on rendered sample page
Phase 5/6. Adds a "Visual picker" tab as the first stop in the
template-build flow. The sample PDF page is rasterized with
``pypdfium2`` (capped at ~900px wide for sensible display), and
``streamlit-drawable-canvas`` overlays drawing tools on top.

UX:

- **Line mode** — drag short (roughly vertical) strokes where you
  want columns to split. Each stroke's x-midpoint becomes one
  boundary in PDF point coordinates.
- **Rect mode** — drag a rectangle around the transactions
  table; bbox is preserved on the template as
  ``visual.table_bbox`` for round-trip, future use as a hard
  crop region.
- **Transform mode** — move/resize already-drawn shapes after
  the fact.

Round-trip: re-entering Build mode with an existing template
seeds the canvas with full-height vertical lines for every
boundary already on the template, plus the saved bbox if any,
so editing-after-save matches the user's mental model.

Coordinate translation: the canvas reports pixel positions; we
divide by the renderer's pixels-per-PDF-point scale to get back
to PDF coordinates that ``apply_template`` already expects. No
template-schema change required — the boundaries the picker
writes are the same list the text-input editor wrote in
commit 3, just sourced visually.

New helper in the extraction module:

- ``render_page_image(pdf_bytes, page_no, target_width=900)`` —
  rasterize a single 1-indexed page to a PIL image; returns
  ``(image, scale)`` for coordinate translation.

The text-input boundary editor in the Columns tab remains as a
fallback for power users / keyboard-only workflows and for
copy-paste from spreadsheet-derived x-positions.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 22:52:54 +00:00
5a8e2ec9e1 feat(pdf): batch extract polish — ZIP output, sort-by-date, status block
Phase 4/6. Polishes the batch workflow shipped in commit 3:

- **st.status progress block** replaces the simple progress bar.
  Each file appears as its own line as it's processed; the block
  auto-collapses on completion with a "12/13 extracted" summary
  and turns red if any file errored.
- **Sort combined output by date** checkbox (default ON) sorts
  the merged CSV ascending by date, with source_file as a stable
  secondary sort so multiple statements interleave by date but
  same-day rows from the same file stay together.
- **ZIP-of-per-PDF-CSVs output option** alongside the combined
  CSV. When the accountant has 12 statements from 12 different
  account periods and wants to feed them into 12 separate ledger
  imports, the ZIP keeps each file's rows in its own CSV named
  after the original PDF stem.
- **Per-file summary table** gets a ``status`` column ("ok" /
  "no rows" / "error: ExceptionName") so error grouping is
  obvious at a glance — already present from commit 3, now
  upgraded with the status field.

Cancellation is intentionally not added — Streamlit's single-
thread rerun model has no clean way to interrupt a tool-run
mid-stream without architectural changes to extraction. If a
user mis-fires Extract on 50 PDFs they can refresh the browser
tab; the task will be killed when the next interaction comes in.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 22:51:05 +00:00
2f349e8191 feat(pdf): tool page with Extract / Build / Manage modes
Phase 3/6. Wires the PDF Extractor into the GUI as a new
"transformations" tool with three modes selected by a horizontal
radio at the top of the page:

**Extract** — pick a saved template, upload one or more
statement PDFs (single + batch shipping together to keep the
common case one-step), get a previewed DataFrame + CSV download.
Per-file row counts and warnings are surfaced; failures on one
file don't kill the whole batch. The combined CSV gets a
``source_file`` first column so the accountant can sort/filter
by statement.

**Build template** — load an existing template or start fresh,
upload a sample PDF, edit every schema field across four tabs
(Pages & table / Columns / Parsing / Save). A live preview below
re-runs ``apply_template`` against the sample on each re-render
so the user sees their changes hit rows immediately. The column-
boundary editor is text-input ("comma-separated x-positions") for
now — replaced by the drawable-canvas visual picker in commit 5.

**Manage templates** — list with rename / delete / export
(downloads the canonical JSON) / import (uploads someone else's
JSON, validated through ``template_from_json``).

Heavy work (``extract_pages_auto``) only runs on explicit user
action (Extract / a new sample upload), and the parsed Page list
is cached in ``st.session_state`` so widget-edit reruns don't
re-parse the PDF.

Logging: tool runs and template saves both hit the audit log via
``log_event("tool_run", …)``, matching every other tool's
instrumentation pattern.

Registered in ``tools_registry.py`` under ``transformations``
with status ``Ready`` and the picture-as-pdf Material icon. i18n
keys added for en + es ("PDF to CSV" / "PDF a CSV").

OCR is wired in this commit — ``extract_pages_auto`` already
falls back through ``pytesseract`` when the binary is available,
and the warning strings it returns surface as ``st.info`` /
``st.warning`` per-file. Commit 6 will polish the OCR UX with a
status row.

Next commits build on this page:
  4 — batch progress + cancellation + per-file error grouping
  5 — drawable-canvas visual picker replaces text x-positions
  6 — OCR availability banner + scanned-page indicators

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-19 22:49:44 +00:00