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Daichi Narushima b5e82e71c7 Add trading session helpers and extend ThrottledHistoryUpdater (#25)
* Add trading session helpers and extend ThrottledHistoryUpdater

Introduce mt5cli.trading with mt5_trading_session() for Mt5TradingClient
lifecycle management and reusable operational helpers for position-side
detection, margin/volume sizing, and protective order price derivation.

Extend ThrottledHistoryUpdater to validate inputs before updates and to
optionally suppress ValueError, OSError, and missing-method errors without
advancing the throttle timestamp.

Export the new helpers from mt5cli.__init__, add unit tests with mocked
clients, and document migration guidance for downstream projects such as
mteor.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Narrow ThrottledHistoryUpdater suppress_errors handling (#27)

* Narrow ThrottledHistoryUpdater suppress_errors for MT5 capability only

Remove broad AttributeError/TypeError handling from recoverable errors.
Add _is_mt5_client_capability_error() to detect missing history API methods
or non-callable client attributes by message and attribute name.

Generic AttributeError/TypeError values always propagate even when
suppress_errors=True. Update docs and tests accordingly.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Detect non-callable history client methods in suppress_errors

Address review feedback: when a history API attribute exists but is not
callable, Python raises a generic TypeError. Inspect the traceback for
mt5cli.history client call sites so these capability mismatches are still
suppressed without matching all TypeError values.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Address PR review feedback on trading helpers

- Resolve history module path once at import time
- Only treat non-callable TypeErrors as capability errors at the raise site
- Validate SL/TP ratios in determine_order_limits
- Add tests for margin_free edge cases, body-raise shutdown, and internal TypeError propagation
- Clarify ThrottledHistoryUpdater suppress_errors docs
- Split README migration example into trading vs read-only history sessions

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

* Tighten protective ratio validation and clamp negative margin_free

Add _require_protective_ratio enforcing 0 <= ratio < 1 for SL/TP limits so
a ratio of 1.0 cannot produce zero protective prices. Clamp negative
margin_free to 0.0 in calculate_margin_and_volume before sizing.

Add boundary and negative-margin tests; document constraints in trading API
docs.

Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Daichi Narushima <dceoy@users.noreply.github.com>
2026-06-11 19:32:52 +09:00

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YAML

site_name: mt5cli API Documentation
site_description: Command-line tool for MetaTrader 5
site_author: dceoy
site_url: https://github.com/dceoy/mt5cli
repo_name: dceoy/mt5cli
repo_url: https://github.com/dceoy/mt5cli
theme:
name: material
palette:
- scheme: default
primary: blue
accent: blue
toggle:
icon: material/brightness-7
name: Switch to dark mode
- scheme: slate
primary: blue
accent: blue
toggle:
icon: material/brightness-4
name: Switch to light mode
features:
- content.code.annotate
- content.code.copy
- content.code.mermaid
- navigation.indexes
- navigation.sections
- navigation.tabs
- navigation.top
- search.highlight
- search.share
- search.suggest
- toc.follow
plugins:
- search
- mkdocstrings:
handlers:
python:
paths: [.]
options:
show_source: true
show_root_heading: true
show_root_toc_entry: true
docstring_style: google
docstring_section_style: table
separate_signature: true
show_signature_annotations: true
signature_crossrefs: true
merge_init_into_class: true
show_if_no_docstring: true
nav:
- Home: index.md
- API Reference:
- Overview: api/index.md
- CLI: api/cli.md
- SDK: api/sdk.md
- Trading: api/trading.md
- History Collection (SQLite): api/history.md
- Utils: api/utils.md
markdown_extensions:
- admonition
- pymdownx.details
- pymdownx.superfences
- pymdownx.highlight:
anchor_linenums: true
- pymdownx.inlinehilite
- pymdownx.snippets
- pymdownx.tabbed:
alternate_style: true
- toc:
permalink: true