feat: revue de code, doc CODE_REVIEW, forfaits 2026, traduction LLM, providers avec modèle
Made-with: Cursor
This commit is contained in:
Sepehr Ramezani
@@ -2,150 +2,481 @@
|
||||
PowerPoint Translation Module
|
||||
Translates PowerPoint files while preserving all layouts, animations, and media
|
||||
OPTIMIZED: Uses batch translation for 5-10x faster processing
|
||||
|
||||
Updated to use new TranslationProvider interface with structured error handling.
|
||||
"""
|
||||
|
||||
import time
|
||||
import concurrent.futures
|
||||
from pathlib import Path
|
||||
from typing import Dict, List, Tuple, Optional, Callable, Any
|
||||
|
||||
from lxml import etree
|
||||
from pptx import Presentation
|
||||
from pptx.shapes.base import BaseShape
|
||||
from pptx.shapes.group import GroupShape
|
||||
from pptx.util import Inches, Pt
|
||||
from pptx.enum.shapes import MSO_SHAPE_TYPE
|
||||
from services.translation_service import translation_service
|
||||
from typing import List, Tuple
|
||||
import tempfile
|
||||
import os
|
||||
|
||||
from services.providers.base import TranslationProvider
|
||||
|
||||
# DrawingML namespace used by pptx XML
|
||||
_NS_A = "http://schemas.openxmlformats.org/drawingml/2006/main"
|
||||
|
||||
# Languages written right-to-left
|
||||
RTL_LANGUAGES: frozenset = frozenset(
|
||||
{"ar", "he", "fa", "ur", "ku", "ps", "ug", "sd", "yi", "dv", "ckb"}
|
||||
)
|
||||
|
||||
|
||||
try:
|
||||
import structlog
|
||||
|
||||
logger = structlog.get_logger(__name__)
|
||||
_HAS_STRUCTLOG = True
|
||||
except ImportError:
|
||||
import logging
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
_HAS_STRUCTLOG = False
|
||||
|
||||
|
||||
def _log_info(event: str, **kwargs):
|
||||
"""Log info with structlog or standard logging compatibility."""
|
||||
if _HAS_STRUCTLOG:
|
||||
logger.info(event, **kwargs)
|
||||
else:
|
||||
msg = f"{event} " + " ".join(f"{k}={v}" for k, v in kwargs.items())
|
||||
logger.info(msg)
|
||||
|
||||
|
||||
def _log_error(event: str, **kwargs):
|
||||
"""Log error with structlog or standard logging compatibility."""
|
||||
if _HAS_STRUCTLOG:
|
||||
logger.error(event, **kwargs)
|
||||
else:
|
||||
msg = f"{event} " + " ".join(f"{k}={v}" for k, v in kwargs.items())
|
||||
logger.error(msg)
|
||||
|
||||
|
||||
def _set_pptx_paragraph_rtl(paragraph) -> None:
|
||||
"""
|
||||
Enable RTL mode on a PowerPoint paragraph.
|
||||
|
||||
Sets rtl="1" and algn="r" on the <a:pPr> element, which controls
|
||||
both text direction and horizontal alignment in DrawingML.
|
||||
"""
|
||||
p_elem = paragraph._p
|
||||
tag_pPr = f"{{{_NS_A}}}pPr"
|
||||
pPr = p_elem.find(tag_pPr)
|
||||
if pPr is None:
|
||||
pPr = etree.Element(tag_pPr)
|
||||
p_elem.insert(0, pPr)
|
||||
pPr.set("rtl", "1")
|
||||
pPr.set("algn", "r")
|
||||
|
||||
|
||||
def _apply_rtl_to_presentation(presentation: Presentation) -> None:
|
||||
"""Apply RTL direction to every paragraph in all slides."""
|
||||
for slide in presentation.slides:
|
||||
for shape in slide.shapes:
|
||||
_apply_rtl_to_shape(shape)
|
||||
|
||||
|
||||
def _apply_rtl_to_shape(shape) -> None:
|
||||
"""Recursively apply RTL to a shape (handles groups and tables)."""
|
||||
if shape.has_text_frame:
|
||||
for paragraph in shape.text_frame.paragraphs:
|
||||
_set_pptx_paragraph_rtl(paragraph)
|
||||
|
||||
if shape.shape_type == MSO_SHAPE_TYPE.TABLE:
|
||||
for row in shape.table.rows:
|
||||
for cell in row.cells:
|
||||
for paragraph in cell.text_frame.paragraphs:
|
||||
_set_pptx_paragraph_rtl(paragraph)
|
||||
|
||||
if shape.shape_type == MSO_SHAPE_TYPE.GROUP:
|
||||
for sub_shape in shape.shapes:
|
||||
_apply_rtl_to_shape(sub_shape)
|
||||
|
||||
|
||||
class PptxProcessorError(Exception):
|
||||
"""Exception for PowerPoint processing errors with structured error codes."""
|
||||
|
||||
INVALID_FORMAT = "INVALID_FORMAT"
|
||||
PPTX_CORRUPTED = "PPTX_CORRUPTED"
|
||||
PPTX_READ_ERROR = "PPTX_READ_ERROR"
|
||||
PPTX_WRITE_ERROR = "PPTX_WRITE_ERROR"
|
||||
PPTX_TOO_LARGE = "PPTX_TOO_LARGE"
|
||||
|
||||
ERROR_MESSAGES = {
|
||||
INVALID_FORMAT: "Format de fichier non supporte. Utilisez .pptx.",
|
||||
PPTX_CORRUPTED: "Le fichier PowerPoint est corrompu ou illisible.",
|
||||
PPTX_READ_ERROR: "Erreur lors de la lecture du fichier PowerPoint.",
|
||||
PPTX_WRITE_ERROR: "Erreur lors de la creation du fichier traduit.",
|
||||
PPTX_TOO_LARGE: "Le fichier est trop volumineux (max 50 Mo).",
|
||||
}
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
code: str,
|
||||
message: Optional[str] = None,
|
||||
details: Optional[Dict[str, Any]] = None,
|
||||
):
|
||||
self.code = code
|
||||
self.message = message or self.ERROR_MESSAGES.get(code, "Erreur inconnue")
|
||||
self.details = details or {}
|
||||
super().__init__(self.message)
|
||||
|
||||
def to_dict(self) -> Dict[str, Any]:
|
||||
"""Convert error to dictionary format for API responses."""
|
||||
result = {"error": self.code, "message": self.message}
|
||||
if self.details:
|
||||
result["details"] = self.details
|
||||
return result
|
||||
|
||||
|
||||
class PowerPointTranslator:
|
||||
"""Handles translation of PowerPoint presentations with strict formatting preservation"""
|
||||
|
||||
def __init__(self):
|
||||
self.translation_service = translation_service
|
||||
|
||||
def translate_file(self, input_path: Path, output_path: Path, target_language: str) -> Path:
|
||||
"""
|
||||
Handles translation of PowerPoint presentations with strict formatting preservation.
|
||||
|
||||
Uses the new TranslationProvider interface for improved error handling
|
||||
and fallback chain support.
|
||||
"""
|
||||
|
||||
MAX_FILE_SIZE_MB = 50
|
||||
PPTX_MAGIC_BYTES = b"PK" # .pptx files are ZIP archives
|
||||
|
||||
def __init__(self, provider: Optional[TranslationProvider] = None):
|
||||
"""
|
||||
Initialize PowerPointTranslator.
|
||||
|
||||
Args:
|
||||
provider: TranslationProvider instance for translations.
|
||||
If None, will use fallback to legacy translation_service.
|
||||
"""
|
||||
self._provider = provider
|
||||
self._custom_prompt: Optional[str] = None
|
||||
|
||||
def set_provider(self, provider: TranslationProvider) -> None:
|
||||
"""Set the translation provider."""
|
||||
self._provider = provider
|
||||
|
||||
def set_custom_prompt(self, prompt: Optional[str]) -> None:
|
||||
"""Set custom system prompt for LLM providers."""
|
||||
self._custom_prompt = prompt
|
||||
|
||||
def translate_file(
|
||||
self,
|
||||
input_path: Path,
|
||||
output_path: Path,
|
||||
target_language: str,
|
||||
source_language: str = "auto",
|
||||
progress_callback: Optional[Callable[[Dict[str, Any]], None]] = None,
|
||||
) -> Path:
|
||||
"""
|
||||
Translate a PowerPoint presentation while preserving all formatting.
|
||||
Uses batch translation for improved performance.
|
||||
|
||||
Args:
|
||||
input_path: Path to input PowerPoint file
|
||||
output_path: Path for translated output file
|
||||
target_language: Target language code (e.g., 'fr', 'en')
|
||||
source_language: Source language code (default: auto-detect)
|
||||
progress_callback: Optional callback for progress updates
|
||||
Receives dict with: slide, total_slides, runs_translated
|
||||
|
||||
Returns:
|
||||
Path to translated file
|
||||
|
||||
Raises:
|
||||
PptxProcessorError: If file is invalid, corrupted, or processing fails
|
||||
"""
|
||||
presentation = Presentation(input_path)
|
||||
|
||||
# Collect all translatable text elements
|
||||
text_elements = [] # List of (text, setter_function)
|
||||
image_shapes = [] # Collect images for separate processing
|
||||
|
||||
for slide_idx, slide in enumerate(presentation.slides):
|
||||
# Collect from notes
|
||||
if slide.has_notes_slide and slide.notes_slide.notes_text_frame:
|
||||
self._collect_from_text_frame(slide.notes_slide.notes_text_frame, text_elements)
|
||||
|
||||
# Collect from shapes
|
||||
for shape in slide.shapes:
|
||||
self._collect_from_shape(shape, text_elements, slide, image_shapes)
|
||||
|
||||
# Batch translate all texts at once
|
||||
if text_elements:
|
||||
texts = [elem[0] for elem in text_elements]
|
||||
print(f"Batch translating {len(texts)} text segments...")
|
||||
translated_texts = self.translation_service.translate_batch(texts, target_language)
|
||||
|
||||
# Apply translations
|
||||
for (original_text, setter), translated in zip(text_elements, translated_texts):
|
||||
if translated is not None and setter is not None:
|
||||
try:
|
||||
setter(translated)
|
||||
except Exception as e:
|
||||
print(f"Error applying translation: {e}")
|
||||
|
||||
# Translate images if enabled (separate process, can't batch)
|
||||
if getattr(self.translation_service, 'translate_images', False):
|
||||
for shape, slide in image_shapes:
|
||||
self._translate_image_shape(shape, target_language, slide)
|
||||
|
||||
presentation.save(output_path)
|
||||
|
||||
return output_path
|
||||
|
||||
def _collect_from_shape(self, shape: BaseShape, text_elements: List[Tuple[str, callable]], slide=None, image_shapes=None):
|
||||
"""Collect text from a shape and its children"""
|
||||
# Handle text-containing shapes
|
||||
start_time = time.time()
|
||||
|
||||
input_path = Path(input_path)
|
||||
output_path = Path(output_path)
|
||||
|
||||
self._validate_file(input_path)
|
||||
|
||||
try:
|
||||
presentation = Presentation(input_path)
|
||||
except Exception as e:
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.PPTX_CORRUPTED,
|
||||
details={"file_name": input_path.name, "error": str(e)},
|
||||
)
|
||||
|
||||
try:
|
||||
runs_translated = 0
|
||||
total_slides = len(presentation.slides)
|
||||
|
||||
if progress_callback:
|
||||
progress_callback(
|
||||
{
|
||||
"current": 0,
|
||||
"total": total_slides,
|
||||
"slide": 0,
|
||||
"total_slides": total_slides,
|
||||
"runs_translated": 0,
|
||||
}
|
||||
)
|
||||
|
||||
text_elements: List[Tuple[str, Callable[[str], None]]] = []
|
||||
|
||||
for slide_idx, slide in enumerate(presentation.slides):
|
||||
if slide.has_notes_slide and slide.notes_slide.notes_text_frame:
|
||||
self._collect_from_text_frame(
|
||||
slide.notes_slide.notes_text_frame, text_elements
|
||||
)
|
||||
|
||||
for shape in slide.shapes:
|
||||
self._collect_from_shape(shape, text_elements)
|
||||
|
||||
if progress_callback:
|
||||
progress_callback(
|
||||
{
|
||||
"current": slide_idx + 1,
|
||||
"total": total_slides,
|
||||
"slide": slide_idx + 1,
|
||||
"total_slides": total_slides,
|
||||
"runs_translated": runs_translated,
|
||||
}
|
||||
)
|
||||
|
||||
if text_elements:
|
||||
texts = [elem[0] for elem in text_elements]
|
||||
total_elements = len(texts)
|
||||
_log_info(
|
||||
"pptx_batch_translation_start",
|
||||
file_name=input_path.name,
|
||||
text_count=total_elements,
|
||||
target_lang=target_language,
|
||||
)
|
||||
|
||||
# Parallel chunk translation with real-time progress.
|
||||
CHUNK_SIZE = 15
|
||||
MAX_WORKERS = 6
|
||||
chunks = [
|
||||
(i, texts[i : i + CHUNK_SIZE])
|
||||
for i in range(0, total_elements, CHUNK_SIZE)
|
||||
]
|
||||
translated_texts: List[str] = [""] * total_elements
|
||||
completed_items = [0]
|
||||
|
||||
def _translate_chunk(
|
||||
chunk_idx: int, chunk: List[str]
|
||||
) -> Tuple[int, List[str]]:
|
||||
return chunk_idx, self._batch_translate(
|
||||
chunk, target_language, source_language
|
||||
)
|
||||
|
||||
with concurrent.futures.ThreadPoolExecutor(max_workers=MAX_WORKERS) as pool:
|
||||
future_map = {
|
||||
pool.submit(_translate_chunk, idx, chunk): (idx, chunk)
|
||||
for idx, chunk in chunks
|
||||
}
|
||||
for future in concurrent.futures.as_completed(future_map):
|
||||
chunk_idx, translated_chunk = future.result()
|
||||
for j, t in enumerate(translated_chunk):
|
||||
translated_texts[chunk_idx + j] = t
|
||||
completed_items[0] += len(translated_chunk)
|
||||
if progress_callback:
|
||||
done = min(completed_items[0], total_elements)
|
||||
progress_callback(
|
||||
{
|
||||
"current": done,
|
||||
"total": total_elements,
|
||||
"slide": done,
|
||||
"total_slides": total_elements,
|
||||
"runs_translated": runs_translated,
|
||||
}
|
||||
)
|
||||
|
||||
# Apply translations
|
||||
for i, ((original_text, setter), translated) in enumerate(
|
||||
zip(text_elements, translated_texts)
|
||||
):
|
||||
if translated is not None and setter is not None:
|
||||
try:
|
||||
setter(translated)
|
||||
runs_translated += 1
|
||||
except Exception as e:
|
||||
_log_error(
|
||||
"pptx_setter_error",
|
||||
error=str(e),
|
||||
index=i,
|
||||
)
|
||||
|
||||
# Apply RTL layout when the target language is written right-to-left.
|
||||
if target_language.lower() in RTL_LANGUAGES:
|
||||
_apply_rtl_to_presentation(presentation)
|
||||
|
||||
try:
|
||||
presentation.save(output_path)
|
||||
except Exception as e:
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.PPTX_WRITE_ERROR,
|
||||
details={"file_name": output_path.name, "error": str(e)},
|
||||
)
|
||||
|
||||
processing_time_ms = round((time.time() - start_time) * 1000, 2)
|
||||
|
||||
_log_info(
|
||||
"pptx_translation_success",
|
||||
file_name=input_path.name,
|
||||
slides_count=total_slides,
|
||||
runs_translated=runs_translated,
|
||||
source_lang=source_language,
|
||||
target_lang=target_language,
|
||||
processing_time_ms=processing_time_ms,
|
||||
)
|
||||
|
||||
return output_path
|
||||
|
||||
except PptxProcessorError:
|
||||
raise
|
||||
except Exception as e:
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.PPTX_READ_ERROR,
|
||||
details={"file_name": input_path.name, "error": str(e)},
|
||||
)
|
||||
|
||||
def _validate_file(self, file_path: Path) -> None:
|
||||
"""Validate file format and size."""
|
||||
if not file_path.exists():
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.PPTX_READ_ERROR,
|
||||
message=f"Fichier introuvable: {file_path.name}",
|
||||
details={"file_name": file_path.name},
|
||||
)
|
||||
|
||||
if file_path.suffix.lower() != ".pptx":
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.INVALID_FORMAT,
|
||||
details={
|
||||
"file_name": file_path.name,
|
||||
"extension": file_path.suffix,
|
||||
"expected": ".pptx",
|
||||
},
|
||||
)
|
||||
|
||||
with open(file_path, "rb") as f:
|
||||
header = f.read(4)
|
||||
if header[:2] != self.PPTX_MAGIC_BYTES:
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.INVALID_FORMAT,
|
||||
details={"file_name": file_path.name, "reason": "Invalid file header"},
|
||||
)
|
||||
|
||||
file_size_mb = file_path.stat().st_size / (1024 * 1024)
|
||||
if file_size_mb > self.MAX_FILE_SIZE_MB:
|
||||
raise PptxProcessorError(
|
||||
code=PptxProcessorError.PPTX_TOO_LARGE,
|
||||
details={
|
||||
"file_name": file_path.name,
|
||||
"size_mb": round(file_size_mb, 2),
|
||||
"max_mb": self.MAX_FILE_SIZE_MB,
|
||||
},
|
||||
)
|
||||
|
||||
def _batch_translate(
|
||||
self, texts: List[str], target_language: str, source_language: str = "auto"
|
||||
) -> List[str]:
|
||||
"""
|
||||
Batch translate using new provider interface.
|
||||
|
||||
Args:
|
||||
texts: List of texts to translate
|
||||
target_language: Target language code
|
||||
source_language: Source language code
|
||||
|
||||
Returns:
|
||||
List of translated texts (same order as input)
|
||||
"""
|
||||
if not texts:
|
||||
return []
|
||||
|
||||
if self._provider is not None:
|
||||
return self._translate_with_provider(
|
||||
texts, target_language, source_language
|
||||
)
|
||||
|
||||
return self._translate_with_legacy(texts, target_language, source_language)
|
||||
|
||||
def _translate_with_provider(
|
||||
self, texts: List[str], target_language: str, source_language: str
|
||||
) -> List[str]:
|
||||
"""Translate using the TranslationProvider.translate_batch() interface."""
|
||||
translated = self._provider.translate_batch(texts, target_language, source_language)
|
||||
return [
|
||||
t if (t and t.strip()) else orig
|
||||
for t, orig in zip(translated, texts)
|
||||
]
|
||||
|
||||
def _translate_with_legacy(
|
||||
self, texts: List[str], target_language: str, source_language: str
|
||||
) -> List[str]:
|
||||
"""Fallback to legacy translation_service for backward compatibility."""
|
||||
from services.translation_service import translation_service
|
||||
|
||||
_log_info(
|
||||
"pptx_using_legacy_service",
|
||||
text_count=len(texts),
|
||||
target_lang=target_language,
|
||||
)
|
||||
|
||||
return translation_service.translate_batch(
|
||||
texts, target_language, source_language
|
||||
)
|
||||
|
||||
def _collect_from_shape(
|
||||
self, shape: BaseShape, text_elements: List[Tuple[str, Callable[[str], None]]]
|
||||
) -> None:
|
||||
"""Collect text from a shape and its children."""
|
||||
if shape.has_text_frame:
|
||||
self._collect_from_text_frame(shape.text_frame, text_elements)
|
||||
|
||||
# Handle tables
|
||||
|
||||
if shape.shape_type == MSO_SHAPE_TYPE.TABLE:
|
||||
for row in shape.table.rows:
|
||||
for cell in row.cells:
|
||||
self._collect_from_text_frame(cell.text_frame, text_elements)
|
||||
|
||||
# Handle pictures/images
|
||||
if shape.shape_type == MSO_SHAPE_TYPE.PICTURE and image_shapes is not None:
|
||||
image_shapes.append((shape, slide))
|
||||
|
||||
# Handle group shapes
|
||||
|
||||
if shape.shape_type == MSO_SHAPE_TYPE.GROUP:
|
||||
for sub_shape in shape.shapes:
|
||||
self._collect_from_shape(sub_shape, text_elements, slide, image_shapes)
|
||||
|
||||
# Handle smart art
|
||||
if hasattr(shape, 'shapes'):
|
||||
self._collect_from_shape(sub_shape, text_elements)
|
||||
|
||||
if hasattr(shape, "shapes"):
|
||||
try:
|
||||
for sub_shape in shape.shapes:
|
||||
self._collect_from_shape(sub_shape, text_elements, slide, image_shapes)
|
||||
except:
|
||||
self._collect_from_shape(sub_shape, text_elements)
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
def _collect_from_text_frame(self, text_frame, text_elements: List[Tuple[str, callable]]):
|
||||
"""Collect text from a text frame"""
|
||||
|
||||
def _collect_from_text_frame(
|
||||
self, text_frame, text_elements: List[Tuple[str, Callable[[str], None]]]
|
||||
) -> None:
|
||||
"""Collect text from a text frame, preserving leading/trailing whitespace."""
|
||||
if not text_frame.text.strip():
|
||||
return
|
||||
|
||||
|
||||
for paragraph in text_frame.paragraphs:
|
||||
if not paragraph.text.strip():
|
||||
continue
|
||||
|
||||
|
||||
for run in paragraph.runs:
|
||||
if run.text and run.text.strip():
|
||||
def make_setter(r):
|
||||
def setter(text):
|
||||
r.text = text
|
||||
original = run.text
|
||||
leading = original[: len(original) - len(original.lstrip())]
|
||||
trailing = original[len(original.rstrip()) :]
|
||||
stripped = original.strip()
|
||||
|
||||
def make_setter(r, lead: str, trail: str):
|
||||
def setter(text: str) -> None:
|
||||
r.text = lead + text.strip() + trail
|
||||
|
||||
return setter
|
||||
text_elements.append((run.text, make_setter(run)))
|
||||
|
||||
def _translate_image_shape(self, shape, target_language: str, slide):
|
||||
"""Translate text in an image using vision model"""
|
||||
from services.translation_service import OllamaTranslationProvider
|
||||
|
||||
if not isinstance(self.translation_service.provider, OllamaTranslationProvider):
|
||||
return
|
||||
|
||||
try:
|
||||
image_blob = shape.image.blob
|
||||
ext = shape.image.ext
|
||||
|
||||
with tempfile.NamedTemporaryFile(suffix=f'.{ext}', delete=False) as tmp:
|
||||
tmp.write(image_blob)
|
||||
tmp_path = tmp.name
|
||||
|
||||
translated_text = self.translation_service.provider.translate_image(tmp_path, target_language)
|
||||
os.unlink(tmp_path)
|
||||
|
||||
if translated_text and translated_text.strip():
|
||||
left = shape.left
|
||||
top = shape.top + shape.height + Inches(0.1)
|
||||
width = shape.width
|
||||
height = Inches(0.5)
|
||||
|
||||
textbox = slide.shapes.add_textbox(left, top, width, height)
|
||||
tf = textbox.text_frame
|
||||
p = tf.paragraphs[0]
|
||||
p.text = f"[{translated_text}]"
|
||||
p.font.size = Pt(10)
|
||||
p.font.italic = True
|
||||
|
||||
print(f"Added image translation: {translated_text[:50]}...")
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error translating image: {e}")
|
||||
|
||||
text_elements.append((stripped, make_setter(run, leading, trailing)))
|
||||
|
||||
|
||||
# Global translator instance
|
||||
pptx_translator = PowerPointTranslator()
|
||||
|
||||
Reference in New Issue
Block a user