feat: pallets and boxes for deals

generators/base_pdf_card_generator/base_pdf_card_generator.py

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+import os
+
+from reportlab.lib.styles import ParagraphStyle, getSampleStyleSheet
+from reportlab.lib.units import mm
+from reportlab.pdfbase import pdfmetrics
+from reportlab.pdfbase.ttfonts import TTFont
+from reportlab.platypus import SimpleDocTemplate
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from constants import APP_PATH
+
+
+class BasePdfCardGenerator:
+    def __init__(self, session: AsyncSession):
+        self._session = session
+        assets_folder = os.path.join(APP_PATH, 'assets')
+        fonts_folder = os.path.join(assets_folder, 'fonts')
+        font_file_path = os.path.join(fonts_folder, 'DejaVuSans.ttf')
+        self.page_width = 58 * mm
+        self.page_height = 40 * mm
+        pdfmetrics.registerFont(TTFont('DejaVuSans', font_file_path))
+
+        self.styles = getSampleStyleSheet()
+        self._set_small_paragraph_styles()
+        self._set_medium_paragraph_styles()
+
+    def _set_small_paragraph_styles(self):
+        common_paragraph_style = {
+            "parent": self.styles['Normal'],
+            "fontName": "DejaVuSans",
+            "spaceAfter": 4,
+            "fontSize": 9,
+        }
+
+        self.small_style = ParagraphStyle(
+            'Small',
+            alignment=0,
+            **common_paragraph_style,
+        )
+
+        self.small_centered_style = ParagraphStyle(
+            'SmallCentered',
+            alignment=1,
+            **common_paragraph_style,
+        )
+
+    def _set_medium_paragraph_styles(self):
+        self.medium_style = ParagraphStyle(
+            'Medium',
+            parent=self.styles['Normal'],
+            fontName="DejaVuSans",
+            spaceAfter=6,
+            fontSize=12,
+            alignment=0,
+        )
+
+    def _create_doc(self, buffer):
+        return SimpleDocTemplate(
+            buffer,
+            pagesize=(self.page_width, self.page_height),
+            rightMargin=1,
+            leftMargin=1,
+            topMargin=1,
+            bottomMargin=1
+        )