First commit

2026-02-21 21:55:42 +00:00
commit 060629ca94
27 changed files with 2739 additions and 0 deletions
@@ -0,0 +1,144 @@
+"""Generate PDF: Scanned letter FROM client (simulated scan effect)."""
+
+import io
+from pathlib import Path
+from reportlab.lib.pagesizes import A4
+from reportlab.lib.units import mm
+from reportlab.pdfgen import canvas
+from reportlab.lib.colors import HexColor
+
+try:
+    from PIL import Image, ImageFilter, ImageEnhance
+    import random as _random
+
+    HAS_PIL = True
+except ImportError:
+    HAS_PIL = False
+
+
+def _create_clean_pdf(
+    buffer, from_name, from_company, from_address, to_name, to_firm, body, date
+):
+    """Create a clean PDF letter."""
+    c = canvas.Canvas(buffer, pagesize=A4)
+    w, h = A4
+
+    # Company header
+    c.setFont("Helvetica-Bold", 14)
+    c.drawString(50, h - 60, from_company)
+    c.setFont("Helvetica", 9)
+    y = h - 78
+    for line in from_address.split(","):
+        c.drawString(50, y, line.strip())
+        y -= 14
+
+    # Date
+    y -= 20
+    c.setFont("Helvetica", 11)
+    c.drawString(50, y, date)
+
+    # Recipient
+    y -= 30
+    c.drawString(50, y, f"Mr. {to_name}")
+    y -= 16
+    c.drawString(50, y, to_firm)
+    y -= 16
+    c.drawString(50, y, "Suites 3203-3207, 32/F, Edinburgh Tower, The Landmark")
+    y -= 16
+    c.drawString(50, y, "15 Queen's Road Central, Central, Hong Kong")
+
+    # Body
+    y -= 35
+    c.setFont("Helvetica", 11)
+    for para in body.split("\n\n"):
+        for line_text in _wrap_text(para.strip(), 85):
+            if y < 80:
+                c.showPage()
+                y = h - 60
+                c.setFont("Helvetica", 11)
+            c.drawString(50, y, line_text)
+            y -= 16
+        y -= 10
+
+    # Signature area
+    y -= 20
+    c.drawString(50, y, "Yours sincerely,")
+    y -= 40
+    # Simulate a signature squiggle
+    c.setStrokeColor(HexColor("#1a1a8a"))
+    c.setLineWidth(1.5)
+    import random
+
+    random.seed(hash(from_name))
+    sx = 50
+    sy = y + 10
+    c.line(sx, sy, sx + 30, sy + 8)
+    c.line(sx + 30, sy + 8, sx + 50, sy - 5)
+    c.line(sx + 50, sy - 5, sx + 80, sy + 3)
+    c.setStrokeColor(HexColor("#000000"))
+
+    y -= 10
+    c.setFont("Helvetica-Bold", 11)
+    c.drawString(50, y, from_name)
+    y -= 16
+    c.setFont("Helvetica", 10)
+    c.drawString(50, y, from_company)
+
+    c.save()
+
+
+def _wrap_text(text, max_chars):
+    """Simple word-wrap."""
+    words = text.split()
+    lines = []
+    current = ""
+    for word in words:
+        if len(current) + len(word) + 1 > max_chars:
+            lines.append(current)
+            current = word
+        else:
+            current = f"{current} {word}" if current else word
+    if current:
+        lines.append(current)
+    return lines
+
+
+def generate(
+    output_path: Path,
+    from_name: str,
+    from_company: str,
+    from_address: str,
+    to_name: str,
+    to_firm: str,
+    body: str,
+    date: str,
+):
+    """Generate a scanned-looking PDF letter."""
+    # First create a clean PDF in memory
+    buf = io.BytesIO()
+    _create_clean_pdf(
+        buf, from_name, from_company, from_address, to_name, to_firm, body, date
+    )
+    buf.seek(0)
+
+    if HAS_PIL:
+        # Convert to image, degrade slightly, save back as PDF
+        try:
+            from pdf2image import convert_from_bytes
+
+            images = convert_from_bytes(buf.read(), dpi=150)
+            if images:
+                img = images[0]
+                # Add slight grey tint (paper simulation)
+                enhancer = ImageEnhance.Brightness(img)
+                img = enhancer.enhance(0.95)
+                # Slight blur for scan effect
+                img = img.filter(ImageFilter.GaussianBlur(radius=0.3))
+                # Save as PDF
+                img.save(str(output_path), "PDF", resolution=150)
+                return
+        except Exception:
+            pass
+
+    # Fallback: save clean PDF as-is
+    output_path.write_bytes(buf.getvalue())