588 lines
23 KiB
Python
588 lines
23 KiB
Python
"""
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pdf_export.py
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-------------
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Generates a professional PDF report for a completed inspection.
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Uses ReportLab Platypus (flow-based layout) so the document repaginates
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cleanly regardless of how many form fields or issues exist.
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Public API
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----------
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generate_inspection_pdf(inspection, form_fields, form_data, issues,
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static_folder) -> bytes
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"""
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import io
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import os
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import json
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from datetime import datetime
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from reportlab.lib.pagesizes import letter
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from reportlab.lib import colors
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from reportlab.lib.units import inch
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from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
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from reportlab.lib.enums import TA_LEFT, TA_CENTER, TA_RIGHT
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from reportlab.platypus import (
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SimpleDocTemplate, Paragraph, Spacer, Table, TableStyle,
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HRFlowable, KeepTogether, Image as RLImage
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)
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# ── Colour palette (matches the web UI) ──────────────────────────────────────
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C_DARK = colors.HexColor('#1a1d23')
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C_BLUE = colors.HexColor('#2563eb')
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C_SLATE = colors.HexColor('#64748b')
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C_LIGHT = colors.HexColor('#f1f5f9')
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C_BORDER = colors.HexColor('#e2e8f0')
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C_GREEN = colors.HexColor('#16a34a')
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C_YELLOW = colors.HexColor('#d97706')
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C_RED = colors.HexColor('#dc2626')
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C_WHITE = colors.white
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SEVERITY_COLORS = {
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'critical': C_RED,
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'high': C_RED,
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'medium': C_YELLOW,
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'low': C_SLATE,
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}
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STATUS_COLORS = {
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'completed': C_GREEN,
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'flagged': C_RED,
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'in_progress': C_YELLOW,
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}
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# ── Style sheet ───────────────────────────────────────────────────────────────
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def _build_styles():
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base = getSampleStyleSheet()
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def add(name, parent='Normal', **kw):
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base.add(ParagraphStyle(name=name, parent=base[parent], **kw))
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add('ReportTitle', parent='Normal',
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fontSize=18, textColor=C_WHITE, fontName='Helvetica-Bold',
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spaceAfter=2)
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add('ReportSub', parent='Normal',
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fontSize=9, textColor=colors.HexColor('#94a3b8'),
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fontName='Helvetica', spaceAfter=0)
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add('SectionHead', parent='Normal',
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fontSize=10, textColor=C_DARK, fontName='Helvetica-Bold',
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spaceBefore=8, spaceAfter=4)
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add('FieldLabel', parent='Normal',
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fontSize=7.5, textColor=C_SLATE, fontName='Helvetica',
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spaceAfter=1)
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add('FieldValue', parent='Normal',
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fontSize=8.5, textColor=C_DARK, fontName='Helvetica',
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spaceAfter=2)
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add('MetaLabel', parent='Normal',
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fontSize=7, textColor=C_SLATE, fontName='Helvetica',
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spaceAfter=0)
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add('MetaValue', parent='Normal',
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fontSize=9, textColor=C_DARK, fontName='Helvetica-Bold',
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spaceAfter=0)
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add('IssueDesc', parent='Normal',
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fontSize=8, textColor=C_DARK, fontName='Helvetica',
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spaceAfter=2)
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add('FooterStyle', parent='Normal',
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fontSize=7, textColor=C_SLATE, fontName='Helvetica',
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alignment=TA_CENTER)
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return base
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STYLES = _build_styles()
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# ── Header / footer callbacks ─────────────────────────────────────────────────
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def _on_page(canvas, doc, title, generated_at):
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"""Draw page header band and footer on every page."""
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w, h = letter
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margin = 0.65 * inch
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# ── Dark header band ──
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canvas.saveState()
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canvas.setFillColor(C_DARK)
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canvas.rect(0, h - 1.1 * inch, w, 1.1 * inch, stroke=0, fill=1)
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canvas.setFont('Helvetica-Bold', 13)
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canvas.setFillColor(C_WHITE)
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canvas.drawString(margin, h - 0.55 * inch, title)
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canvas.setFont('Helvetica', 8)
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canvas.setFillColor(colors.HexColor('#94a3b8'))
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canvas.drawString(margin, h - 0.78 * inch, 'Janitorial Quality Control System')
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# Page number — right-aligned
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page_txt = f'Page {doc.page}'
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canvas.setFont('Helvetica', 8)
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canvas.setFillColor(colors.HexColor('#94a3b8'))
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canvas.drawRightString(w - margin, h - 0.66 * inch, page_txt)
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canvas.restoreState()
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# ── Footer ──
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canvas.saveState()
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canvas.setStrokeColor(C_BORDER)
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canvas.line(margin, 0.55 * inch, w - margin, 0.55 * inch)
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canvas.setFont('Helvetica', 7)
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canvas.setFillColor(C_SLATE)
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canvas.drawString(margin, 0.35 * inch,
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f'Generated: {generated_at} | Janitorial QC System')
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canvas.drawRightString(w - margin, 0.35 * inch, 'CONFIDENTIAL')
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canvas.restoreState()
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# ── Score badge helper ────────────────────────────────────────────────────────
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def _score_color(score):
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if score is None:
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return C_SLATE
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s = float(score)
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if s >= 90:
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return C_GREEN
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if s >= 70:
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return C_YELLOW
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return C_RED
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# ── Meta info table ───────────────────────────────────────────────────────────
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def _meta_table(inspection):
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"""Render a 6-column label/value grid covering the key inspection metadata."""
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date_str = inspection.inspection_date.strftime('%B %d, %Y')
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time_str = inspection.inspection_date.strftime('%I:%M %p ET')
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completed = (inspection.completed_at.strftime('%B %d, %Y %I:%M %p ET')
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if inspection.completed_at else '—')
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score_val = (f'{float(inspection.overall_score):.1f}%'
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if inspection.overall_score is not None else '—')
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status_txt = inspection.status.replace('_', ' ').title()
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area_txt = inspection.area.name if inspection.area else '—'
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def lbl(text):
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return Paragraph(text, STYLES['MetaLabel'])
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def val(text):
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return Paragraph(str(text), STYLES['MetaValue'])
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# Each row: alternating label / value columns (6 cols total)
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rows = [
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[lbl('INSPECTOR'), val(inspection.inspector.username),
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lbl('DATE'), val(date_str),
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lbl('TIME'), val(time_str)],
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[lbl('FACILITY'), val(inspection.facility.name),
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lbl('AREA'), val(area_txt),
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lbl('COMPLETED'), val(completed)],
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[lbl('TEMPLATE'), val(inspection.template.name),
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lbl('FREQUENCY'), val(inspection.template.frequency.title()),
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lbl('STATUS / SCORE'), val(f'{status_txt} {score_val}')],
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]
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col_w = (letter[0] - 1.3 * inch) / 6
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tbl = Table(rows, colWidths=[col_w] * 6)
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tbl.setStyle(TableStyle([
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('BACKGROUND', (0, 0), (-1, -1), C_LIGHT),
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('BOX', (0, 0), (-1, -1), 0.5, C_BORDER),
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('INNERGRID', (0, 0), (-1, -1), 0.5, C_BORDER),
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('VALIGN', (0, 0), (-1, -1), 'TOP'),
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('LEFTPADDING', (0, 0), (-1, -1), 8),
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('RIGHTPADDING', (0, 0), (-1, -1), 8),
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('TOPPADDING', (0, 0), (-1, -1), 5),
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('BOTTOMPADDING',(0, 0), (-1, -1), 5),
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# Label rows get a lighter text treatment (already in STYLES['MetaLabel'])
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('TEXTCOLOR', (0, 0), (-1, -1), C_DARK),
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]))
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return tbl
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# ── Score banner ──────────────────────────────────────────────────────────────
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def _score_banner(inspection):
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score = inspection.overall_score
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score_txt = f'{float(score):.1f}%' if score is not None else 'N/A'
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sc = _score_color(score)
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grade = 'PASS' if (score is not None and float(score) >= 70) else 'FAIL'
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grade_color = C_GREEN if grade == 'PASS' else C_RED
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data = [[
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Paragraph(f'<font color="white"><b>Overall Score</b></font>',
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ParagraphStyle('x', fontName='Helvetica-Bold', fontSize=9,
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textColor=C_WHITE, alignment=TA_CENTER)),
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Paragraph(f'<font color="white"><b>{score_txt}</b></font>',
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ParagraphStyle('x2', fontName='Helvetica-Bold', fontSize=22,
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textColor=C_WHITE, alignment=TA_CENTER)),
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Paragraph(f'<font color="white"><b>{grade}</b></font>',
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ParagraphStyle('x3', fontName='Helvetica-Bold', fontSize=14,
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textColor=C_WHITE, alignment=TA_CENTER)),
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]]
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w = letter[0] - 1.3 * inch
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tbl = Table(data, colWidths=[w * 0.35, w * 0.35, w * 0.30])
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tbl.setStyle(TableStyle([
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('BACKGROUND', (0, 0), (1, 0), sc),
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('BACKGROUND', (2, 0), (2, 0), grade_color),
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('VALIGN', (0, 0), (-1, -1), 'MIDDLE'),
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('TOPPADDING', (0, 0), (-1, -1), 10),
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('BOTTOMPADDING',(0, 0), (-1, -1), 10),
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('LEFTPADDING', (0, 0), (-1, -1), 8),
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('RIGHTPADDING', (0, 0), (-1, -1), 8),
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]))
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return tbl
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# ── Form fields section ───────────────────────────────────────────────────────
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def _star_string(score, max_stars=5):
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filled = min(int(score), max_stars)
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return '★' * filled + '☆' * (max_stars - filled)
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_SKIP_TYPES = {'button_submit', 'button_print', 'button_email'}
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_GRID_COLS = 12 # matches the web UI 12-column grid
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def _form_fields_section(form_fields, form_data, static_folder):
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"""
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Reconstruct the web UI grid layout in PDF form.
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Fields are grouped by their grid row number. Within each row the fields
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are placed side-by-side with column widths proportional to their colSpan.
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Section headings (type='section') are rendered as full-width banners
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between groups of rows, exactly as they appear in the web UI.
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"""
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story = []
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story.append(Paragraph('Inspection Results', STYLES['SectionHead']))
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story.append(HRFlowable(width='100%', thickness=1, color=C_BORDER, spaceAfter=6))
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FULL_W = letter[0] - 1.3 * inch # usable page width
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UNIT = FULL_W / _GRID_COLS # width of one grid column unit
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# ── Group fields by row number, preserving original order ────────────────
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from collections import defaultdict, OrderedDict
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rows_map = OrderedDict() # row_num -> [field, ...]
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sections = {} # row_num -> section label that precedes this row
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pending_section = None
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for field in form_fields:
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ftype = field.get('type', '')
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if ftype in ('button_submit', 'button_print', 'button_email'):
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continue
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if ftype == 'section':
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pending_section = field.get('label', '')
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continue
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row_num = field.get('row', 0)
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if row_num not in rows_map:
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rows_map[row_num] = []
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if pending_section is not None:
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sections[row_num] = pending_section
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pending_section = None
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rows_map[row_num].append(field)
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# ── Render row by row ─────────────────────────────────────────────────────
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for row_num, fields_in_row in rows_map.items():
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# Emit section banner if one precedes this row
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if row_num in sections:
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story.append(Spacer(1, 6))
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sec_label = sections[row_num]
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# Bold letter prefix (e.g. "A.", "B.") + rest of label
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story.append(Paragraph(
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sec_label,
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ParagraphStyle('SecBanner', fontName='Helvetica-Bold',
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fontSize=10, textColor=C_DARK,
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spaceBefore=8, spaceAfter=3),
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))
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story.append(HRFlowable(width='100%', thickness=0.75,
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color=C_BORDER, spaceAfter=4))
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# Build one Table row with cells sized by colSpan
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cells = []
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col_widths = []
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has_content = False
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for field in fields_in_row:
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ftype = field.get('type', '')
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col_span = field.get('colSpan', 1)
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cell_w = UNIT * col_span
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if ftype == 'label':
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fs_map = {'small': 8, 'normal': 9, 'large': 11, 'x-large': 13}
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fs = fs_map.get(field.get('font_size', 'normal'), 9)
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fw = 'Helvetica-Bold' if field.get('font_weight') == 'bold' else 'Helvetica'
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p = Paragraph(
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field.get('text_content', ''),
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ParagraphStyle('li', fontName=fw, fontSize=fs,
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textColor=C_DARK, leading=fs + 3),
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)
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cells.append(p)
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col_widths.append(cell_w)
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has_content = True
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continue
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fid = str(field.get('id', ''))
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val = form_data.get(fid, '')
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lbl = field.get('label', '')
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lbl_p = Paragraph(lbl, STYLES['FieldLabel'])
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# ── Value content ────────────────────────────────────────────────
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if ftype == 'rating':
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score_int = int(val) if str(val).isdigit() else 0
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if score_int > 0:
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stars = (f'<font color="#f59e0b">{"★" * score_int}'
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f'{"☆" * (5 - score_int)}</font>'
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f' <font color="#64748b">{score_int}/5</font>')
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else:
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stars = '<font color="#94a3b8"><i>Not rated</i></font>'
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val_p = Paragraph(stars, ParagraphStyle(
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'rv', fontName='Helvetica', fontSize=9, leading=12))
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elif ftype == 'image':
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if val:
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img_path = os.path.join(static_folder, val)
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if os.path.exists(img_path):
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try:
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val_p = RLImage(img_path,
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width=min(cell_w - 12, 1.4 * inch),
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height=1.0 * inch,
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kind='proportional')
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except Exception:
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val_p = Paragraph(
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'<i><font color="#94a3b8">Photo error</font></i>',
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STYLES['FieldValue'])
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else:
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val_p = Paragraph(
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'<i><font color="#94a3b8">No photo</font></i>',
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STYLES['FieldValue'])
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else:
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val_p = Paragraph(
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'<i><font color="#94a3b8">No photo</font></i>',
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STYLES['FieldValue'])
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elif ftype == 'signature':
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val_p = Paragraph(
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'[Signature captured]' if (val and str(val).startswith('data:'))
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else '<i><font color="#94a3b8">No signature</font></i>',
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STYLES['FieldValue'])
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elif ftype == 'checkbox':
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val_p = Paragraph('Yes' if val == 'yes' else 'No',
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STYLES['FieldValue'])
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elif ftype == 'checkbox_group':
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val_p = Paragraph(
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', '.join(val) if (val and isinstance(val, list))
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else '<i><font color="#94a3b8">None</font></i>',
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STYLES['FieldValue'])
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elif ftype == 'table':
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if val and isinstance(val, list) and len(val) > 0:
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headers = field.get('col_headers',
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list(val[0].keys()) if val else [])
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tbl_data = ([headers] +
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[[r.get(h, '') for h in headers] for r in val])
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val_p = Table(tbl_data)
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val_p.setStyle(TableStyle([
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('BACKGROUND', (0, 0), (-1, 0), C_LIGHT),
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('FONTNAME', (0, 0), (-1, 0), 'Helvetica-Bold'),
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('FONTSIZE', (0, 0), (-1, -1), 7),
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('INNERGRID', (0, 0), (-1, -1), 0.25, C_BORDER),
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('BOX', (0, 0), (-1, -1), 0.5, C_BORDER),
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('TOPPADDING', (0, 0), (-1, -1), 2),
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('BOTTOMPADDING', (0, 0), (-1, -1), 2),
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]))
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else:
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val_p = Paragraph(
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'<i><font color="#94a3b8">No data</font></i>',
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STYLES['FieldValue'])
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else:
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disp = str(val) if val else ''
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val_p = Paragraph(disp, STYLES['FieldValue'])
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# ── Wrap into label-over-value form box ──────────────────────────
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box = Table([[lbl_p], [val_p]], colWidths=[cell_w - 4])
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box.setStyle(TableStyle([
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('VALIGN', (0, 0), (-1, -1), 'TOP'),
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('LEFTPADDING', (0, 0), (-1, -1), 5),
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('RIGHTPADDING', (0, 0), (-1, -1), 5),
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('TOPPADDING', (0, 0), (0, 0), 2),
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('BOTTOMPADDING',(0, 0), (0, 0), 1),
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('TOPPADDING', (0, 1), (0, 1), 3),
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('BOTTOMPADDING',(0, 1), (0, 1), 4),
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('BOX', (0, 1), (0, 1), 0.5, C_BORDER),
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('BACKGROUND', (0, 1), (0, 1), colors.HexColor('#f8fafc')),
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]))
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cells.append(box)
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col_widths.append(cell_w)
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has_content = True
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if not cells:
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continue
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row_tbl = Table([cells], colWidths=col_widths)
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row_tbl.setStyle(TableStyle([
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('VALIGN', (0, 0), (-1, -1), 'TOP'),
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('LEFTPADDING', (0, 0), (-1, -1), 2),
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('RIGHTPADDING', (0, 0), (-1, -1), 2),
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('TOPPADDING', (0, 0), (-1, -1), 2),
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('BOTTOMPADDING',(0, 0), (-1, -1), 2),
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]))
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story.append(row_tbl)
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return story
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# ── Issues section ────────────────────────────────────────────────────────────
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def _issues_section(issues):
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if not issues:
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return []
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story = [
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Spacer(1, 10),
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Paragraph('Flagged Issues', STYLES['SectionHead']),
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HRFlowable(width='100%', thickness=1, color=C_RED, spaceAfter=6),
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]
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headers = ['#', 'Severity', 'Area', 'Description', 'Status']
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col_w = [0.3 * inch, 0.7 * inch, 1.1 * inch, 3.5 * inch, 0.9 * inch]
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rows = [headers]
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|
for i, issue in enumerate(issues, 1):
|
|
desc = issue.description[:120] + ('…' if len(issue.description) > 120 else '')
|
|
rows.append([
|
|
str(i),
|
|
issue.severity.title(),
|
|
issue.area.name,
|
|
desc,
|
|
issue.status.replace('_', ' ').title(),
|
|
])
|
|
|
|
tbl = Table(rows, colWidths=col_w, repeatRows=1)
|
|
sev_styles = []
|
|
for r, issue in enumerate(issues, 1):
|
|
sc = SEVERITY_COLORS.get(issue.severity, C_SLATE)
|
|
sev_styles.append(('TEXTCOLOR', (1, r), (1, r), sc))
|
|
sev_styles.append(('FONTNAME', (1, r), (1, r), 'Helvetica-Bold'))
|
|
|
|
tbl.setStyle(TableStyle([
|
|
('BACKGROUND', (0, 0), (-1, 0), C_DARK),
|
|
('TEXTCOLOR', (0, 0), (-1, 0), C_WHITE),
|
|
('FONTNAME', (0, 0), (-1, 0), 'Helvetica-Bold'),
|
|
('FONTSIZE', (0, 0), (-1, -1), 8),
|
|
('INNERGRID', (0, 0), (-1, -1), 0.25, C_BORDER),
|
|
('BOX', (0, 0), (-1, -1), 0.5, C_BORDER),
|
|
('ROWBACKGROUNDS',(0, 1), (-1, -1), [C_WHITE, C_LIGHT]),
|
|
('VALIGN', (0, 0), (-1, -1), 'TOP'),
|
|
('TOPPADDING', (0, 0), (-1, -1), 4),
|
|
('BOTTOMPADDING',(0, 0), (-1, -1), 4),
|
|
('LEFTPADDING', (0, 0), (-1, -1), 5),
|
|
('RIGHTPADDING', (0, 0), (-1, -1), 5),
|
|
*sev_styles,
|
|
]))
|
|
story.append(tbl)
|
|
return story
|
|
|
|
|
|
# ── Notes section ─────────────────────────────────────────────────────────────
|
|
|
|
def _notes_section(inspection):
|
|
notes_text = None
|
|
if inspection.notes:
|
|
try:
|
|
parsed = json.loads(inspection.notes)
|
|
if isinstance(parsed, dict):
|
|
notes_text = parsed.get('_inspector_notes') or parsed.get('notes')
|
|
except (json.JSONDecodeError, TypeError):
|
|
notes_text = inspection.notes
|
|
|
|
if not notes_text:
|
|
return []
|
|
|
|
return [
|
|
Spacer(1, 10),
|
|
Paragraph('Inspector Notes', STYLES['SectionHead']),
|
|
HRFlowable(width='100%', thickness=1, color=C_BORDER, spaceAfter=6),
|
|
Paragraph(str(notes_text),
|
|
ParagraphStyle('Notes', fontName='Helvetica', fontSize=8.5,
|
|
textColor=C_DARK, leading=13,
|
|
backColor=colors.HexColor('#fffbeb'),
|
|
borderPad=6, spaceAfter=6)),
|
|
]
|
|
|
|
|
|
# ── Public entry point ────────────────────────────────────────────────────────
|
|
|
|
def generate_inspection_pdf(inspection, form_fields, form_data, issues,
|
|
static_folder) -> bytes:
|
|
"""
|
|
Build and return a PDF byte-string for the given inspection.
|
|
|
|
Parameters
|
|
----------
|
|
inspection : Inspection model instance
|
|
form_fields : list of field dicts from template.get_form_schema()
|
|
form_data : dict of {field_id: value}
|
|
issues : list of Issue model instances
|
|
static_folder: absolute path to app/static (for resolving photo paths)
|
|
"""
|
|
buf = io.BytesIO()
|
|
generated_at = datetime.now().strftime('%B %d, %Y %I:%M %p ET')
|
|
report_title = f'Inspection Report — {inspection.template.name}'
|
|
|
|
doc = SimpleDocTemplate(
|
|
buf,
|
|
pagesize=letter,
|
|
leftMargin=0.65 * inch,
|
|
rightMargin=0.65 * inch,
|
|
topMargin=1.25 * inch, # leave room for the header band
|
|
bottomMargin=0.75 * inch,
|
|
title=report_title,
|
|
author='Janitorial QC System',
|
|
)
|
|
|
|
def _page_cb(canvas, doc):
|
|
_on_page(canvas, doc, report_title, generated_at)
|
|
|
|
story = []
|
|
|
|
# ── Score banner ──
|
|
story.append(_score_banner(inspection))
|
|
story.append(Spacer(1, 8))
|
|
|
|
# ── Meta table ──
|
|
story.append(_meta_table(inspection))
|
|
story.append(Spacer(1, 12))
|
|
|
|
# ── Form fields ──
|
|
story.extend(_form_fields_section(form_fields, form_data, static_folder))
|
|
|
|
# ── Inspector notes ──
|
|
story.extend(_notes_section(inspection))
|
|
|
|
# ── Issues ──
|
|
story.extend(_issues_section(issues))
|
|
|
|
# ── Signature line ──
|
|
story.append(Spacer(1, 24))
|
|
w = letter[0] - 1.3 * inch
|
|
sig_data = [['Inspector Signature', '', 'Date']]
|
|
sig_tbl = Table(sig_data, colWidths=[w * 0.45, w * 0.1, w * 0.45])
|
|
sig_tbl.setStyle(TableStyle([
|
|
('LINEABOVE', (0, 0), (0, 0), 0.75, C_DARK),
|
|
('LINEABOVE', (2, 0), (2, 0), 0.75, C_DARK),
|
|
('FONTNAME', (0, 0), (-1, -1), 'Helvetica'),
|
|
('FONTSIZE', (0, 0), (-1, -1), 8),
|
|
('TEXTCOLOR', (0, 0), (-1, -1), C_SLATE),
|
|
('TOPPADDING', (0, 0), (-1, -1), 4),
|
|
('BOTTOMPADDING',(0, 0), (-1, -1), 0),
|
|
]))
|
|
story.append(sig_tbl)
|
|
|
|
doc.build(story, onFirstPage=_page_cb, onLaterPages=_page_cb)
|
|
return buf.getvalue() |