from reportlab.lib import colors
from reportlab.lib.colors import HexColor
from reportlab.lib.enums import TA_CENTER
from reportlab.lib.pagesizes import A4
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.units import mm
from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer, Table, TableStyle, PageBreak, KeepTogether
from reportlab.pdfbase.ttfonts import TTFont
from reportlab.pdfbase import pdfmetrics
from reportlab.lib.fonts import addMapping
from pathlib import Path

OUT = Path('/tmp/workspace/handbook-pdf/output/Unit_3C_Answer_Handbook.pdf')
OUT.parent.mkdir(parents=True, exist_ok=True)

NAVY=HexColor('#17324D'); BLUE=HexColor('#1976D2'); TEAL=HexColor('#009688'); ORANGE=HexColor('#F57C00'); PURPLE=HexColor('#7B1FA2'); PALE=HexColor('#F4F8FC'); INK=HexColor('#263238'); GREY=HexColor('#607D8B')
styles=getSampleStyleSheet()
styles.add(ParagraphStyle(name='CoverTitle', parent=styles['Title'], fontName='Helvetica-Bold', fontSize=30, leading=35, textColor=colors.white, alignment=TA_CENTER, spaceAfter=8))
styles.add(ParagraphStyle(name='CoverSub', parent=styles['Normal'], fontName='Helvetica', fontSize=13, leading=18, textColor=colors.white, alignment=TA_CENTER))
styles.add(ParagraphStyle(name='H1x', parent=styles['Heading1'], fontName='Helvetica-Bold', fontSize=19, leading=23, textColor=NAVY, spaceBefore=4, spaceAfter=8))
styles.add(ParagraphStyle(name='H2x', parent=styles['Heading2'], fontName='Helvetica-Bold', fontSize=13, leading=17, textColor=BLUE, spaceBefore=9, spaceAfter=5))
styles.add(ParagraphStyle(name='Bodyx', parent=styles['BodyText'], fontName='Helvetica', fontSize=9.5, leading=13.5, textColor=INK, spaceAfter=5))
styles.add(ParagraphStyle(name='Small', parent=styles['BodyText'], fontName='Helvetica', fontSize=8.3, leading=11.4, textColor=INK, spaceAfter=3))
styles.add(ParagraphStyle(name='Q', parent=styles['BodyText'], fontName='Helvetica-Bold', fontSize=9.3, leading=13, textColor=NAVY, spaceAfter=3))
styles.add(ParagraphStyle(name='Answer', parent=styles['BodyText'], fontName='Helvetica', fontSize=9.3, leading=13, textColor=INK, leftIndent=7, spaceAfter=5))
styles.add(ParagraphStyle(name='Footer', parent=styles['Normal'], fontName='Helvetica', fontSize=8, textColor=GREY, alignment=TA_CENTER))

def P(s, style='Bodyx'): return Paragraph(s, styles[style])
def header(canvas, doc):
    if doc.page>1:
        canvas.saveState(); canvas.setFillColor(NAVY); canvas.rect(0, A4[1]-13*mm, A4[0], 13*mm, stroke=0, fill=1)
        canvas.setFillColor(colors.white); canvas.setFont('Helvetica-Bold', 8.5); canvas.drawString(16*mm, A4[1]-8.5*mm, 'UNIT 3C  |  CULTURE & IDENTITY - ANSWER HANDBOOK')
        canvas.setFillColor(GREY); canvas.setFont('Helvetica',8); canvas.drawCentredString(A4[0]/2, 10*mm, f'{doc.page-1}  •  Prepared from the supplied exercise and answer materials')
        canvas.restoreState()

def section(ex, title, intro=None, colour=BLUE):
    data=[[P(f'EXERCISE {ex}', 'Small'), P(title, 'H2x')]]
    t=Table(data, colWidths=[31*mm, 141*mm])
    t.setStyle(TableStyle([('BACKGROUND',(0,0),(0,0),colour),('BACKGROUND',(1,0),(1,0),HexColor('#EAF3FB')),('TEXTCOLOR',(0,0),(0,0),colors.white),('VALIGN',(0,0),(-1,-1),'MIDDLE'),('LEFTPADDING',(0,0),(-1,-1),7),('RIGHTPADDING',(0,0),(-1,-1),7),('TOPPADDING',(0,0),(-1,-1),5),('BOTTOMPADDING',(0,0),(-1,-1),5)]))
    out=[Spacer(1,5),t]
    if intro: out.append(P(intro,'Small'))
    return out

def qa(q,a): return [P(q,'Q'),P(a,'Answer')]
def bullet(s): return P('• '+s,'Answer')

story=[]
# Cover
cover=Table([[P('UNIT 3C', 'CoverSub')],[P('A United Kingdom?', 'CoverTitle')],[P('Colourful Answer Handbook', 'CoverSub')],[Spacer(1,5)],[P('Individual answers for the exercises in the supplied worksheet<br/>Based on the supplied teacher answer material and audio script.', 'CoverSub')]], colWidths=[178*mm], rowHeights=[14*mm,22*mm,12*mm,6*mm,30*mm])
cover.setStyle(TableStyle([('BACKGROUND',(0,0),(-1,-1),NAVY),('VALIGN',(0,0),(-1,-1),'MIDDLE'),('BOX',(0,0),(-1,-1),0,NAVY),('LEFTPADDING',(0,0),(-1,-1),14),('RIGHTPADDING',(0,0),(-1,-1),14)]))
story += [Spacer(1,48*mm),cover,Spacer(1,12*mm),P('<b>How to use this booklet:</b> Answers marked “possible” are model responses because the original task is open-ended. Speaking and personal-reflection tasks do not have one exact answer.','Bodyx'),Spacer(1,7*mm)]
contents=Table([[P('<b>INCLUDED ANSWERS</b>','Small')],[P('Exercise 1 - photos and British culture<br/>Exercise 2 - speakers and cultural references<br/>Exercise 3 - connected-speech prepositions<br/>Exercise 4 - true / false<br/>Exercises 6-7 - phrases with <i>thing</i><br/>Exercises 8, 10-11 - lecture on identity','Bodyx')]],colWidths=[178*mm])
contents.setStyle(TableStyle([('BACKGROUND',(0,0),(-1,0),TEAL),('TEXTCOLOR',(0,0),(-1,0),colors.white),('BACKGROUND',(0,1),(-1,1),HexColor('#E8F5F3')),('BOX',(0,0),(-1,-1),.5,TEAL),('INNERGRID',(0,0),(-1,-1),.3,HexColor('#B2DFDB')),('LEFTPADDING',(0,0),(-1,-1),9),('RIGHTPADDING',(0,0),(-1,-1),9),('TOPPADDING',(0,0),(-1,-1),7),('BOTTOMPADDING',(0,0),(-1,-1),7)]))
story += [contents,PageBreak()]

# 1
story += [P('Speaking and Listening Answers','H1x')]
story += section('1','British culture: model answers','This exercise asks for discussion. The photo interpretations below are the supplied possible answers.',TEAL)
for q,a in [
('Photo 1','A street in Kingston upon Thames, London. It may suggest that British culture is rich in multicultural diversity.'),
('Photo 2','Ramblers on a guided walk through the Derbyshire countryside. It may suggest that British people enjoy walking outdoors.'),
('Photo 3','People attending a cricket match, a sport that is popular in England.'),
('Photo 4','A road sign in English and Welsh. Bilingual signs are common in Wales and Scotland.'),
('Photo 5','People performing traditional Irish dances. It may suggest a deep connection between Irish and British cultures, shared history and many traditions.'),
('Photo 6','The Alloa Bowmar Pipe Band marching in Killin, central Scotland. It may suggest the importance of maintaining local Scottish traditions.')]: story += qa(q,a)
story += [P('<b>Exercise 1, Question 2 - connections:</b> Use these supplied culture notes as model explanations.','H2x')]
connections=[('Car boot sales','Private sellers sell unwanted items from the boot of their cars.'),('Carnival','The Notting Hill Carnival takes place in London each August and is led by the British Caribbean community.'),('Curry','Originally from India and south-east Asia, curry dishes are an important aspect of British life.'),('Fish and chips','A traditional, still-popular British meal, especially in seaside towns.'),('Football','The Football Association was formed in London in 1863; the English Premier League is now one of the world’s most popular leagues.'),('National Anthem','“God Save the King” is a patriotic song.'),('Islam','The UK’s second largest religion.'),('NHS','Founded in 1948; it provides healthcare free at the point of need and is taxpayer-funded.'),('Public school system','British “public schools” are actually private, independent, fee-paying schools.'),('Regional autonomy','Scotland has its own parliament and considerable autonomy. Wales and Northern Ireland have assemblies with fewer powers.')]
for k,v in connections: story.append(bullet(f'<b>{k}:</b> {v}'))
story.append(PageBreak())

# 2,3,4
story += [P('Listening: Speakers and Details','H1x')]
story += section('2','Which cultural references does each speaker mention?',None,ORANGE)
story += qa('Speaker 1 - Savannah','<b>Carnival:</b> she went to Notting Hill Carnival every year, as an example of a multi-racial and multicultural London. <b>Curry:</b> she ate it growing up. <b>Car boot sales:</b> she now enjoys local sales after moving to rural Northumberland.')
story += qa('Speaker 2 - Callum','<b>Regional autonomy:</b> he wants Scotland to have even more autonomy, perhaps independence. <b>The National Anthem:</b> he would not be caught dead singing it. <b>Public school system:</b> he criticizes the British government as dominated by southern English public-school boys.')
story += qa('Speaker 3 - Amir','<b>Fish and chips:</b> he runs a fish-and-chip shop. <b>Islam:</b> he is Muslim as well as British. <b>Football:</b> he compares supporting Pakistan at cricket with English people abroad wanting their children to support the English football team.')
story += section('3','Fast speech: prepositions heard',None,PURPLE)
preps=['my feelings <b>about</b> British culture','a real mixed bag <b>of</b> stuff','a whole new thing <b>for</b> me','whether they’re aware <b>of</b> it or not','<b>with</b> its own distinct cultural heritage','a republican and citizen <b>of</b> the world','the occasional comment <b>about</b> it','when England play Pakistan <b>at</b> cricket','moving <b>to</b> Spain']
for i,x in enumerate(preps,1): story.append(bullet(f'<b>{i}.</b> {x}'))
story += section('4','True or false?',None,TEAL)
answers=[('1. Savannah’s parents were from different ethnic backgrounds.','<b>True.</b> She says, “Half my friends are mixed race like me.”'),('2. The place Savannah lives in is very racially diverse.','<b>False.</b> She says it is “much whiter”.'),('3. Savannah’s friends in the city often laugh at her.','<b>False.</b> She says they “would die laughing if they could see me now”, not that they often laugh at her.'),('4. Callum gets annoyed by a common false assumption.','<b>True.</b> He is annoyed when people say “British” but really mean “English”.'),('5. Callum complains about tight government control of Scotland.','<b>False.</b> He says Scotland is more in control than it used to be, though he wants more autonomy.'),('6. Callum’s outlook is narrow and provincial.','<b>False.</b> He says he would like to be seen as “a republican and citizen of the world first”.'),('7. Amir acknowledges that he does not conform to a stereotype.','<b>True.</b> He says some people may not expect someone like him to run a fish-and-chip shop.'),('8. Amir gets upset about what people sometimes say to him.','<b>False.</b> He says, “I don’t let it bother me.”'),('9. Amir retains a sense of his family roots.','<b>True.</b> He wants Pakistan to do well when England play Pakistan at cricket.')]
for q,a in answers: story += qa(q,a)
story.append(PageBreak())

#6,7
story += [P('Vocabulary: Phrases with “Thing”','H1x')]
story += section('6','Put the words in the correct order',None,BLUE)
phrases=['It’s no big thing.','It’s just not the done thing.','Chance would be a fine thing!','It’s the furthest thing from my mind at the moment.','I always do it first thing in the morning.','It is the sort of thing that makes you glad to be alive.','It’s been difficult, what with one thing and another.','I didn’t plan it. Just one thing led to another. <i>(“One thing just led to another” is also accepted.)</i>']
for i,a in enumerate(phrases,1): story.append(bullet(f'<b>{i}.</b> {a}'))
story += [P('Meaning check','H2x')]
for t in ['<b>no big thing</b> = not important','<b>not the done thing</b> = not acceptable','<b>chance would be a fine thing</b> = it is very unlikely that the person will get the opportunity','<b>furthest thing from my mind</b> = not thinking about it because other matters are more important','<b>first thing</b> = very early; before doing anything else','<b>what with one thing and another</b> = because of many unspecified things that keep you busy','<b>one thing led to another</b> = an explanation of how something happened after a series of events']: story.append(bullet(t))
story += section('7','What could “it” be? Possible answers','These are possible examples from the supplied answer material, so other sensible answers may also be valid.',ORANGE)
examples=['winning an award / diploma / competition','smoking indoors / belching at the end of a meal / chewing loudly (in the UK)','going to a posh restaurant / travelling round the world','having a holiday / getting married','exercise / have a shower / go for a run / meditate','sitting on a beach / a bracing walk in the country','life / marriage / helping people out','moving abroad / a new job / getting into debt']
for i,e in enumerate(examples,1): story.append(bullet(f'<b>{i}.</b> {e}'))
story.append(PageBreak())

# 8,10,11
story += [P('Lecture: Culture and Identity','H1x')]
story += section('8','Summarize the lecturer’s main message',None,PURPLE)
story += qa('1. For someone who missed the class','Culture and identity are connected to individual experiences and roles. National cultures, to the extent that they exist, are inventions of people in power.')
story += qa('2. For someone with a lower level of English','Culture and identity are personal, not national. National culture is an idea invented by people in power.')
story += section('10','Why were these things mentioned?',None,TEAL)
reasons=['<b>Global uncertainty:</b> people react to it by clinging to the idea of a unified national culture.','<b>Commerce:</b> identities change through interactions, and we live in a world driven by commerce.','<b>French TV shows and German cars:</b> examples of the lecturer’s complex, multi-layered cultural interactions.','<b>A ballet lover and a marketing manager:</b> examples of two roles or identities that one person may have.','<b>Terrible tensions:</b> different roles can sometimes cause tension and be incompatible.','<b>The ruling elite:</b> they encourage the idea of national identity.']
for i,r in enumerate(reasons,1): story.append(bullet(f'<b>{i}.</b> {r}'))
story += section('11','Which statements would the lecturer agree with?',None,ORANGE)
agrees=[('<b>1. Yes.</b>','People may resort to the idea of a unified national culture in response to global uncertainty.'),('<b>2. No.</b>','The lecturer seems to think globalized commerce is fine; boosting the economy is not mentioned.'),('<b>3. Yes.</b>','Identity is very personal and cultural identities vary widely, even within the same society.'),('<b>4. No.</b>','The lecturer says that it is mainly the ruling elite who shape the national-culture story.'),('<b>5. No.</b>','Education tends to reinforce culture rather than encourage criticism of culture as a concept.'),('<b>6. Yes.</b>','Increasingly complex identities and roles can create tensions, so some people may experience identity crises.')]
for q,a in agrees: story += qa(q,a)
story += [Spacer(1,7),Table([[P('<b>Open-ended exercises</b><br/>Exercises 5, 9, 12 and “My Outcomes” require your own discussion, opinion, lists, or reflection. They do not have one fixed exact answer. Use the audio-script evidence and vocabulary in this booklet to support your response.','Bodyx')]],colWidths=[178*mm],style=[('BACKGROUND',(0,0),(-1,-1),HexColor('#FFF3E0')),('BOX',(0,0),(-1,-1),.6,ORANGE),('LEFTPADDING',(0,0),(-1,-1),9),('RIGHTPADDING',(0,0),(-1,-1),9),('TOPPADDING',(0,0),(-1,-1),8),('BOTTOMPADDING',(0,0),(-1,-1),8)])]

doc=SimpleDocTemplate(str(OUT),pagesize=A4,rightMargin=16*mm,leftMargin=16*mm,topMargin=19*mm,bottomMargin=18*mm,title='Unit 3C Answer Handbook',author='Prepared from supplied materials')
doc.build(story,onFirstPage=header,onLaterPages=header)
print(OUT)

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