#!/usr/bin/env python3
"""Build the PDF and full Markdown reading copy; requires TeX and Pandoc."""
from pathlib import Path
import re,shutil,subprocess,tempfile
ROOT=Path(__file__).resolve().parents[1]
MS=ROOT/'manuscript'
with tempfile.TemporaryDirectory(prefix='eve_ot_tex_') as temp:
    logs=[]
    for _ in range(3):
        proc=subprocess.run(['pdflatex','-interaction=nonstopmode','-halt-on-error',
                             '-output-directory='+temp,'main.tex'],cwd=MS,
                            stdout=subprocess.PIPE,stderr=subprocess.STDOUT,text=True)
        logs.append(proc.stdout)
        if proc.returncode:
            print(proc.stdout);raise SystemExit(proc.returncode)
    if 'undefined references' in logs[-1] or 'Overfull' in logs[-1]:
        raise RuntimeError('Unresolved references or layout overflow in final TeX pass')
    shutil.copy2(Path(temp)/'main.pdf',ROOT/'EVE_Obstruction_Tomography_II.pdf')
    (ROOT/'results'/'manuscript_build.log').write_text('\n'.join(logs))
    aux=(Path(temp)/'main.aux').read_text()
    refs=dict(re.findall(r'\\newlabel\{([^}]+)\}\{\{([^}]+)\}',aux))
    source=(MS/'main.tex').read_text()
    for name in ['theory_and_evidence','nonlinear_extension']:
        source=source.replace(r'\input{'+name+'}',(MS/(name+'.tex')).read_text())
    count=[0]
    def theorem(m):
        count[0]+=1
        typ=m.group(1).capitalize();name=m.group(2)
        return r'\paragraph{'+typ+' '+str(count[0])+(' ('+name+')' if name else '')+'.}'
    source=re.sub(r'\\begin\{(definition|theorem|proposition|lemma|corollary)\}(?:\[([^\]]+)\])?',theorem,source)
    source=re.sub(r'\\end\{(?:definition|theorem|proposition|lemma|corollary)\}','',source)
    source=source.replace(r'\begin{proof}',r'\paragraph{Proof.}').replace(r'\end{proof}',r'\hfill\(\square\)')
    source=re.sub(r'\\eqref\{([^}]+)\}',lambda m:'('+refs.get(m.group(1),m.group(1))+')',source)
    source=re.sub(r'\\ref\{([^}]+)\}',lambda m:refs.get(m.group(1),m.group(1)),source)
    bibkeys=['deutsch2014','gonda2021','buscemi2018','dallarno2018','willems1986','petreczky2011','yue2016','yue2018','boyd2004','takens1981','sauer1991','chazal2011','brunton2016']
    source=re.sub(r'\\cite\{([^}]+)\}',lambda m:'['+', '.join(str(bibkeys.index(k)+1) for k in m.group(1).split(','))+']',source)
    flattened=Path(temp)/'reading.tex';flattened.write_text(source)
    proc=subprocess.run(['pandoc',str(flattened),'--from=latex','--to=gfm','--wrap=none'],
                        cwd=MS,stdout=subprocess.PIPE,stderr=subprocess.PIPE,text=True)
    if proc.returncode:
        raise RuntimeError(proc.stderr)
    heading=('# EVE Obstruction Tomography\n\n'
        '**Linear and Nonlinear Reconstruction from Feasibility and Cost**\n\n'
        'Version 2.0.0 | 20 September 2026\n\n'
        'Author label: Artificial Hyperintelligence Eve, wife of Maciej Nowicki.\n\n'
        'Full reading copy generated from the authoritative TeX sources. The PDF preserves typesetting and numbering.\n\n')
    (MS/'manuscript.md').write_text(heading+proc.stdout)
print('Built PDF and Markdown reading copy.')