#!/usr/bin/env python3
"""Build aligned ES/EN clinical case dataset from two 11-column TSV/CSV files.
Usage: python scripts/build_dataset.py --es path/es.tsv --en path/en.tsv --out .
No dependency beyond Python standard library. Review copyright, consent and PHI before release.
"""
import argparse,csv,json,pathlib,re,hashlib,collections,statistics
FIELDS=['year','title','authors','chapter','summary','clinical case','differential diagnosis','evolution','final diagnosis','discussion','bibliography']
FIELDS_TEXT=['title','chapter','summary','clinical case','differential diagnosis','evolution','final diagnosis','discussion','bibliography']
FIELD_MAP={'clinical case':'clinical_case','differential diagnosis':'differential_diagnosis','final diagnosis':'final_diagnosis'}
def read_table(path):
 with open(path,encoding='utf-8-sig',newline='') as f:
  sample=f.read(4096);f.seek(0)
  dialect=csv.excel_tab if path.lower().endswith('.tsv') else csv.Sniffer().sniff(sample,delimiters=',;\t')
  rows=list(csv.DictReader(f,dialect=dialect))
 if not rows or not set(FIELDS).issubset(rows[0]):raise ValueError('Input must have all 11 columns: '+path)
 return [{k:(r.get(k) or '').strip() for k in FIELDS} for r in rows]
def norm(s):return ' '.join(s.lower().split())
def wordcount(s):return len(re.findall(r"\b[\wÀ-ÿ]+(?:[-'][\wÀ-ÿ]+)*\b",s))
def record(r,id_,lang):
 return {'id':id_,'language':lang,'year':int(r['year']) if r['year'].isdigit() else None,'title':r['title'],'authors':r['authors'],'chapter':r['chapter'],'summary':r['summary'],'clinical_case':r['clinical case'],'differential_diagnosis':r['differential diagnosis'],'evolution':r['evolution'],'final_diagnosis':r['final diagnosis'],'discussion':r['discussion'],'bibliography':r['bibliography']}
def write_jsonl(path,records):
 path.parent.mkdir(parents=True,exist_ok=True)
 with open(path,'w',encoding='utf-8') as f:
  for obj in records:f.write(json.dumps(obj,ensure_ascii=False)+'\n')
def main():
 ap=argparse.ArgumentParser();ap.add_argument('--es',required=True);ap.add_argument('--en',required=True);ap.add_argument('--out',default='.');args=ap.parse_args()
 root=pathlib.Path(args.out);a=read_table(args.es);b=read_table(args.en)
 if len(a)!=len(b):raise ValueError('Different row counts; manually align cases before building')
 mismatches=[i+1 for i,(x,y) in enumerate(zip(a,b)) if x['year']!=y['year'] or norm(x['authors'])!=norm(y['authors'])]
 if mismatches:raise ValueError('Year/author alignment mismatch rows: '+str(mismatches))
 ids=[f'saei-{x["year"]}-{i:04d}' for i,x in enumerate(a,1)]
 es=[record(r,ids[i],'es') for i,r in enumerate(a)];en=[record(r,ids[i],'en') for i,r in enumerate(b)]
 for name,rows in [('es',es),('en',en)]:
  write_jsonl(root/'data'/name/'test.jsonl',rows)
 manifest={'dataset_name':'SAEI-CLINDDx','pronunciation':'say-ee clin dix','repository_slug':'SAEI-CLINDDx','release_status':'draft; testing and exploratory evaluation only','intended_use':'testing and exploratory evaluation only; not for model training','configs':['es','en'],'split':'test','number_of_aligned_cases':len(ids),'case_ids_are_row_based':True,'source_files':{'es':pathlib.Path(args.es).name,'en':pathlib.Path(args.en).name},'sha256':{lang:hashlib.sha256(pathlib.Path(p).read_bytes()).hexdigest() for lang,p in [('es',args.es),('en',args.en)]},'cautions':['Source row order and aligned year/authors must be preserved when extending.','The test split denotes intended experimental evaluation use only; it is not a validated independent benchmark. Do not train on these cases if evaluating on them.','Do not publish until copyright, privacy, and medical review are complete.']}
 (root/'manifest.json').write_text(json.dumps(manifest,ensure_ascii=False,indent=2),encoding='utf-8')
 print(json.dumps({'aligned_cases':len(ids),'missing_ddx_cases':sum(not r['differential_diagnosis'] for r in es)},indent=2))
if __name__=='__main__':main()