#!/usr/bin/env python3
"""Regenerate lossless CSV viewer projections and synchronize the data catalog."""
from __future__ import annotations
import csv,hashlib,json
from pathlib import Path
ROOT=Path(__file__).resolve().parents[1]
def main():
    dest=ROOT/"hub_data";dest.mkdir(exist_ok=True)
    for name in ["v3_components_m6","v3_visibility_certificates"]:
        records=json.loads((ROOT/"data"/(name+".json")).read_text(encoding="utf-8"))
        rows=[]
        for r in records:
            row={"record_json":json.dumps(r,ensure_ascii=False,separators=(",",":")),"channels":6}
            if name=="v3_components_m6":
                row.update(component_id=r["type"]+"-"+"-".join(map(str,r["labels_zero_based"])),
                    kind=r["type"],dimension=r["dimension"],
                    labels_zero_based_json=json.dumps(r["labels_zero_based"],separators=(",",":")),
                    equation_count=len(r["linear_equations_ascending_edges"]))
            else:
                row.update(stratum=r["stratum"],blocks=3,visible=r["visible"],
                    normalized_response_exact=str(r["normalized_response"]),
                    motif_json=json.dumps(r["motif"],separators=(",",":")))
            rows.append(row)
        p=dest/(name+".csv")
        with p.open("w",newline="",encoding="utf-8") as f:
            w=csv.DictWriter(f,fieldnames=list(rows[0]));w.writeheader();w.writerows(rows)
        print(name,len(rows))
    cp=ROOT/"data_catalog.json"
    catalog=json.loads(cp.read_text(encoding="utf-8"))
    for item in catalog["configurations"]:
        p=ROOT/item["path"]
        with p.open(newline="",encoding="utf-8") as f:
            r=csv.DictReader(f);rows=list(r)
        item.update(columns=r.fieldnames,rows=len(rows),sha256=hashlib.sha256(p.read_bytes()).hexdigest())
    catalog["total_rows"]=sum(x["rows"] for x in catalog["configurations"])
    cp.write_text(json.dumps(catalog,indent=2,ensure_ascii=False)+"\n",encoding="utf-8")
    return 0
if __name__=="__main__":raise SystemExit(main())