"""
Migración one-off: renombra el campo 'leads' a 'leads_lake' en MetricasDiarias
de todos los registros GACampaignMes de mayo 2026.
"""
import json
from airtable_client import AirtableClient

at = AirtableClient()

print("Cargando registros GACampaignMes de mayo...")
records = at.gacampaignmes.all(
    formula="AND({Mes}='5',{Año}='2026')",
    fields=["MetricasDiarias"],
)

batch = []
for r in records:
    raw = r["fields"].get("MetricasDiarias") or "{}"
    try:
        md = json.loads(raw)
    except (json.JSONDecodeError, TypeError):
        md = {}

    changed = False
    for day_vals in md.values():
        if "leads" in day_vals and "leads_lake" not in day_vals:
            day_vals["leads_lake"] = day_vals.pop("leads")
            changed = True

    if changed:
        batch.append({
            "id": r["id"],
            "fields": {"MetricasDiarias": json.dumps(md, ensure_ascii=False)},
        })

print(f"Registros a migrar: {len(batch)}")
if not batch:
    print("Nada que migrar.")
else:
    for i in range(0, len(batch), 10):
        at.gacampaignmes.batch_update(batch[i:i+10])
        print(f"  > {min(i+10, len(batch))}/{len(batch)} guardados")
    print(f"OK Migracion completada: {len(batch)} registros actualizados.")