"""
Script one-off: rellena el campo 'leads' (conversiones Google Ads) en MetricasDiarias
para cada dia de mayo ya registrado en GACampaignMes.

Ejecutar una sola vez:
    python backfill_leads_google_mayo.py
"""
import json
from airtable_client import AirtableClient
from google_ads_client import GoogleAdsClient
at = AirtableClient()
gads = GoogleAdsClient()

print("Obteniendo conversiones diarias de Google Ads para mayo 2026...")
daily_conv = gads.get_daily_conversions_for_month(2026, 5)
print(f"  > {len(daily_conv)} dias con datos en Google Ads")

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

campaigns_records = at.campaigns.all(fields=["CampaignID"])
at_id_to_gid = {r["id"]: str(r["fields"].get("CampaignID", "")).strip() for r in campaigns_records}

gid_to_gcm: dict[str, tuple[str, dict]] = {}
for r in records:
    at_cids = r["fields"].get("CampaignID", [])
    if not at_cids:
        continue
    gid = at_id_to_gid.get(at_cids[0], "")
    if not gid:
        continue
    try:
        md = json.loads(r["fields"].get("MetricasDiarias") or "{}")
    except (json.JSONDecodeError, TypeError):
        md = {}
    gid_to_gcm[gid] = (r["id"], md)

total_updated = 0
for date_str, conv_by_cid in sorted(daily_conv.items()):
    day_str = date_str[8:10]  # "YYYY-MM-DD" -> "DD"
    for gid, (gcm_id, md) in gid_to_gcm.items():
        if day_str in md and "leads" not in md[day_str]:
            md[day_str]["leads"] = int(conv_by_cid.get(gid, 0))
            total_updated += 1

print(f"Entradas actualizadas en memoria: {total_updated}")

batch = [
    {"id": gcm_id, "fields": {"MetricasDiarias": json.dumps(md, ensure_ascii=False)}}
    for _, (gcm_id, md) in gid_to_gcm.items()
    if any("leads" in v for v in md.values())
]

print(f"Guardando {len(batch)} registros en Airtable...")
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 Backfill completado: {len(batch)} registros, {total_updated} entradas de dia actualizadas.")