"""Fetch G10 FX M1 data from histdata.com for all pairs except EURUSD (already fetched).

Each pair's zips go into data/raw/{pair}/ to avoid collisions.
Output: data/raw/gbpusd/DAT_ASCII_GBPUSD_M1_YYYY.zip etc.

    python scripts/fetch_multipair.py
    PAIRS=gbpusd,usdjpy YEARS=2020,2021 python scripts/fetch_multipair.py
"""
import os
import time

from histdata import download_hist_data
from histdata.api import Platform as P, TimeFrame as T

PAIRS_DEFAULT = ["gbpusd", "usdjpy", "usdchf", "audusd"]
YEARS_DEFAULT = list(range(2008, 2024))


def main():
    pairs_env = os.environ.get("PAIRS", "")
    pairs = [p.strip() for p in pairs_env.split(",")] if pairs_env else PAIRS_DEFAULT

    years_env = os.environ.get("YEARS", "")
    years = [int(y.strip()) for y in years_env.split(",")] if years_env else YEARS_DEFAULT

    for pair in pairs:
        out_dir = f"data/raw/{pair}"
        os.makedirs(out_dir, exist_ok=True)
        print(f"\n=== {pair.upper()} ===")
        for yr in years:
            out_path = os.path.join(out_dir, f"DAT_ASCII_{pair.upper()}_M1_{yr}.zip")
            if os.path.exists(out_path):
                print(f"  {yr} already present, skip")
                continue
            try:
                f = download_hist_data(
                    year=str(yr), month=None, pair=pair,
                    platform=P.GENERIC_ASCII, time_frame=T.ONE_MINUTE,
                    output_directory=out_dir,
                )
                print(f"  fetched {yr} → {f}")
            except Exception as e:
                print(f"  {yr} FAILED: {e}")
            time.sleep(2)


if __name__ == "__main__":
    main()