#!/usr/bin/env bash
# scripts/igir-dryrun.sh   (runs ON valhalla)
#
# Read-only igir REPORT for one platform folder against the given DAT(s), then a
# checksum-status summary + a sample of unmatched files. Used to score a platform
# ("identified%") before deciding whether to canonicalize it with igir-dorename.sh.
#
# DAT paths are relative to libretro-database/metadat (so "no-intro/..." or
# "redump/...") — the cache populated by scripts/igir-report.ps1.
#
#   ssh ginnoir@valhalla 'bash -s -- gb "no-intro/Nintendo - Game Boy.dat"' < scripts/igir-dryrun.sh
#   # or, already deployed on the host:
#   ssh ginnoir@valhalla 'bash /storage1/igir/dryrun.sh nes "no-intro/Nintendo - Nintendo Entertainment System.dat"'
set -uo pipefail
plat="$1"; shift
dargs=(); for d in "$@"; do dargs+=(-d "/dats/$d"); done
out="_dry_${plat}.csv"
docker run --rm \
  -v /storage1/Emulation/roms:/input:ro \
  -v /storage1/igir/dats/libretro-database/metadat:/dats:ro \
  -v /storage1/igir/reports:/output \
  node:lts npx -y igir@latest report "${dargs[@]}" \
    -i "/input/$plat" --report-output "/output/$out" 2>&1 \
  | grep -E "files found|games," || true
python3 - "/storage1/igir/reports/$out" <<'PY'
import csv,sys
name=sys.argv[1].split('/')[-1]
found=unused=dup=missing=0; samp=[]
with open(sys.argv[1],newline='',encoding='utf-8',errors='replace') as fh:
    for r in csv.DictReader(fh):
        s=r.get('Status','')
        if s=='FOUND': found+=1
        elif s=='UNUSED':
            unused+=1
            if len(samp)<10: samp.append(r.get('ROM Files') or r.get('Game Name',''))
        elif s=='DUPLICATE': dup+=1
        elif s=='MISSING': missing+=1
den=found+dup+unused
pct=100.0*(found+dup)/den if den else 0
print(f"SUMMARY {name}: identified={pct:.1f}%  matched={found+dup}/{den}  FOUND={found} DUP={dup} UNUSED={unused} MISSING={missing}")
for x in samp: print("  UNUSED:",x)
PY