#!/usr/bin/env bash
# Verdict for the check-in census artifact.
# Exit code 0 = artifact correct; nonzero = wrong.
# Recomputes from disk (independent of the extraction script) and diffs.
set -u

ROOT=/root/troupe-standup/checkins
OUT=/root/troupe-standup/wizard-work/ledger
TSV=$OUT/checkin-census.tsv
COMBINED=checkin-census.combined.tsv

fail() { echo "VERIFY FAIL: $1" >&2; exit 1; }

[ -s "$TSV" ] || fail "missing or empty: $TSV"

# 1) Recompute per-wizard counts from disk and compare.
expected=$(cd "$ROOT" && ls -1 *.md 2>/dev/null | grep -E '^[0-9]{4}-' | sed 's/\.md$//' | awk -F- '{print $4}' | sort | uniq -c | awk '{print $2"\t"$1}')
actual=$(tail -n +2 "$TSV")
if [ "$expected" != "$actual" ]; then
  fail "per-wizard counts differ
expected:
$expected
actual:
$actual"
fi

# 2) Source file count (date-prefixed *.md) must equal the sum of wizard counts.
total_files=$(cd "$ROOT" && ls -1 *.md 2>/dev/null | grep -E '^[0-9]{4}-' | wc -l)
sum_actual=$(tail -n +2 "$TSV" | awk -F'\t' '{s+=$2} END {print s+0}')
if [ "$total_files" != "$sum_actual" ]; then
  fail "file count $total_files != sum of wizard counts $sum_actual"
fi

# 3) No empty/whitespace-only wizard in the table.
if grep -Pq '^\t' "$TSV"; then fail "blank wizard row"; fi

echo "OK: checkin-census.tsv ($(wc -l < "$TSV") lines, $(cd "$ROOT" && ls -1 *.md 2>/dev/null | grep -cE '^[0-9]{4}-') check-in files)"
exit 0