#!/usr/bin/env bash
# Example 2 — Mission (2): a walk-forward whose every window records zero trades
# must announce itself with an explicit notice; one that trades must not; exit
# code stays success either way. Blueprints authored via the binary's own
# op-script surface (`aura graph build`).
set -u
AURA="${AURA:?set AURA to the release binary path}"
HERE="$(cd "$(dirname "$0")/.." && pwd)"
WORK="$(mktemp -d)"; trap 'rm -rf "$WORK"' EXIT

"$AURA" graph build < "$HERE/ops/flat.ops.json"     > "$WORK/flat.json"
"$AURA" graph build < "$HERE/ops/momentum.ops.json" > "$WORK/momentum.json"
cd "$WORK"   # synthetic families record to ./runs — keep them in the temp dir

echo "=== A: flat (zero-trade) walkforward — expect note + exit 0 ==="
"$AURA" walkforward "$WORK/flat.json" --axis graph.sma.length=2,3,5 \
    >/dev/null 2>"$HERE/captured/example2_flat.err"
echo "# exit=$?"; cat "$HERE/captured/example2_flat.err"

echo "=== B: momentum (trades) walkforward — expect NO note + exit 0 ==="
"$AURA" walkforward "$WORK/momentum.json" --axis graph.sma.length=2,3,5 \
    >/dev/null 2>"$HERE/captured/example2_momentum.err"
echo "# exit=$?"; cat "$HERE/captured/example2_momentum.err"; echo "(stderr empty above = no note)"

echo "=== C: single-window edge — expect the 'all 1 windows' plural nit ==="
# The synthetic roller always yields 3 windows; a sub-120-day REAL window yields
# exactly one OOS window, which exposes the ungrammatical "all 1 ... windows".
( cd "$WORK" && "$AURA" new proj >/dev/null )
( cd "$WORK/proj" && "$AURA" walkforward blueprints/signal.json --real EURUSD \
    --from 1577836800000 --to 1583020800000 --axis proj_signal.fast.length=4 \
    >/dev/null 2>"$HERE/captured/example2_singular.err" )
echo "# exit=$?"; cat "$HERE/captured/example2_singular.err"