#!/usr/bin/env bash
# Runs one builder: a headless Opus 5.5 session in the app's worktree, with
# a 4-hour limit. Logs go to builders/logs/<slug>.build.jsonl.
#   builders/run-build.sh <slug>
set -euo pipefail
slug=$1
repo=$(cd "$(dirname "$0")/.." && pwd)
wt="$repo/.worktrees/$slug"
[ -d "$wt" ] || { echo "no worktree: run builders/worktree.sh $slug" >&2; exit 1; }
language=$(cd "$repo/harness" && go run ./cmd/language "$slug")
prompt=$(python3 - "$repo" "$slug" "$language" <<'PY'
import sys, pathlib
repo, slug, lang = sys.argv[1:]
t = pathlib.Path(repo, "builders/prompts/build.md").read_text()
extra = pathlib.Path(repo, "builders/extra", slug + ".md").read_text().strip()
print(t.replace("{SLUG}", slug).replace("{LANGUAGE}", lang).replace("{EXTRA}", extra))
PY
)
log="$repo/builders/logs/$slug.build.jsonl"
cd "$wt"
set +e
timeout 4h "$repo/builders/claude.sh" -p "$prompt" > "$log" 2> "$repo/builders/logs/$slug.build.stderr"
status=$?
set -e
python3 -c 'import json,sys; print(json.loads(open(sys.argv[1]).readline())["session_id"])' "$log" > "$repo/builders/logs/$slug.session" || true
echo "$slug build exited $status (124 means the 4-hour limit)"
exit $status