#!/bin/bash
# guidance-target.sh — print the guidance file the grader will use for a task,
# and the standard it grades under.
#
# Mirrors the GRADING_STANDARD selector in the task's tests/test.sh: the
# consolidated standard applies when the consolidated asset triple is present
# in the task's tests/ directory; otherwise grading falls back to the legacy
# standard. Detector skills call this so they always assess the guidance file
# the grader will actually read, on any task shape — consolidated-era,
# legacy-era, or transitional directories that carry both files.
#
# Usage:
#   bash scripts/guidance-target.sh <slug-or-task-dir>
#
# Output (one line):
#   <path-to-guidance-file> <consolidated|legacy>
#
# Set GRADING_STANDARD=legacy to resolve the legacy file deliberately, the
# same way you would when grading with that standard.
set -eu

arg="${1:?usage: bash scripts/guidance-target.sh <slug-or-task-dir>}"
dir="$arg"
[ -d "$dir" ] || dir="harbor-tasks/$arg"
tests="$dir/tests"
[ -d "$tests" ] || { echo "ERROR: no tests/ directory at $dir" >&2; exit 1; }

if [ "${GRADING_STANDARD:-consolidated}" = "legacy" ]; then
    echo "$tests/grader-guidance.md legacy"
    exit 0
fi

if [ -f "$tests/grader-system-prompt-consolidated.md" ] \
    && [ -f "$tests/grader-guidance-consolidated.md" ] \
    && [ -f "$tests/render-grade-consolidated.py" ]; then
    echo "$tests/grader-guidance-consolidated.md consolidated"
else
    echo "$tests/grader-guidance.md legacy"
fi