#!/usr/bin/env bash
# Generate a review package: commit list, stat summary, and the net
# diff with extended context, written to a file the reviewer reads in one
# call. Using the recorded per-task BASE (not HEAD~1) keeps multi-commit
# tasks intact.
#
# Usage: review-package [--role task-review|fix-review|final-review] PLAN_FILE BASE HEAD [OUTFILE]
# Default OUTFILE: <repo-root>/.superpowers/sdd/<plan-basename>/review-<base7>..<head7>.diff
# (named per range, so a fix review after fixes gets a distinct fresh file).
#
# The trailing dispatch hint rides this output because the controller reads it
# immediately before spawning the reviewer; skill text loaded at session start
# does not survive context compaction, but this line is reprinted every round.
set -euo pipefail

script_dir=$(cd "$(dirname "$0")" && pwd)

role=task-review
if [ "${1:-}" = "--role" ]; then
  [ $# -ge 2 ] || { echo "usage: review-package [--role task-review|fix-review|final-review] PLAN_FILE BASE HEAD [OUTFILE]" >&2; exit 2; }
  role=$2
  shift 2
fi

case "$role" in
  task-review|fix-review|final-review) hint_key=$role ;;
  *) echo "bad --role: ${role} (task-review|fix-review|final-review)" >&2; exit 2 ;;
esac

if [ $# -lt 3 ] || [ $# -gt 4 ]; then
  echo "usage: review-package [--role task-review|fix-review|final-review] PLAN_FILE BASE HEAD [OUTFILE]" >&2
  exit 2
fi

plan=$1
base=$2
head=$3
[ -f "$plan" ] || { echo "no such plan file: $plan" >&2; exit 2; }

git rev-parse --verify --quiet "$base" >/dev/null || { echo "bad BASE: $base" >&2; exit 2; }
git rev-parse --verify --quiet "$head" >/dev/null || { echo "bad HEAD: $head" >&2; exit 2; }

if [ $# -eq 4 ]; then
  out=$4
else
  dir=$("$script_dir/sdd-workspace" "$plan")
  out="$dir/review-$(git rev-parse --short "$base")..$(git rev-parse --short "$head").diff"
fi

{
  echo "# Review package: ${base}..${head}"
  echo
  echo "## Commits"
  git log --oneline "${base}..${head}"
  echo
  echo "## Files changed"
  git diff --stat "${base}..${head}"
  echo
  echo "## Diff"
  git diff -U10 "${base}..${head}"
} > "$out"

commits=$(git rev-list --count "${base}..${head}")
echo "wrote ${out}: ${commits} commit(s), $(wc -c < "$out" | tr -d ' ') bytes"

# Platform dispatch hints ride this output because the controller reads it
# immediately before spawning; the lines themselves are owned by the platform
# reference layer (using-superpowers/references/*-dispatch.hints), not this
# script. Claude Code's dispatch templates carry model selection already, so
# the relay is suppressed there and on any harness without a hints file.
hints_file="$script_dir/../../using-superpowers/references/codex-dispatch.hints"
if [ -z "${CLAUDECODE:-}" ] && [ -f "$hints_file" ]; then
  hint_line=$(grep "^${hint_key}:" "$hints_file" | head -1 | cut -d: -f2- | sed 's/^ *//') || true
  if [ -n "$hint_line" ]; then
    echo "$hint_line"
  fi
fi