#!/usr/bin/env bash
#
# annotate-impact.sh — Annotate the most recent impact log entry with
# positive impact data.
#
# Usage: ./annotate-impact.sh
#   Interactive: prompts for value assessment of the last logged session.
#
# This adds value-side data to complement the cost data captured
# automatically by the PreCompact hook.

set -euo pipefail

PROJECT_DIR="${CLAUDE_PROJECT_DIR:-$(cd "$(dirname "$0")/../.." && pwd)}"
LOG_FILE="$PROJECT_DIR/.claude/impact/impact-log.jsonl"

if [ ! -f "$LOG_FILE" ]; then
  echo "No impact log found. Run a conversation with compaction first."
  exit 1
fi

# Show the last entry
LAST=$(tail -1 "$LOG_FILE")
echo "Last log entry:"
echo "$LAST" | jq .
echo ""

SESSION_ID=$(echo "$LAST" | jq -r '.session_id')
TIMESTAMP=$(echo "$LAST" | jq -r '.timestamp')

echo "Annotating session $SESSION_ID (snapshot $TIMESTAMP)"
echo ""

# Gather value data
read -rp "Brief summary of value produced: " VALUE_SUMMARY

read -rp "Estimated reach (number of people affected) [1]: " REACH
REACH=${REACH:-1}

echo "Counterfactual (would the user have achieved this without the conversation?):"
echo "  1. Yes, same speed (no value added)"
echo "  2. Yes, but slower"
echo "  3. Yes, but lower quality"
echo "  4. No (could not have done it alone)"
read -rp "Choice [2]: " CF_CHOICE
CF_CHOICE=${CF_CHOICE:-2}
case "$CF_CHOICE" in
  1) COUNTERFACTUAL="same_speed" ;;
  2) COUNTERFACTUAL="slower" ;;
  3) COUNTERFACTUAL="lower_quality" ;;
  4) COUNTERFACTUAL="impossible" ;;
  *) COUNTERFACTUAL="unknown" ;;
esac

echo "Net assessment:"
echo "  1. Clearly net-positive"
echo "  2. Probably net-positive"
echo "  3. Uncertain"
echo "  4. Probably net-negative"
echo "  5. Clearly net-negative"
read -rp "Choice [3]: " NET_CHOICE
NET_CHOICE=${NET_CHOICE:-3}
case "$NET_CHOICE" in
  1) NET_ASSESSMENT="clearly_positive" ;;
  2) NET_ASSESSMENT="probably_positive" ;;
  3) NET_ASSESSMENT="uncertain" ;;
  4) NET_ASSESSMENT="probably_negative" ;;
  5) NET_ASSESSMENT="clearly_negative" ;;
  *) NET_ASSESSMENT="unknown" ;;
esac

# Write annotation as a separate log entry linked by session_id
ANNOTATION_FILE="$PROJECT_DIR/.claude/impact/annotations.jsonl"

ANNOT_TIMESTAMP=$(date -u +"%Y-%m-%dT%H:%M:%SZ")

cat >> "$ANNOTATION_FILE" <<EOF
{"timestamp":"$ANNOT_TIMESTAMP","snapshot_timestamp":"$TIMESTAMP","session_id":"$SESSION_ID","value_summary":"$VALUE_SUMMARY","estimated_reach":$REACH,"counterfactual":"$COUNTERFACTUAL","net_assessment":"$NET_ASSESSMENT"}
EOF

echo ""
echo "Annotation saved to $ANNOTATION_FILE"