#!/usr/bin/env bash
# Observability: aggregiert Session-Logs + Git zu metrics/efficiency.csv
set -uo pipefail
mkdir -p metrics; out="metrics/efficiency.csv"
echo "date,sessions,rework_commits,total_commits" > "$out"
total=$(git rev-list --count HEAD 2>/dev/null || echo 0)
rework=$(git log --pretty=%s | grep -Ec '^(fix|refactor)(\(.+\))?: ' || true)
sess=$(ls sessions/[0-9]*.md 2>/dev/null | wc -l | tr -d ' ')
echo "$(date +%F),$sess,$rework,$total" >> "$out"
echo "[metrics] geschrieben nach $out"
echo "  Rework-Rate: $rework/$total Commits"