#!/bin/bash
# Anthropic's example hook from the costs page, with the test-runner pattern changed from
# ^(npm test|pytest|go test) to ^node --test, because this project runs its tests with node.
input=$(cat)
cmd=$(echo "$input" | jq -r '.tool_input.command')
if [[ "$cmd" =~ ^node\ --test ]]; then
  filtered_cmd="$cmd 2>&1 | grep -A 5 -E '(FAIL|ERROR|error:|not ok)' | head -100"
  echo "$input" | jq --arg filtered "$filtered_cmd" \
    '{hookSpecificOutput: {hookEventName: "PreToolUse", permissionDecision: "allow", updatedInput: (.tool_input + {command: $filtered})}}'
else
  echo "{}"
fi