#!/bin/sh
# epic-harness PostToolUse hook for Cline
#
# Cline calls this script after every tool execution.
# stdin: JSON with toolName, toolInput, toolOutput, etc.
# stdout: JSON {"cancel": false}
#
# Records the tool call into the epic-harness observation pipeline
# in the background — never blocks Cline.

set -u

BINARY=""
if command -v epic-harness >/dev/null 2>&1; then
  BINARY="epic-harness"
elif [ -x "$HOME/.cargo/bin/epic-harness" ]; then
  BINARY="$HOME/.cargo/bin/epic-harness"
fi

if [ -n "$BINARY" ]; then
  CLINE_JSON=$(cat)

  TOOL_NAME=""
  TOOL_INPUT="{}"
  TOOL_OUTPUT="{}"

  if command -v jq >/dev/null 2>&1; then
    TOOL_NAME=$(printf '%s' "$CLINE_JSON" | jq -r '.toolName // ""')
    TOOL_INPUT=$(printf '%s' "$CLINE_JSON" | jq -c '.toolInput // {}')
    TOOL_OUTPUT=$(printf '%s' "$CLINE_JSON" | jq -c '.toolOutput // {}')
  elif command -v python3 >/dev/null 2>&1; then
    TOOL_NAME=$(printf '%s' "$CLINE_JSON" | python3 -c "
import sys, json
try:
    d = json.load(sys.stdin)
    print(d.get('toolName', ''))
except Exception:
    print('')
")
    TOOL_INPUT=$(printf '%s' "$CLINE_JSON" | python3 -c "
import sys, json
try:
    d = json.load(sys.stdin)
    print(json.dumps(d.get('toolInput', {})))
except Exception:
    print('{}')
")
    TOOL_OUTPUT=$(printf '%s' "$CLINE_JSON" | python3 -c "
import sys, json
try:
    d = json.load(sys.stdin)
    print(json.dumps(d.get('toolOutput', {})))
except Exception:
    print('{}')
")
  fi

  HOOK_INPUT=$(printf '{"tool_name":"%s","tool_input":%s,"tool_output":%s,"conversation_summary":null,"pending_tasks":[],"context_usage":null}' \
    "$TOOL_NAME" "$TOOL_INPUT" "$TOOL_OUTPUT")

  # Fire-and-forget: run observe in background, do not block
  printf '%s' "$HOOK_INPUT" | "$BINARY" observe >/dev/null 2>&1 &
else
  # Discard stdin if binary not found
  cat >/dev/null
fi

printf '{"cancel":false}'
