#!/usr/bin/env bash
# Phase 7: ccusage wrapper that unions the user's host ~/.claude
# session dir plus every per-project agent-vm session dir on this host,
# so `ccusage` reports tokens/cost across host AND sandbox sessions in
# one summary.
#
# Mirrors the original Bash agent-vm's `bin/ccusage` 1:1 but resolves
# the state root from the same precedence the Rust launcher uses.

set -euo pipefail

state_root="${AGENT_VM_STATE_DIR:-${XDG_STATE_HOME:-$HOME/.local/state}/agent-vm}"

# Each per-project state dir has the Claude session history under
# <hash>/claude (which is symlinked into the guest as ~/.claude).
# Use NUL-delimited find→read so paths containing legal characters
# like `,` (which CLAUDE_CONFIG_DIR uses as a separator) aren't
# mis-split (review finding #15).
paths="$HOME/.claude,$HOME/.config/claude"
if [ -d "$state_root" ]; then
  while IFS= read -r -d '' dir; do
    # Refuse to add a path that contains a comma — CLAUDE_CONFIG_DIR
    # has no escape mechanism and silently mis-tokenizes; better to
    # skip than to merge directories the user didn't ask for.
    case "$dir" in
      *,*) echo "agent-vm-ccusage: skipping $dir (contains ',', breaks CLAUDE_CONFIG_DIR)" >&2;;
      *)   paths="$paths,$dir";;
    esac
  done < <(find "$state_root" -maxdepth 2 -type d -name claude -print0 2>/dev/null)
fi

export CLAUDE_CONFIG_DIR="$paths"
exec npx -y ccusage@latest "$@"