#!/usr/bin/env bash
# CASAN Plan-16 SEC-23 (MT-01) — tenant-scoped state path resolver. SOURCE this.
#
# When CASAN_TENANT_ID is set, exports per-tenant locations for state that would
# otherwise be global (control-plane settings + its audit chain, telemetry, audit),
# so each subsystem writes under its own tenant partition. Each var is only set if
# not already overridden (explicit env wins). An invalid tenant id fails CLOSED.
#
# Usage:  source tenant-paths.sh
# (control-plane-settings.py is tenant-aware on its own via CASAN_TENANT_ID; this
#  resolver covers the bash subsystems that read path env vars.)

_CASAN_TP_DIR="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" && pwd)"
_CASAN_TS="$_CASAN_TP_DIR/tenant-store.sh"

_casan_tp_set() {  # <var-name> <logical-name>
  local var="$1" name="$2" path
  [[ -n "${!var:-}" ]] && return 0            # explicit override wins
  path="$(bash "$_CASAN_TS" resolve "$name" 2>/dev/null)" || return 1
  export "$var=$path"
}

if [[ -n "${CASAN_TENANT_ID:-}" ]]; then
  if ! bash "$_CASAN_TS" id >/dev/null 2>&1; then
    echo "TENANT_PATHS_DENIED invalid or missing tenant id" >&2
    return 1 2>/dev/null || exit 1
  fi
  _casan_tp_set CASAN_CP_STORE_FILE     control-plane/settings.json
  _casan_tp_set CASAN_CP_KEY_DIR        control-plane/keys
  _casan_tp_set CASAN_METRICS_DIR       telemetry/cost
  _casan_tp_set CASAN_TENANT_AUDIT_DIR  audit
fi