#!/usr/bin/env bash
set -Eeuo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"

# shellcheck source=install/lib/common.sh
source "${SCRIPT_DIR}/lib/common.sh"
# shellcheck source=install/lib/logging.sh
source "${SCRIPT_DIR}/lib/logging.sh"
# shellcheck source=install/lib/packages.sh
source "${SCRIPT_DIR}/lib/packages.sh"
# shellcheck source=install/lib/services.sh
source "${SCRIPT_DIR}/lib/services.sh"
# shellcheck source=install/lib/files.sh
source "${SCRIPT_DIR}/lib/files.sh"
# shellcheck source=install/lib/validation.sh
source "${SCRIPT_DIR}/lib/validation.sh"

atlas_set_script_name "bootstrap.sh"
atlas_install_error_trap
atlas_install_cleanup_trap

RUN_VALIDATION=0
INIT_LOG=0
ATLAS_INSTALL_LOG_DIR="/var/log/atlas/install"

usage() {
  cat <<'USAGE'
Usage: install/bootstrap.sh [options]

Phase 2A bootstrap scaffold. This command does not install packages,
alter services, change firewall rules, or modify system configuration.

Options:
  --help              Show this help text.
  --version           Show script/framework version.
  --dry-run           Show intended actions without making changes.
  --verbose           Print additional diagnostic output.
  --log               Initialise a timestamped installer log file.
  --validate-host     Run the read-only host validation script.

USAGE
}

while [[ "$#" -gt 0 ]]; do
  case "$1" in
    --help)
      usage
      exit "${ATLAS_EXIT_OK}"
      ;;
    --version)
      atlas_print_version
      exit "${ATLAS_EXIT_OK}"
      ;;
    --dry-run)
      atlas_enable_dry_run
      ;;
    --verbose)
      atlas_enable_verbose
      ;;
    --log)
      INIT_LOG=1
      ;;
    --validate-host)
      RUN_VALIDATION=1
      ;;
    *)
      atlas_usage_error "Unknown option: $1"
      exit "${ATLAS_EXIT_USAGE}"
      ;;
  esac
  shift
done

if [[ "$INIT_LOG" == "1" ]]; then
  atlas_init_log_file "$ATLAS_INSTALL_LOG_DIR" "bootstrap"
fi

atlas_log_info "Atlas bootstrap scaffold"
atlas_log_info "Repository root: ${REPO_ROOT}"
atlas_log_info "Dry-run mode: ${ATLAS_DRY_RUN}"

atlas_require_command bash
atlas_require_command git
atlas_require_command systemctl
atlas_require_command findmnt
atlas_require_command df

atlas_log_info "Planned future phase directory: ${SCRIPT_DIR}/phases"
atlas_log_info "No component installers are invoked during Phase 2A"

if [[ "$RUN_VALIDATION" == "1" ]]; then
  atlas_log_info "Running read-only host validation"
  "${REPO_ROOT}/scripts/system/validate-host.sh"
else
  atlas_log_info "Host validation not requested; use --validate-host to run it"
fi

atlas_log_ok "Bootstrap scaffold completed"