#!/usr/bin/env bash
# WTM Deps - Cross-project dependency management
set -euo pipefail
source "${HOME}/.wtm/lib/common.sh"
source "${HOME}/.wtm/lib/cross-project.sh"

case "${1:-help}" in
  list)
    shift
    if [[ $# -lt 1 ]]; then
      echo "Usage: wtm deps list <project>"
      exit 1
    fi
    echo ""
    echo "  Dependencies for: $1"
    echo "  ─────────────────────────────"
    list_project_deps "$1"
    echo ""
    ;;
  add)
    shift
    if [[ $# -lt 2 ]]; then
      echo "Usage: wtm deps add <project> <depends-on>"
      exit 1
    fi
    add_project_dependency "$1" "$2"
    log_ok "Added dependency: $1 -> $2"
    ;;
  remove)
    shift
    if [[ $# -lt 2 ]]; then
      echo "Usage: wtm deps remove <project> <depends-on>"
      exit 1
    fi
    remove_project_dependency "$1" "$2"
    log_ok "Removed dependency: $1 -> $2"
    ;;
  link)
    shift
    if [[ $# -lt 2 ]]; then
      echo "Usage: wtm deps link <session-id> <depends-on-session>"
      exit 1
    fi
    add_session_cross_dep "$1" "$2"
    log_ok "Linked: $1 depends on $2"
    ;;
  unlink)
    shift
    if [[ $# -lt 2 ]]; then
      echo "Usage: wtm deps unlink <session-id> <depends-on-session>"
      exit 1
    fi
    remove_session_cross_dep "$1" "$2"
    log_ok "Unlinked: $1 no longer depends on $2"
    ;;
  impact)
    shift
    if [[ $# -lt 1 ]]; then
      echo "Usage: wtm deps impact <session-id>"
      exit 1
    fi
    echo ""
    echo "  Impact analysis for: $1"
    echo "  ─────────────────────────────"
    check_impact "$1"
    echo ""
    ;;
  shared-group)
    shift
    if [[ $# -lt 2 ]]; then
      echo "Usage: wtm deps shared-group <group-name> <sid> [sid...]"
      exit 1
    fi
    group_name="$1"
    shift
    for sid in "$@"; do
      set_shared_group "${sid}" "${group_name}"
    done
    log_ok "Shared group '${group_name}' set for $# session(s)"
    ;;
  help|--help|-h)
    cat <<'EOF'
Usage:
  wtm deps list <project>                          List project dependencies
  wtm deps add <project> <depends-on>              Add project dependency
  wtm deps remove <project> <depends-on>           Remove project dependency
  wtm deps link <session-id> <depends-on-session>  Link session cross-dep
  wtm deps unlink <session-id> <depends-on-session>Unlink session cross-dep
  wtm deps impact <session-id>                     Check who depends on this
  wtm deps shared-group <name> <sid> [sid...]       Create shared group
EOF
    ;;
  *)
    log_error "Unknown deps command: $1"
    exit 1
    ;;
esac