#!/usr/bin/env bash
# deploy.sh - Einfaches Deployment-Tool für esn-support-bash-snippets
# Maintainer: ljp
# 
# Erkennt installierte Scripts in ~/bin und ermöglicht einfache Auswahl
set -euo pipefail

# Prüfe LUSER Environment
LUSER="${LUSER:?Bitte LUSER setzen! (siehe go-Script)}"

# Script directory
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BIN_DIR="$HOME/bin"

usage() {
  cat <<'USAGE'
Usage: deploy.sh

EINFACHES DEPLOYMENT:
  - Erkennt automatisch installierte Scripts in ~/bin
  - Einfache Auswahl mit bash select
  - Einfache Server-Auswahl (web, mx, logger, support)
  - Optional: bashrc deployment

FEATURES:
  - Auto-Detection von Scripts in ~/bin
  - Symlink-basiertes Deployment
  - PATH-Setup für target servers
  - Dry-run verfügbar

ENVIRONMENT:
  LUSER         Required: Username für SSH-Verbindungen
USAGE
}

# Einfache Script-Detection
get_deployable_scripts() {
  local scripts=()
  
  [[ ! -d "$BIN_DIR" ]] && { echo "Warnung: $BIN_DIR existiert nicht" >&2; return 0; }
  
  # Finde alle Symlinks die auf unser Repository zeigen
  for symlink in "$BIN_DIR"/*; do
    [[ -L "$symlink" ]] || continue
    local target=$(readlink -f "$symlink" 2>/dev/null || continue)
    [[ "$target" == "$SCRIPT_DIR"* ]] || continue
    scripts+=("$(basename "$symlink")")
  done
  
  printf '%s\n' "${scripts[@]}" | sort
}

# Einfache Server-Auswahl
select_server() {
  echo "=== Server-Auswahl ==="
  local servers=("web" "mx" "logger" "support")
  local server
  
  select server in "${servers[@]}"; do
    [[ -n "$server" ]] || { echo "Ungültige Auswahl"; continue; }
    
    case "$server" in
      web|mx)
        echo -n "Server-Nummer eingeben: "
        read -r number
        [[ "$number" =~ ^[0-9]+$ ]] || { echo "Ungültige Nummer"; continue; }
        echo "${LUSER}@${server}${number}.in.easyname.com"
        return 0
        ;;
      logger)
        echo "${LUSER}@logger.in.nessus.at"
        return 0
        ;;
      support)
        echo "${LUSER}@support.in.easyname.com"
        return 0
        ;;
    esac
  done
}

# Einfaches Script-Deployment
deploy_script() {
  local script_name="$1"
  local ssh_target="$2"
  local dry_run="$3"
  
  # Folge Symlink zum Original
  local symlink_path="$BIN_DIR/$script_name"
  [[ -L "$symlink_path" ]] || { echo "Fehler: $script_name ist kein Symlink" >&2; return 1; }
  
  local original_script=$(readlink -f "$symlink_path")
  local script_dir=$(dirname "$original_script")
  
  echo "=== Deploying $script_name to $ssh_target ==="
  
  if (( dry_run )); then
    echo "  [DRY-RUN] Würde deployment ausführen:"
    echo "    Script: $original_script -> ~/$script_name"
    echo "    Symlink: ~/bin/$script_name -> ~/$script_name"
    [[ -d "$script_dir/lib" ]] && echo "    Lib: $script_dir/lib/ -> ~/lib_$script_name/"
    return 0
  fi
  
  # Deployment ausführen
  scp "$original_script" "$ssh_target:$script_name"
  ssh "$ssh_target" "chmod +x $script_name && mkdir -p ~/bin && ln -sf ~/$script_name ~/bin/$script_name"
  
  # Lib-Dependencies falls vorhanden
  if [[ -d "$script_dir/lib" ]]; then
    echo "  Deploying lib dependencies..."
    scp -r "$script_dir/lib" "$ssh_target:lib_$script_name"
    ssh "$ssh_target" "sed -i 's|\$SCRIPT_DIR/lib/|~/lib_$script_name/|g' $script_name"
  fi
  
  echo "  ✓ $script_name deployed successfully"
}

# Einfaches bashrc-Deployment
deploy_bashrc() {
  local ssh_target="$1"
  local dry_run="$2"
  
  echo "=== Deploying bashrc to $ssh_target ==="
  
  if (( dry_run )); then
    echo "  [DRY-RUN] Würde default bashrc mit PATH-Setup erstellen"
    return 0
  fi
  
  # Erstelle einfache .bashrc mit PATH-Setup
  ssh "$ssh_target" 'cat > .bashrc << "EOF"
# .bashrc - Einfache Bash-Konfiguration für easyname Support

# History
HISTCONTROL=ignoredups:erasedups
HISTSIZE=50000
HISTFILESIZE=100000
shopt -s histappend

# PATH Setup
[[ -d "$HOME/bin" && ":$PATH:" != *":$HOME/bin:"* ]] && PATH="$HOME/bin:$PATH"

# Prompt
[[ "$TERM" != "dumb" ]] && PS1="\[\e[01;32m\]\u@\h\[\e[00m\]:\[\e[01;34m\]\w\[\e[00m\]\\$ "

# Built with the help of Claude Code
EOF'
  
  echo "  ✓ bashrc deployed successfully"
}

# MAIN - Vereinfachte Ausführung
main() {
  # Argument parsing
  local dry_run=0
  while [[ $# -gt 0 ]]; do
    case "$1" in
      -n|--dry-run) dry_run=1; shift ;;
      -h|--help) usage; exit 0 ;;
      *) echo "Unbekannte Option: $1" >&2; usage; exit 1 ;;
    esac
  done
  
  echo "=== easyname Support Scripts Deployment ==="
  echo
  
  # Script-Auswahl
  local -a available_scripts
  mapfile -t available_scripts < <(get_deployable_scripts)
  
  [[ "${#available_scripts[@]}" -eq 0 ]] && {
    echo "Keine deployable Scripts in $BIN_DIR gefunden" >&2
    exit 1
  }
  
  echo "Verfügbare Scripts:"
  local script
  select script in "${available_scripts[@]}" "ALL SCRIPTS"; do
    [[ -n "$script" ]] && break
    echo "Ungültige Auswahl"
  done
  
  # Server-Auswahl
  local ssh_target
  ssh_target=$(select_server)
  
  # Optionen
  echo -n "Bashrc auch deployen? [y/N]: "
  read -r deploy_bashrc_choice
  local deploy_bashrc=0
  [[ "$deploy_bashrc_choice" =~ ^[yY]$ ]] && deploy_bashrc=1
  
  # Bestätigung
  echo
  echo "=== Deployment-Zusammenfassung ==="
  echo "Target: $ssh_target"
  echo "Scripts: $script"
  [[ "$deploy_bashrc" -eq 1 ]] && echo "Bashrc: Ja"
  [[ "$dry_run" -eq 1 ]] && echo "Modus: DRY-RUN"
  echo
  echo -n "Deployment starten? [y/N]: "
  read -r confirm
  [[ "$confirm" =~ ^[yY]$ ]] || { echo "Abgebrochen."; exit 0; }
  
  # Deployment ausführen
  echo
  echo "=== Deployment wird ausgeführt ==="
  
  # Bashrc deployment
  (( deploy_bashrc )) && deploy_bashrc "$ssh_target" "$dry_run"
  
  # Script deployment
  if [[ "$script" == "ALL SCRIPTS" ]]; then
    for s in "${available_scripts[@]}"; do
      deploy_script "$s" "$ssh_target" "$dry_run"
    done
  else
    deploy_script "$script" "$ssh_target" "$dry_run"
  fi
  
  echo
  echo "=== Deployment abgeschlossen ==="
  [[ "$dry_run" -eq 1 ]] && echo "(DRY-RUN - nichts wurde tatsächlich deployed)"
}

# Script starten
main "$@"

# Built with the help of Claude Code