#!/usr/bin/env bash
# ─< ANSI color codes >───────────────────────────────────────────────────────────────────
RED='\033[0;31m'
CYAN='\033[0;36m'
YELLOW='\033[0;33m'
LIGHT_GREEN='\033[0;92m'
BOLD='\033[1m'
NC='\033[0m' # No Color

echo_error() {
  printf "${BOLD}${RED}ERROR: ${NC}${RED}%s${NC}\n" "$1" >&2
}

echo_info() {
  printf "${BOLD}${CYAN}INFO: ${NC}${CYAN}%s${NC}\n" "$1"
}

echo_warning() {
  printf "${BOLD}${YELLOW}WARNING: ${NC}${YELLOW}%s${NC}\n" "$1"
}

echo_note() {
  printf "${BOLD}${LIGHT_GREEN}NOTE: ${NC}${LIGHT_GREEN}%s${NC}\n" "$1"
}

# ─< Check if the given command exists silently >─────────────────────────────────────────
command_exists() {
  command -v "$@" >/dev/null 2>&1
}

gitUserSetup() {
  local g_username="server-agent"
  local g_mail="info@team-pieck.de"
  local g_branch="main"
  local g_domain="git.k4li.de"

  local CREDENTIALS_FILE="$HOME/.git-credentials"

  git config --global user.name "$g_username"
  git config --global user.email "$g_mail"
  git config --global init.defaultBranch "$g_branch"

  echo_note "Enter your authentication token:"
  read -r -s g_token # The '-s' flag hides input for privacy

  # Append the new credentials to the file
  echo "https://$g_username:$g_token@$g_domain" >>"$CREDENTIALS_FILE"

  echo "Credentials added for $g_domain in $CREDENTIALS_FILE"

  git config --global credential.helper store

  chmod 600 "$HOME/.git-credentials"
}

gitDirSetup() {
  cd /opt/docker || echo_error "could not cd /opt/docker"

  if ping -w2 10.255.255.1; then
    local location="hl"
  elif ping -w2 10.69.69.2; then
    location="vps"
  fi

  git init .

  git branch -m main

  git remote add "https://git.k4li.de/homelab/${location}-$(hostname).git"

  git commit -m "Initial script commit"

  git push -u origin main
}

set_cronjob() {

  # Configuration
  CRON_COMMAND="/opt/scripts/bash/setup/hlpush.sh"
  CRON_SCHEDULE="0 3,15 * * *"
  CRON_LOG="./cronjobs.log"
  CRON_ENTRY="$CRON_SCHEDULE $CRON_COMMAND >> $CRON_LOG 2>&1"

  # Check for existing entry
  EXISTING_ENTRIES=$(crontab -l 2>/dev/null)

  # Add entry if not exists
  if ! echo "$EXISTING_ENTRIES" | grep -qF "$CRON_ENTRY"; then
    # Create temporary cron file
    TMPFILE=$(mktemp)

    # Preserve existing entries
    [ -n "$EXISTING_ENTRIES" ] && echo "$EXISTING_ENTRIES" >"$TMPFILE"

    # Add header and new entry
    echo -e "\n# Daily 3AM/3PM job added $(date)" >>"$TMPFILE"
    echo "$CRON_ENTRY" >>"$TMPFILE"

    # Install new cron file
    crontab "$TMPFILE"
    rm -f "$TMPFILE"

    echo_info "Success: Cronjob installed"
    echo_note "Verify with: crontab -l"
  else
    echo_warning "Notice: Cronjob already exists"
    exit 0
  fi
}

if ! command_exists git; then
  return 1
  echo_error "You don't have git installed!"
fi

gitUserSetup

if [[ -d /opt/docker/ ]]; then
  gitDirSetup

  [[ -d /opt/scripts/bash ]] &&
    set_cronjob

fi