#!/bin/bash
set -uo pipefail
#==============================================================#
# File      :   node-rm
# Desc      :   Remove PostgreSQL Cluster / Remove Replicas
# Ctime     :   2021-12-29
# Mtime     :   2022-12-29
# Path      :   bin/node-rm
# Deps      :   ansible-playbook,node-rm.yml
# License   :   Apache-2.0 @ https://pigsty.io/docs/about/license/
# Copyright :   2018-2026  Ruohang Feng / Vonng (rh@vonng.com)
#==============================================================#
APP_NAME="$(basename $0)"
APP_DIR="$(cd $(dirname $0) && pwd)"
PIGSTY_HOME=$(cd $(dirname ${APP_DIR}) && pwd)


#--------------------------------------------------------------#
# Usage
#--------------------------------------------------------------#
# bin/node-rm <cls|ip|selector> ...  # removes nodes from pigsty


#--------------------------------------------------------------#
# Utils
#--------------------------------------------------------------#
__CN='\033[0m';__CK='\033[0;30m';__CR='\033[0;31m';__CG='\033[0;32m';
__CY='\033[0;33m';__CB='\033[0;34m';__CM='\033[0;35m';__CC='\033[0;36m';__CW='\033[0;37m';
function log_info() {  printf "[${__CG} OK ${__CN}] ${__CG}$*${__CN}\n";   }
function log_warn() {  printf "[${__CY}WARN${__CN}] ${__CY}$*${__CN}\n";   }
function log_error() { printf "[${__CR}FAIL${__CN}] ${__CR}$*${__CN}\n";   }
function log_debug() { printf "[${__CB}HINT${__CN}] ${__CB}$*${__CN}\n"; }
function log_input() { printf "[${__CM} IN ${__CN}] ${__CM}$*\n=> ${__CN}"; }
function log_hint()  { printf "${__CB}$*${__CN}\n"; }
function log_line()  { printf "${__CM}[$*] ===========================================${__CN}\n"; }


#--------------------------------------------------------------#
# Param
#--------------------------------------------------------------#
IP_LIST=""
if (($# == 1)); then
  SELECTOR=$1
  IP_LIST=$1
else
  SELECTOR=""
  for ((i=1; i<=$#; i++))
  do
    IP_LIST="${IP_LIST} ${!i}"
    SELECTOR="${SELECTOR},${!i}"
  done
fi


#--------------------------------------------------------------#
# Execute
#--------------------------------------------------------------#
log_line "EXECUTE"
log_warn "MAKE SURE ALL MODULES ON THAT NODE WERE REMOVED!"
log_warn "remove node  ${IP_LIST}  from pigsty"
log_hint "$ ./node.yml -l '${SELECTOR}'"

"${PIGSTY_HOME}/node-rm.yml" -l "${SELECTOR}"

if [[ $? -ne 0 ]]; then
  log_line "FAILURE"
  log_error "fail to remove node ${IP_LIST} from pigsty"
  exit 4
fi
log_line "SUMMARY"
log_info "remove node ${IP_LIST} from pigsty complete"
exit 0