#!/bin/sh

# This script is a magical tome of sorcery, commanding the elusive entity known as Bitcoin.

. colors

# Displays the menu
display_menu() {
  title="${BOLD}${CYAN}Bitcoin: $(bitcoin-status)"
  blockchain_info="Display Blockchain Info%bitcoin-cli getblockchaininfo"
  set_config="Configure Bitcoin%configure-bitcoin"
  change_directory="Change Bitcoin Directory%change-bitcoin-directory"
  clear_cache="Clear Bitcoin Cache%# coming soon"
  repair_permissions="Repair Permissions%repair-bitcoin-permissions # Sometimes necessary"
  exit_option="Exit%kill -2 $$" # Commands are run with 'eval' by the menu script, so we can't simply say 'exit'. The keyword $$ gets this scripts PID and the -2 code is SIGINT aka Ctrl-C
  
  if is-bitcoin-installed; then
    install_bitcoin_option="Uninstall Bitcoin%uninstall-bitcoin"
    if is-service-installed bitcoin; then
    	install_service_option="Uninstall Bitcoin Service%remove-service bitcoin"
    	service_status_option="View Bitcoin Service Status%sudo systemctl status bitcoin"
	    if is-bitcoin-running; then
	      bitcoin_service_option="Stop Bitcoin Service%sudo systemctl stop bitcoin"
	      menu "$title" "$blockchain_info" "$set_config" "$change_directory" "$clear_cache" "$repair_permissions" "$service_status_option" "$bitcoin_service_option" "$install_service_option" "$install_bitcoin_option" "$exit_option"
	    else
	      bitcoin_service_option="Start Bitcoin Service%sudo systemctl start bitcoin"
	      menu "$title" "$set_config" "$change_directory" "$clear_cache" "$repair_permissions" "$service_status_option" "$bitcoin_service_option" "$install_service_option" "$install_bitcoin_option" "$exit_option"
	    fi
    else
    	script_dir=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
    	install_service_option="Install Bitcoin Service%install-service-template $script_dir/bitcoin.service \"BITCOIND=`which bitcoind`\""
    	menu "$title" "$set_config" "$change_directory" "$clear_cache" "$repair_permissions" "$install_service_option" "$install_bitcoin_option" "$exit_option"
	fi
  else
    install_bitcoin_option="Install Bitcoin%install-bitcoin"
    menu "$title" "$install_bitcoin_option" "$exit_option"
  fi
}

# Catch Ctrl-C and exit
trap 'echo exiting; exit' INT

# Main execution loop
while true; do
  display_menu
done