#!/bin/bash

set -e

###                       ###
#                           #
# V Rising on-the-fly shell #
#         v0.2              #
###                       ###

stdout() {
    echo "${1}"
}

stderr() {
    >&2 echo "${1}"
}

log() {
    local action="${1}"
    local when=""
    when="$(date +%R:%S)"

    echo "${when} - ${action}" >> "${THIS_LOG}" 2>&1 /dev/null
}

editWithRestart() {
    local full_path_file_to_edit="${1}"
    nano "${full_path_file_to_edit}"
    log "File edit - ${full_path_file_to_edit}"
    stdout "The server will now be restarted and you will be attached to the logs."
    stdout "Use ctrl-c to detach from the logs (the service will continue to run in background)"
    log "Server restart"
    (cd "${VRISING_COMPOSE_HOME}" && docker-compose restart && docker-compose logs -f)
}

ctrl_c_handler() {
    # shellcheck disable=SC2317
    log "Logout with ctrl-c"
    # shellcheck disable=SC2317
    exit 0
}

trap 'ctrl_c_handler' INT

USERNAME="${1}"

shift

BASE_VRISING_FOLDER="/srv/docker/vrising/saves/Settings/"
GAME_SETTINGS="ServerGameSettings.json"
HOST_SETTINGS="ServerHostSettings.json"
VRISING_COMPOSE_HOME="/home/davide/services/vrising/"
LOGS_FOLDER="${HOME}/logs"
THIS_LOG="${USERNAME}-$(date --iso-8601=ns).log"

mkdir -p "${LOGS_FOLDER}" || (stderr "Unable to create logs folder, exiting" && exit 1)

stdout "Welcome ${USERNAME}, please remember that your current activity in the server is logged!"

while true
do
    stdout """
Select one of the following actions:
0 - exit
1 - edit ${GAME_SETTINGS}
2 - edit ${HOST_SETTINGS}
3 - inspect server logs
4 - restart server
5 - recreate server (destroy and recreate container)
"""

    ACTION="-1"
    read -rp "> " ACTION

    case "${ACTION}" in
        0)
            log "Exit"
            exit 0
            ;;
        1)
            editWithRestart "${BASE_VRISING_FOLDER}${GAME_SETTINGS}"
            ;;
        2)
            editWithRestart "${BASE_VRISING_FOLDER}${HOST_SETTINGS}"
            ;;
        3)
            stdout "Use ctrl-c to detach from the logs at any time"
            log "Show logs"
            (cd "${VRISING_COMPOSE_HOME}" && docker-compose logs -f)
            ;;
        4)
            stdout "Use ctrl-c to detach from the logs at any time"
            log "Server restart"
            (cd "${VRISING_COMPOSE_HOME}" && docker-compose restart && docker-compose logs -f)
            ;;
        5)
            stdout "Use ctrl-c to detach from the logs at any time"
            log "Recreate server"
            (cd "${VRISING_COMPOSE_HOME}" && docker-compose down -v && sleep 1 && docker-compose up -d && docker-compose logs -f)
            ;;
        *)
            log "Invalid input: ${ACTION}"
            stderr "The provided input is not valid. Please chose a valid action"
            ;;
    esac
done

exit 0