.mkdkr

#!/usr/bin/env bash

declare -A colors

pretty() {
  colors+=(
    ["black"]='\e[0;30m'
    ["red"]='\e[0;31m'
    ["green"]='\e[0;32m'
    ["orange"]='\e[0;33m'
    ["blue"]='\e[0;34m'
    ["purple"]='\e[0;35m'
    ["cyan"]='\e[0;36m'
    ["light_gray"]='\e[0;37m'
    ["dark_gray"]='\e[1;30m'
    ["light_red"]='\e[1;31m'
    ["light_green"]='\e[1;32m'
    ["yellow"]='\e[1;33m'
    ["light_blue"]='\e[1;34m'
    ["light_purple"]='\e[1;35m'
    ["light_cyan"]='\e[1;36m'
    ["white"]='\e[1;37m'
  )
  key=${1:-white}
  echo -e "${colors[${key}]}${*:2}\e[0m"
}

_image() {
  docker ps | grep "${1}" | awk '{print $2}'
}

_remove_running_job() {
  if [ "$(docker ps | grep job_${MKDKR_JOB_NAME})" != "" ]; then
    pretty "purple" "image changed, from: $(_image job_${MKDKR_JOB_NAME}) to: ${IMAGE}"
    docker rm -f "job_${MKDKR_JOB_NAME}"
  fi
}

_implicit_job() {

  TYPE="${1}"

  if [ "${TYPE}" != "job" ] &&
    [ "${TYPE}" != "service" ] &&
    [ "${TYPE}" != "privileged" ]; then
    echo true
  else
    echo false
  fi
}

....() {
  if [ -z "${MKDKR_JOB_NAME}" ]; then
    _MKDKR_JOB_NAME=$(echo "${1}_$(cat /proc/sys/kernel/random/uuid)" | sed 's/\//_/g')
    export MKDKR_JOB_NAME="${_MKDKR_JOB_NAME}"
  fi
  echo "${MKDKR_JOB_NAME}"
}

# shellcheck disable=SC1036
...() {
  OLDIFS=$IFS
  IFS='⠀' # Braille Pattern Blank (U+2800)
  TYPE="${1}"
  IMAGE="${2}"
  ARGS="${*:3}"

  if [ "$(_implicit_job "${TYPE}")" == true ]; then
    ARGS="${*:2}"
    IMAGE="${TYPE}"
    TYPE="job"
  fi

  _remove_running_job

  pretty "cyan" "... ${TYPE} ${IMAGE} ${ARGS[*]}"

  if [ "${TYPE}" == "service" ]; then
    docker run --rm -d \
      -v "${PWD}":"${PWD}" \
      --workdir "${PWD}" \
      $ARGS \
      --name "service_${MKDKR_JOB_NAME}" \
      "${IMAGE}"
  else
    if [ "${TYPE}" == "privileged" ]; then
      PRIVILEGED=(--privileged -v /var/run/docker.sock:/var/run/docker.sock)
    fi

    SERVICE=$(_image "service_${MKDKR_JOB_NAME}" | sed 's/:.*//g;s/\//_/g')
    if [ "${SERVICE}" != "" ]; then
      SERVICES=(--link "service_${MKDKR_JOB_NAME}:${SERVICE}")
    fi

    docker run --rm -d \
      -v "${PWD}":"${PWD}" \
      --workdir "${PWD}" \
      --entrypoint "" \
      $ARGS \
      ${PRIVILEGED[@]} \
      ${SERVICES[@]} \
      --name "job_${MKDKR_JOB_NAME}" \
      "${IMAGE}" sleep "${MKDKR_TTL:-3600}"
  fi
  IFS=$OLDIFS
}

# shellcheck disable=SC1036
..() {
  CONTAINER_NAME="job_${MKDKR_JOB_NAME}"

  pretty "green" ".. ${*}"

  docker exec -i ${CONTAINER_NAME} ${MKDKR_SHELL:-sh} -c "$*"
  EXIT_CODE=$?
  if [ "${EXIT_CODE}" != "0" ]; then
    .
    exit "${EXIT_CODE}"
  fi
}

.() {
  ALIVE=$(docker ps | grep "${MKDKR_JOB_NAME}" | awk '{print $1}')
  if [ "${ALIVE[0]}" != "" ]; then
    pretty "green" "."
    docker ps | grep "${MKDKR_JOB_NAME}" | awk '{print $1}' | xargs docker rm -f
  fi
}