#!/usr/bin/env bash

THIS_DIR=$( cd "$( dirname "${BASH_SOURCE[0]:-${(%):-%x}}" )" && pwd )
source "$THIS_DIR/../tools/common.sh"

DOCKER_FORMAT="{{.ID}} {{.Image}} {{.Names}}"
if [[ -z "$1" || "$1" =~ ^(-h|--help)$ ]]; then
    fmt_info "usage: $0 <container> or -[0-9]*"
    exit
elif [[ "$1" =~ ^-[0-9]*$ ]]; then
    LAST="${1:1}"
    if [[ "$LAST" == "0" ]]; then
        # the latest running container
        CONTAINER_META=($($SUDO docker container ls -l --filter "status=running" --format "$DOCKER_FORMAT"))
    else
        # the last nth container (all status)
        CONTAINER_META=($($SUDO docker container ls -n ${LAST:-1} --format "$DOCKER_FORMAT" | tail -n 1))
    fi
    CONTAINER=${CONTAINER_META[0]}
else
    CONTAINER_META="$1"
    CONTAINER="$1"
fi

if [[ -z "$CONTAINER" ]]; then
    fmt_fatal "container not found"
else
    fmt_note "--> ${CONTAINER_META[@]}"
    $SUDO docker exec -it $CONTAINER sh -c 'export DFS="bash <(curl dfs.beardic.cn) -a"; if [ -x "$(command -v zsh)" ]; then echo "--> zsh"; unset DFS; zsh; elif [ -x "$(command -v bash)" ]; then echo "--> bash"; bash; else echo "--> sh"; sh; fi'
fi