#!/bin/sh

# The MIT License (MIT)
#
# Copyright (c) 2026 pacman64
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.


# prit [options...] [command...] [args...]
#
# Podman Run Interactive Teletype starts the podman container given and puts
# you into its running teletype shell, using the command `podman run -it`.
#
# When no command is given, the default is to run a container's live shell.
#
# The extra options are, available both in single and double-dash versions
#
#   -h, -help    show this help message
#   -n, -name    run using the container name given, instead of picking one


name=''
container=''

case "$1" in
    -h|--h|-help|--help)
        awk '/^# +prit /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
        exit 0
    ;;

    -n|--name)
        if [ $# -lt 2 ]; then
            printf "forgot the container name\n" >&2
            exit 1
        fi
        name="$1"
        container="$1"
        shift
    ;;
esac

if [ -z "${container}" ] && command -v fzf > /dev/null; then
    data="$(podman images)"
    picker='fzf --reverse --header-first --header-lines=1'
    if [ $# -eq 0 ]; then
        msg='podman run -it [container]: enter picks container, escape quits'
    else
        msg="podman run -it [container] $*: enter picks container, escape quits"
    fi
    pick="$(echo "${data}" | ${picker} --header="${msg}")"
    container="$(echo "${pick}" | awk '{ print $3 }')"
    name="$(echo "${pick}" | awk '{ print $1 }')"

    if [ -z "${container}" ]; then
        exit 1
    fi
fi

if [ -z "${container}" ]; then
    awk '/^# +prit /, /^$/ { gsub(/^# ?/, ""); print }' "$0"
    exit 1
fi

if [ $# -eq 0 ]; then
    printf "\n\e[7mentered\e[0m shell from podman container \e[7m%s\e[0m\n\n" \
        "${name}" >&2
fi

podman run -it "${container}" "$@"
res=$?

if [ $# -eq 0 ]; then
    printf "\n\e[7mexited\e[0m shell from podman container \e[7m%s\e[0m\n\n" \
        "${name}" >&2
fi

exit "${res}"