#!/bin/bash

# This is part of WHY2
# Copyright (C) 2022 Václav Šmejkal

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Get linux distro
DISTRO=$(grep ^ID_LIKE= /etc/os-release | cut -d= -f2 | tr -d '"')
if [ -e $DISTRO ]
then
    DISTRO=$(grep ^ID= /etc/os-release | cut -d= -f2 | tr -d '"')
fi

if [[ $(id -u) != "0" ]] && [[ $1 != "force" ]]
then
    echo "You must run this script as root! (To skip this, run with 'force' arg: \"./configure.sh force\")"
    exit 1
fi

COMMON="gcc make tmux curl"
ARCH_GENTOO_COMMON="$COMMON json-c libgit2 gmp openssl"

# Get COMMAND
if [[ $DISTRO == "arch" ]]
then
    COMMAND="pacman -S --needed --noconfirm $ARCH_GENTOO_COMMON"
elif [[ $DISTRO == "debian" ]]
then
    COMMAND="apt-get install -y $COMMON libjson-c-dev libcurl4-openssl-dev libgit2-dev libgmp-dev libssl-dev"
elif [[ $DISTRO == "gentoo" ]]
then
    COMMAND="emerge -vn $ARCH_GENTOO_COMMON"

    # Add
    echo "LDPATH=/usr/lib/libwhy2.so" > /etc/env.d/99why2-core
    echo "LDPATH=/usr/lib/libwhy2-logger.so" > /etc/env.d/99why2-logger
    echo "LDPATH=/usr/lib/libwhy2-chat.so" > /etc/env.d/99why2-chat
    echo "LDPATH=/usr/lib/libwhy2-chat-config.so" > /etc/env.d/99why2-chat-config
    env-update && source /etc/profile
else # 'Unsupported' distro
    IFS=' ' read -r -a dependency_array <<< "$ARCH_GENTOO_COMMON" # Split into dependency_array

    echo -e "It seems you are using unsupported distribution...\nDon't worry, just install these dependencies:\n"

    for dependency in "${dependency_array[@]}" # Iter
    do
        echo "$dependency"
    done

    echo -e "\nand you'll be fine."

    exit
fi

# Execute COMMAND
$COMMAND

# Install Rust
if ! [ -x "$(command -v cargo)" ]
then
    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y # Install Rust and components
    source "$HOME/.cargo/env"
fi