#!/bin/bash
: '
 @vendor    Chorke Academia, Inc.
 @web       https://cdn.chorke.org/docs/academia
 @version   1.0.00
 @since     1.0.00
'

:<<EOF
if [[ -x "$(command -v curl)" ]];then \
sudo apt -qq update;\
sudo apt install --yes powerline git jq;\
sudo apt install --yes build-essential libssl-dev libffi-dev libgmp3-dev libpq-dev;\
sudo apt install --yes python3 python-is-python3 python3-dev python3-pip python3-venv;\
bash <(curl -s 'https://cdn.chorke.org/exec/cli/bash/install/profile/powerline/2.8.2-debian.sh.txt');\
else printf 'curl \033[0;31mnot found! \033[0m:(\n';fi
EOF

function validate(){
    PYTHON3_VENV_INSTALL_STATUS="$(dpkg-query -W --showformat='${db:Status-Status}' 'python3-venv' 2>&1)"
    if [[ "${?}" != '0' ]]||[[ "${PYTHON3_VENV_INSTALL_STATUS}" != 'installed' ]];then
        printf 'sudo apt install --yes \033[0;31mpython3-venv \033[0m\n';exit 1
    fi

    PYTHON3_PIP_INSTALL_STATUS="$(dpkg-query -W --showformat='${db:Status-Status}' 'python3-pip' 2>&1)"
    if [[ "${?}" != '0' ]]||[[ "${PYTHON3_PIP_INSTALL_STATUS}" != 'installed' ]];then
        printf 'sudo apt install --yes \033[0;31mpython3-pip \033[0m\n';exit 1
    fi

    POWERLINE_INSTALL_STATUS="$(dpkg-query -W --showformat='${db:Status-Status}' 'powerline' 2>&1)"
    if [[ "${?}" != '0' ]]||[[ "${POWERLINE_INSTALL_STATUS}" != 'installed' ]];then
        printf 'sudo apt install --yes \033[0;31mpowerline \033[0m\n';exit 1
    fi

    PYTHON3_INSTALL_STATUS="$(dpkg-query -W --showformat='${db:Status-Status}' 'python3' 2>&1)"
    if [[ "${?}" != '0' ]]||[[ "${PYTHON3_INSTALL_STATUS}" != 'installed' ]];then
        printf 'sudo apt install --yes \033[0;31mpython3 \033[0m\n';exit 1
    fi

    GIT_INSTALL_STATUS="$(dpkg-query -W --showformat='${db:Status-Status}' 'git' 2>&1)"
    if [[ "${?}" != '0' ]]||[[ "${GIT_INSTALL_STATUS}" != 'installed' ]];then
        printf 'sudo apt install --yes \033[0;31mgit \033[0m\n';exit 1
    fi

    # resolve python3 version(major.minor) if not setted up
    if [[ "${PYTHON3_VERSION}/var/set" == '/var/set' ]];then
        PYTHON3_VERSION="$(python3 -V|perl -pe '($_)=/([0-9]+[.][0-9]+)/')"
    fi

    # check existence of git
    if [[ ! -x "$(command -v git)" ]];then
        printf 'git \033[0;31mnot found! \033[0m:(\n';exit 1
    fi

    # check existence of jq
    if [[ ! -x "$(command -v jq)" ]];then
        printf 'jq \033[0;31mnot found! \033[0m:(\n';exit 1
    fi
}

function download(){
    git clone https://github.com/powerline/fonts.git --depth=1 ${HOME}/Downloads/powerline_fonts
    ${HOME}/Downloads/powerline_fonts/install.sh
    rm -rf ${HOME}/Downloads/powerline_fonts

    python3 -m venv ${HOME}/.venv/powerline --prompt="Powerline"
    if [[ -e "${HOME}/.venv/powerline/bin/activate" ]];then
        source ${HOME}/.venv/powerline/bin/activate
        pip install wheel
        pip install powerline-status
    else
        printf 'venv \033[0;31mnot found! \033[0m:(\n';exit 1
    fi
}

function approve(){
    mkdir -p ${HOME}/.config/powerline
    CONFIG_JSON_FILE="${HOME}/.config/powerline/config.json"
    LEFTONLY_JSON_FILE="${HOME}/.config/powerline/themes/shell/default_leftonly.json"
}

function setting(){
    cp -r ${HOME}/.venv/powerline/lib/python${PYTHON3_VERSION}/site-packages/powerline/config_files/* ${HOME}/.config/powerline/
}

function install(){
    echo -E "$(jq '(.ext.shell|select(.theme=="default")).theme="default_leftonly"' ${CONFIG_JSON_FILE})">${CONFIG_JSON_FILE}
    echo -E "$(jq '(.segments.left[]|select(.function=="powerline.segments.common.vcs.branch")).args={"status_colors":true}' ${LEFTONLY_JSON_FILE})">${LEFTONLY_JSON_FILE}
}

function launch(){
    powerline-daemon --replace
    if [[ -x "$(command -v deactivate)" ]];then deactivate;fi
}

function init(){
    validate
    download
    approve
    setting
    install
    launch
}

init