#!/usr/bin/env zsh
#Copyright Joel Schaerer 2008, 2009
#This file is part of autojump

#autojump 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.
#
#autojump 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 autojump.  If not, see <http://www.gnu.org/licenses/>.

function show_help {
    echo "sudo ./install.zsh [--local] [--prefix /usr/local]"
}

prefix=/usr
local=false

#command line parsing
while true; do
    case "$1" in
        -h|--help|-\?)
            show_help
            exit 0
            ;;
        -l|--local)
            local=true
            prefix=~/.autojump
            shift
            ;;
        -p|--prefix)
            if [ $# -gt 1 ]; then
                prefix=$2; shift 2
            else
                echo "--prefix or -p require an argument" 1>&2
                exit 1
            fi
            ;;
        --)
            shift
            break
            ;;
        -*)
            echo "invalid option: $1" 1>&2
            show_help
            exit 1
            ;;
        *)
            break
            ;;
    esac
done

if [[ ${UID} != 0 ]] && ! ${local}; then
    echo "Please rerun as root or use the --local option."
    exit 1
fi

echo "Installing main files to ${prefix} ..."

# add git revision to autojump
./git-version.sh

mkdir -p ${prefix}/share/autojump/
mkdir -p ${prefix}/bin/
mkdir -p ${prefix}/share/man/man1/
cp icon.png ${prefix}/share/autojump/
cp jumpapplet ${prefix}/bin/
cp autojump ${prefix}/bin/
cp autojump.1 ${prefix}/share/man/man1/

# autocompletion file in the first directory of the FPATH variable
if ( ! ${local} ); then
    fail=true
    for f in $fpath
    do
        cp _j $f && fail=false && break
    done
    if $fail
    then
        echo "Couldn't find a place to put the autocompletion file, please copy _j into your \$fpath"
        echo "Still trying to install the rest of autojump..."
    else
        echo "Installed autocompletion file to $f"
    fi

    if [ -d "/etc/profile.d" ]; then
        cp -v autojump.zsh /etc/profile.d/
        cp -v autojump.sh /etc/profile.d/
        echo
        echo "Add the following line to your ~/.zshrc:"
        echo
        echo -e "\tsource /etc/profile.d/autojump.zsh"
        echo
        echo "You need to source your ~/.zshrc (source ~/.zshrc) before you can start using autojump."
    else
        echo "Your distribution does not have a /etc/profile.d directory, the default that we install one of the scripts to. Would you like us to copy it into your ~/.zshrc file to make it work? (If you have done this once before, delete the old version before doing it again.) [y/n]"
        read ans
        if [ ${#ans} -gt 0 ]; then
            if [ $ans = "y" -o $ans = "Y" -o $ans = "yes" -o $ans = "Yes" ]; then
                echo "" >> ~/.zshrc
                echo "#autojump" >> ~/.zshrc
                cat autojump.zsh >> ~/.zshrc
                    echo "Done!"
                    echo
                    echo "You need to source your ~/.zshrc (source ~/.zshrc) before you can start using autojump."
            else
                echo "Then you need to put autojump.zsh, or the code from it, somewhere where it will get read. Good luck!"
            fi
        else
            echo "Then you need to put autojump.zsh, or the code from it, somewhere where it will get read. Good luck!"
        fi
    fi
else
    mkdir -p ${prefix}/functions/
    cp _j ${prefix}/functions/

    mkdir -p ${prefix}/etc/profile.d/
    cp autojump.zsh ${prefix}/etc/profile.d/
    cp autojump.sh ${prefix}/etc/profile.d/

    echo
    echo "Add the following lines to your ~/.zshrc:"
    echo
    echo -e "\tsource ${prefix}/etc/profile.d/autojump.zsh"
    echo
    echo "You need to source your ~/.zshrc (source ~/.zshrc) before you can start using autojump."
    echo
    echo "To remove autojump, delete the ${prefix} directory and relevant lines from ~/.zshrc."
fi