#! /bin/sh

for arg in $@; do
    option=`echo "'$arg'" | cut -d'=' -f1 | tr -d "'"`
    value=`echo "'$arg'" | cut -d'=' -f2- | tr -d "'"`
    if [ "$value" == "$option" ]; then value=""; fi
    case "$option" in
        -d|--git-dir) GIT_DIR=$value;;
        -t|--tasks-dir) TASKS_DIR=$value;;
        *) GIT_REMOTE=$arg;;
    esac
done

GIT_DIR=${GIT_DIR:-$HOME/usr/git}
TASKS_DIR=${TASKS_DIR:-$GIT_DIR/templates/ruby-gem/tasks}
DIFF_OPTS=${DIFF_OPTS:--y --suppress-common-lines}

RESET="\033[0m"
RED="\033[0;31m"
GREEN="\033[0;32m"
BROWN="\033[0;33m"
PURPLE="\033[0;35m"
CYAN="\033[0;36m"
YELLOW="\033[1;33m"

function update() {
    echo -e "\n${BROWN}${1}${RESET} :  ${YELLOW}${2} ${PURPLE}${3}${RESET} differs ..."
    diff ${DIFF_OPTS} ${3} ${2}
    read -p "  update it? [yN]" RET
    if [ "${RET}" = "Y" -o "${RET}" = "y" ]; then
        cp ${2} ${3}
    fi
}

function copy() {
    echo -e "\n${BROWN}${1}${RESET} : ${PURPLE}${3}${RESET} does not exists"
    read -p "  create it? [yN]" RET
    if [ "${RET}" = "Y" -o "${RET}" = "y" ]; then
        cp ${2} ${3}
    fi
}

echo -e "task dir:${YELLOW}${TASKS_DIR}${RESET}"
for gitdir in ${GIT_DIR}; do
    echo -e "enter ${BROWN}${gitdir}${RESET}" && cd ${gitdir} || return 1
    for dir in $(ls -1); do
        [ -d ${dir} ] && [ -e ${dir}/tasks/gem.rake ] || continue
        # SEARCH REMOTE
        echo -e "  enter ${BROWN}${dir}${RESET}" && cd $dir || exit 1
        for task_file in ${TASKS_DIR}/*; do
            dest="./tasks/${task_file##*/}"
            if [ -e $dest ]; then
                cmp -s ${task_file} ${dest} || update ${dir} ${task_file} ${dest}
            else
                copy ${dir} ${task_file} ${dest}
            fi
        done
        echo -e "  leave ${BROWN}${dir}${RESET}\n" && cd .. || exit 1
    done
    echo -e "leave ${BROWN}${gitdir}${RESET}"
done