#!/bin/bash
# Author: Hsin-Yi Chen <ossug.hychen AT gmail.com>
ERRMSG_WRONGDIR='You are not under octopress directory'
[ ! -f _config.yml ] && echo ${ERRMSG_WRONGDIR} && exit

BLOGDIR=${PWD}

deploy(){
    git checkout source
    git push origin source
    rake generate
    rake deploy
}

update_octopress(){
    echo 'upgrading octopress source'
    git pull octopress master     # Get the latest Octopress
    bundle install                # Keep gems updated
    rake update_source            # update the template's source
    rake update_style             # update the template's style
}

preview(){
    rake preview &
    sleep 1
    sensible-browser 127.0.0.1:4000
}

upgrade(){
    update_octopress
    deploy
}

# start to write new post
# @param: post title
post(){
    local title=${1?"requires title"}
    _new_item post ${title}
}

# start to write new page
# @param: page title
page(){
    _new_item page $1
}

_new_item(){
    local tmpfile=`mktemp`
    local item_name=${1?"requires item name"}
    local title=${2?"requires title"}
    rake new_${item_name}["\"${title}\""] | tee ${tmpfile}
    local file=`cat ${tmpfile} | awk -F: '{print $2}' | sed -e 's/ //'`
    sensible-editor ${BLOGDIR}/$file
    rm ${tmpfile}
    # return file name
    RET=${file}
}

# Main
# ----
actions="post upgrade preview deploy"
action=${1?"requirs action!, avaliabl actions are ${actions}"}

# run action
shift
${action} $@