#!/bin/bash

# config
SITE_DIR='./site'
WWW_DIRS='./www ./public_html .'
DEFAULT_COMMANDS='doRemoveCache doRemoveMerge doMoveHtaccess'

# do not touch this
WWW_DIR=''
VERBOSE=''
COMMANDS=''

CL_DEFAULT='\E[0m'
CL_BLACK='\E[30m'
CL_RED='\E[31m'
CL_GREEN='\E[32m'
CL_YELLOW='\E[33m'
CL_BLUE='\E[34m'
CL_WHILE='\E[37m'

# $message $color
cecho ()
{
    local message=${1:-''}
    local color=${2:-$CL_WHILE}

    echo -ne "$color"
    echo -ne "$message"
    echo -ne $CL_DEFAULT
    return
}

for path in $WWW_DIRS ; do
    if [[ -d "$path/_lib" ]] && [[ -f "$path/index.php" ]] ; then
        WWW_DIR=$path
        break        
    fi
done

if [ -d "$SITE_DIR" ] ; then
    echo -n
else
    cecho "Error: Can not find SITE_DIR: '$SITE_DIR'\n" $CL_RED
    exit
fi

if [ -d "$WWW_DIR" ] ; then
    echo -n
else
    cecho "Error: Can not find WWW_DIR. Search paths: '$WWW_DIRS'\n" $CL_RED
    exit
fi

doHelp()
{
        echo 'Version: 2011-04-12'
        echo "Usage: $(basename $0) [options...]"
        echo '-rc, --remove-cache'
        echo "          remove '$SITE_DIR/tmp/cache/zend_cache*', '$SITE_DIR/tmp/tpl_c/*.php'"
        echo '-rp, --remove-pack'
        echo "          remove '$WWW_DIR/js/*.pack.js', '$WWW_DIR/css/*.pack.css' files"
        echo '-rm, --remove-merge'
        echo "          remove '$WWW_DIR/js/*.pack.merge.js', '$WWW_DIR/css/*.pack.merge.css' files"
        echo '-mh, --move-htaccess'
        echo "          move '$WWW_DIR/.htaccess_live' to '$WWW_DIR/.htaccess'"
        echo '-v        explain what is being done'
        echo '--help    show this help'
        echo
}

# Outpus text using "cecho" only if VERBOSE turned on
verbose()
{
    if [[ -n "$VERBOSE" ]] ; then
        cecho "$@"
    fi
}

# $1-path $2-mask
checkRemoved()
{
    local result=`find $1 -type f -name $2`
    verbose "\n"
    if [[ -z $result ]] ; then
        cecho 'successfully' $CL_GREEN
    else
        cecho 'failed' $CL_RED
    fi
}

# $1-path $2-mask $3-message
doRemove()
{
    if [[ -d $1 ]] ; then
        local output=`find $1 -type f -name $2 -exec rm $VERBOSE -f {} \;`
        if [[ -n $output ]] ; then
            verbose "\n"
            echo -ne $CL_YELLOW
            echo "$output"
            echo -ne $CL_DEFAULT
        fi
        checkRemoved "$1" "$2"
    else
        cecho "fail  (Can not find directory $1)" $CL_RED
    fi
    echo
}

doRemoveCache()
{
    local message1='Removing Zend Cache '
    cecho "$message1"
    doRemove "$SITE_DIR/tmp/cache/" 'zend_cache*' "$message1"
    
    local message2='Removing Smarty Cache '
    cecho "$message2"
    doRemove "$SITE_DIR/tmp/tpl_c/" '*.php' "$message2"
}

doRemovePack()
{
    local message1='Removing *.pach.js '
    cecho "$message1"
    doRemove "$WWW_DIR/js/" '*.pack.js' "$message1"

    local message2='Removing *.pack.css '
    cecho "$message2"
    doRemove "$WWW_DIR/css/" '*.pack.css' "$message2"
}

doRemoveMerge()
{
    local message1='Removing *.merge.js '
    cecho "$message1"
    doRemove "$WWW_DIR/js/" '*.pack.merge.js' "$message1"

    local message2='Removing *.merge.css '
    cecho "$message2"
    doRemove "$WWW_DIR/css/" '*.pack.merge.css' "$message2"
}

doMoveHtaccess()
{
    cecho "Renaming .htaccess_live "
    if [[ -f "$WWW_DIR/.htaccess_live" ]] ; then
        verbose "\n"
        echo -ne $CL_YELLOW
        if [[ -f "$WWW_DIR/.htaccess" ]] ; then
            mv -T $VERBOSE -f "$WWW_DIR/.htaccess" "$WWW_DIR/.htaccess_old"
        fi
        mv -T $VERBOSE -f "$WWW_DIR/.htaccess_live" "$WWW_DIR/.htaccess"
        echo -ne $CL_DEFAULT
    fi
    if [[ -f "$WWW_DIR/.htaccess" ]] ; then
        cecho 'successfully' $CL_GREEN
    fi
    echo
}

# processing parameters
for opt in $@ ; do
    case $opt in
        ( '--help' )
            shift
            doHelp
            exit
            ;;
        ( '-v' | '--verbose' )
            shift
            VERBOSE='-v'
            ;;
        ( '-rc' | '--remove-cache' )
            shift
            COMMANDS="$COMMANDS doRemoveCache"
            ;;
        ( '-rp' | '--remove-pack' )
            shift
            COMMANDS="$COMMANDS doRemovePack"
            ;;
        ( '-rm' | '--remove-merge' )
            shift
            COMMANDS="$COMMANDS doRemoveMerge"
            ;;
        ( '-mh' | '--move-htaccess' )
            shift
            COMMANDS="$COMMANDS doMoveHtaccess"
            ;;
        ( * )
            shift
            cecho "Unknown option $opt\n" $_RED
            exit
        ;;
    esac
done

# processing commands
if [[ -z "$COMMANDS" ]] ; then
    COMMANDS=$DEFAULT_COMMANDS
fi
for cmd in $COMMANDS ; do
    $cmd
done