#!/bin/bash

################################################################################
# THIS SCRIPT USED FOR CHECKOUT/UPDATE REMOTE SITE USING SVN
#
# VERSION 1.0.3
# 
# 1. place scripts in save level with site and www folders
# 2. update variables in the remote-update-config.sh
# 3. make sure there no site and www/index.php in remote server to make checkout
# 4. run this script
# 5. you should manually do following tasks:
#   - setup database dump
#   - setup cronjobs
#   - upload userfiles
#   - upload local.config.php
# 6. use the same script to upload changed files to remote server
# 
################################################################################

if test $(uname -n) != "CatZilla"; then
    echo "> ERROR: script should be executed on CatZilla" 1>&2
    exit 1
fi

SCRIPT_DIR=$(dirname $0)

if [[ ! -f "$SCRIPT_DIR/template-remote-update.sh" || ! -f "$SCRIPT_DIR/template-remote-checkout.sh" ]] ; then
    echo "> ERROR: can not found script templates" 1>&2
    exit 1
fi

# custom exit codes
ERR_CODE_NO_CHECKOUT=75
ERR_CODE_EXEC_ERROR=77

SVN_HOST="svn.adaptainc.com:80"
SVN_BIND_PORT="8888"

SVN_WK_PATH=$(svn info | grep "URL:" | awk '{print $2}' | cut -d/ -f4-)


substVars()
{
    sed -e "s|{{ERR_CODE_NO_CHECKOUT}}|$ERR_CODE_NO_CHECKOUT|g" \
        | sed -e "s|{{ERR_CODE_EXEC_ERROR}}|$ERR_CODE_EXEC_ERROR|g" \
        | sed -e "s|{{REMOTE_HOST}}|$REMOTE_HOST|g" \
        | sed -e "s|{{REMOTE_SITE_DIR}}|$REMOTE_SITE_DIR|g" \
        | sed -e "s|{{REMOTE_WWW_DIR}}|$REMOTE_WWW_DIR|g" \
        | sed -e "s|{{SVN_REPO_PATH}}|$SVN_REPO_PATH|g" \
        | sed -e "s|{{SVN_QSF_REPO_PATH}}|$SVN_QSF_REPO_PATH|g" \
        | sed -e "s|{{SVN_HOST}}|$SVN_HOST|g" \
        | sed -e "s|{{SVN_BIND_PORT}}|$SVN_BIND_PORT|g"
}

validate()
{
    if [ "$SVN_REPO_PATH" != "$SVN_WK_PATH" ]; then
        echo -e "\e[0;38;05;196mERROR:\e[0m The working copy URL path \e[0;38;05;196m\"$SVN_WK_PATH\"\e[0m different from one that is set in the SVN_REPO_PATH=\e[0;38;05;120m\"$SVN_REPO_PATH\"\e[0m."
        echo -e "Please make sure that the configuration is correct!!!"
        exit 1;
    fi
}

upload()
{
    read -p "> Update project sources from SVN (Y/N)? " -n 1
    echo
    if [[ ! $REPLY =~ ^[Yy]$ ]] ; then
        exit 1
    fi

    CMD_REMOTE_UPDATE=$(cat $SCRIPT_DIR/template-remote-update.sh | substVars)
    CMD_REMOTE_CHECKOUT=$(cat $SCRIPT_DIR/template-remote-checkout.sh | substVars)

    echo "> running remote command ..."
    ssh -TR ${SVN_BIND_PORT}:${SVN_HOST} ${REMOTE_HOST} "$CMD_REMOTE_UPDATE"
    CODE=$?
    if [[ $CODE -eq $ERR_CODE_EXEC_ERROR ]] ; then
        echo "> error executing command" 1>&2
        exit 1
    elif [[  $CODE -eq $ERR_CODE_NO_CHECKOUT ]] ; then
        read -p "> Checkout project sources from SVN (Y/N)? " -n 1
        echo
        if [[ ! $REPLY =~ ^[Yy]$ ]] ; then
            exit 1
        fi
        ssh -TR ${SVN_BIND_PORT}:${SVN_HOST} ${REMOTE_HOST} "$CMD_REMOTE_CHECKOUT"
        CODE=$?
        if [[ $CODE -eq $ERR_CODE_EXEC_ERROR ]] ; then
            echo "> error executing command" 1>&2
            exit 1
        fi
    fi

    echo "> done"
}

#----------------------------------------------------------------------------------------------------------------------
# MAIN
#----------------------------------------------------------------------------------------------------------------------
for file in remote-update-config*
do
    . $file

    echo "REMOTE_HOST:       ${REMOTE_HOST}"
    echo "REMOTE_SITE_DIR:   ${REMOTE_SITE_DIR}"
    echo "REMOTE_WWW_DIR:    ${REMOTE_WWW_DIR}"
    echo "SVN_REPO_PATH:     ${SVN_REPO_PATH}"
    echo "SVN_QSF_REPO_PATH: ${SVN_QSF_REPO_PATH}"
    echo

    validate

    for opt in $@ ; do
    case ${opt} in
        ( '--force-pack-all' )
            shift
            read -p "> Do you want to repack all js/css files (Y/N)? " -n 1
            echo
            if [[ ! $REPLY =~ ^[Yy]$ ]] ; then
                exit 1
            fi

            REMOTE_CMD=$(cat $SCRIPT_DIR/template-remote-pack.sh | substVars)
            echo "> running remote command ..."
            ssh -TR ${SVN_BIND_PORT}:${SVN_HOST} ${REMOTE_HOST} "$REMOTE_CMD"
            CODE=$?
            if [[ $CODE -eq $ERR_CODE_EXEC_ERROR ]] ; then
                echo "> error executing command" 1>&2
                exit 1
            fi
            echo "> done"
            exit
            ;;
    esac
    done

    upload
    if [ -f "site/bin/hart" ] ; then
        scp site/bin/hart "$REMOTE_HOST:$REMOTE_SITE_DIR/bin/hart"
    fi
done

exit 0