#!/bin/sh


#******************************************************
#Title: lau_build-1
#Description: Lua build script because I suck at Makefiles
#Author:Russell Haley
#Date:May23 2016
#License: Simplified BSD
#******************************************************

#Helper Functions to clean the code up.
get_src()
{
  echo "Downloading..."
  git clone $1 $2
}

run_build()
{
  echo "Building..."
  cd $1
  $2
}

run_install()
{
  echo "Installing..."
  cd $1
  sudo gmake install
}

say_hello()
{
  echo "Begin DWE build script for Lua ${LUA_VER}"
  echo "Build Target Path: ${BUILD_DIR}/lua"
}

#Removes all the source code from the tmp directory
run_cleanup()
{
  echo "Removing any previous builds..."
  rm -rf ${BUILD_DIR} #/luarocks
}


build_lua()
{
  get_src "https://github.com/lua/lua.git" ${BUILD_DIR}"/lua"
  operation_system=`uname -s | tr '[:upper:]' '[:lower:]'`
  cd ${BUILD_DIR}"/lua/src"
  echo "patch the lua build to include the -fPIC flag to allow shared files"
  sed -i -e 's/MYCFLAGS=/MYCFLAGS=-fPIC/g' Makefile
  #Undo the previous change...
  #sed -i -e 's/MYCFLAGS=-fPIC/MYCFLAGS=/g' Makefile
 echo ${operating_system}
  run_build ${BUILD_DIR}"/lua/src" "${MAKE} ${operation_system}"
    echo "Installing Lua"
  run_install ${BUILD_DIR}"/lua"
}

#copies all the Lua files to the correct locations
#see https://bitbucket.org/envb/dwe/issues/3 for locations
#RH May 27 2016 - I don't think this is needed if we just
#use the standard lua install path
install_lua()
{



    cd $1
    sudo ${MAKE} install
    sudo mkdir -p ${LUA_BIN_DIR}

    cd ${BUILD_DIR}"/lua/src"
    sudo cp lua ${LUA_BIN_DIR}
    #THIS IS OBVIOSULY WRONG
    #ln -s ${LUA_BIN_DIR}/lua -t /usr/local/bin/

    sudo cp luac ${LUA_BIN_DIR}
    #THIS IS OBVIOSULY WRONG
    #ln -s ${LUA_BIN_DIR}/luac -t /usr/local/bin/

    sudo mkdir -p ${LUA_INCL_DIR}

    #These are the header files used by c modules
    #to compile against lua
    sudo cp lua.h ${LUA_INCL_DIR}
    sudo cp lauxlib.h ${LUA_INCL_DIR}
    sudo cp lualib.h ${LUA_INCL_DIR}
    sudo cp luaconf.h ${LUA_INCL_DIR}

    #Directory where all the libriaries will go.
    sudo mkdir -p ${LUA_LIB_DIR}

    }

#Symas Lightning Memory-mapped Database
#https://symas.com/products/lightning-memory-mapped-database/
#https://github.com/lmdb/
build_lmdb()
{
  get_src "https://github.com/lmdb/lmdb.git" ${BUILD_DIR}"/lmdb"
  run_build ${BUILD_DIR}"/lmdb/libraries/liblmdb/" "make"
  run_install ${BUILD_DIR}"/lmdb/libraries/liblmdb/"
}

#https://github.com/keplerproject/luarocks
build_lua_rocks()
{
  get_src "https://github.com/keplerproject/luarocks.git" ${BUILD_DIR}"/luarocks"
  cd ${BUILD_DIR}"/luarocks"
  #sh configure --with-lua-include=${LUA_INCL_DIR} --with-lua-lib=${LUA_LIB_DIR} --with-lua-bin=${LUA_BIN_DIR}
  sh configure
  run_build ${BUILD_DIR}"/luarocks" "${MAKE} build"
  run_install ${BUILD_DIR}"/luarocks"
}

build_luaxml()
{
mkdir ${BUILD_DIR}/viremo
cd ${BUILD_DIR}/viremo/
wget -O LuaXML_130610.zip http://viremo.eludi.net/LuaXML/LuaXML_130610.zip
mkdir -p LuaXML/src
unzip -d LuaXML/src LuaXML_130610.zip
cd LuaXML/src
make
sudo cp LuaXML_lib.so ${LUA_LIB_DIR}
sudo cp LuaXml.lua ${LUA_LIB_DIR}
}

build_luasys()
{
cd ${BUILD_DIR}
git clone https://github.com/russellhaley/luasys.git
cd luasys/src
make && sudo make install
}

build_lua_t()
{}

rocks_penlight(){}

rocks_lightning(){}

#Sets all the important variables
#for building lua and other stuffs.
setup()
{

    #Not ready for this yet!
    #LUA_BIN_DIR=/usr/local/bin/lua/5.3
    #LUA_LIB_DIR=/usr/local/lib/lua/5.3
    #LUA_INCL_DIR=/usr/local/include/5.3

    LUA_BIN_DIR=/usr/local/bin/lua/5.3
    LUA_LIB_DIR=/usr/local/lib/lua/5.3
    LUA_INCL_DIR=/usr/local/include/5.3

    MAKE=gmake

    BUILD_DIR=/tmp/build

    OBJ_DIR=/tmp/obj
    LUA_VER=5.3
}

# This is used to delete the installation and start again.
teardown()
{
    rm -rf ${LUA_BIN_DIR}
    rm -rf ${LUA_LIB_DIR}
    rm -rf ${LUA_INCL_DIR}
}


setup

say_hello
run_cleanup
build_lua
build_lmdb
build_lua_rocks
build_luaxml
build_luasys
sudo luarocks install lightningmdb

#sudo luarocks penlight --> Need to get rid of this for now. find a different configuration Parser?