#!/usr/bin/env bash

set -e

if ! unix2dos -V 2>/dev/null >&2; then
    fatal "missing command required: unix2dos"
fi

if ! hg version 2>/dev/null >&2; then
    fatal "missing command required: hg (mercurial)"
fi

if ! axel --version 2>/dev/null >&2 && ! wget --version 2>/dev/null >&2; then
    fatal "missing command required: wget"
fi

if ! tar --version 2>/dev/null >&2 && ! gzip --version 2>/dev/null >&2; then
    fatal "missing commands required: tar, gzip"
fi

abs_path() {
    if realpath -m -- $1 2>/dev/null >&2; then
        realpath -m -- $1

    else
        readlink -f -- $1
    fi
}

root_dir=$(dirname $(abs_path $0/..))

. $root_dir/util/base
. $root_dir/util/ver

name=openresty-$openresty_ver
bundle_dir=$root_dir/$name/bundle
work_dir=$root_dir/work

echo "openresty $openresty_ver"

rm -rf $name *.tar.gz
mkdir -p $work_dir $bundle_dir

cd $bundle_dir

download "https://openresty.org/download/nginx-$nginx_ver.tar.gz" \
    nginx-$nginx_ver.tar.gz
tar -xzf nginx-$nginx_ver.tar.gz

apply_nginx_patches \
    nginx-$nginx_ver \
    $nginx_ver \
    "with-prod-patches"

# download archives (parallel)

for tarball in ${tarballs[@]}; do
    tarball_name=$(echo $tarball | cut -d'/' -f2)
    tarball_ver_name="$(sed s/-/_/g <<<$tarball_name)_ver"
    tarball_ver="${!tarball_ver_name}"

    if [ -z $tarball_ver ]; then
        fatal "no version specified for $tarball_name tarball"
    fi

    download "https://github.com/$tarball/tarball/$tarball_ver" \
        $tarball_name-$tarball_ver.tar.gz &
done

download "https://people.freebsd.org/~osa/ngx_http_redis-$ngx_http_redis_ver.tar.gz" \
    redis-nginx-module-$ngx_http_redis_ver.tar.gz

wait

# extract archives

for tarball in ${tarballs[@]}; do
    tarball_org=$(echo $tarball | cut -d'/' -f1)
    tarball_name=$(echo $tarball | cut -d'/' -f2)
    tarball_ver_name="$(sed s/-/_/g <<<$tarball_name)_ver"
    tarball_ver="${!tarball_ver_name}"

    tar -xzf $tarball_name-$tarball_ver.tar.gz
    mv $tarball_org-$tarball_name-* $tarball_name-${tarball_ver/#v}

    pushd $tarball_name-${tarball_ver/#v}
        if [ -f Makefile ]; then
            sed 's/\$(DESTDIR)\//$(DESTDIR)/g' Makefile > Makefile.tmp
            mv Makefile.tmp Makefile
        fi
    popd
done

tar -xzf redis-nginx-module-$ngx_http_redis_ver.tar.gz

rm -f *.tar.*

mv ngx_http_redis-* redis-nginx-module-${ngx_http_redis_ver/#v}
mv luajit2-* LuaJIT-${luajit2_ver/#v}
mv lua-nginx-module-* ngx_lua-${lua_nginx_module_ver/#v}
mv stream-lua-nginx-module-* ngx_stream_lua-${stream_lua_nginx_module_ver/#v}
mv lua-upstream-nginx-module-* ngx_lua_upstream-${lua_upstream_nginx_module_ver/#v}

pushd LuaJIT-*
    apply_patch -p1 "luajit-win32-default-paths.patch"
popd

pushd redis-nginx-module-*
    apply_patch -p1 "ngx_http_redis-$ngx_http_redis_ver-variables_in_redis_pass.patch"
    apply_patch -p1 "ngx_http_redis-$ngx_http_redis_ver-default_port_fix.patch"
    apply_patch -p1 "ngx_http_redis-$ngx_http_redis_ver-without_gzip.patch"
popd

cd ..

resty_cli_dir=$bundle_dir/resty-cli-${resty_cli_ver/#v}

mkdir -p util patches

# openresty-$ver

cp $root_dir/COPYRIGHT .
cp $root_dir/util/configure .
cp $root_dir/README.markdown .

perl $resty_cli_dir/bin/md2pod.pl $root_dir/doc/README-windows.md | pod2text > README-windows.txt
unix2dos README-windows.txt

# openresty-$ver/bundle

cp $root_dir/util/install bundle

# openresty-$ver/util

cp $root_dir/util/package-win32.sh util
cp $root_dir/util/build-win32.sh util

# openresty-$ver/patches

cp $root_dir/patches/openssl-*.patch patches/

sed $"s/NGINX_VERSION \"\.unknown/NGINX_VERSION \".$minor_ver/" \
    $root_dir/patches/nginx-$nginx_ver-no_pool.patch > patches/nginx-no_pool.patch

# generate restydoc index from nginx docs
# openresty-$ver/bundle/resty.index

cp $root_dir/html/index.html $bundle_dir/nginx-$nginx_ver/docs/html/
cp $root_dir/html/50x.html $bundle_dir/nginx-$nginx_ver/docs/html/

restydoc_index=$resty_cli_dir/bin/restydoc-index
#restydoc_index=echo
#restydoc_index=$HOME/git/resty-cli/bin/restydoc-index
nginx_xml2pod=$resty_cli_dir/bin/nginx-xml2pod
#nginx_xml2pod=echo
#nginx_xml2pod=$HOME/git/resty-cli/bin/nginx-xml2pod

pushd $work_dir
    if [ -d nginx.org ]; then
        pushd nginx.org
            hg pull
            hg update --clean
        popd

    else
        hg clone http://hg.nginx.org/nginx.org
    fi

    pushd nginx.org
        hg purge --config extensions.purge=
        find xml/en/docs -name 'ngx_http_api_module.xml' -delete
        rm -f xml/en/docs/njs/*
        $nginx_xml2pod xml/en/docs
    popd
popd

echo "restydoc-index $work_dir/nginx.org"
$restydoc_index --outdir bundle $work_dir/nginx.org

echo "restydoc-index $root_dir/doc/lua-5.1.5"
$restydoc_index --outdir bundle $root_dir/doc/lua-5.1.5

echo "restydoc-index $root_dir/doc/LuaJIT-2.1"
$restydoc_index --outdir bundle $root_dir/doc/LuaJIT-2.1

# generate restydoc index from openresty docs

for indir in bundle/*/; do
    #echo "processing directory $indir ..."

    if [ "$indir" == "bundle/pod/" ]; then
        continue
    fi

    if [ "$indir" == "bundle/nginx-$nginx_ver/" ]; then
        continue
    fi

    echo "restydoc-index --outdir bundle $indir"
    $restydoc_index --outdir bundle $indir
done

find bundle -name '*.md' -delete
find bundle -name '*.markdown' -delete
find bundle -name '*.wiki' -delete
find bundle -name '*~' -delete
find bundle -name '*.orig' -delete

cd $root_dir

tar cf $name.tar $name
gzip -f --best $name.tar