#!/bin/bash -e

# Download external dependencies.

working_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
cd ${working_dir}

# Clones a git repository and optionally cherry picks additional commits. The
# function will try to preserve any local changes in the repo.
# clone GIT_REPO DIR_NAME CHECKOUT_ID [CHERRY_PICK_ID]...
clone () {
  local git_repo=$1
  local dir_name=$2
  local checkout_id=$3
  shift 3
  # Clone if there's no repo.
  if [[ ! -d "$dir_name" ]]; then
    git clone "$git_repo" "$dir_name"
  fi
  pushd "$dir_name"
  # Just fetch new commits from remote repository. Don't merge/pull them in, so
  # that we don't clobber local modifications.
  git fetch
  # Check whether we have any local changes which need to be preserved.
  local local_changes=true
  if git diff --no-ext-diff --quiet && git diff --no-ext-diff --cached --quiet; then
    local_changes=false
  fi
  # Stash regardless of local_changes, so that a user gets a message on stdout.
  git stash
  # Checkout the primary commit (there's no need to pull/merge).
  git checkout $checkout_id
  # Apply any optional cherry pick fixes.
  while [[ $# -ne 0 ]]; do
    local cherry_pick_id=$1
    shift
    git cherry-pick -n $cherry_pick_id
  done
  # Reapply any local changes.
  if [[ $local_changes == true ]]; then
    git stash pop
  fi
  popd
}

# antlr
antlr_generator_filename="antlr-4.6-complete.jar"
# wget -O ${antlr_generator_filename} http://www.antlr.org/download/${antlr_generator_filename}
wget -nv -O ${antlr_generator_filename} https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/${antlr_generator_filename}
antlr4_tag="aacd2a2c95816d8dc1c05814051d631bfec4cf3e" # v4.6
clone https://github.com/antlr/antlr4.git antlr4 $antlr4_tag
# fix missing include
sed -i 's/^#pragma once/#pragma once\n#include <functional>/' antlr4/runtime/Cpp/runtime/src/support/CPPUtils.h
# remove shared library from install dependencies
sed -i 's/install(TARGETS antlr4_shared/install(TARGETS antlr4_shared OPTIONAL/' antlr4/runtime/Cpp/runtime/CMakeLists.txt

# cppitertools
# Use our fork that uses experimental/optional instead of unique_ptr in
# DerefHolder. Once we move memgraph to c++17 we can use cpp17 branch from
# original repo.
cppitertools_tag="4231e0bc6fba2737b2a7a8a1576cf06186b0de6a" # experimental_optional 17 Aug 2017
clone https://github.com/memgraph/cppitertools.git cppitertools $cppitertools_tag

# fmt
fmt_tag="7fa8f8fa48b0903deab5bb42e6760477173ac485" # v3.0.1
# Commit which fixes an issue when compiling with C++14 and higher.
fmt_cxx14_fix="b9aaa507fc49680d037fd84c043f747a395bce04"
clone https://github.com/fmtlib/fmt.git fmt $fmt_tag $fmt_cxx14_fix

# rapidcheck
rapidcheck_tag="853e14f0f4313a9eb3c71e24848373e7b843dfd1" # Jun 23, 2017
clone https://github.com/emil-e/rapidcheck.git rapidcheck $rapidcheck_tag

# google benchmark
benchmark_tag="4f8bfeae470950ef005327973f15b0044eceaceb" # v1.1.0
clone https://github.com/google/benchmark.git benchmark $benchmark_tag

# google test
googletest_tag="ec44c6c1675c25b9827aacd08c02433cccde7780" # v1.8.0
clone https://github.com/google/googletest.git googletest $googletest_tag

# google logging
glog_tag="042a21657e79784226babab8b942f7bd0949635f" # custom version (v0.3.5+)
clone https://github.com/memgraph/glog.git glog $glog_tag

# google flags
gflags_tag="b37ceb03a0e56c9f15ce80409438a555f8a67b7c" # custom version (May 6, 2017)
clone https://github.com/memgraph/gflags.git gflags $gflags_tag

# libbcrypt
libbcrypt_tag="8aa32ad94ebe06b76853b0767c910c9fbf7ccef4" # custom version (Dec 16, 2016)
clone https://github.com/rg3/libbcrypt libbcrypt $libbcrypt_tag

# neo4j
wget -nv https://s3-eu-west-1.amazonaws.com/deps.memgraph.io/neo4j-community-3.2.3-unix.tar.gz -O neo4j.tar.gz
tar -xzf neo4j.tar.gz
rm -rf neo4j
mv neo4j-community-3.2.3 neo4j
rm neo4j.tar.gz

# nlohmann json
# We wget header instead of cloning repo since repo is huge (lots of test data).
# We use head on Sep 1, 2017 instead of last release since it was long time ago.
mkdir -p json
cd json
wget "https://raw.githubusercontent.com/nlohmann/json/91e003285312167ad8365f387438ea371b465a7e/src/json.hpp"
cd ..

bzip2_tag="0405487e2b1de738e7f1c8afb50d19cf44e8d580"  # v1.0.6 (May 26, 2011)
clone https://github.com/VFR-maniac/bzip2 bzip2 $bzip2_tag

zlib_tag="cacf7f1d4e3d44d871b605da3b647f07d718623f" # v1.2.11.
clone https://github.com/madler/zlib.git zlib $zlib_tag
# remove shared library from install dependencies
sed -i 's/install(TARGETS zlib zlibstatic/install(TARGETS zlibstatic/g' zlib/CMakeLists.txt

rocksdb_tag="641fae60f63619ed5d0c9d9e4c4ea5a0ffa3e253" # v5.18.3 Feb 11, 2019
clone https://github.com/facebook/rocksdb.git rocksdb $rocksdb_tag
# fix compilation flags to work with clang 8
sed -i 's/-Wshadow/-Wno-defaulted-function-deleted/' rocksdb/CMakeLists.txt
# remove shared library from install dependencies
sed -i 's/TARGETS ${ROCKSDB_SHARED_LIB}/TARGETS ${ROCKSDB_SHARED_LIB} OPTIONAL/' rocksdb/CMakeLists.txt

# mgclient
mgclient_tag="fe94b3631385ef5dbe40a3d8458860dbcc33e6ea" # May 27, 2019
clone https://github.com/memgraph/mgclient.git mgclient $mgclient_tag
sed -i 's/\${CMAKE_INSTALL_LIBDIR}/lib/' mgclient/src/CMakeLists.txt