#!/bin/bash

PROJECT_DIR=~/pantalaimon-build
TMP_DIR="${PROJECT_DIR}/tmp"

VIRTENV_DIR="${PROJECT_DIR}/virtenv"

OLM_DIR="${PROJECT_DIR}/olm"
PANTALAIMON_DIR="${PROJECT_DIR}/pantalaimon"

PYTHON_VERSION_MINOR="3.7"
PYTHON_VERSION_PATCH="7"
PYTHON_VERSION="${PYTHON_VERSION_MINOR}.${PYTHON_VERSION_PATCH}"
PYTHON_DIR="${PROJECT_DIR}/python"
PYTHON_SRC_DIR="${TMP_DIR}/Python-${PYTHON_VERSION}"
PYTHON="${PYTHON_DIR}/bin/python${PYTHON_VERSION_MINOR}"

mkdir -p "${PROJECT_DIR}"
mkdir -p "${TMP_DIR}"

PACKAGES="make cmake build-essential zlibc python3-venv libffi-dev ppa-purge libssl-dev libsqlite3-dev"

PANTALAIMON_PATCH_CONTENT="
diff --git a/pantalaimon/main.py b/pantalaimon/main.py
index 896d29e..3e0fee8 100644
--- a/pantalaimon/main.py
+++ b/pantalaimon/main.py
@@ -32,6 +32,7 @@ from pantalaimon.log import logger
 from pantalaimon.thread_messages import DaemonResponse
 from pantalaimon.ui import UI_ENABLED

+keyring.core.set_keyring(keyring.core.load_keyring('keyring.backends.SecretService.Keyring'))

 def create_dirs(data_dir, conf_dir):
     try:
"

echo "Remounting RootFS writable..."
sudo mount -o remount,rw /

echo "Installing dependencies..."
sudo apt update
sudo apt install -y ${PACKAGES}

if [ ! -e "${OLM_DIR}/usr/local/lib/libolm.so" ]; then
    cd "${TMP_DIR}"
    echo "Downloading Olm..."
    wget -qO- "https://gitlab.matrix.org/matrix-org/olm/-/archive/master/olm-master.tar.gz" | tar -xz

    echo "Building Olm..."
    cd olm-master
    cmake . -Bbuild
    cmake --build build

    echo "Installing Olm..."
    cd build
    make install DESTDIR="${OLM_DIR}"
else
    echo "Olm found. Skipping Olm Install..."
fi

if [ ! -e "${PYTHON}" ]; then
    echo "Downloading Python..."
    cd "${TMP_DIR}"
    wget -qO- "https://www.python.org/ftp/python/${PYTHON_VERSION}/Python-${PYTHON_VERSION}.tgz" | tar -xz

    echo "Installing Python..."
    cd "${PYTHON_SRC_DIR}"
    ./configure --prefix="${PYTHON_DIR}" --enable-shared
    make
    make install
else
    echo "Python found. Skipping Python Install..."
fi

LD_LIBRARY_PATH=${PYTHON_DIR}/lib:${OLM_DIR}/usr/local/lib:${LD_LIBRARY_PATH}
export LD_LIBRARY_PATH

echo "Installing PyInstaller..."
${PYTHON} -m pip install --upgrade pyinstaller

echo "Installing Pantalaimon..."
CFLAGS=-I"${OLM_DIR}/usr/local/include -I${OLM_DIR}/usr/local/include" LDFLAGS="-L${OLM_DIR}/usr/local/lib" ${PYTHON} -m pip install --upgrade pantalaimon

echo "Bundling Pantalaimon..."
cd ${PROJECT_DIR}
echo "${PANTALAIMON_PATCH_CONTENT}" > main.patch
patch ${PYTHON_DIR}/lib/python${PYTHON_VERSION_MINOR}/site-packages/pantalaimon/main.py main.patch
${PYTHON_DIR}/bin/pyinstaller --onefile ${PYTHON_DIR}/bin/pantalaimon

echo "Cleaning up, reverting changes to RootFS..."
sudo apt autoremove -y ${PACKAGES}
sudo apt clean