#!/bin/sh

echo -e "\nInstalling Subdomain Client...\n"

# Define constants
echo "Reading constants..."
DEPENDENCIES=requests
PYSCRIPT=refresh_subdomain.py
INSTALLDIR=~/.local/share/refresh_subdomain
BINDIR=~/.local/bin
ENVDIR=~/.local/share/refresh_subdomain/venv
SYSTEMDDIR=~/.config/systemd/user
FILES2COPY=refresh_subdomain.py

echo -e "Constants:\n\tDependencies: $DEPENDENCIES\n\tInstall Directory: $INSTALLDIR\n\tLaunch Script: $BINDIR/refresh_subdomain\n\tEnvironment Directory: $ENVDIR\n\tFiles to Copy: $FILES2COPY\n"

echo "Checking install files..."
# Make sure files to install are in current directory
MISSINGFILES=false
for file in $FILES2COPY; do
    if [ ! -f "$file" ]; then
        MISSINGFILES=true
    fi
done

if [ "$MISSINGFILES" = true ]; then
    echo "Error: Required Install files not found in current directory"
    echo "       Required files: $FILES2COPY"
    echo "       Run this script from the root of the project directory"
    exit 1
fi

# Test for venv
echo "Checking for venv..."
DEP_VENV=false
python3 -c "import venv" && DEP_VENV=true || DEP_VENV=false


if [ "$DEP_VENV" = false ]; then
    echo "Venv not installed. Installing venv..."
    python3 -m pip install venv

    DEP_VENV=false
    python3 -c "import venv" && DEP_VENV=true || DEP_VENV=false

    if [ "$DEP_VENV" = false ]; then
        echo "Error: venv not installed"
        exit 1
    fi
fi

# Make install directory
echo "Creating install directory..."
if [ ! -d "$INSTALLDIR" ]; then
    mkdir -p "$INSTALLDIR"
fi

# Copy files to install directory
echo "Copying files to install directory..."
for file in $FILES2COPY; do
    cp "$file" "${INSTALLDIR}/"
done

cd "$INSTALLDIR"

# Create and activate venv if needed
echo "Creating and activating venv..."
if [ ! -d "$ENVDIR" ]; then
    python3 -m venv "$ENVDIR"
fi
source "$ENVDIR/bin/activate"

# Install Deps
echo "Installing Dependencies..."
for dep in $DEPENDENCIES; do
    pip install "$dep"
done

# deactivate venv
echo "Deactivating venv..."
deactivate

if [ ! -d "$BINDIR" ]; then
    echo "Creating ~/.local/bin to hold launch script..."
    mkdir -p "$BINDIR"
fi

# Setup launch script
echo "Creating launch script..."
cat <<EOF > "$BINDIR/refresh_subdomain"
#!/bin/bash
cd "$INSTALLDIR"
source "$ENVDIR/bin/activate"
python3 "$PYSCRIPT" \$@"
EOF

chmod +x "$BINDIR/refresh_subdomain"

# Setup systemd service
if [ ! -d "$SYSTEMDDIR" ]; then
    echo "Creating systemd user service directory..."
    mkdir -p "$SYSTEMDDIR"
fi

echo "Creating systemd user service..."
cat <<EOF > $SYSTEMDDIR/subdomain.service
/refresh_subdomain.service
[Unit]
Description=Refresh Subdomain Service

[Service]
ExecStart=$BINDIR/refresh_subdomain
EOF

echo "Creating systemd user timer..."
cat <<EOF > $SYSTEMDDIR/subdomain.timer
[Unit]
Description=Refresh Subdomain Timer

[Timer]
OnCalendar=hourly
Persistent=true

[Install]
WantedBy=timers.target
EOF

echo "Enabling systemd service..."
systemctl --user daemon-reload
systemctl --user enable subdomain.timer

echo "Installation Complete"