#!/usr/bin/env bash
# gniza install script
# Installs to /usr/local/gniza and creates symlink in /usr/local/bin

set -euo pipefail

INSTALL_DIR="/usr/local/gniza"
BIN_LINK="/usr/local/bin/gniza"

if [[ $EUID -ne 0 ]]; then
    echo "Error: install.sh must be run as root" >&2
    exit 1
fi

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

echo "Installing gniza to $INSTALL_DIR..."

# Create install directory
mkdir -p "$INSTALL_DIR"

# Copy files
cp -r "$SOURCE_DIR/bin" "$INSTALL_DIR/"
cp -r "$SOURCE_DIR/lib" "$INSTALL_DIR/"
cp -r "$SOURCE_DIR/etc" "$INSTALL_DIR/"

# Make bin executable
chmod +x "$INSTALL_DIR/bin/gniza"

# Create symlink
ln -sf "$INSTALL_DIR/bin/gniza" "$BIN_LINK"

# Create working directory
mkdir -p "$INSTALL_DIR/workdir"

# Create config directory structure
mkdir -p /etc/gniza
mkdir -p /etc/gniza/remotes.d
mkdir -p /etc/gniza/schedules.d

# Copy example configs if no config exists
if [[ ! -f /etc/gniza/gniza.conf ]]; then
    cp "$INSTALL_DIR/etc/gniza.conf.example" /etc/gniza/gniza.conf.example
    echo "Example config copied to /etc/gniza/gniza.conf.example"
fi
cp "$INSTALL_DIR/etc/remote.conf.example" /etc/gniza/remote.conf.example
cp "$INSTALL_DIR/etc/schedule.conf.example" /etc/gniza/schedule.conf.example

# Create log directory
mkdir -p /var/log/gniza

echo "gniza installed successfully!"

# ── WHM Plugin (if cPanel/WHM is present) ─────────────────────
WHM_CGI_DIR="/usr/local/cpanel/whostmgr/docroot/cgi"
if [[ -d "$WHM_CGI_DIR" ]]; then
    echo "Installing WHM plugin..."
    cp -r "$SOURCE_DIR/whm/gniza-whm" "$WHM_CGI_DIR/"
    cp "$SOURCE_DIR/whm/gniza-whm.conf" "$WHM_CGI_DIR/gniza-whm/"
    chmod +x "$WHM_CGI_DIR/gniza-whm/"*.cgi
    /usr/local/cpanel/bin/register_appconfig "$WHM_CGI_DIR/gniza-whm/gniza-whm.conf"
    echo "WHM plugin installed — access via WHM > Plugins > gniza Backup Manager"
else
    echo "WHM not detected, skipping WHM plugin installation."
fi

echo ""
echo "Next steps:"
echo "  1. Run 'gniza init' to create your configuration"
echo "  2. Or copy /etc/gniza/gniza.conf.example to /etc/gniza/gniza.conf"
echo "  3. Run 'gniza status' to verify your setup"