#!/bin/sh
# SecuBox Nextcloud Platform Controller
# Copyright (C) 2025 CyberMind.fr
#
# Manages Nextcloud in Debian-based LXC container with MariaDB & Redis

CONFIG="nextcloud"
LXC_NAME="nextcloud"
NEXTCLOUD_VERSION="31.0.5"

# Paths
LXC_PATH="/srv/lxc"
LXC_ROOTFS="$LXC_PATH/$LXC_NAME/rootfs"
LXC_CONFIG="$LXC_PATH/$LXC_NAME/config"
DATA_PATH="/srv/nextcloud"
BACKUP_PATH="/srv/nextcloud/backups"

# Logging
log_info() { echo "[INFO] $*"; logger -t nextcloud "$*"; }
log_error() { echo "[ERROR] $*" >&2; logger -t nextcloud -p err "$*"; }
log_debug() { [ "$DEBUG" = "1" ] && echo "[DEBUG] $*"; }

# Helpers
require_root() {
	[ "$(id -u)" -eq 0 ] || {
		log_error "This command requires root privileges"
		exit 1
	}
}

has_lxc() { command -v lxc-start >/dev/null 2>&1; }

ensure_dir() { [ -d "$1" ] || mkdir -p "$1"; }

uci_get() { uci -q get ${CONFIG}.$1; }
uci_set() { uci set ${CONFIG}.$1="$2" && uci commit ${CONFIG}; }

# Generate random password
gen_password() {
	head -c 16 /dev/urandom | base64 | tr -dc 'a-zA-Z0-9' | head -c 16
}

# Load configuration
load_config() {
	http_port="$(uci_get main.http_port)" || http_port="8080"
	data_path="$(uci_get main.data_path)" || data_path="/srv/nextcloud"
	domain="$(uci_get main.domain)" || domain="cloud.local"
	admin_user="$(uci_get main.admin_user)" || admin_user="admin"
	admin_password="$(uci_get main.admin_password)"
	memory_limit="$(uci_get main.memory_limit)" || memory_limit="1G"
	upload_max="$(uci_get main.upload_max)" || upload_max="512M"
	trusted_proxies="$(uci_get main.trusted_proxies)" || trusted_proxies="127.0.0.1"

	# Database settings
	db_name="$(uci_get db.name)" || db_name="nextcloud"
	db_user="$(uci_get db.user)" || db_user="nextcloud"
	db_password="$(uci_get db.password)"

	# Redis settings
	redis_enabled="$(uci_get redis.enabled)" || redis_enabled="1"
	redis_memory="$(uci_get redis.memory)" || redis_memory="128M"

	# HAProxy/SSL settings
	ssl_enabled="$(uci_get ssl.enabled)" || ssl_enabled="0"
	ssl_domain="$(uci_get ssl.domain)"
	ssl_acme="$(uci_get ssl.acme)" || ssl_acme="1"

	# Backup settings
	backup_enabled="$(uci_get backup.enabled)" || backup_enabled="1"
	backup_keep="$(uci_get backup.keep)" || backup_keep="7"

	DATA_PATH="$data_path"
	BACKUP_PATH="$data_path/backups"

	ensure_dir "$data_path"
	ensure_dir "$data_path/data"
	ensure_dir "$data_path/config"
	ensure_dir "$BACKUP_PATH"
}

# Usage
usage() {
	cat <<EOF
SecuBox Nextcloud Platform Controller

Usage: $(basename $0) <command> [options]

Commands:
  install       Create Debian LXC and install Nextcloud stack
  uninstall     Remove container (preserves data)
  update        Update Nextcloud to latest version
  start         Start Nextcloud service (via init)
  stop          Stop Nextcloud service (via init)
  restart       Restart Nextcloud service
  status        Show service status (JSON format)
  logs [-f]     Show container logs
  shell         Open shell in container

  occ <cmd>     Run Nextcloud OCC command
  backup [name] Create backup of data and database
  restore <name> Restore from backup
  list-backups  List available backups

  ssl-enable <domain>   Register with HAProxy for SSL (via WAF)
  ssl-disable           Remove HAProxy registration

  setup-mail <args>     Configure outbound email (SMTP)
  setup-backup-cron     Setup scheduled backup cron job
  connections           Show CalDAV/CardDAV/WebDAV URLs

  service-run   Start service (used by init)
  service-stop  Stop service (used by init)

Configuration:
  /etc/config/nextcloud

Data directory:
  /srv/nextcloud

EOF
}

# Check prerequisites
lxc_check_prereqs() {
	if ! has_lxc; then
		log_error "LXC not installed. Install with: opkg install lxc lxc-common"
		return 1
	fi
	return 0
}

# Create LXC rootfs from Debian
lxc_create_rootfs() {
	local rootfs="$LXC_ROOTFS"
	local arch=$(uname -m)

	log_info "Creating Debian 12 rootfs for Nextcloud..."

	ensure_dir "$rootfs"

	# Use Debian mini rootfs from LXC images
	case "$arch" in
		x86_64) deb_arch="amd64" ;;
		aarch64) deb_arch="arm64" ;;
		armv7l) deb_arch="armhf" ;;
		*) log_error "Unsupported architecture: $arch"; return 1 ;;
	esac

	# Download Debian rootfs from LXC image server
	local base_url="https://images.linuxcontainers.org/images/debian/bookworm/${deb_arch}/default"
	local index_url="${base_url}/index.json"
	local tmpdir="/tmp/debian-rootfs-$$"
	mkdir -p "$tmpdir"

	log_info "Fetching latest Debian 12 rootfs..."
	local latest_date
	# Parse HTML directory listing for latest date folder
	latest_date=$(wget -q -O- "${base_url}/" 2>/dev/null | grep -oE "20[0-9]{6}_[0-9]{2}:[0-9]{2}" | tail -1)

	if [ -z "$latest_date" ]; then
		# Fallback: use today's date with common time
		latest_date="$(date +%Y%m%d)_05:24"
		log_info "Using fallback date: $latest_date"
	fi

	# URL encode the colon
	local latest_encoded=$(echo "$latest_date" | sed 's/:/%3A/g')
	local rootfs_url="${base_url}/${latest_encoded}/rootfs.tar.xz"
	local tmpfile="$tmpdir/rootfs.tar.xz"

	log_info "Downloading from: $rootfs_url"
	wget -q -O "$tmpfile" "$rootfs_url" 2>&1 || {
		log_error "Failed to download Debian rootfs from $rootfs_url"
		rm -rf "$tmpdir"
		return 1
	}

	# Verify download
	if [ ! -s "$tmpfile" ]; then
		log_error "Downloaded file is empty"
		rm -rf "$tmpdir"
		return 1
	fi

	log_info "Extracting rootfs..."
	tar -xJf "$tmpfile" -C "$rootfs" || {
		log_error "Failed to extract rootfs"
		rm -rf "$tmpdir"
		return 1
	}
	rm -rf "$tmpdir"

	# Setup resolv.conf
	cp /etc/resolv.conf "$rootfs/etc/resolv.conf" 2>/dev/null || \
		echo "nameserver 1.1.1.1" > "$rootfs/etc/resolv.conf"

	# Create required directories
	mkdir -p "$rootfs/opt"
	mkdir -p "$rootfs/run"
	mkdir -p "$rootfs/var/www/nextcloud"

	log_info "Rootfs created successfully"
	return 0
}

# Mount filesystems for chroot
mount_chroot_fs() {
	local rootfs="$1"
	mount --bind /dev "$rootfs/dev" 2>/dev/null || true
	mount --bind /dev/pts "$rootfs/dev/pts" 2>/dev/null || true
	mount -t proc proc "$rootfs/proc" 2>/dev/null || true
	mount -t sysfs sysfs "$rootfs/sys" 2>/dev/null || true
}

# Unmount chroot filesystems
umount_chroot_fs() {
	local rootfs="$1"
	umount "$rootfs/sys" 2>/dev/null || true
	umount "$rootfs/proc" 2>/dev/null || true
	umount "$rootfs/dev/pts" 2>/dev/null || true
	umount "$rootfs/dev" 2>/dev/null || true
}

# Install packages inside container
install_container_packages() {
	local rootfs="$LXC_ROOTFS"

	log_info "Installing Nextcloud stack packages..."

	# Create install script
	cat > "$rootfs/tmp/install-deps.sh" << 'SCRIPT'
#!/bin/bash
set -e

export DEBIAN_FRONTEND=noninteractive

# Install gpg first for apt verification
apt-get update || true
apt-get install -y --no-install-recommends gnupg gpgv ca-certificates || true

# Update and install packages
apt-get update
apt-get install -y --no-install-recommends \
    nginx \
    mariadb-server \
    redis-server \
    php-fpm \
    php-gd \
    php-mysql \
    php-curl \
    php-mbstring \
    php-intl \
    php-gmp \
    php-bcmath \
    php-xml \
    php-zip \
    php-imagick \
    php-redis \
    php-apcu \
    php-ldap \
    unzip \
    curl \
    wget \
    cron

# Clean up
apt-get clean
rm -rf /var/lib/apt/lists/*

touch /tmp/.deps-installed
SCRIPT
	chmod +x "$rootfs/tmp/install-deps.sh"

	# Mount filesystems for chroot
	mount_chroot_fs "$rootfs"

	# Run via chroot (container not started yet)
	log_info "Running package installation via chroot..."
	chroot "$rootfs" /tmp/install-deps.sh
	local result=$?

	# Cleanup mounts
	umount_chroot_fs "$rootfs"

	if [ $result -ne 0 ]; then
		log_error "Failed to install packages"
		return 1
	fi

	rm -f "$rootfs/tmp/install-deps.sh"
	log_info "Container packages installed"
	return 0
}

# Download and install Nextcloud
install_nextcloud() {
	local rootfs="$LXC_ROOTFS"
	local nc_dir="$rootfs/var/www/nextcloud"

	log_info "Downloading Nextcloud ${NEXTCLOUD_VERSION}..."

	local nc_url="https://download.nextcloud.com/server/releases/nextcloud-${NEXTCLOUD_VERSION}.zip"
	local tmpfile="/tmp/nextcloud.zip"

	wget -q --show-progress -O "$tmpfile" "$nc_url" || {
		log_error "Failed to download Nextcloud"
		return 1
	}

	log_info "Extracting Nextcloud..."
	unzip -q "$tmpfile" -d "$rootfs/var/www/" || {
		log_error "Failed to extract Nextcloud"
		rm -f "$tmpfile"
		return 1
	}
	rm -f "$tmpfile"

	# Set ownership (will be fixed inside container)
	chown -R 33:33 "$nc_dir" 2>/dev/null || true

	log_info "Nextcloud installed"
	return 0
}

# Create startup script
create_startup_script() {
	local rootfs="$LXC_ROOTFS"

	cat > "$rootfs/opt/start-nextcloud.sh" << 'STARTUP'
#!/bin/bash
set -e

export PATH="/usr/sbin:/usr/bin:/sbin:/bin"

# Start MariaDB
echo "Starting MariaDB..."
service mariadb start
sleep 2

# Start Redis
echo "Starting Redis..."
service redis-server start

# Configure PHP-FPM pool
PHP_VERSION=$(ls /etc/php/ | head -1)
PHP_FPM_POOL="/etc/php/${PHP_VERSION}/fpm/pool.d/www.conf"

# Increase PHP limits
sed -i "s/upload_max_filesize = .*/upload_max_filesize = ${NEXTCLOUD_UPLOAD_MAX:-512M}/" /etc/php/${PHP_VERSION}/fpm/php.ini
sed -i "s/post_max_size = .*/post_max_size = ${NEXTCLOUD_UPLOAD_MAX:-512M}/" /etc/php/${PHP_VERSION}/fpm/php.ini
sed -i "s/memory_limit = .*/memory_limit = 512M/" /etc/php/${PHP_VERSION}/fpm/php.ini
sed -i "s/max_execution_time = .*/max_execution_time = 3600/" /etc/php/${PHP_VERSION}/fpm/php.ini

# Enable opcache
echo "opcache.enable=1" >> /etc/php/${PHP_VERSION}/fpm/php.ini
echo "opcache.memory_consumption=128" >> /etc/php/${PHP_VERSION}/fpm/php.ini
echo "opcache.interned_strings_buffer=16" >> /etc/php/${PHP_VERSION}/fpm/php.ini
echo "opcache.max_accelerated_files=10000" >> /etc/php/${PHP_VERSION}/fpm/php.ini

# Start PHP-FPM
echo "Starting PHP-FPM..."
service php${PHP_VERSION}-fpm start

# Configure Nginx
cat > /etc/nginx/sites-available/nextcloud << NGINX
server {
    listen ${NEXTCLOUD_HTTP_PORT:-8080};
    server_name _;

    root /var/www/nextcloud;
    index index.php index.html;

    client_max_body_size 512M;
    fastcgi_buffers 64 4K;

    gzip on;
    gzip_vary on;
    gzip_comp_level 4;
    gzip_min_length 256;
    gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
    gzip_types application/atom+xml text/javascript application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/wasm application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;

    add_header Referrer-Policy "no-referrer" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Permitted-Cross-Domain-Policies "none" always;
    add_header X-Robots-Tag "noindex, nofollow" always;
    add_header X-XSS-Protection "1; mode=block" always;

    location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
    }

    location ^~ /.well-known {
        location = /.well-known/carddav { return 301 /remote.php/dav/; }
        location = /.well-known/caldav  { return 301 /remote.php/dav/; }
        location /.well-known/acme-challenge { try_files $uri $uri/ =404; }
        location /.well-known/pki-validation { try_files $uri $uri/ =404; }
        return 301 /index.php$request_uri;
    }

    location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/)(?!.*\.(css|js|svg|png|gif|ico|woff2?)$) { return 404; }
    location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) { return 404; }

    # Serve app static files correctly
    location ~ ^/apps/[^/]+/(?:css|js|img|l10n)/.+$ {
        try_files \$uri /index.php\$request_uri;
        add_header Cache-Control "public, max-age=15778463, immutable";
        access_log off;
    }

    location ~ \.php(?:$|/) {
        rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|ocs-provider\/.+|.+\/richdocumentscode(_arm64)?\/proxy) /index.php$request_uri;

        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
        set $path_info $fastcgi_path_info;

        try_files $fastcgi_script_name =404;

        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $path_info;

        fastcgi_param modHeadersAvailable true;
        fastcgi_param front_controller_active true;
        fastcgi_pass unix:/run/php/php${PHP_VERSION}-fpm.sock;

        fastcgi_intercept_errors on;
        fastcgi_request_buffering off;
        fastcgi_max_temp_file_size 0;
    }

    location ~ \.(?:css|js|mjs|svg|gif|png|jpg|ico|wasm|tflite|map|ogg|flac)$ {
        try_files $uri /index.php$request_uri;
        add_header Cache-Control "public, max-age=15778463, immutable";
        access_log off;
    }

    location ~ \.woff2?$ {
        try_files $uri /index.php$request_uri;
        expires 7d;
        access_log off;
    }

    location /remote {
        return 301 /remote.php$request_uri;
    }

    location / {
        rewrite ^ /index.php\$request_uri last;
    }
}
NGINX

rm -f /etc/nginx/sites-enabled/default
ln -sf /etc/nginx/sites-available/nextcloud /etc/nginx/sites-enabled/nextcloud

# Configure cron for background jobs
echo "*/5 * * * * www-data php -f /var/www/nextcloud/cron.php" > /etc/cron.d/nextcloud
chmod 644 /etc/cron.d/nextcloud
service cron start

# Start Nginx (foreground for procd)
echo "Starting Nginx..."
exec nginx -g 'daemon off;'
STARTUP
	chmod +x "$rootfs/opt/start-nextcloud.sh"
}

# Setup database
setup_database() {
	load_config

	# Generate password if not set
	if [ -z "$db_password" ]; then
		db_password=$(gen_password)
		uci_set db.password "$db_password"
	fi

	log_info "Setting up MariaDB database..."

	# Create setup script
	cat > "$LXC_ROOTFS/tmp/setup-db.sh" << DBSCRIPT
#!/bin/bash
service mariadb start
sleep 2

mysql -u root << EOF
CREATE DATABASE IF NOT EXISTS ${db_name} CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
CREATE USER IF NOT EXISTS '${db_user}'@'localhost' IDENTIFIED BY '${db_password}';
GRANT ALL PRIVILEGES ON ${db_name}.* TO '${db_user}'@'localhost';
FLUSH PRIVILEGES;
EOF
DBSCRIPT
	chmod +x "$LXC_ROOTFS/tmp/setup-db.sh"

	# Run via chroot
	chroot "$LXC_ROOTFS" /tmp/setup-db.sh || {
		log_error "Failed to setup database"
		return 1
	}

	rm -f "$LXC_ROOTFS/tmp/setup-db.sh"
	log_info "Database setup complete"
}

# Configure Redis
setup_redis() {
	load_config
	local rootfs="$LXC_ROOTFS"

	log_info "Configuring Redis..."

	# Get memory in MB
	local redis_mb="${redis_memory%M}"
	redis_mb="${redis_mb%m}"

	# Configure Redis
	cat > "$rootfs/etc/redis/redis.conf" << EOF
bind 127.0.0.1
port 6379
daemonize yes
pidfile /run/redis/redis-server.pid
loglevel notice
logfile /var/log/redis/redis-server.log
databases 16
maxmemory ${redis_mb}mb
maxmemory-policy allkeys-lru
EOF

	log_info "Redis configured"
}

# Create LXC config
lxc_create_config() {
	load_config

	ensure_dir "$(dirname "$LXC_CONFIG")"

	# Convert memory limit to bytes
	local mem_bytes
	case "$memory_limit" in
		*G|*g) mem_bytes=$((${memory_limit%[Gg]} * 1024 * 1024 * 1024)) ;;
		*M|*m) mem_bytes=$((${memory_limit%[Mm]} * 1024 * 1024)) ;;
		*K|*k) mem_bytes=$((${memory_limit%[Kk]} * 1024)) ;;
		*) mem_bytes="$memory_limit" ;;
	esac

	cat > "$LXC_CONFIG" << EOF
# Nextcloud Platform LXC Configuration
lxc.uts.name = $LXC_NAME
lxc.rootfs.path = dir:$LXC_ROOTFS
lxc.arch = $(uname -m)

# Auto-start on boot
lxc.start.auto = 1
lxc.start.delay = 5

# Network: use host network
lxc.net.0.type = none

# Mount points
lxc.mount.auto = proc:mixed sys:ro
lxc.mount.entry = $data_path/data var/www/nextcloud/data none bind,create=dir 0 0
lxc.mount.entry = $data_path/config var/www/nextcloud/config none bind,create=dir 0 0

# Environment
lxc.environment = NEXTCLOUD_DOMAIN=$domain
lxc.environment = NEXTCLOUD_HTTP_PORT=$http_port
lxc.environment = NEXTCLOUD_UPLOAD_MAX=$upload_max
lxc.environment = NEXTCLOUD_TRUSTED_PROXIES=$trusted_proxies

# Memory limit
lxc.cgroup2.memory.max = $mem_bytes

# Security
lxc.cap.drop = sys_admin sys_module mac_admin mac_override sys_time sys_rawio

# Init command
lxc.init.cmd = /opt/start-nextcloud.sh
EOF

	log_info "LXC config created"
}

# Container control
lxc_running() {
	lxc-info -n "$LXC_NAME" -s 2>/dev/null | grep -q "RUNNING"
}

lxc_exists() {
	[ -f "$LXC_CONFIG" ] && [ -d "$LXC_ROOTFS" ]
}

lxc_stop() {
	if lxc_running; then
		log_info "Stopping Nextcloud container..."
		lxc-stop -n "$LXC_NAME" -k 2>/dev/null || true
		sleep 2
	fi
}

lxc_run() {
	load_config
	lxc_stop

	if ! lxc_exists; then
		log_error "Container not installed. Run: nextcloudctl install"
		return 1
	fi

	# Regenerate config in case settings changed
	lxc_create_config

	log_info "Starting Nextcloud container..."
	exec lxc-start -n "$LXC_NAME" -F -f "$LXC_CONFIG"
}

# Execute command in container
lxc_exec() {
	if ! lxc_running; then
		log_error "Container not running"
		return 1
	fi
	lxc-attach -n "$LXC_NAME" -- "$@"
}

# Run OCC command
lxc_occ() {
	if ! lxc_running; then
		log_error "Container not running"
		return 1
	fi
	lxc-attach -n "$LXC_NAME" -- su -s /bin/bash www-data -c "php /var/www/nextcloud/occ $*"
}

# Commands
cmd_install() {
	require_root
	load_config

	log_info "Installing Nextcloud Platform..."

	lxc_check_prereqs || exit 1

	# Generate admin password if not set
	if [ -z "$admin_password" ]; then
		admin_password=$(gen_password)
		uci_set main.admin_password "$admin_password"
		log_info "Generated admin password: $admin_password"
	fi

	# Create container
	if ! lxc_exists; then
		lxc_create_rootfs || exit 1
	fi

	# Install packages
	install_container_packages || exit 1

	# Download Nextcloud
	if [ ! -f "$LXC_ROOTFS/var/www/nextcloud/occ" ]; then
		install_nextcloud || exit 1
	fi

	# Setup services
	setup_database || exit 1
	setup_redis || exit 1

	# Create startup script
	create_startup_script

	# Create LXC config
	lxc_create_config || exit 1

	# Enable service
	uci_set main.enabled '1'
	/etc/init.d/nextcloud enable 2>/dev/null || true

	log_info ""
	log_info "Installation complete!"
	log_info ""
	log_info "Start with: /etc/init.d/nextcloud start"
	log_info "Web interface: http://<router-ip>:$http_port"
	log_info ""
	log_info "After first start, run Nextcloud setup:"
	log_info "  nextcloudctl occ maintenance:install \\"
	log_info "    --database mysql --database-name $db_name \\"
	log_info "    --database-user $db_user --database-pass '$db_password' \\"
	log_info "    --admin-user $admin_user --admin-pass '$admin_password'"
	log_info ""
}

cmd_uninstall() {
	require_root

	log_info "Uninstalling Nextcloud Platform..."

	# Stop service
	/etc/init.d/nextcloud stop 2>/dev/null || true
	/etc/init.d/nextcloud disable 2>/dev/null || true

	lxc_stop

	# Remove container (keep data)
	if [ -d "$LXC_PATH/$LXC_NAME" ]; then
		rm -rf "$LXC_PATH/$LXC_NAME"
		log_info "Container removed"
	fi

	uci_set main.enabled '0'

	log_info "Nextcloud Platform uninstalled"
	log_info "Data preserved in: $(uci_get main.data_path)"
}

cmd_update() {
	require_root
	load_config

	if ! lxc_exists; then
		log_error "Container not installed. Run: nextcloudctl install"
		return 1
	fi

	log_info "Updating Nextcloud..."

	# Enable maintenance mode
	if lxc_running; then
		lxc_occ maintenance:mode --on
	fi

	# Download new Nextcloud
	install_nextcloud || exit 1

	# Run upgrade
	if lxc_running; then
		lxc_occ upgrade
		lxc_occ maintenance:mode --off
	fi

	log_info "Update complete"
}

cmd_status() {
	load_config

	local enabled="$(uci_get main.enabled)"
	local running="false"
	local installed="false"
	local version=""
	local user_count=0
	local disk_used="0"

	if lxc_exists; then
		installed="true"
	fi

	if lxc_running; then
		running="true"

		# Get Nextcloud version
		version=$(lxc_occ -V 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' || echo "")

		# Get user count
		user_count=$(lxc_occ user:list --output=json 2>/dev/null | jsonfilter -e '@[*]' 2>/dev/null | wc -l || echo 0)
	fi

	# Get disk usage
	if [ -d "$data_path/data" ]; then
		disk_used=$(du -sh "$data_path/data" 2>/dev/null | awk '{print $1}' || echo "0")
	fi

	# Get LAN IP
	local lan_ip
	lan_ip=$(uci -q get network.lan.ipaddr || echo "192.168.1.1")

	cat << EOF
{
  "enabled": $([ "$enabled" = "1" ] && echo "true" || echo "false"),
  "running": $running,
  "installed": $installed,
  "version": "$version",
  "http_port": $http_port,
  "data_path": "$data_path",
  "memory_limit": "$memory_limit",
  "domain": "$domain",
  "user_count": $user_count,
  "disk_used": "$disk_used",
  "http_url": "http://${lan_ip}:${http_port}",
  "ssl_enabled": $([ "$ssl_enabled" = "1" ] && echo "true" || echo "false"),
  "ssl_domain": "$ssl_domain",
  "redis_enabled": $([ "$redis_enabled" = "1" ] && echo "true" || echo "false"),
  "container_name": "$LXC_NAME"
}
EOF
}

cmd_logs() {
	load_config

	if lxc_running; then
		if [ "$1" = "-f" ]; then
			lxc_exec tail -f /var/log/nginx/error.log /var/www/nextcloud/data/nextcloud.log 2>/dev/null
		else
			echo "=== Nginx Error Log ==="
			lxc_exec tail -50 /var/log/nginx/error.log 2>/dev/null || echo "No logs"
			echo ""
			echo "=== Nextcloud Log ==="
			lxc_exec tail -50 /var/www/nextcloud/data/nextcloud.log 2>/dev/null || echo "No logs"
		fi
	else
		echo "Container not running"
	fi
}

cmd_shell() {
	require_root

	if ! lxc_running; then
		log_error "Container not running"
		exit 1
	fi

	lxc-attach -n "$LXC_NAME" -- /bin/bash
}

cmd_occ() {
	require_root
	lxc_occ "$@"
}

cmd_backup() {
	require_root
	load_config

	local name="${1:-$(date +%Y%m%d-%H%M%S)}"
	local backup_dir="$BACKUP_PATH"

	ensure_dir "$backup_dir"

	log_info "Creating backup: $name"

	# Enable maintenance mode if running
	local was_running=0
	if lxc_running; then
		was_running=1
		lxc_occ maintenance:mode --on
	fi

	# Dump database
	log_info "Dumping database..."
	if lxc_running; then
		lxc_exec mysqldump -u "$db_user" -p"$db_password" "$db_name" > "$backup_dir/$name-db.sql" || {
			log_error "Database dump failed"
			[ $was_running -eq 1 ] && lxc_occ maintenance:mode --off
			return 1
		}
	fi

	# Backup data and config
	log_info "Backing up data..."
	tar -czf "$backup_dir/$name-data.tar.gz" \
		-C "$data_path" data config 2>/dev/null || {
		log_error "Data backup failed"
		[ $was_running -eq 1 ] && lxc_occ maintenance:mode --off
		return 1
	}

	# Disable maintenance mode
	if [ $was_running -eq 1 ]; then
		lxc_occ maintenance:mode --off
	fi

	local size=$(ls -lh "$backup_dir/$name-data.tar.gz" 2>/dev/null | awk '{print $5}')
	log_info "Backup created: $backup_dir/$name-* ($size)"

	# Cleanup old backups
	if [ "$backup_keep" -gt 0 ]; then
		ls -t "$backup_dir"/*-db.sql 2>/dev/null | tail -n +$((backup_keep + 1)) | while read f; do
			local base=$(basename "$f" -db.sql)
			rm -f "$backup_dir/$base-db.sql" "$backup_dir/$base-data.tar.gz"
			log_info "Removed old backup: $base"
		done
	fi

	echo "$name"
}

cmd_restore() {
	require_root
	load_config

	local name="$1"

	if [ -z "$name" ]; then
		log_error "Usage: nextcloudctl restore <backup-name>"
		log_error "Available backups:"
		cmd_list_backups
		return 1
	fi

	local backup_dir="$BACKUP_PATH"

	if [ ! -f "$backup_dir/$name-db.sql" ]; then
		log_error "Backup not found: $name"
		return 1
	fi

	log_info "Restoring from backup: $name"

	# Enable maintenance mode
	local was_running=0
	if lxc_running; then
		was_running=1
		lxc_occ maintenance:mode --on
	fi

	# Restore database
	log_info "Restoring database..."
	if lxc_running; then
		lxc_exec mysql -u "$db_user" -p"$db_password" "$db_name" < "$backup_dir/$name-db.sql" || {
			log_error "Database restore failed"
			return 1
		}
	fi

	# Restore data
	log_info "Restoring data..."
	tar -xzf "$backup_dir/$name-data.tar.gz" -C "$data_path" || {
		log_error "Data restore failed"
		return 1
	}

	# Fix permissions
	if lxc_running; then
		lxc_exec chown -R www-data:www-data /var/www/nextcloud
		lxc_occ maintenance:mode --off
	fi

	log_info "Restore complete"
}

cmd_list_backups() {
	load_config

	local backup_dir="$BACKUP_PATH"

	if [ ! -d "$backup_dir" ]; then
		echo "No backups found"
		return
	fi

	echo "Available backups:"
	ls -1 "$backup_dir"/*-db.sql 2>/dev/null | while read f; do
		local name=$(basename "$f" -db.sql)
		local data_file="$backup_dir/$name-data.tar.gz"
		local size="N/A"
		local date="N/A"

		if [ -f "$data_file" ]; then
			size=$(ls -lh "$data_file" | awk '{print $5}')
		fi
		date=$(stat -c '%y' "$f" 2>/dev/null | cut -d. -f1)

		echo "  $name  ($size)  $date"
	done
}

cmd_ssl_enable() {
	require_root
	load_config

	local domain="$1"

	if [ -z "$domain" ]; then
		log_error "Usage: nextcloudctl ssl-enable <domain>"
		return 1
	fi

	log_info "Enabling SSL for $domain via HAProxy + WAF..."

	# Check if HAProxy is available
	if [ ! -x /usr/sbin/haproxyctl ]; then
		log_error "HAProxy not installed. Install secubox-app-haproxy first."
		return 1
	fi

	# Use haproxyctl vhost add - routes through mitmproxy_inspector by default
	log_info "Adding vhost via haproxyctl..."
	if ! /usr/sbin/haproxyctl vhost add "$domain" --acme; then
		log_error "Failed to add HAProxy vhost"
		return 1
	fi

	# Add route to mitmproxy for WAF inspection
	# This ensures traffic is inspected before reaching Nextcloud
	# NOTE: Nextcloud uses host network (lxc.net.0.type=none) so it listens on 192.168.255.1
	# mitmproxy runs in its own container, so it can't reach 127.0.0.1 on the host
	local routes_file="/srv/mitmproxy/haproxy-routes.json"
	local routes_file_in="/srv/mitmproxy-in/haproxy-routes.json"

	# Get the host's LAN IP (where Nextcloud is accessible from mitmproxy container)
	local host_ip
	host_ip=$(uci -q get network.lan.ipaddr || echo "192.168.255.1")

	if [ -f "$routes_file" ]; then
		log_info "Adding mitmproxy route for WAF inspection..."
		# Use jsonfilter to check if route exists, then add if not
		local existing
		existing=$(jsonfilter -i "$routes_file" -e "@[\"$domain\"]" 2>/dev/null || echo "")

		if [ -z "$existing" ]; then
			# Add route: domain -> [host_ip, port]
			local tmpfile="/tmp/routes-$$.json"
			# Read existing routes and add new one
			if command -v python3 >/dev/null 2>&1; then
				python3 -c "
import json
with open('$routes_file', 'r') as f:
    routes = json.load(f)
routes['$domain'] = ['$host_ip', $http_port]
with open('$tmpfile', 'w') as f:
    json.dump(routes, f, indent=2)
"
				mv "$tmpfile" "$routes_file"
				# Also update the in-container copy
				[ -f "$routes_file_in" ] && cp "$routes_file" "$routes_file_in"
				log_info "Added WAF route: $domain -> $host_ip:$http_port"
			else
				log_info "Python3 not available, manual route config needed"
				log_info "Add to $routes_file: \"$domain\": [\"$host_ip\", $http_port]"
			fi
		else
			log_info "WAF route already exists for $domain"
		fi
	else
		log_info "mitmproxy routes file not found, creating..."
		mkdir -p "$(dirname "$routes_file")"
		echo "{\"$domain\": [\"$host_ip\", $http_port]}" > "$routes_file"
		[ -d "$(dirname "$routes_file_in")" ] && cp "$routes_file" "$routes_file_in"
	fi

	# Update Nextcloud UCI config
	uci_set ssl.enabled '1'
	uci_set ssl.domain "$domain"

	# Restart mitmproxy to load new routes
	if [ -x /etc/init.d/mitmproxy ]; then
		log_info "Reloading mitmproxy..."
		/etc/init.d/mitmproxy restart 2>/dev/null || true
	fi

	# Regenerate HAProxy config and reload
	log_info "Regenerating HAProxy config..."
	/usr/sbin/haproxyctl generate 2>/dev/null || true
	/etc/init.d/haproxy reload 2>/dev/null || true

	# Add trusted domain in Nextcloud
	if lxc_running; then
		log_info "Configuring Nextcloud trusted domains..."
		lxc_occ config:system:set trusted_domains 1 --value="$domain"
		lxc_occ config:system:set overwriteprotocol --value="https"
		lxc_occ config:system:set overwrite.cli.url --value="https://$domain"
	fi

	log_info ""
	log_info "SSL enabled for $domain (with WAF inspection)"
	log_info "Access Nextcloud at: https://$domain"
	log_info ""
	log_info "Traffic flow: Client -> HAProxy -> mitmproxy (WAF) -> Nextcloud"
}

cmd_ssl_disable() {
	require_root
	load_config

	log_info "Disabling SSL..."

	# Remove HAProxy config (simplified - just disable)
	uci_set ssl.enabled '0'

	log_info "SSL disabled"
}

cmd_setup_mail() {
	require_root
	load_config

	local smtp_host="${1:-}"
	local smtp_port="${2:-587}"
	local smtp_user="${3:-}"
	local smtp_pass="${4:-}"
	local smtp_from="${5:-}"

	if [ -z "$smtp_host" ]; then
		cat << 'EOF'
Usage: nextcloudctl setup-mail <smtp_host> [port] [user] [password] [from_address]

Examples:
  # Gmail SMTP
  nextcloudctl setup-mail smtp.gmail.com 587 user@gmail.com "app-password" user@gmail.com

  # Local mailserver (secubox-app-mailserver)
  nextcloudctl setup-mail 127.0.0.1 25

  # Mailcow/Mailinabox
  nextcloudctl setup-mail mail.example.com 587 noreply@example.com "password" noreply@example.com

Note: For Gmail, use an App Password (not your regular password).
EOF
		return 1
	fi

	if ! lxc_running; then
		log_error "Nextcloud container not running"
		return 1
	fi

	log_info "Configuring SMTP mail settings..."

	# Set mail mode to SMTP
	lxc_occ config:system:set mail_smtpmode --value="smtp"
	lxc_occ config:system:set mail_smtphost --value="$smtp_host"
	lxc_occ config:system:set mail_smtpport --value="$smtp_port"

	# Enable TLS for standard ports
	if [ "$smtp_port" = "587" ] || [ "$smtp_port" = "465" ]; then
		lxc_occ config:system:set mail_smtpsecure --value="tls"
	fi

	# Set authentication if provided
	if [ -n "$smtp_user" ]; then
		lxc_occ config:system:set mail_smtpauth --value="1"
		lxc_occ config:system:set mail_smtpauthtype --value="LOGIN"
		lxc_occ config:system:set mail_smtpname --value="$smtp_user"
	fi

	if [ -n "$smtp_pass" ]; then
		lxc_occ config:system:set mail_smtppassword --value="$smtp_pass"
	fi

	# Set from address
	if [ -n "$smtp_from" ]; then
		lxc_occ config:system:set mail_from_address --value="${smtp_from%@*}"
		lxc_occ config:system:set mail_domain --value="${smtp_from#*@}"
	elif [ -n "$smtp_user" ]; then
		lxc_occ config:system:set mail_from_address --value="${smtp_user%@*}"
		lxc_occ config:system:set mail_domain --value="${smtp_user#*@}"
	fi

	log_info "SMTP configured: $smtp_host:$smtp_port"
	log_info ""
	log_info "Test with: nextcloudctl occ notification:test-push <username>"
}

cmd_setup_backup_cron() {
	require_root
	load_config

	local schedule="$(uci_get backup.schedule)" || schedule="daily"
	local cron_file="/etc/cron.d/nextcloud-backup"

	log_info "Setting up scheduled backups: $schedule"

	case "$schedule" in
		hourly)
			echo "0 * * * * root /usr/sbin/nextcloudctl backup auto-\$(date +\\%Y\\%m\\%d-\\%H) >/dev/null 2>&1" > "$cron_file"
			;;
		daily)
			echo "0 3 * * * root /usr/sbin/nextcloudctl backup auto-\$(date +\\%Y\\%m\\%d) >/dev/null 2>&1" > "$cron_file"
			;;
		weekly)
			echo "0 3 * * 0 root /usr/sbin/nextcloudctl backup auto-\$(date +\\%Y\\%m\\%d) >/dev/null 2>&1" > "$cron_file"
			;;
		disabled|none)
			rm -f "$cron_file"
			log_info "Scheduled backups disabled"
			return 0
			;;
		*)
			log_error "Unknown schedule: $schedule (use: hourly, daily, weekly, disabled)"
			return 1
			;;
	esac

	chmod 644 "$cron_file"

	# Restart cron if running
	/etc/init.d/cron restart 2>/dev/null || true

	log_info "Backup cron job created: $cron_file"
	log_info "Backups will run $schedule and keep last $(uci_get backup.keep) copies"
}

cmd_connections() {
	load_config

	local lan_ip
	lan_ip=$(uci -q get network.lan.ipaddr || echo "192.168.1.1")

	local base_url="http://${lan_ip}:${http_port}"
	if [ "$ssl_enabled" = "1" ] && [ -n "$ssl_domain" ]; then
		base_url="https://${ssl_domain}"
	fi

	cat << EOF
Nextcloud Connection URLs
=========================

Web Interface:
  $base_url

CalDAV (Calendar):
  $base_url/remote.php/dav/calendars/<username>/

CardDAV (Contacts):
  $base_url/remote.php/dav/addressbooks/users/<username>/contacts/

WebDAV (Files):
  $base_url/remote.php/dav/files/<username>/

iOS/macOS Calendar & Contacts:
  Server: $base_url
  Path: /remote.php/dav

Android (DAVx5):
  Base URL: $base_url/remote.php/dav
  Login: Your Nextcloud username and password

Thunderbird (TbSync + Provider for CalDAV & CardDAV):
  Server URL: $base_url

Desktop Sync Client:
  Download from: https://nextcloud.com/install/#install-clients
  Server: $base_url

Mobile Apps:
  iOS: https://apps.apple.com/app/nextcloud/id1125420102
  Android: https://play.google.com/store/apps/details?id=com.nextcloud.client

EOF
}

cmd_service_run() {
	require_root
	load_config

	lxc_check_prereqs || exit 1
	lxc_run
}

cmd_service_stop() {
	require_root
	lxc_stop
}

# Main
case "${1:-}" in
	install)      shift; cmd_install "$@" ;;
	uninstall)    shift; cmd_uninstall "$@" ;;
	update)       shift; cmd_update "$@" ;;
	start)        /etc/init.d/nextcloud start ;;
	stop)         /etc/init.d/nextcloud stop ;;
	restart)      /etc/init.d/nextcloud restart ;;
	status)       shift; cmd_status "$@" ;;
	logs)         shift; cmd_logs "$@" ;;
	shell)        shift; cmd_shell "$@" ;;
	occ)          shift; cmd_occ "$@" ;;
	backup)       shift; cmd_backup "$@" ;;
	restore)      shift; cmd_restore "$@" ;;
	list-backups) shift; cmd_list_backups "$@" ;;
	ssl-enable)   shift; cmd_ssl_enable "$@" ;;
	ssl-disable)  shift; cmd_ssl_disable "$@" ;;
	setup-mail)   shift; cmd_setup_mail "$@" ;;
	setup-backup-cron) shift; cmd_setup_backup_cron "$@" ;;
	connections)  shift; cmd_connections "$@" ;;
	service-run)  shift; cmd_service_run "$@" ;;
	service-stop) shift; cmd_service_stop "$@" ;;
	*)            usage ;;
esac