#!/usr/bin/env bash
# Chinaski CMS - one-line bootstrap installer
#
# Online install (Debian/Ubuntu, uses apt for pre-compiled Perl packages):
#   curl -fsSL https://www.chinaski.net/install.sh | sudo bash -s -- <instance>
#   Example: curl -fsSL https://www.chinaski.net/install.sh | sudo bash -s -- 1
#
# Offline-compatible install (any Linux, bundles vendored CPAN deps):
#   curl -fsSL https://www.chinaski.net/install.sh | sudo bash -s -- --offline [OPTIONS]
#   Example: curl -fsSL https://www.chinaski.net/install.sh | sudo bash -s -- --offline --prefix /srv/chinaski
#
# Online options (forwarded to deploy/install.sh):
#   <instance>   Required. Alphanumeric name for this install (e.g. 1, prod)
#   --port PORT  Daemon listen port (default: 3000+N for numeric N, else 3001)
#   --dir  DIR   Install directory  (default: /var/www/chinaski<INSTANCE>)
#
# Offline options (forwarded to install/install.sh):
#   --prefix DIR   Install root directory (default: current working directory)
#   --no-service   Skip systemd unit installation
#   --site-url URL Seed the site_url setting in the database
#
# The --offline bundle is ~50 MB and includes vendored CPAN source tarballs
# so Perl modules can be compiled without internet access. It requires a C
# compiler, make, and image libraries (libjpeg, libpng, libgif). On Debian:
#   apt-get install -y make gcc libjpeg-dev libpng-dev libgif-dev

set -euo pipefail

BASE_URL="https://www.chinaski.net/dist"
OFFLINE=0
PASS_ARGS=()

while [[ $# -gt 0 ]]; do
    case "$1" in
        --offline) OFFLINE=1; shift ;;
        *)         PASS_ARGS+=("$1"); shift ;;
    esac
done

if [[ "$(id -u)" -ne 0 ]]; then
    echo "error: Chinaski installer must be run as root" >&2
    echo "       curl -fsSL https://www.chinaski.net/install.sh | sudo bash -s -- ..." >&2
    exit 1
fi

TMP="$(mktemp -d)"
trap 'rm -rf "$TMP"' EXIT

if [[ "$OFFLINE" -eq 1 ]]; then
    echo "==> Chinaski: downloading offline bundle (~50 MB)..."
    curl -fsSL --progress-bar "$BASE_URL/chinaski-latest.tar.gz" \
        | tar -xz -C "$TMP" --strip-components=1
    echo "==> Running offline installer..."
    exec bash "$TMP/install.sh" "${PASS_ARGS[@]}"
else
    if [[ "${#PASS_ARGS[@]}" -eq 0 ]]; then
        echo "error: instance name required" >&2
        echo "       curl -fsSL https://www.chinaski.net/install.sh | sudo bash -s -- <instance>" >&2
        echo "       e.g. sudo bash -s -- 1" >&2
        exit 1
    fi
    echo "==> Chinaski: downloading source archive..."
    curl -fsSL --progress-bar "$BASE_URL/chinaski-latest-src.tar.gz" \
        | tar -xz -C "$TMP" --strip-components=1
    echo "==> Running installer..."
    exec bash "$TMP/deploy/install.sh" "${PASS_ARGS[@]}" --src "$TMP"
fi