#!/usr/bin/env bash
# Installs the SQLInsight Pro forum (Discourse) on a fresh Linux server with the official discourse_docker launcher.
# Run as root on the forum server, from a checkout of this repository, after filling in deploy/forum/app.yml:
#   sudo deploy/forum/install.sh
# Needs: DNS for the forum's host name pointing here, ports 80 and 443 free, 2 GB memory (4 GB recommended) and a mail server.
set -euo pipefail

HERE="$(cd "$(dirname "$0")" && pwd)"
TARGET=/var/discourse

if [[ $EUID -ne 0 ]]; then
  echo "Kør som root (sudo)." >&2
  exit 1
fi

# Refuse to install with the example values still in place: Discourse is useless without a working mail server.
if grep -nE 'example\.com|"CHANGE"' "$HERE/app.yml" | grep -vE '^[0-9]+:\s*#'; then
  echo "Udfyld værdierne markeret CHANGE i $HERE/app.yml først (linjerne ovenfor)." >&2
  exit 1
fi

if ! command -v docker >/dev/null; then
  echo "Installerer Docker ..."
  curl -fsSL https://get.docker.com | sh
fi

if [[ ! -d $TARGET/.git ]]; then
  git clone --depth 1 https://github.com/discourse/discourse_docker.git "$TARGET"
fi

install -m 600 "$HERE/app.yml" "$TARGET/containers/app.yml"
cd "$TARGET"
./launcher rebuild app

host=$(sed -n 's/^\s*DISCOURSE_HOSTNAME:\s*//p' "$HERE/app.yml" | tr -d '"' | head -1)
cat <<NEXT

Discourse kører. Næste skridt:
  1. Åbn https://$host og opret den første administrator med en af adresserne i DISCOURSE_DEVELOPER_EMAILS.
  2. Lav en API-nøgle til opsætningen:
       cd $TARGET && ./launcher enter app
       cd /var/www/discourse && su discourse -c 'RAILS_ENV=production bundle exec rake api_key:create_master[forum-setup]'
  3. Opsæt kategorier, sprog og velkomstemne (kan køres igen):
       DISCOURSE_URL=https://$host DISCOURSE_API_KEY=<nøglen> CONTACT_EMAIL=<supportadresse> python3 $HERE/configure.py
  4. Slet API-nøglen igen under Admin → API, når opsætningen er færdig.
NEXT