#!/usr/bin/env bash
# Installs or rebuilds the SQLInsight Pro forum (Discourse) with the official discourse_docker launcher.
#
# Normally run by .forgejo/workflows/deploy-forum.yml (in a helper container with /var/discourse and docker.sock
# from the host). By hand, as root on the server, with the values render.py needs exported:
#   sudo -E deploy/forum/install.sh
# Needs 4 GB memory (2 GB minimum), 20 GB disk, 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 -E)." >&2
  exit 1
fi

command -v docker >/dev/null || { echo "Docker mangler." >&2; exit 1; }

# Check the values before touching anything on the server.
rendered="$(mktemp)"
trap 'rm -f "$rendered"' EXIT
python3 "$HERE/render.py" "$HERE/app.yml" "$rendered"

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

mkdir -p "$TARGET/containers"
install -m 600 "$rendered" "$TARGET/containers/app.yml"

cd "$TARGET"
# Skip the interactive prerequisite checks (they cannot be answered from a workflow).
./launcher rebuild app --skip-prereqs

host="${FORUM_HOSTNAME:-forum.seosoft.dk}"
cat <<NEXT

Discourse kører på ${FORUM_BIND}:${FORUM_PORT:-8082}. Første gang:
  1. Peg reverse proxyen for $host på http://${FORUM_BIND}:${FORUM_PORT:-8082} (med X-Forwarded-Proto: https og WebSockets).
  2. Åbn https://$host og opret administratoren med adressen i FORUM_ADMIN_EMAIL.
  3. Lav en API-nøgle til opsætningen:
       docker exec app su discourse -c 'cd /var/www/discourse && RAILS_ENV=production bundle exec rake api_key:create_master[forum-setup]'
  4. Opsæt kategorier, sprog og velkomstemne (kan køres igen):
       DISCOURSE_URL=https://$host DISCOURSE_API_KEY=<nøglen> CONTACT_EMAIL=<supportadresse> python3 deploy/forum/configure.py
  5. Slet API-nøglen igen under Admin → API.
NEXT