#!/usr/bin/env sh
set -eu

# Generate a minimal nginx virtual host for each missing domain config.

ROOT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)"
CONF_DIR="${CONF_DIR:-./conf/conf.d}"

cd "$ROOT_DIR"

if [ "$#" -eq 0 ]; then
    echo "Usage: sh scripts/ensure-domain-conf.sh <domain> [domain...]" >&2
    exit 1
fi

ensure_domain_conf() {
    domain="$1"
    conf_file="$CONF_DIR/$domain.conf"

    if [ -f "$conf_file" ]; then
        echo "Skipping existing nginx config: $conf_file"
        return
    fi

    echo "Creating nginx config template: $conf_file"
    mkdir -p "$CONF_DIR"
    cat > "$conf_file" <<EOF
server {
    listen 80;
    listen 443 ssl;
    server_name $domain;

    ssl_certificate /etc/letsencrypt/live/$domain/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/$domain/privkey.pem;

    root /var/www/$domain;
    index index.html;

    location ^~ /.well-known/acme-challenge/ {
        root /var/www;
        default_type text/plain;
        try_files \$uri =404;
    }

    location / {
        if (\$scheme = http) {
            return 301 https://\$host\$request_uri;
        }

        try_files \$uri \$uri/ /index.html;
    }
}
EOF
}

for domain in "$@"; do
    ensure_domain_conf "$domain"
done