#!/bin/bash

# Generate DB password
DB_PASSWORD=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 32)

# Replace the default password in docker-compose.yml
sed -i "s/POSTGRES_PASSWORD: itsasecret/POSTGRES_PASSWORD: $DB_PASSWORD/" docker-compose.yml

# Prompt for domain input
read -p "Enter your domain (e.g., example.com): " DOMAIN
if [[ -z "$DOMAIN" ]]; then
  echo "Domain cannot be empty. Exiting."
  exit 1
fi

# Generate private keys
echo "Generating private keys..."
docker run --rm --entrypoint="/usr/bin/generate-keys" \
  -v $(pwd)/config/dendrite:/mnt \
  matrixdotorg/dendrite-monolith:latest \
  -private-key /mnt/matrix_key.pem

# Generate configuration
echo "Generating configuration with domain: $DOMAIN..."
docker run --rm --entrypoint="/bin/sh" \
  -v $(pwd)/config/dendrite:/mnt \
  matrixdotorg/dendrite-monolith:latest \
  -c "/usr/bin/generate-config \
    -dir /var/dendrite/ \
    -db postgres://dendrite:$DB_PASSWORD@postgres/dendrite?sslmode=disable \
    -server $DOMAIN > /mnt/dendrite.yaml"

# Generate and display the registration shared secret
SHARED_SECRET=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 50)
echo
echo "Registration shared secret: $SHARED_SECRET"
echo "Database URI: postgres://dendrite:$DB_PASSWORD@postgres/dendrite?sslmode=disable"
echo
echo "Make sure to save this information securely!"