#!/bin/sh
set -e

. /usr/share/debconf/confmodule

CONDUIT_CONFIG_PATH=/etc/matrix-conduit
CONDUIT_CONFIG_FILE="${CONDUIT_CONFIG_PATH}/conduit.toml"
CONDUIT_DATABASE_PATH=/var/lib/matrix-conduit

case "$1" in
  configure)
    # Create the `_matrix-conduit` user if it does not exist yet.
    if ! getent passwd _matrix-conduit > /dev/null ; then
      echo 'Adding system user for the Conduit Matrix homeserver' 1>&2
      adduser --system --group --quiet \
        --home $CONDUIT_DATABASE_PATH \
        --disabled-login \
        --force-badname \
        _matrix-conduit
    fi

    # Create the database path if it does not exist yet.
    if [ ! -d "$CONDUIT_DATABASE_PATH" ]; then
      mkdir -p "$CONDUIT_DATABASE_PATH"
      chown _matrix-conduit "$CONDUIT_DATABASE_PATH"
    fi

    if [ ! -e "$CONDUIT_CONFIG_FILE" ]; then
      # Write the debconf values in the config.
      db_get matrix-conduit/hostname
      CONDUIT_SERVER_NAME="$RET"
      db_get matrix-conduit/address
      CONDUIT_ADDRESS="$RET"
      db_get matrix-conduit/port
      CONDUIT_PORT="$RET"
      mkdir -p "$CONDUIT_CONFIG_PATH"
      cat > "$CONDUIT_CONFIG_FILE" << EOF
[global]
# The server_name is the name of this server. It is used as a suffix for user
# and room ids. Examples: matrix.org, conduit.rs
# The Conduit server needs to be reachable at https://your.server.name/ on port
# 443 (client-server) and 8448 (federation) OR you can create /.well-known
# files to redirect requests. See
# https://matrix.org/docs/spec/client_server/latest#get-well-known-matrix-client
# and https://matrix.org/docs/spec/server_server/r0.1.4#get-well-known-matrix-server
# for more information.
server_name = "${CONDUIT_SERVER_NAME}"

# This is the only directory where Conduit will save its data.
database_path = "${CONDUIT_DATABASE_PATH}"

# The address Conduit will be listening on.
# By default the server listens on address 0.0.0.0. Change this to 127.0.0.1 to
# only listen on the localhost when using a reverse proxy.
address = "${CONDUIT_ADDRESS}"

# The port Conduit will be running on. You need to set up a reverse proxy in
# your web server (e.g. apache or nginx), so all requests to /_matrix on port
# 443 and 8448 will be forwarded to the Conduit instance running on this port.
port = ${CONDUIT_PORT}

# Max size for uploads
max_request_size = 20_000_000 # in bytes

# Disable registration. No new users will be able to register on this server.
#allow_registration = false

# Disable encryption, so no new encrypted rooms can be created.
# Note: Existing rooms will continue to work.
#allow_encryption = false
#allow_federation = false

# Enable jaeger to support monitoring and troubleshooting through jaeger.
#allow_jaeger = false

#cache_capacity = 1073741824 # in bytes, 1024 * 1024 * 1024
#max_concurrent_requests = 4 # How many requests Conduit sends to other servers at the same time
#log = "info,state_res=warn,rocket=off,_=off,sled=off"
#workers = 4 # default: cpu core count * 2
EOF
    fi
    ;;
esac

#DEBHELPER#