{ config, lib, pkgs, ... }:

with lib;
let
  cfg = config.modules.services.element-web;
in
{
  options.modules.services.element-web = {
    enable = mkEnableOption "element-web";
    package = mkOption { type = types.package; default = pkgs.element-web; };
    hostName = mkOption { type = types.str; default = config.networking.hostName; };
    matrix = {
      baseUrl = mkOption { type = types.str; default = "https://matrix.${config.networking.hostName}"; };
      serverName = mkOption { type = types.str; default = config.networking.hostName; };
    };
    tls.acmeHost = mkOption { type = types.str; default = cfg.hostName; };
    jitsi.domain = mkOption { type = types.str; default = "jitsi.${cfg.hostName}"; };
  };

  config = mkIf cfg.enable {
    services.nginx.virtualHosts.${cfg.hostName} = {
      useACMEHost = cfg.tls.acmeHost;
      forceSSL = true;

      root = cfg.package.override {
        conf = {
          default_server_config = {
            "m.homeserver" = {
              "base_url" = cfg.matrix.baseUrl;
              "server_name" = cfg.matrix.serverName;
            };
            "m.identity_server" = {
              "base_url" = "https://vector.im";
            };
          };
          showLabsSettings = true;
        } // optionalAttrs (cfg.jitsi.domain != null) {
          jitsi.preferredDomain = cfg.jitsi.domain;
        };
      };

      locations."~ \\.(js|css|woff|woff2?|png|jpe?g|svg)$".extraConfig = ''
        add_header Cache-Control "public, max-age=14400, must-revalidate";
      '';
    };
  };
}