# ~/nixconfig/modules/nextcloud-setup.nix
{ config, pkgs, lib, ... }:

let
  nextcloudExternalDomain = "cloud.death916.xyz"; # Domain used by NPM
  adminPassFilePath = "/etc/nixos/secrets/nextcloud_admin_password";
  dbPassFilePath = "/etc/nixos/secrets/nextcloud_db_password";
  nextcloudDataPath = "/storage/nextcloud-data";
  nginxProxyManagerTailscaleIP = "100.117.212.36"; # IP of your NPM

  # Port Nextcloud's internal webserver listens on (default 80 for HTTP).
  # NPM forwards to <homelab_tailscale_ip>:<internalNextcloudHttpPort>
  # Direct Tailscale clients will connect to <homelab_tailscale_ip_or_magicdns>:<internalNextcloudHttpPort>
  internalNextcloudHttpPort = 80;

  # --- For Direct Tailscale Access to homelab's Nextcloud ---
  homelabTailscaleIP = "100.65.36.116"; # REPLACE with homelab's actual Tailscale IP
  homelabMagicDNSName = "homelab"; # Or homelab.your-tailnet-name.ts.net if you use the full name
in
{
  # --- PostgreSQL & Redis setup ... (as before) ---
  services.postgresql = {
    enable = true; package = pkgs.postgresql_14; ensureDatabases = [ "nextcloud" ];
    ensureUsers = [ { name = "nextcloud"; } ];
  };
  services.redis.servers.nextcloud = {
    enable = true; user = "nextcloud"; unixSocket = "/run/redis-nextcloud/redis.sock";
    port = 0;
  };
  systemd.tmpfiles.rules = [ "d /run/redis-nextcloud 0750 nextcloud nextcloud - -" ];

  # --- Nextcloud Service Configuration ---
  services.nextcloud = {
    enable = true;
    package = pkgs.nextcloud31; # Verify this version
    
    hostName = nextcloudExternalDomain; 
    https = false; 
    datadir = nextcloudDataPath;
    maxUploadSize = "2G";

    config = {
      dbtype = "pgsql"; dbuser = "nextcloud"; dbhost = "/run/postgresql";
      dbname = "nextcloud"; dbpassFile = dbPassFilePath;
      adminuser = "death916"; adminpassFile = adminPassFilePath;
    };

    settings = {
      trusted_domains = [
        nextcloudExternalDomain
        homelabTailscaleIP
        homelabMagicDNSName
      ];
      trusted_proxies = [ nginxProxyManagerTailscaleIP ]; 
      overwriteprotocol = "https"; 
      overwritehost = nextcloudExternalDomain;
      "overwrite.cli.url" = "https://${nextcloudExternalDomain}";
      overwritecondaddr = "^${nginxProxyManagerTailscaleIP}$";
      "memcache.local" = "\\OC\\Memcache\\APCu";
      "memcache.distributed" = "\\OC\\Memcache\\Redis";
      "memcache.locking" = "\\OC\\Memcache\\Redis";
      filelocking.enabled = true;
      redis = { host = "/run/redis-nextcloud/redis.sock"; port = 0; };
    };
    
    caching.redis = true; 
    phpOptions = lib.mkForce { "memory_limit" = "2G"; };
  };

  # --- MODIFICATION: Attempt to "disable" setup/update services from auto-starting ---
  # This removes their default "WantedBy" directives, which is how services are
  # typically enabled to start at boot or with general system targets.
  systemd.services."nextcloud-setup.service" = {
    # This service unit is generated by the services.nextcloud module.
    # We are overriding its 'wantedBy' to an empty list.
    # This should prevent it from being linked into targets like multi-user.target.
    wantedBy = lib.mkForce [ ];
    # We are NOT changing what command it runs (ExecStart).
  };

  systemd.services."nextcloud-update-db.service" = {
    # Similar to above, for the database update service.
    wantedBy = lib.mkForce [ ];
    # We are NOT changing what command it runs (ExecStart).
  };
  # --- END MODIFICATION ---

  users.users.nextcloud = { isSystemUser = true; group = "nextcloud"; };
  users.groups.nextcloud = {}; 

  networking.firewall.allowedTCPPorts = [ internalNextcloudHttpPort ];
}