# ---- TERRA ----
{ config, pkgs, lib, inputs, ... }:

let
  unstable = import inputs.nixpkgs-unstable {
    inherit (pkgs.stdenv.hostPlatform) system;
    config = pkgs.config;
  };
in
{
  imports = [
    ./hardware-configuration.nix
    ./disk-config.nix
    ./secrets.nix
    ../../common.nix
    ../../services/vpn/tailscale.nix
    ../../services/desktop/desktop-hyprland.nix
    ../../services/desktop/desktop-apps.nix
  ];

  networking.hostName = "terra";

  services.flatpak = {
    enable = true;
    remotes = [{ name = "flathub"; location = "https://dl.flathub.org/repo/flathub.flatpakrepo"; }];
    packages = [
      { appId = "com.github.tchx84.Flatseal"; origin = "flathub"; }
      { appId = "com.blitzfc.qbz";        origin = "flathub"; }
      { appId = "com.discordapp.Discord";  origin = "flathub"; }
      { appId = "org.telegram.desktop";   origin = "flathub"; }
      { appId = "com.bambulab.BambuStudio"; origin = "flathub"; }
    ];
  };

  environment.systemPackages = [ unstable.proton-pass-cli ];

  # ---- nix-ld: lets generic dynamically-linked Linux binaries run as-is —
  # needed for editor extensions (Zed/VSCode LSPs, debuggers, etc.) that
  # download prebuilt binaries not built for NixOS. See
  # https://nix.dev/permalink/stub-ld ----
  programs.nix-ld.enable = true;

  # ---- home-manager (user-level config for darman) ----
  home-manager.useGlobalPkgs = true;
  home-manager.useUserPackages = true;
  home-manager.backupFileExtension = "hm-bak";
  home-manager.extraSpecialArgs = { inherit unstable inputs; };
  home-manager.users.darman = import ./home.nix;

  # ---- Boot (UEFI) ----
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  hardware.cpu.amd.updateMicrocode = true;

  # mercury (aarch64) is built/flashed from here. Without this, `nix build`
  # for it dies with "platform mismatch" — no qemu binfmt handler registered
  # and aarch64-linux missing from nix.settings.extra-platforms. This module
  # sets up both (see CLAUDE.md's aarch64 gotcha).
  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];

  # ---- GPU (Radeon RX 6800 XT / Navi 21) ----
  hardware.enableRedistributableFirmware = true;
  boot.initrd.kernelModules = [ "amdgpu" ];

  # ---- Dev-data disks — NOT in disko, mounted read-write, never wiped ----
  fileSystems."/mnt/hdd_01" = {
    device = "/dev/disk/by-uuid/b8445126-ec6d-4f88-818a-d9e13031d9a4";
    fsType = "ext4";
    options = [ "nofail" ];
  };
  fileSystems."/mnt/ssd_01" = {
    device = "/dev/disk/by-uuid/6ca18a9f-27bc-4e58-aea8-de43a0d0ed5d";
    fsType = "ext4";
    options = [ "nofail" ];
  };

  # jupiter's samba share (services/network/samba.nix) — mounted on demand so
  # terra doesn't stall boot/login when jupiter is off or unreachable.
  fileSystems."/mnt/jupiter" = {
    device = "//jupiter/data";
    fsType = "cifs";
    options = [
      "credentials=${config.sops.templates."jupiter-smb.credentials".path}"
      "uid=1000"
      "gid=100"
      "nofail"
      "x-systemd.automount"
      "x-systemd.idle-timeout=60"
      "x-systemd.mount-timeout=10s"
      "_netdev"
    ];
  };

  system.stateVersion = "26.05";
}