From 6760c5ba9ecce09a037d4d9a792c6bc61713872a Mon Sep 17 00:00:00 2001
From: Daniel Flanagan <daniel@lyte.dev>
Date: Tue, 21 Nov 2023 10:36:19 -0600
Subject: [PATCH] Add hibernation to foxtrot

---
 modules/home-manager/broot.nix | 19 ++++++++++++++++++-
 nixos/foxtrot/default.nix      | 26 +++++++++++++++++++++++++-
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/modules/home-manager/broot.nix b/modules/home-manager/broot.nix
index d8a0bc5..60b3da8 100644
--- a/modules/home-manager/broot.nix
+++ b/modules/home-manager/broot.nix
@@ -1,4 +1,4 @@
-{...}: {
+{colors, ...}: {
   programs.broot = {
     enable = true;
     enableFishIntegration = true;
@@ -12,6 +12,23 @@
           execution = "$EDITOR {file}";
         }
       ];
+
+      skin = with colors.withHashPrefix; {
+        status_normal_fg = fg;
+        status_normal_bg = bg;
+        status_error_fg = red;
+        status_error_bg = yellow;
+        tree_fg = red;
+        selected_line_bg = bg2;
+        permissions_fg = purple;
+        size_bar_full_bg = red;
+        size_bar_void_bg = bg;
+        directory_fg = yellow;
+        input_fg = blue;
+        flag_value_fg = yellow;
+        table_border_fg = red;
+        code_fg = yellow;
+      };
     };
   };
 }
diff --git a/nixos/foxtrot/default.nix b/nixos/foxtrot/default.nix
index 9d6dc9d..a355864 100644
--- a/nixos/foxtrot/default.nix
+++ b/nixos/foxtrot/default.nix
@@ -24,7 +24,26 @@
       inputs.hardware.nixosModules.framework-13-7040-amd
     ];
 
-  # TODO: hibernation? does sleep suffice?
+  swapDevices = [
+    # TODO: move this to disko?
+    # sudo btrfs subvolume create /swap
+    # sudo btrfs filesystem mkswapfile --size 32g --uuid clear /swap/swapfile
+    # sudo swapon /swap/swapfile
+    {device = "/swap/swapfile";}
+  ];
+
+  # findmnt -no UUID -T /swap/swapfile
+  boot.resumeDevice = "/dev/disk/by-uuid/3076912c-ac61-4067-b6b2-361f68b2d038";
+
+  services.logind = {
+    lidSwitch = "suspend-then-hibernate";
+    extraConfig = ''
+      HandlePowerKey=suspend-then-hibernate
+      IdleAction=suspend-then-hibernate
+      IdleActionSec=1m
+    '';
+  };
+  systemd.sleep.extraConfig = "HibernateDelaySec=30m";
 
   services.fwupd.enable = true;
   services.fwupd.extraRemotes = ["lvfs-testing"];
@@ -45,10 +64,15 @@
       systemd-boot.enable = true;
     };
     kernelPackages = pkgs.linuxPackages_6_5;
+    # sudo filefrag -v /swap/swapfile | awk '$1=="0:" {print substr($4, 1, length($4)-2)}'
+    # the above won't work for btrfs, instead you need
+    # btrfs inspect-internal map-swapfile -r /swap/swapfile
+    # https://wiki.archlinux.org/title/Power_management/Suspend_and_hibernate#Hibernation_into_swap_file
     # many of these come from https://wiki.archlinux.org/title/Framework_Laptop_13#Suspend
     kernelParams = [
       "amdgpu.sg_display=0"
       "acpi_osi=\"!Windows 2020\""
+      "resume_offset=39331072"
       # "nvme.noacpi=1" # maybe causing crashes upon waking?
       # "rtc_cmos.use_acpi_alarm=1" # maybe causing excessive battery drain while sleeping -- perhaps due to waking?
     ];