From fa2bff4acaa9acc5a5a0f4eb4ba9372dec2262cb Mon Sep 17 00:00:00 2001
From: krizej <60076189+krizej@users.noreply.github.com>
Date: Wed, 10 Jul 2024 19:54:20 +0200
Subject: [PATCH] autorandr works!!!!

---
 programs/autorandr.nix | 26 ++++++++++++++++++--------
 programs/i3.nix        | 10 +++++-----
 utils/monitors.nix     | 20 ++++++++++++++++++++
 3 files changed, 43 insertions(+), 13 deletions(-)
 create mode 100644 utils/monitors.nix

diff --git a/programs/autorandr.nix b/programs/autorandr.nix
index 2444ec0..737a188 100644
--- a/programs/autorandr.nix
+++ b/programs/autorandr.nix
@@ -1,25 +1,21 @@
 { pkgs, ... }:
 {
-  # TODO: this shit ain't working
   home-manager.users.krizej.programs.autorandr = {
     enable = true;
-    hooks.postswitch = {
-      "notify-i3" = "${pkgs.i3}/bin/i3-msg restart";
-    };
     profiles = {
       "main" = {
         fingerprint = {
-          "DP-3" = "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";
-          "HDMI-3" = "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";
+          "Left" = "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";
+          "Right" = "00ffffffffffff0026cd326162190000291c010380361e782a9055a75553a028135054a56b80710081408180a940b3009500950fd1c0023a801871382d40582c4500202f2100001e000000ff0031313534333834313036343938000000fd00374c1e5312000a202020202020000000fc00504c32353330480a2020202020016202032bf14f90050403020111121314060715161f230907078301000065030c001000681a00000101284be6023a801871382d40582c4500202f2100001f011d8018711c1620582c2500202f2100009e011d007251d01e206e285500202f2100001e2a4480a07038274030203500202f2100001a000000000000000000000000ab";
         };
         config = {
-          "DP-3" = {
+          "Left" = {
             enable = true;
             mode = "1920x1080";
             rate = "239.76";
             position = "0x0";
           };
-          "HDMI-3" = {
+          "Right" = {
             enable = true;
             mode = "1920x1080";
             rate = "74.97";
@@ -30,4 +26,18 @@
       };
     };
   };
+  # the autorandr service from home-manager sucks, can't customize flags
+  home-manager.users.krizej.services.autorandr.enable = false;
+  home-manager.users.krizej.systemd.user.services.autorandr = {
+    Unit = {
+      Description = "autorandr";
+      After = [ "graphical-session-pre.target" ];
+      PartOf = [ "graphical-session.target" ];
+    };
+    Service = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.autorandr}/bin/autorandr --match-edid -l main";
+    };
+    Install.WantedBy = [ "graphical-session.target" ];
+  };
 }
diff --git a/programs/i3.nix b/programs/i3.nix
index 2e773f9..4d0ae99 100644
--- a/programs/i3.nix
+++ b/programs/i3.nix
@@ -1,6 +1,7 @@
-{ config, pkgs, ... }:
+args @ { config, pkgs, lib, ... }:
 let
   HOME = config.home-manager.users.krizej.home.homeDirectory;
+  monitors = import ../utils/monitors.nix args;
 in {
   services.xserver.windowManager.i3.enable = true;
   home-manager.users.krizej = {
@@ -50,8 +51,8 @@ in {
 
         defaultWorkspace = "workspace number 1";
         workspaceOutputAssign = [
-          { workspace = "1"; output = "DP-3"; }
-          { workspace = "2"; output = "HDMI-3"; }
+          { workspace = "1"; output = "DisplayPort-2"; } # monitors.left; }
+          { workspace = "2"; output = "HDMI-A-0"; } # monitors.right; }
         ];
 
         focus = {
@@ -68,8 +69,6 @@ in {
           { command = "i3-msg \"workspace 2; append_layout ~/.config/i3/workspace2.json\""; notification = false; }
           { command = "discord &"; notification = false; }
           { command = "element-desktop &"; notification = false; }
-
-          { command = "xrandr --output DP-3 --mode 1920x1080 --rate 239.76 --primary --output HDMI-3 --mode 1920x1080 --rate 74.97 --right-of DP-3 &"; notification = false; }
         ];
 
         modes = let
@@ -242,6 +241,7 @@ in {
     home.file = {
       ".config/i3/workspace2.json".source = ../files/workspace2.json;
       ".config/i3/i3gtk.css".source = ../files/i3gtk.css;
+      "dupa".text = "[${monitors.left}][${monitors.right}]";
     };
   };
 }
diff --git a/utils/monitors.nix b/utils/monitors.nix
new file mode 100644
index 0000000..4002557
--- /dev/null
+++ b/utils/monitors.nix
@@ -0,0 +1,20 @@
+# fixme: when rebuiling the commands are ran as some nixos builder user probably and autorandr does not use my config
+{ pkgs, ... }: let
+  autorandr = "${pkgs.autorandr}/bin/autorandr";
+  rg = "${pkgs.ripgrep}/bin/rg";
+  rev = "${pkgs.util-linux}/bin/rev";
+  cut = "${pkgs.coreutils-full}/bin/cut";
+  # epically stolen from https://git.jacekpoz.pl/jacekpoz/nte/src/branch/master/stdlib.nix
+  # but i changed lib.strings.readFile to lib.fileContents
+  inherit (pkgs) lib runCommand;
+  inherit (lib) fileContents;
+  run = script: builtins.toString (runCommand "run" {} ''
+    echo $(${script}) > $out
+  '');
+in {
+  # this parses "main: renaming display Left to DisplayPort-2"
+  # and i am interested in "DisplayPort-2"
+  # and also it's printed to stderr so 2>&1
+  left = run "${autorandr} --match-edid 2>&1 | ${rg} Left | ${rev} | ${cut} -d' ' -f1 | ${rev}";
+  right = run "${autorandr} --match-edid 2>&1 | ${rg} Right | ${rev} | ${cut} -d' ' -f1 | ${rev}";
+}