From f05bfc132d7d20e02f90c2d963f47dcb8abf0ef4 Mon Sep 17 00:00:00 2001
From: Socks Candy <socksthefennec@gmail.com>
Date: Sun, 26 Nov 2023 17:16:07 +1000
Subject: [PATCH] modules/terminal: implement termux colorschemes
 (colors.properties)

---
 modules/terminal.nix | 103 ++++++++++++++++++++++++++++++++-----------
 1 file changed, 77 insertions(+), 26 deletions(-)

diff --git a/modules/terminal.nix b/modules/terminal.nix
index 21d1592..16d8cbb 100644
--- a/modules/terminal.nix
+++ b/modules/terminal.nix
@@ -1,36 +1,47 @@
-# Copyright (c) 2019-2022, see AUTHORS. Licensed under MIT License, see LICENSE.
-
-{ config, lib, ... }:
-
-with lib;
-
-let
+# Copyright (c) 2019-2024, see AUTHORS. Licensed under MIT License, see LICENSE.
+{ config
+, lib
+, pkgs
+, ...
+}:
+with lib; let
   cfg = config.terminal;
 in
-
 {
-
   ###### interface
 
   options = {
-
-    terminal.font = mkOption {
-      default = null;
-      type = types.nullOr types.path;
-      example = lib.literalExpression
-        ''"''${pkgs.terminus_font_ttf}/share/fonts/truetype/TerminusTTF.ttf"'';
-      description = ''
-        Font used for the terminal.
-      '';
+    terminal = {
+      font = mkOption {
+        default = null;
+        type = types.nullOr types.path;
+        example =
+          lib.literalExpression
+            ''"''${pkgs.terminus_font_ttf}/share/fonts/truetype/TerminusTTF.ttf"'';
+        description = ''
+          Font used for the terminal.
+        '';
+      };
+      colors = mkOption {
+        default = { };
+        type = types.lazyAttrsOf types.str;
+        example = lib.literalExpression ''
+          {
+            background = "#000000";
+            foreground = "#FFFFFF";
+            cursor = "#FFFFFF";
+          }
+        '';
+        description = ''
+          Colorscheme used for the terminal.
+        '';
+      };
     };
-
   };
 
-
   ###### implementation
 
   config = {
-
     build.activation =
       let
         fontPath =
@@ -40,9 +51,20 @@ in
         configDir = "${config.user.home}/.termux";
         fontTarget = "${configDir}/font.ttf";
         fontBackup = "${configDir}/font.ttf.bak";
+
+        inherit (lib.generators) toKeyValue;
+
+        colors = pkgs.writeTextFile {
+          name = "colors.properties";
+          text = toKeyValue { } cfg.colors;
+        };
+        colorsTarget = "${configDir}/colors.properties";
+        colorsBackup = "${configDir}/colors.properties.bak";
+        colorsPath = "${config.build.installationDir}/${colors}";
       in
-      if (cfg.font != null) then
-        {
+      (
+        if (cfg.font != null)
+        then {
           linkFont = ''
             $DRY_RUN_CMD mkdir $VERBOSE_ARG -p "${configDir}"
             if [ -e "${fontTarget}" ] && ! [ -L "${fontTarget}" ]; then
@@ -52,8 +74,7 @@ in
             $DRY_RUN_CMD ln $VERBOSE_ARG -sf "${fontPath}" "${fontTarget}"
           '';
         }
-      else
-        {
+        else {
           unlinkFont = ''
             if [ -e "${fontTarget}" ] && [ -L "${fontTarget}" ]; then
               $DRY_RUN_CMD rm $VERBOSE_ARG "${fontTarget}"
@@ -68,6 +89,36 @@ in
               fi
             fi
           '';
-        };
+        }
+      )
+      // (
+        if (cfg.colors != { })
+        then {
+          linkColors = ''
+            $DRY_RUN_CMD mkdir $VERBOSE_ARG -p "${configDir}"
+            if [ -e "${colorsTarget}" ] && ! [ -L "${colorsTarget}" ]; then
+              $DRY_RUN_CMD mv $VERBOSE_ARG "${colorsTarget}" "${colorsBackup}"
+              $DRY_RUN_CMD echo "${colorsTarget} has been moved to ${colorsBackup}"
+            fi
+            $DRY_RUN_CMD ln $VERBOSE_ARG -sf "${colorsPath}" "${colorsTarget}"
+          '';
+        }
+        else {
+          unlinkColors = ''
+            if [ -e "${colorsTarget}" ] && [ -L "${colorsTarget}" ]; then
+              $DRY_RUN_CMD rm $VERBOSE_ARG "${colorsTarget}"
+              if [ -e "${colorsBackup}" ]; then
+                $DRY_RUN_CMD mv $VERBOSE_ARG "${colorsBackup}" "${colorsTarget}"
+                $DRY_RUN_CMD echo "${colorsTarget} has been restored from backup"
+              else
+                if $DRY_RUN_CMD rm $VERBOSE_ARG -d "${configDir}" 2>/dev/null
+                then
+                  $DRY_RUN_CMD echo "removed empty ${configDir}"
+                fi
+              fi
+            fi
+          '';
+        }
+      );
   };
 }