lualine: add options

plugins/statuslines/lualine.nix

@@ -1,15 +1,129 @@
 { pkgs, config, lib, ... }:
 with lib;
-let cfg = config.programs.nixvim.plugins.lualine;
+let
+  cfg = config.programs.nixvim.plugins.lualine;
+  helpers = import ../helpers.nix { lib = lib; };
+  separators = mkOption {
+    type = types.submodule {
+      options = {
+        left = mkOption {
+          default = " ";
+          type = types.str;
+          description = "left separator";
+        };
+        right = mkOption {
+          default = " ";
+          type = types.str;
+          description = "right separator";
+        };
+      };
+    };
+    default = { };
+  };
+  component_options = mode:
+    mkOption {
+      type = types.submodule {
+        options = {
+          mode = mkOption {
+            type = types.str;
+            default = "${mode}";
+          };
+          icons_enabled = mkOption {
+            type = types.enum [ "True" "False" ];
+            default = "True";
+            description = "displays icons in alongside component";
+          };
+          icon = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            description = "displays icon in front of the component";
+          };
+          separator = separators;
+        };
+      };
+      default = { };
+    };
 in {
   options = {
     programs.nixvim.plugins.lualine = {
       enable = mkEnableOption "Enable airline";
+
+      options = mkOption {
+        type = types.submodule {
+          options = {
+            theme = mkOption {
+              default = "auto";
+              type = types.str;
+              description = "The theme to use for lualine-nvim.";
+            };
+            section_separators = separators;
+            component_separators = separators;
+            disabled_filestypes = mkOption {
+              type = types.listOf types.str;
+              default = [ ];
+              example = ''[ "lua" ]'';
+              description = "filetypes to disable lualine on";
+            };
+            always_divide_middle = mkOption {
+              type = types.bool;
+              default = true;
+              description =
+                "When true left_sections (a,b,c) can't take over entire statusline";
+            };
+          };
+        };
+        default = { };
+        description = "Options for lualine";
+      };
+      sections = mkOption {
+        type = types.nullOr (types.submodule ({ ... }: {
+          options = {
+            lualine_a = component_options "mode";
+            lualine_b = component_options "branch";
+            lualine_c = component_options "filename";
+
+            lualine_x = component_options "encoding";
+            lualine_y = component_options "progress";
+            lualine_z = component_options "location";
+          };
+        }));
+        default = { };
+      };
+      tabline = mkOption {
+        type = types.nullOr (types.submodule ({ ... }: {
+          options = {
+            lualine_a = component_options "";
+            lualine_b = component_options "";
+            lualine_c = component_options "";
+
+            lualine_x = component_options "";
+            lualine_y = component_options "";
+            lualine_z = component_options "";
+          };
+        }));
+        default = null;
+      };
+      extensions = mkOption {
+        type = types.listOf types.str;
+        default = [ ];
+        example = ''[ "fzf" ]'';
+        description = "list of enabled extensions";
+      };
     };
   };
-  if mkIf cfg.enable {
+  config = mkIf cfg.enable {
     programs.nixvim = {
-      extraPlugins = with pkgs.vimPlugins.lualine-nvim;
+      extraPlugins = [ pkgs.vimPlugins.lualine-nvim ];
+      extraConfigLua = ''require("lualine").setup{''
+        + optionalString (cfg.options != { }) ''
+          options = ${helpers.toLuaObject cfg.options};
+        '' + optionalString (cfg.sections != { }) ''
+          sections = ${helpers.toLuaObject cfg.sections};
+        '' + optionalString (!isNull cfg.tabline) ''
+          tabline = ${helpers.toLuaObject cfg.tabline};
+        '' + optionalString (cfg.extensions != [ ]) ''
+          extensions = ${helpers.toLuaObject cfg.extensions};
+        '' + "}";
     };
   };
 }