treewide: begin restructuring the module tree

modules/plugins/lsp/trouble/config.nix

@@ -0,0 +1,41 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.nvim.dag) entryAnywhere;
+  inherit (lib.nvim.binds) addDescriptionsToMappings mkSetBinding pushDownDefault;
+
+  cfg = config.vim.lsp;
+
+  self = import ./trouble.nix {inherit lib;};
+  mappingDefinitions = self.options.vim.lsp.trouble.mappings;
+  mappings = addDescriptionsToMappings cfg.trouble.mappings mappingDefinitions;
+in {
+  config = mkIf (cfg.enable && cfg.trouble.enable) {
+    vim = {
+      startPlugins = ["trouble"];
+
+      maps.normal = mkMerge [
+        (mkSetBinding mappings.toggle "<cmd>TroubleToggle<CR>")
+        (mkSetBinding mappings.workspaceDiagnostics "<cmd>TroubleToggle workspace_diagnostics<CR>")
+        (mkSetBinding mappings.documentDiagnostics "<cmd>TroubleToggle document_diagnostics<CR>")
+        (mkSetBinding mappings.lspReferences "<cmd>TroubleToggle lsp_references<CR>")
+        (mkSetBinding mappings.quickfix "<cmd>TroubleToggle quickfix<CR>")
+        (mkSetBinding mappings.locList "<cmd>TroubleToggle loclist<CR>")
+      ];
+
+      binds.whichKey.register = pushDownDefault {
+        "<leader>l" = "Trouble";
+        "<leader>x" = "+Trouble";
+        "<leader>lw" = "Workspace";
+      };
+
+      luaConfigRC.trouble = entryAnywhere ''
+        -- Enable trouble diagnostics viewer
+        require("trouble").setup {}
+      '';
+    };
+  };
+}

modules/plugins/lsp/trouble/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./trouble.nix
+    ./config.nix
+  ];
+}

modules/plugins/lsp/trouble/trouble.nix

@@ -0,0 +1,19 @@
+{lib, ...}: let
+  inherit (lib.options) mkEnableOption;
+  inherit (lib.nvim.binds) mkMappingOption;
+in {
+  options.vim.lsp = {
+    trouble = {
+      enable = mkEnableOption "trouble diagnostics viewer";
+
+      mappings = {
+        toggle = mkMappingOption "Toggle trouble [trouble]" "<leader>xx";
+        workspaceDiagnostics = mkMappingOption "Workspace diagnostics [trouble]" "<leader>lwd";
+        documentDiagnostics = mkMappingOption "Document diagnostics [trouble]" "<leader>ld";
+        lspReferences = mkMappingOption "LSP References [trouble]" "<leader>lr";
+        quickfix = mkMappingOption "QuickFix [trouble]" "<leader>xq";
+        locList = mkMappingOption "LOCList [trouble]" "<leader>xl";
+      };
+    };
+  };
+}