Update: Add Mistral API key and Parrot.nvim plugin

- Introduce Mistral API key
- Add Parrot.nvim plugin
- Implement a function to read the API key from a secrets file
- Set up Parrot.nvim with Mistral provider and custom hooks for code assistance and git commit generation

home/common/core/nixvim/plugins/default.nix

@@ -1,10 +1,18 @@
 {
   pkgs,
   config,
+  lib,
+  inputs,
   ...
 }: let
   user = config.home.username;
+  mistralAPIKey = lib.optionalString (lib.hasAttr "sops-nix" inputs) config.sops.secrets."mistral-api-key".path;
 in {
+  sops.secrets = {
+    "mistral-api-key" = {
+    };
+  };
+
   imports = [
     ./cmp.nix
     ./colorizer.nix
@@ -32,6 +40,18 @@ in {
     pkgs.vimPlugins.vim-dadbod-ui
     pkgs.vimPlugins.vim-dadbod-completion
     pkgs.vimPlugins.fugitive
+
+    (pkgs.vimUtils.buildVimPlugin
+      {
+        name = "parrot.nvim";
+        src = pkgs.fetchFromGitHub {
+          owner = "frankroeder";
+          repo = "parrot.nvim";
+          rev = "c992483";
+          sha256 = "sha256-P899qNY/h5LTW0pp3sAmcSDsDGWQedXa20J7EggL7F8=";
+        };
+      })
+
     (pkgs.vimUtils.buildVimPlugin
       {
         name = "buffer_manager.nvim";
@@ -58,6 +78,18 @@ in {
     pkgs.vimPlugins.vim-devicons
   ];
   programs.nixvim.extraConfigLua = ''
+    -- function to read api key from secrets file
+     local function read_api_key(file_path)
+     	local file = io.open(file_path, "r")
+     	if file then
+     		local api_key = file:read("*all")
+     		file:close()
+     		return api_key
+     	else
+     		error("Failed to open file: " .. file_path)
+     	end
+     end
+
     -- buffer_manager.nvim
     local opts = {noremap = true}
 
@@ -123,5 +155,71 @@ in {
       end
       require("conform").format({ async = true, lsp_format = "fallback", range = range })
     end, { range = true })
+
+    -- parrot.nvim setup
+    require("parrot").setup {
+       toggle_target = "popup",
+       providers = {
+         mistral = {
+           api_key = read_api_key("${mistralAPIKey}"),
+           params = {
+             chat = { temperature = 0, top_p = 1, max_tokens = 16384 },
+             command = { temperature = 0, top_p = 1, max_tokens = 16384 },
+           },
+           -- api_key = os.getenv "MISTRAL_API_KEY",
+         },
+       },
+    hooks = {
+      AskCoder = function(prt, params)
+        local prompt = [[
+          You are a code assistent. Answer my question carefully and concisely.
+          Answer with code snippets only. Do not give a summary or include any
+          code comments in your response. Never repeate code from a prevous
+          response or write obvious or unnecessary code, instead refer to such
+          code like: "**rest of code here**", or something to that effect.
+          Tokens are expensive, to we need to be very consice.  If you uses
+          excessive tokens, then I will send you the invoice to pay the bill.
+          Question: {{command}}
+          ```
+        ]]
+        prt.ChatNew(params, prompt)
+      end,
+
+      AskCoderSel = function(parrot, params)
+        local template = [[
+          You are an expert programmer. Here is a code snippet along with a
+          question. Give me a short, accurate and consice answer.
+
+          ```{{filetype}}
+          {{selection}}
+          ```
+        ]]
+        local model_obj = parrot.get_model("command")
+        parrot.logger.info("Asking model: " .. model_obj.name)
+        parrot.Prompt(params, parrot.ui.Target.popup, model_obj, "🤖 Ask ~ ", template)
+      end,
+
+      GitCommit = function(parrot, params)
+          local template = [[
+              You are a git commit generator. You will be provided with a git diff file.
+              Your role is to create a concise commit message that outlines all of the
+              most relevant and impactful changes in the diff. You only output a commit
+              message, do not write anything else not related to the commit. Use
+              imperative mood for you writing style. Your message should include a
+              short summary in the first line followed by more detailed descriptions of
+              the changes on subsequent lines. The first line summary should be no more
+              than 70 characters, not end with a period, and a blank line should
+              separate the summary from the body of the message. There should only be 1
+              summary line, and 1 body with the description. The body should include no
+              more than 3 bullet points with more detailed descriptions of the files
+              and functions that have been modified. Do not output any code.
+              Diff: {{selection}}
+          ]]
+          local model_obj = parrot.get_model("command")
+          parrot.logger.info("Asking model: " .. model_obj.name)
+          parrot.Prompt(params, parrot.ui.Target.popup, model_obj, nil, template)
+        end,
+          }
+     }
   '';
 }