Add Chat features like CopilotChat.nvim

[perfectspr]

see https://github.com/CopilotC-Nvim/CopilotChat.nvim

[Dronakurl]

I use codecompaion.nvim for that:

{
    "olimorris/codecompanion.nvim",
    dependencies = {
      "nvim-lua/plenary.nvim",
      "nvim-treesitter/nvim-treesitter",
    },
    config = function()
      require("codecompanion").setup({
        strategies = {
          chat = { adapter = "openai" },
          inline = { adapter = "openai" },
        },
        adapters = {
         tabby = function()
            return require("codecompanion.adapters").extend("openai_compatible", {
              env = {
                url = "http://localhost:8080", -- optional: default value is ollama url http://127.0.0.1:11434
                api_key = "auth_881a958cbb454e1aa87a3fa17e8e9649", -- optional: if your endpoint is authenticated
                chat_url = "/v1/chat/completions", -- optional: default value, override if different
              },
              schema = {
                model = {
                  default = "Qwen2-1.5B-Instruct",
                  choices = { "Qwen2-1.5B-Instruct" },
                },
              },
            })
          end,
        },
      })
    end,
    keys = {
      {
        "<leader>ar",
        ":CodeCompanion ",
        desc = "Quick change",
        mode = { "n", "v" },
      },
      {
        "<leader>ao",
        ":CodeCompanionChat openai<CR>",
        desc = "Open OpenAI chat",
        mode = { "n", "v" },
      },
    },
  }