nix/home/terminal/neovim.nix

{
  pkgs,
  config,
  ...
}:
{
  home.sessionVariables = {
    EDITOR = "nvim";
  };

  home.packages = with pkgs; [
    kdePackages.qtdeclarative
    prettier
    prettierd
    nixfmt
    stylua
    black
    clang-tools
  ];

  programs.nixvim = {
    enable = true;
    enablePrintInit = true;
    defaultEditor = true;
    waylandSupport = true;
    viAlias = true;
    vimAlias = true;
    clipboard = {
      register = "unnamedplus";
      providers.wl-copy.enable = true;
    };
    opts = {
      tabstop = 2;
      softtabstop = 2;
      shiftwidth = 2;
      expandtab = true;
      number = true;
    };
    colorschemes.catppuccin = {
      enable = true;
      settings = {
        flavour = config.catppuccin.flavor;
      };
    };
    keymaps = [
      # --- Normal mode mappings ---
      {
        mode = "n";
        key = "<C-c>";
        action = "\"+y";
        options = {
          noremap = true;
          silent = true;
        };
      }
      {
        mode = "n";
        key = "<C-p>";
        action = "\"+p";
        options = {
          noremap = true;
          silent = true;
        };
      }

      # --- Visual mode mappings ---
      {
        mode = "v";
        key = "<C-c>";
        action = "\"+y";
        options = {
          noremap = true;
          silent = true;
        };
      }
      {
        mode = "v";
        key = "<C-p>";
        action = "\"+p";
        options = {
          noremap = true;
          silent = true;
        };
      }
    ];
    plugins = {
      nvim-autopairs = {
        enable = true;
      };
      cmp = {
        enable = true;
        settings = {
          autoEnableSources = true;
          performance = {
            debounce = 60;
            fetchingTimeout = 200;
            maxViewEntries = 30;
          };
          snippet = {
            expand = "luasnip";
          };
          formatting = {
            fields = [
              "kind"
              "abbr"
              "menu"
            ];
          };
          sources = [
            { name = "git"; }
            { name = "nvim_lsp"; }
            { name = "path"; }
            { name = "buffer"; }
            { name = "fish"; }
            { name = "emoji"; }
            {
              name = "buffer"; # text within current buffer
              option.get_bufnrs.__raw = "vim.api.nvim_list_bufs";
              keywordLength = 3;
            }
            { name = "copilot"; }
            {
              name = "path"; # file system paths
              keywordLength = 3;
            }
            {
              name = "luasnip"; # snippets
              keywordLength = 3;
            }
          ];
        };
      };
      conform-nvim = {
        enable = true;
        settings = {
          formatters_by_ft = {
            lua = [ "stylua" ];
            python = [ "black" ];
            nix = [ "nixfmt" ];
            javascript = [ "prettier" ];
            css = [ "prettier" ];
            json = [ "prettier" ];
            jsonc = [ "prettier" ];
            fish = [ "fish_indent" ];
            c = [ "clang-format" ];
            cpp = [ "clang-format" ];
          };

          # Default formatting options
          default_format_opts = {
            lsp_format = "fallback";
          };

          # Format-on-save behavior
          format_on_save = {
            timeout_ms = 500;
          };

          # Custom formatter settings
          formatters = {
            shfmt = {
              append_args = [
                "-i"
                "2"
              ];
            };
          };
        };
      };
      fzf-lua = {
        enable = true;
      };
      kitty-scrollback = {
        enable = true;
      };
      lsp = {
        enable = true;
        servers = {
          qmlls = {
            enable = true;
            cmd = [
              "qmlls"
              "-E"
            ];
          };
          nixd.enable = true;
        };
      };
      lualine =
        let
          palette = pkgs.catppuccin.${config.catppuccin.flavor};
        in
        {
          enable = true;
          settings = {
            options = {
              theme = {
                normal = {
                  a = {
                    fg = palette.base;
                    bg = palette.mauve;
                  };
                  b = {
                    fg = palette.text;
                    bg = palette.surface0;
                  };
                  c = {
                    fg = palette.text;
                  };
                };
                insert = {
                  a = {
                    fg = palette.base;
                    bg = palette.blue;
                  };
                };
                visual = {
                  a = {
                    fg = palette.base;
                    bg = palette.teal;
                  };
                };
                replace = {
                  a = {
                    fg = palette.base;
                    bg = palette.red;
                  };
                };
                inactive = {
                  a = {
                    fg = palette.text;
                    bg = palette.base;
                  };
                  b = {
                    fg = palette.text;
                    bg = palette.base;
                  };
                  c = {
                    fg = palette.text;
                  };
                };
              };
              component_separators = "";
              section_separators = {
                left = "";
                right = "";
              };
            };

            sections = {
              lualine_a = [
                {
                  __unkeyed-1 = "mode";
                  separator = {
                    left = "  ";
                  };
                  right_padding = 2;
                }
              ];
              lualine_b = [
                "filename"
                "branch"
              ];
              lualine_c = [ "%=" ];
              lualine_x = [ ];
              lualine_y = [
                "filetype"
                "progress"
              ];
              lualine_z = [
                {
                  __unkeyed-1 = "location";
                  separator = {
                    right = "  ";
                  };
                  left_padding = 2;
                }
              ];
            };

            inactive_sections = {
              lualine_a = [ "filename" ];
              lualine_b = [ ];
              lualine_c = [ ];
              lualine_x = [ ];
              lualine_y = [ ];
              lualine_z = [ "location" ];
            };
            tabline = { };
            extensions = [ ];
          };
        };
    };
  };
}