neovim-flake/modules/statusline/lualine.nix

{
  pkgs,
  config,
  lib,
  ...
}:
with lib;
with builtins; let
  cfg = config.vim.statusline.lualine;
  supported_themes = import ./supported_lualine_themes.nix;
in {
  options.vim.statusline.lualine = {
    enable = mkOption {
      type = types.bool;
      description = "Enable lualine";
    };

    icons = mkOption {
      type = types.bool;
      description = "Enable icons for lualine";
    };

    theme = mkOption {
      type = types.enum (
        [
          "auto"
          "16color"
          "gruvbox"
          "ayu_dark"
          "ayu_light"
          "ayu_mirage"
          "codedark"
          "dracula"
          "everforest"
          "gruvbox"
          "gruvbox_light"
          "gruvbox_material"
          "horizon"
          "iceberg_dark"
          "iceberg_light"
          "jellybeans"
          "material"
          "modus_vivendi"
          "molokai"
          "nightfly"
          "nord"
          "oceanicnext"
          "onelight"
          "palenight"
          "papercolor_dark"
          "papercolor_light"
          "powerline"
          "seoul256"
          "solarized_dark"
          "tomorrow"
          "wombat"
        ]
        ++ (
          if elem config.vim.theme.name supported_themes
          then [config.vim.theme.name]
          else []
        )
      );
      description = "Theme for lualine";
    };

    sectionSeparator = {
      left = mkOption {
        type = types.str;
        description = "Section separator for left side";
      };

      right = mkOption {
        type = types.str;
        description = "Section separator for right side";
      };
    };

    componentSeparator = {
      left = mkOption {
        type = types.str;
        description = "Component separator for left side";
      };

      right = mkOption {
        type = types.str;
        description = "Component separator for right side";
      };
    };

    activeSection = {
      a = mkOption {
        type = types.str;
        description = "active config for: | (A) | B | C       X | Y | Z |";
      };

      b = mkOption {
        type = types.str;
        description = "active config for: | A | (B) | C       X | Y | Z |";
      };

      c = mkOption {
        type = types.str;
        description = "active config for: | A | B | (C)       X | Y | Z |";
      };

      x = mkOption {
        type = types.str;
        description = "active config for: | A | B | C       (X) | Y | Z |";
      };

      y = mkOption {
        type = types.str;
        description = "active config for: | A | B | C       X | (Y) | Z |";
      };

      z = mkOption {
        type = types.str;
        description = "active config for: | A | B | C       X | Y | (Z) |";
      };
    };

    inactiveSection = {
      a = mkOption {
        type = types.str;
        description = "inactive config for: | (A) | B | C       X | Y | Z |";
      };

      b = mkOption {
        type = types.str;
        description = "inactive config for: | A | (B) | C       X | Y | Z |";
      };

      c = mkOption {
        type = types.str;
        description = "inactive config for: | A | B | (C)       X | Y | Z |";
      };

      x = mkOption {
        type = types.str;
        description = "inactive config for: | A | B | C       (X) | Y | Z |";
      };

      y = mkOption {
        type = types.str;
        description = "inactive config for: | A | B | C       X | (Y) | Z |";
      };

      z = mkOption {
        type = types.str;
        description = "inactive config for: | A | B | C       X | Y | (Z) |";
      };
    };
  };

  config =
    mkIf cfg.enable
    {
      #assertions = [
      #  ({
      #    assertion = if cfg.icons then (config.vim.visuals.enable && config.vim.visuals.nvimWebDevicons.enable) else true;
      #    message = "Must enable config.vim.visual.nvimWebDevicons if using config.vim.visuals.lualine.icons";
      #  })
      #];

      vim.startPlugins = ["lualine"];
      vim.luaConfigRC.lualine = nvim.dag.entryAnywhere ''
        require'lualine'.setup {
          options = {
            icons_enabled = ${
          if cfg.icons
          then "true"
          else "false"
        },
            theme = "${cfg.theme}",
            component_separators = {"${cfg.componentSeparator.left}","${cfg.componentSeparator.right}"},
            section_separators = {"${cfg.sectionSeparator.left}","${cfg.sectionSeparator.right}"},
            disabled_filetypes = {},
          },
          sections = {
            lualine_a = ${cfg.activeSection.a},
            lualine_b = ${cfg.activeSection.b},
            lualine_c = ${cfg.activeSection.c},
            lualine_x = ${cfg.activeSection.x},
            lualine_y = ${cfg.activeSection.y},
            lualine_z = ${cfg.activeSection.z},
          },
          inactive_sections = {
            lualine_a = ${cfg.inactiveSection.a},
            lualine_b = ${cfg.inactiveSection.b},
            lualine_c = ${cfg.inactiveSection.c},
            lualine_x = ${cfg.inactiveSection.x},
            lualine_y = ${cfg.inactiveSection.y},
            lualine_z = ${cfg.inactiveSection.z},
          },
          tabline = {},
          extensions = {${
          if config.vim.filetree.nvimTreeLua.enable
          then "\"nvim-tree\""
          else ""
        }},
        }
      '';
    };
}