{
  config,
  lib,
  ...
}:
with lib;
with builtins; let
  cfg = config.vim.ui.breadcrumbs;
  nb = cfg.navbuddy;

  nilOrStr = v:
    if v == null
    then "nil"
    else toString v;
in {
  config = mkIf cfg.enable {
    vim.startPlugins =
      [
        "nvim-lspconfig"
      ]
      ++ lib.optionals (config.vim.lsp.lspsaga.enable && cfg.source == "lspsaga") [
        "lspsaga"
      ]
      ++ lib.optionals (cfg.navbuddy.enable || cfg.source == "nvim-navic") [
        "nvim-navbuddy"
        "nvim-navic"
      ];

    vim.luaConfigRC.breadcrumbs = nvim.dag.entryAfter ["lspconfig"] ''
      local navbuddy = require("nvim-navbuddy")
      local navic = require("nvim-navic")
      local actions = require("nvim-navbuddy.actions")

      -- TODO: wrap this in an optional string with navbuddy as the enable condition
      navbuddy.setup {
          window = {
              border = "${nb.window.border}",  -- "rounded", "double", "solid", "none"
              size = "60%",
              position = "50%",
              scrolloff = ${(nilOrStr nb.window.scrolloff)},
              sections = {
                  left = {
                      size = "20%",
                      border = ${(nilOrStr nb.window.sections.left.border)},
                  },

                  mid = {
                      size = "40%",
                      border = ${(nilOrStr nb.window.sections.mid.border)},
                  },

                  right = {
                      border = ${(nilOrStr nb.window.sections.right.border)},
                      preview = "leaf",
                  }
              },
          },
          node_markers = {
              enabled = ${boolToString nb.nodeMarkers.enable},
              icons = {
                  leaf = "${nb.nodeMarkers.icons.leaf}",
                  leaf_selected = "${nb.nodeMarkers.icons.leafSelected}",
                  branch = "${nb.nodeMarkers.icons.branch}",
              },
          },

          lsp = {
              auto_attach = ${boolToString nb.lsp.autoAttach},
              preference = nil, -- TODO: convert list to lua table if not null
          },

          source_buffer = {
              follow_node = ${boolToString nb.sourceBuffer.followNode},
              highlight = ${boolToString nb.sourceBuffer.highlight},
              reorient = "${nb.sourceBuffer.reorient}",
              scrolloff = ${nilOrStr nb.sourceBuffer.scrolloff}
          },

          -- TODO: make those configurable
          icons = {
              File          = "${cfg.navbuddy.icons.file}",
              Module        = "${cfg.navbuddy.icons.module}",
              Namespace     = "${cfg.navbuddy.icons.namespace}",
              Package       = "${cfg.navbuddy.icons.package}",
              Class         = "${cfg.navbuddy.icons.class}",
              Method        = "${cfg.navbuddy.icons.method}",
              Property      = "${cfg.navbuddy.icons.property}",
              Field         = "${cfg.navbuddy.icons.field}",
              Constructor   = "${cfg.navbuddy.icons.constructor}",
              Enum          = "${cfg.navbuddy.icons.enum}",
              Interface     = "${cfg.navbuddy.icons.interface}",
              Function      = "${cfg.navbuddy.icons.function}",
              Variable      = "${cfg.navbuddy.icons.variable}",
              Constant      = "${cfg.navbuddy.icons.constant}",
              String        = "${cfg.navbuddy.icons.string}",
              Number        = "${cfg.navbuddy.icons.number}",
              Boolean       = "${cfg.navbuddy.icons.boolean}",
              Array         = "${cfg.navbuddy.icons.array}",
              Object        = "${cfg.navbuddy.icons.object}",
              Key           = "${cfg.navbuddy.icons.key}",
              Null          = "${cfg.navbuddy.icons.null}",
              EnumMember    = "${cfg.navbuddy.icons.enumMember}",
              Struct        = "${cfg.navbuddy.icons.struct}",
              Event         = "${cfg.navbuddy.icons.event}",
              Operator      = "${cfg.navbuddy.icons.operator}",
              TypeParameter = "${cfg.navbuddy.icons.typeParameter}"
          },

          -- make those configurable
          use_default_mappings = ${cfg.navbuddy.useDefaultMappings},
          mappings = {
              ["${cfg.navbuddy.mappings.close}"] = actions.close(),        -- Close and cursor to original location

              ["${cfg.navbuddy.mappings.nextSibling}"] = actions.next_sibling(),     -- down
              ["${cfg.navbuddy.mappings.previousSibling}"] = actions.previous_sibling(), -- up

              ["${cfg.navbuddy.mappings.close}"] = actions.parent(),           -- Move to left panel
              ["${cfg.navbuddy.mappings.children}"] = actions.children(),         -- Move to right panel
              ["${cfg.navbuddy.mappings.root}"] = actions.root(),             -- Move to first panel

              ["${cfg.navbuddy.mappings.visualName}"] = actions.visual_name(),      -- Visual selection of name
              ["${cfg.navbuddy.mappings.visualScope}"] = actions.visual_scope(),     -- Visual selection of scope

              ["${cfg.navbuddy.mappings.yankName}"] = actions.yank_name(),        -- Yank the name to system clipboard "+
              ["${cfg.navbuddy.mappings.yankScope}"] = actions.yank_scope(),       -- Yank the scope to system clipboard "+

              ["${cfg.navbuddy.mappings.insertName}"] = actions.insert_name(),      -- Insert at start of name
              ["${cfg.navbuddy.mappings.insertScope}"] = actions.insert_scope(),     -- Insert at start of scope

              ["${cfg.navbuddy.mappings.appendName}"] = actions.append_name(),      -- Insert at end of name
              ["${cfg.navbuddy.mappings.appendScope}"] = actions.append_scope(),     -- Insert at end of scope

              ["${cfg.navbuddy.mappings.rename}"] = actions.rename(),           -- Rename currently focused symbol

              ["${cfg.navbuddy.mappings.delete}"] = actions.delete(),           -- Delete scope

              ["${cfg.navbuddy.mappings.foldCreate}"] = actions.fold_create(),      -- Create fold of current scope
              ["${cfg.navbuddy.mappings.foldDelete}"] = actions.fold_delete(),      -- Delete fold of current scope

              ["${cfg.navbuddy.mappings.comment}"] = actions.comment(),          -- Comment out current scope

              ["${cfg.navbuddy.mappings.select}"] = actions.select(),     -- Goto selected symbol

              ["${cfg.navbuddy.mappings.moveDown}"] = actions.move_down(),        -- Move focused node down
              ["${cfg.navbuddy.mappings.moveUp}"] = actions.move_up(),          -- Move focused node up

              ["${cfg.navbuddy.mappings.telescope}"] = actions.telescope({         -- Fuzzy finder at current level.
                  layout_config = {               -- All options that can be
                      height = 0.60,              -- passed to telescope.nvim's
                      width = 0.75,               -- default can be passed here.
                      prompt_position = "top",
                      preview_width = 0.50
                  },
                  layout_strategy = "horizontal"
              }),

              ["${cfg.navbuddy.mappings.help}"] = actions.help(),            -- Open mappings help window
          }
        }
    '';
  };
}