pojokcodeid.nvim-lazy/lua/plugins/bufferline.lua

return {
  "akinsho/bufferline.nvim",
  branch = "main",
  event = { "BufRead", "InsertEnter", "BufNewFile" },
  config = function()
    local status_ok, bufferline = pcall(require, "bufferline")
    if not status_ok then
      return
    end

    local icons = pcode.icons
    local use_icons = true

    -- get folder name from current directory
    local _get_folder_name = function()
      local str = vim.fn.fnamemodify(vim.fn.getcwd(), ":t")
      return " " .. icons.ui.ProjekFolder .. " " .. str:lower():gsub("^%l", string.upper) .. " "
    end

    local function diagnostics_indicator(num, _, diagnostics, _)
      local result
      local symbols = {
        error = icons.diagnostics.Error,
        warning = icons.diagnostics.Warning,
        info = icons.diagnostics.Information,
      }
      if not use_icons then
        return "(" .. num .. ")"
      end
      for name, count in pairs(diagnostics) do
        if symbols[name] and count > 0 then
          table.insert(result, symbols[name] .. " " .. count)
        end
      end
      result = table.concat(result, " ")
      return #result > 0 and result or ""
    end

    vim.opt.termguicolors = true

    bufferline.setup({
      options = {
        color_icons = true,
        numbers = "none", -- | "ordinal" | "buffer_id" | "both" | function({ ordinal, id, lower, raise }): string,
        close_command = function(bufnum)
          require("user.utils.bufferline").bufremove(bufnum)
        end,
        right_mouse_command = function(bufnum)
          require("user.utils.bufferline").bufremove(bufnum)
        end,
        -- close_command = "bdelete! %d",
        -- right_mouse_command = "bdelete! %d",
        left_mouse_command = "buffer %d",
        middle_mouse_command = nil,

        indicator_icon = nil,
        indicator = { style = "icon", icon = icons.ui.BoldLineLeft },
        buffer_close_icon = icons.ui.Close,
        modified_icon = icons.ui.Circle,
        close_icon = icons.ui.BoldClose,
        left_trunc_marker = icons.ui.ArrowCircleLeft,
        right_trunc_marker = icons.ui.ArrowCircleRight,
        max_name_length = 30,
        max_prefix_length = 30,
        tab_size = 21,
        diagnostics = false, -- | "nvim_lsp" | "coc",
        diagnostics_update_in_insert = false,
        diagnostics_indicator = diagnostics_indicator,
        offsets = {
          {
            filetype = "NvimTree",
            text = _get_folder_name(),
            highlight = "Directory",
            text_align = "left",
            padding = 1,
          },
          {
            filetype = "neo-tree",
            text = _get_folder_name(),
            highlight = "Directory",
            text_align = "left",
            padding = 1,
          },
          {
            filetype = "dbui",
            text = "",
            highlight = "Directory",
            text_align = "left",
            padding = 1,
          },
        },
        show_buffer_icons = true,
        show_buffer_close_icons = true,
        show_close_icon = true,
        show_tab_indicators = true,
        persist_buffer_sort = true, -- whether or not custom sorted buffers should persist
        separator_style = { "", "" }, -- | "thick" | "thin" | { 'any', 'any' },
        enforce_regular_tabs = true,
        always_show_bufferline = true,
      },
      highlights = {
        fill = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "none", highlight = "TabLine" },
        },
        background = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "none", highlight = "TabLine" },
        },
        buffer_visible = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "none", highlight = "TabLine" },
        },
        close_button = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "none", highlight = "TabLine" },
        },
        close_button_visible = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "none", highlight = "TabLine" },
        },
        tab_selected = {
          fg = { attribute = "fg", highlight = "Normal" },
          bg = { attribute = "bg", highlight = "Normal" },
        },
        tab = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "bg", highlight = "TabLine" },
        },
        tab_close = {
          -- fg = {attribute='fg',highlight='LspDiagnosticsDefaultError'},
          fg = { attribute = "fg", highlight = "TabLineSel" },
          bg = { attribute = "bg", highlight = "Normal" },
        },
        duplicate_selected = {
          fg = { attribute = "fg", highlight = "TabLineSel" },
          bg = { attribute = "bg", highlight = "TabLineSel" },
          underline = true,
        },
        duplicate_visible = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "bg", highlight = "TabLine" },
          underline = true,
        },
        duplicate = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "bg", highlight = "TabLine" },
          underline = true,
        },

        modified = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "bg", highlight = "TabLine" },
        },
        modified_selected = {
          fg = { attribute = "fg", highlight = "Normal" },
          bg = { attribute = "bg", highlight = "Normal" },
        },
        modified_visible = {
          fg = { attribute = "fg", highlight = "TabLine" },
          bg = { attribute = "bg", highlight = "TabLine" },
        },

        separator = {
          fg = { attribute = "bg", highlight = "TabLine" },
          bg = { attribute = "bg", highlight = "TabLine" },
        },
        separator_selected = {
          fg = { attribute = "bg", highlight = "Normal" },
          bg = { attribute = "bg", highlight = "Normal" },
        },
        indicator_selected = {
          fg = { attribute = "fg", highlight = "LspDiagnosticsDefaultHint" },
          bg = { attribute = "bg", highlight = "Normal" },
        },
      },
    })
  end,
}