lualine.lua

return {
  "nvim-lualine/lualine.nvim",
  opts = function(_, opts)
  local auto = require("lualine.themes.auto")

  local colors = {
    rosewater = "#f2d5cf",
    flamingo = "#eebebe",
    pink = "#f4b8e4",
    mauve = "#ca9ee6",
    red = "#e78284",
    maroon = "#ea999c",
    peach = "#ef9f76",
    yellow = "#e5c890",
    green = "#a6d189",
    teal = "#81c8be",
    sky = "#99d1db",
    sapphire = "#85c1dc",
    blue = "#8caaee",
    lavender = "#babbf1",
    text = "#c6d0f5",
    subtext1 = "#b5bfe2",
    subtext0 = "#a5adce",
    overlay2 = "#949cbb",
    overlay1 = "#838ba7",
    overlay0 = "#737994",
    surface2 = "#626880",
    surface1 = "#51576d",
    surface0 = "#414559",
    base = "#303446",
    mantle = "#292c3c",
    crust = "#232634",
  }

  local function separator()
    return {
      function()
        return "│"
      end,
      color = { fg = colors.surface0, bg = "NONE", gui = "bold" },
      padding = { left = 1, right = 1 },
    }
  end

  local function custom_branch()
    local gitsigns = vim.b.gitsigns_head
    local fugitive = vim.fn.exists("*FugitiveHead") == 1 and vim.fn.FugitiveHead() or ""
    local branch = gitsigns or fugitive
    if branch == nil or branch == "" then
      return ""
    else
      return " " .. branch
    end
  end

  local modes = { "normal", "insert", "visual", "replace", "command", "inactive", "terminal" }
  for _, mode in ipairs(modes) do
    if auto[mode] and auto[mode].c then
      auto[mode].c.bg = "NONE"
    end
  end

  opts.options = vim.tbl_deep_extend("force", opts.options or {}, {
    theme = auto,
    component_separators = "",
    section_separators = "",
    globalstatus = true,
    disabled_filetypes = { statusline = {}, winbar = {} },
  })

  opts.sections = {
    lualine_a = {
      {
        "mode",
        fmt = function(str)
          return str:sub(1, 1)
        end,
        color = function()
          local mode = vim.fn.mode()
          if mode == "\22" then
            return { fg = "none", bg = colors.red, gui = "bold" }
          elseif mode == "V" then
            return { fg = colors.red, bg = "none", gui = "underline,bold" }
          else
            return { fg = colors.red, bg = "none", gui = "bold" }
          end
        end,
        padding = { left = 0, right = 0 },
      },
    },
    lualine_b = {
      separator(),
      {
        custom_branch,
        color = { fg = colors.green, bg = "none", gui = "bold" },
        padding = { left = 0, right = 0 },
      },
      {
        "diff",
        colored = true,
        diff_color = {
          added = { fg = colors.teal, bg = "none", gui = "bold" },
          modified = { fg = colors.yellow, bg = "none", gui = "bold" },
          removed = { fg = colors.red, bg = "none", gui = "bold" },
        },
        symbols = { added = "+", modified = "~", removed = "-" },
        source = nil,
        padding = { left = 1, right = 0 },
      },
    },
    lualine_c = {
      separator(),
      {
        "filetype",
        icon_only = true,
        colored = false,
        color = { fg = colors.blue, bg = "none", gui = "bold" },
        padding = { left = 0, right = 1 },
      },
      {
        "filename",
        file_status = true,
        path = 0,
        shorting_target = 20,
        symbols = {
          modified = "[+]",
          readonly = "[-]",
          unnamed = "[?]",
          newfile = "[!]",
        },
        color = { fg = colors.blue, bg = "none", gui = "bold" },
        padding = { left = 0, right = 0 },
      },
      separator(),
      {
        function()
          local bufnr_list = vim.fn.getbufinfo({ buflisted = 1 })
          local total = #bufnr_list
          local current_bufnr = vim.api.nvim_get_current_buf()
          local current_index = 0

          for i, buf in ipairs(bufnr_list) do
            if buf.bufnr == current_bufnr then
              current_index = i
              break
            end
          end

          return string.format(" %d/%d", current_index, total)
        end,
        color = { fg = colors.yellow, bg = "none", gui = "bold" },
        padding = { left = 0, right = 0 },
      },
    },
    lualine_x = {
      {
        "fileformat",
        color = { fg = colors.yellow, bg = "none", gui = "bold" },
        symbols = {
          unix = "",
          dos = "",
          mac = "",
        },
        padding = { left = 0, right = 0 },
      },
      {
        "encoding",
        color = { fg = colors.yellow, bg = "none", gui = "bold" },
        padding = { left = 1, right = 0 },
      },
      separator(),
      {
        function()
          local size = vim.fn.getfsize(vim.api.nvim_buf_get_name(0))
          if size < 0 then
            return "-"
          else
            if size < 1024 then
              return size .. "B"
            elseif size < 1024 * 1024 then
              return string.format("%.1fK", size / 1024)
            elseif size < 1024 * 1024 * 1024 then
              return string.format("%.1fM", size / (1024 * 1024))
            else
              return string.format("%.1fG", size / (1024 * 1024 * 1024))
            end
          end
        end,
        color = { fg = colors.blue, bg = "none", gui = "bold" },
        padding = { left = 0, right = 0 },
      },
    },
    lualine_y = {
      separator(),
      {
        "diagnostics",
        sources = { "nvim_diagnostic", "coc" },
        sections = { "error", "warn", "info", "hint" },
        diagnostics_color = {
          error = function()
            local count = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.ERROR })
            return { fg = (count == 0) and colors.green or colors.red, bg = "none", gui = "bold" }
          end,
          warn = function()
            local count = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.WARN })
            return { fg = (count == 0) and colors.green or colors.yellow, bg = "none", gui = "bold" }
          end,
          info = function()
            local count = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.INFO })
            return { fg = (count == 0) and colors.green or colors.blue, bg = "none", gui = "bold" }
          end,
          hint = function()
            local count = #vim.diagnostic.get(0, { severity = vim.diagnostic.severity.HINT })
            return { fg = (count == 0) and colors.green or colors.teal, bg = "none", gui = "bold" }
          end,
        },
        symbols = {
          error = "󰅚 ",
          warn = "󰀪 ",
          info = "󰋽 ",
          hint = "󰌶 ",
        },
        colored = true,
        update_in_insert = false,
        always_visible = true,
        padding = { left = 0, right = 0 },
      },
    },
    lualine_z = {
      separator(),
      {
        "progress",
        color = { fg = colors.red, bg = "none", gui = "bold" },
        padding = { left = 0, right = 0 },
      },
      {
        "location",
        color = { fg = colors.red, bg = "none", gui = "bold" },
        padding = { left = 1, right = 0 },
      },
    },
  }

  return opts
  end,
}