local status_ok, el = pcall(require, "el")
if not status_ok then
  return
end

el.reset_windows()

local builtin = require "el.builtin"
local sections = require "el.sections"
local c = require "components"

-- color setup
local hl_statusline = "StatusLine"
--diagnostic colors
local hl_hint = "DiagnosticHint"
local hl_info = "DiagnosticInfo"
local hl_warn = "DiagnosticWarn"
local hl_err = "DiagnosticError"
-- git colors
local hl_red = "ErrorMsg"
local hl_green = "diffAdded"
local hl_yellow = "WarningMsg"
local highlights = {
  -- diagnostic colors
  diag_err = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_err] = "fg" },
    bold = true,
  }),
  diag_warn = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_warn] = "fg" },
    bold = true,
  }),
  diag_info = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_info] = "fg" },
    bold = true,
  }),
  diag_hint = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_hint] = "fg" },
    bold = true,
  }),

  -- git colors
  red_fg = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_red] = "fg" },
    bold = true,
  }),
  green_fg = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_green] = "fg" },
    bold = true,
  }),
  yellow_fg = c.extract_hl({
    bg = { [hl_statusline] = "bg" },
    fg = { [hl_yellow] = "fg" },
    bold = true,
  }),
}

-- modes
local modes = {
  --     display name, mode, highlight group
  n      = { "Normal", "N" },
  niI    = { "Normal", "N" },
  niR    = { "Normal", "N" },
  niV    = { "Normal", "N" },
  no     = { "N·OpPd", "?" },
  v      = { "Visual", "V" },
  V      = { "V·Line", "Vl" },
  [""]   = { "V·Block", "Vb" },
  s      = { "Select", "S" },
  S      = { "S·Line", "Sl" },
  [""]   = { "S·Block", "Sb" },
  i      = { "Insert", "I" },
  ic     = { "ICompl", "Ic" },
  R      = { "Replace", "R" },
  Rv     = { "VReplace", "Rv" },
  c      = { "Command", "C" },
  cv     = { "Vim Ex", "E" },
  ce     = { "Ex (r)", "E" },
  r      = { "Prompt", "P" },
  rm     = { "More  ", "M" },
  ["r?"] = { "Confirm", "Cn" },
  ["!"]  = { "Shell ", "S" },
  nt     = { "Term  ", "T" },
  t      = { "Term  ", "T" },
}

el.setup {
  generator = function()

  local items = {
    { c.mode { modes = modes, fmt = " %s %s ", icon = "", hl_icon_only = false } },
    { sections.split, required = true },
    { sections.collapse_builtin { { builtin.filetype }, { " " } } },
    { sections.maximum_width(builtin.tail_file, 0.50), required = true },
    { sections.collapse_builtin { { " " }, { builtin.modified_flag } } },
    { sections.split, required = true },
    { c.diagnostics {
      fmt = "[%s]", lsp = true,
      hl_err  = highlights.diag_err,
      hl_warn = highlights.diag_warn,
      hl_info = highlights.diag_info,
      hl_hint = highlights.diag_hint,
      icon_err = 'x', icon_warn = '!', icon_info = 'i', icon_hint = 'h'
    }
    },
    { c.git_branch { fmt = "%s *%s", icon = "" } },
    { c.git_changes_buf {
        fmt = "[%s]",
        icon_insert = "+",
        icon_change = "~",
        icon_delete = "-",
        hl_insert = highlights.green_fg,
        hl_change = highlights.yellow_fg,
        hl_delete = highlights.red_fg,
      }
    },
  }

  local add_item = function(result, item)
    table.insert(result, item)
  end

  local result = {}
  for _, item in ipairs(items) do
    add_item(result, item)
  end

  return result
end,
}