-- statusline

local gl  = require('galaxyline')
local gls = gl.section
local gcolors = require('galaxyline.colors')

local colors = {
  blue = '#5fafd7',
  orange = '#d7875f',
  purple = '#af87d7',
  yellow = '#d7af5f',

  black = '#1c1c1c',
  grey_dim = '#3a3a3a',
  grey_dimmer = '#262626',
  white = '#d0d0d0',
  white_dim = '#bdc0ba',
}

local style = {
  left = {
    sep = ' ',
    sep_hl = {colors.white, colors.black},
  },
  right = {
    hl = {colors.white,colors.grey_dimmer},
    sep = ' ',
    sep_hl = {colors.grey_dim, colors.grey_dimmer},
  }
}

local empty_buffer = function()
  if vim.fn.empty(vim.fn.expand('%:t')) ~= 1 then
    return true
  end
    return false
end

local space = function() return ' ' end

gls.left[1] = {
  ViMode = {
    provider = function()
      local m = vim.fn.mode()
      if m == 'n' then
        gcolors.set_highlight('GalaxyViMode', {colors.white, colors.grey_dim, 'bold'})
      elseif m == 'i' then
        gcolors.set_highlight('GalaxyViMode', {colors.black, colors.blue, 'bold'})
      elseif m == 'v' or m == 'V' or m == 'CTRL-V' then
        gcolors.set_highlight('GalaxyViMode', {colors.black, colors.purple, 'bold'})
      elseif m == 's' or m == 'S' or m == 'CTRL-S' then
        gcolors.set_highlight('GalaxyViMode', {colors.black, '#ff0000', 'bold'})
      elseif m == 'R' or m == 'Rc' or m == 'Rv' or m == 'Rx' then
        gcolors.set_highlight('GalaxyViMode', {colors.black, colors.orange, 'bold'})
      elseif m == 'c' then
        gcolors.set_highlight('GalaxyViMode', {colors.yellow, colors.grey_dim, 'bold,italic'})
      end
      return '  ' .. m:gsub("^%l*$", string.upper) .. ' '
    end,
    separator = style.left.sep,
    separator_highlight = style.left.sep_hl,
  },
}

gls.left[2] = {
  FileName = {
    provider = function()
      local file = vim.fn.expand('%:t')
      if vim.fn.empty(file) == 1 then return '' end
      if vim.bo.readonly then
        return file .. ' '
      end
      if vim.o.modifiable then
        if vim.bo.modified then
          return file .. ' +'
        end
      end
      return file .. ' '
    end,
    condition = empty_buffer,
    highlight = {colors.white,colors.grey_dimmer},
    separator = style.left.sep,
    separator_highlight = style.left.sep_hl,
  }
}

-- ########################################################## --

gls.right[1] = {
  Indent = {
    provider = function()
      local res = vim.o.expandtab and '→' or '␣'
      return res
        .. ' '
        .. 'ts=' .. vim.o.tabstop
        .. ' '
        .. 'sw=' .. vim.o.shiftwidth
    end,
    highlight = style.right.hl,
  },
}

gls.right[2] = {
  BufNum = {
    icon = '% ',
    provider = function()
      local nbufs = #vim.fn.getbufinfo({buflisted = 1})
      local res = vim.fn.bufnr('%') .. '(' .. nbufs .. ')'
      if vim.fn.tabpagenr() > 1 then
        res = res .. ':' .. vim.fn.tabpagenr()
      end
      return res
    end,
    highlight = style.right.hl,
    separator = style.right.sep,
    separator_highlight = style.right.sep_hl,
  },
}

gls.right[3] = {
  LineColumn = {
    icon = ' ',
    provider = 'LineColumn',
    highlight = style.right.hl,
    separator = style.right.sep,
    separator_highlight = style.right.sep_hl,
  },
}

gls.right[4] = {
  LinePercent = {
    provider = 'LinePercent',
    highlight = style.right.hl,
    separator = style.right.sep,
    separator_highlight = style.right.sep_hl,
  }
}

gls.right[5] = {
  BufferType = {
    provider = function() return '  ' .. vim.bo.filetype .. ' ' end,
    highlight = {colors.white,colors.grey_dim,'bold'},
    -- separator = style.right.sep,
    -- separator_highlight = style.right.sep_hl,
  }
}