local lsp_status = require('lsp-status')
local gl         = require('galaxyline')
local gls        = gl.section

local colors = {
  line_bg  = '#21242b',
  bg       = '#000000',
  fg       = '#c0c0c0',
  yellow   = '#fabd2f',
  cyan     = '#008080',
  darkblue = '#081633',
  green    = '#afd700',
  orange   = '#FF8800',
  purple   = '#5d4d7a',
  magenta  = '#c678dd',
  blue     = '#51afef',
  red      = '#ec5f67'
}

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

local checkwidth = function()
  local squeeze_width  = vim.fn.winwidth(0) / 2
  if squeeze_width > 40 then
    return true
  end
  return false
end

local function find_git_root()
  local path = vim.fn.expand('%:p:h')
  local get_git_dir = require('galaxyline.provider_vcs').get_git_dir
  return get_git_dir(path)
end

gls.left[1] = {
  FirstElement = {
    provider  = function() return '▋' end,
    highlight = { colors.bg, colors.line_bg }
  },
}
gls.left[2] = {
  ViMode = {
    provider = function()
      local mode_color = {
        n = colors.magenta, i = colors.green, v = colors.blue, [''] = colors.blue, V = colors.blue,
        c = colors.red, no = colors.magenta, s = colors.orange, S = colors.orange,
        [''] = colors.orange, ic = colors.yellow, R = colors.purple, Rv = colors.purple,
        cv = colors.red, ce = colors.red, r = colors.cyan, rm = colors.cyan, ['r?'] = colors.cyan,
        ['!']  = colors.red, t = colors.red
      }
      vim.api.nvim_command('hi GalaxyViMode guifg='..mode_color[vim.fn.mode()])
      return '  '
    end,
    highlight = { colors.red, colors.line_bg, 'bold' },
  },
}
gls.left[3] = {
  FileIcon = {
    provider  = 'FileIcon',
    condition = buffer_not_empty,
    highlight = { require('galaxyline.provider_fileinfo').get_file_icon_color, colors.line_bg },
  },
}
gls.left[4] = {
  FileName = {
    provider            = {'FileName'},
    condition           = buffer_not_empty,
    highlight = { colors.fg, colors.line_bg, 'bold' }
  }
}
gls.left[5] = {
  GitIcon = {
    provider  = function() return '  ' end,
    condition = find_git_root,
    highlight = { colors.orange, colors.line_bg },
  }
}
gls.left[6] = {
  GitBranch = {
    provider  = 'GitBranch',
    condition = find_git_root,
    highlight = { colors.fg, colors.line_bg, 'bold' },
  }
}
gls.left[7] = {
  DiffAdd = {
    provider  = 'DiffAdd',
    condition = checkwidth and find_git_root,
    icon      = ' ',
    highlight = { colors.green, colors.line_bg },
  }
}
gls.left[8] = {
  DiffModified = {
    provider  = 'DiffModified',
    condition = checkwidth and find_git_root,
    icon      = ' ',
    highlight = { colors.orange, colors.line_bg },
  }
}
gls.left[9] = {
  DiffRemove = {
    provider  = 'DiffRemove',
    condition = checkwidth and find_git_root,
    icon      = ' ',
    highlight = { colors.red, colors.line_bg },
  }
}
gls.left[10] = {
  LeftEnd = {
    provider            = function() return '' end,
    separator           = '',
    separator_highlight = { colors.bg, colors.line_bg },
    highlight           = { colors.line_bg, colors.line_bg }
  }
}
gls.left[11] = {
  DiagnosticError = {
    provider  = 'DiagnosticError',
    icon      = '  ',
    highlight = { colors.red, colors.bg }
  }
}
gls.left[12] = {
  Space = {
    provider = function () return ' ' end
  }
}
gls.left[13] = {
  DiagnosticWarn = {
    provider  = 'DiagnosticWarn',
    icon      = '  ',
    highlight = { colors.blue, colors.bg },
  }
}
gls.left[14] = {
  LspStatus = {
    provider = function()
      if #vim.lsp.buf_get_clients() > 0 then
        return lsp_status.status()
      end
    end,
    highlight = { colors.orange, colors.bg,'bold' },
  }
}

gls.right[1]= {
  FileFormat = {
    provider            = 'FileFormat',
    separator           = '',
    separator_highlight = { colors.bg, colors.line_bg },
    highlight           = { colors.fg, colors.line_bg  },
  }
}
gls.right[2] = {
  LineInfo = {
    provider            = 'LineColumn',
    separator           = ' | ',
    separator_highlight = { colors.blue, colors.line_bg },
    highlight           = { colors.fg, colors.line_bg },
  },
}
gls.right[3] = {
  PerCent = {
    provider            = 'LinePercent',
    separator           = '',
    separator_highlight = { colors.line_bg, colors.line_bg },
    highlight           = { colors.fg, colors.darkblue },
  }
}

gls.short_line_left[1] = {
  BufferType = {
    provider            = 'FileTypeName',
    separator           = ' ',
    separator_highlight = { colors.purple, colors.bg },
    highlight           = { colors.fg, colors.purple }
  }
}
gls.short_line_left[2] = {
  WindowNumber = {
    provider            = function() return vim.fn.winnr() end,
    separator           = '',
    separator_highlight = { colors.purple, colors.bg },
    highlight           = { colors.red, colors.bg }
  }
}

gls.short_line_right[1] = {
  BufferIcon = {
    provider            = 'BufferIcon',
    separator           = '',
    separator_highlight = { colors.purple, colors.bg },
    highlight           = { colors.fg, colors.purple }
  }
}