local alpha = require 'alpha'
local dashboard = require 'alpha.themes.dashboard'

_Gopts = {
  position = 'center',
  hl = 'Type',
  wrap = 'overflow',
}

-- DASHBOARD HEADER

local function getGreeting()
  local tableTime = os.date '*t'
  local datetime = os.date ' %Y-%m-%d-%A   %H:%M:%S '
  local hour = tableTime.hour
  local greetingsTable = {
    [1] = '  Sleep well',
    [2] = '  Good morning',
    [3] = '  Good afternoon',
    [4] = '  Good evening',
    [5] = '󰖔  Good night',
  }
  local greetingIndex = 0
  if hour == 23 or hour < 7 then
    greetingIndex = 1
  elseif hour < 12 then
    greetingIndex = 2
  elseif hour >= 12 and hour < 18 then
    greetingIndex = 3
  elseif hour >= 18 and hour < 21 then
    greetingIndex = 4
  elseif hour >= 21 then
    greetingIndex = 5
  end
  return datetime .. '  ' .. greetingsTable[greetingIndex]
end

local logo = [[

                                              
       ████ ██████           █████      ██
      ███████████             █████ 
      █████████ ███████████████████ ███   ███████████
     █████████  ███    █████████████ █████ ██████████████
    █████████ ██████████ █████████ █████ █████ ████ █████
  ███████████ ███    ███ █████████ █████ █████ ████ █████
 ██████  █████████████████████ ████ █████ █████ ████ ██████

      ]]

local greeting = getGreeting()
local marginBottom = 0

-- Split logo into lines
local logoWidth = 0
for line in logo:gmatch '[^\n]+' do
  logoWidth = math.max(logoWidth, #line / 2)
end
logoWidth = 75       -- code above does not work with utf8 strings in lua 5.1

-- Calculate padding for centering the greeting
local greetingWidth = #greeting - 3
local padding = math.floor((logoWidth - greetingWidth) / 2)
-- Generate spaces for padding
local paddedGreeting = string.rep(' ', padding) .. greeting


local userName = "You work as '" .. vim.env.USER .. "'."

-- Calculate padding for centering the username
local userNameWidth = #userName
local padding = math.floor((logoWidth - userNameWidth) / 2)
-- Generate spaces for padding
local userNamePadded = string.rep(' ', padding) .. userName


-- Add margin lines below the padded greeting
local margin = string.rep('\n', marginBottom * 5)

-- Concatenate logo, padded greeting, and margin
local adjustedLogo = logo .. '\n' .. paddedGreeting .. '\n\n' .. userNamePadded .. '\n' .. margin
dashboard.section.header.val = vim.split(adjustedLogo, '\n')

dashboard.section.buttons.val = {
  dashboard.button('d', '  Diary Entry', '<cmd>Diary<CR>'),
  dashboard.button('n', '  New file', ':ene <BAR> startinsert <CR>'),
  dashboard.button('s', '  Settings', '<cmd>WorkspacesOpen config-nvim<CR>'),
  dashboard.button('u', '󱐥  Update plugins', '<cmd>Lazy update<CR>'),
  dashboard.button('w', '  Workspaces', '<cmd>WorkspacesOpen<CR>'),
  dashboard.button('q', '󰤆  Quit', '<cmd>qa<CR>'),
}

-- dashboard.section.footer.val = greeting

vim.api.nvim_create_autocmd('User', {
  pattern = 'LazyVimStarted',
  desc = 'Add Alpha dashboard footer',
  once = true,
  callback = function()
    local stats = require('lazy').stats()
    local ms = math.floor(stats.startuptime * 100 + 0.5) / 100
    dashboard.section.footer.val = { ' ', ' ', ' ', ' Loaded ' .. stats.count .. ' plugins  in ' .. ms .. ' ms ' }
    dashboard.section.header.opts.hl = 'DashboardFooter'
    pcall(vim.cmd.AlphaRedraw)
  end,
})

dashboard.opts.opts.noautocmd = true
alpha.setup(dashboard.opts)