Plug 'MunifTanjim/nui.nvim'

local Popup = require("nui.popup")
local Layout = require("nui.layout")
local popup_one, popup_two = Popup({
  enter = true,
  border = "single",
}), Popup({
  border = "double",
})
local layout = Layout(
  {
    position = "50%",
    size = {
      width = 80,
      height = "60%",
    },
  },
  Layout.Box({
    Layout.Box(popup_one, { size = "40%" }),
    Layout.Box(popup_two, { size = "60%" }),
  }, { dir = "row" })
)
local current_dir = "row"
popup_one:map("n", "r", function()
  if current_dir == "col" then
    layout:update(Layout.Box({
      Layout.Box(popup_one, { size = "40%" }),
      Layout.Box(popup_two, { size = "60%" }),
    }, { dir = "row" }))
    current_dir = "row"
  else
    layout:update(Layout.Box({
      Layout.Box(popup_two, { size = "60%" }),
      Layout.Box(popup_one, { size = "40%" }),
    }, { dir = "col" }))
    current_dir = "col"
  end
end, {})
layout:mount()

local Popup = require("nui.popup")
local event = require("nui.utils.autocmd").event
local popup = Popup({
  enter = true,
  focusable = true,
  border = {
    style = "rounded",
  },
  position = "50%",
  size = {
    width = "80%",
    height = "60%",
  },
})
-- mount/open the component
popup:mount()
-- unmount component when cursor leaves buffer
popup:on(event.BufLeave, function()
  popup:unmount()
end)
-- set content
vim.api.nvim_buf_set_lines(popup.bufnr, 0, 1, false, { "Hello World" })

local Input = require("nui.input")
local event = require("nui.utils.autocmd").event
local input = Input({
  position = "50%",
  size = {
    width = 20,
  },
  border = {
    style = "single",
    text = {
      top = "[Howdy?]",
      top_align = "center",
    },
  },
  win_options = {
    winhighlight = "Normal:Normal,FloatBorder:Normal",
  },
}, {
  prompt = "> ",
  default_value = "Hello",
  on_close = function()
    print("Input Closed!")
  end,
  on_submit = function(value)
    print("Input Submitted: " .. value)
  end,
})
-- mount/open the component
input:mount()
-- unmount component when cursor leaves buffer
input:on(event.BufLeave, function()
  input:unmount()
end)

local Menu = require("nui.menu")
local event = require("nui.utils.autocmd").event
local menu = Menu({
  position = "50%",
  size = {
    width = 25,
    height = 5,
  },
  border = {
    style = "single",
    text = {
      top = "[Choose-an-Element]",
      top_align = "center",
    },
  },
  win_options = {
    winhighlight = "Normal:Normal,FloatBorder:Normal",
  },
}, {
  lines = {
    Menu.item("Hydrogen (H)"),
    Menu.item("Carbon (C)"),
    Menu.item("Nitrogen (N)"),
    Menu.separator("Noble-Gases", {
      char = "-",
      text_align = "right",
    }),
    Menu.item("Helium (He)"),
    Menu.item("Neon (Ne)"),
    Menu.item("Argon (Ar)"),
  },
  max_width = 20,
  keymap = {
    focus_next = { "j", "<Down>", "<Tab>" },
    focus_prev = { "k", "<Up>", "<S-Tab>" },
    close = { "<Esc>", "<C-c>" },
    submit = { "<CR>", "<Space>" },
  },
  on_close = function()
    print("Menu Closed!")
  end,
  on_submit = function(item)
    print("Menu Submitted: ", item.text)
  end,
})
-- mount the component
menu:mount()

local Split = require("nui.split")
local event = require("nui.utils.autocmd").event
local split = Split({
  relative = "editor",
  position = "bottom",
  size = "20%",
})
-- mount/open the component
split:mount()
-- unmount component when cursor leaves buffer
split:on(event.BufLeave, function()
  split:unmount()
end)

local Timer = Popup:extend("Timer")
function Timer:init(popup_options)
  local options = vim.tbl_deep_extend("force", popup_options or {}, {
    border = "double",
    focusable = false,
    position = { row = 0, col = "100%" },
    size = { width = 10, height = 1 },
    win_options = {
      winhighlight = "Normal:Normal,FloatBorder:SpecialChar",
    },
  })
  Timer.super.init(self, options)
end
function Timer:countdown(time, step, format)
  local function draw_content(text)
    local gap_width = 10 - vim.api.nvim_strwidth(text)
    vim.api.nvim_buf_set_lines(self.bufnr, 0, -1, false, {
      string.format(
        "%s%s%s",
        string.rep(" ", math.floor(gap_width / 2)),
        text,
        string.rep(" ", math.ceil(gap_width / 2))
      ),
    })
  end
  self:mount()
  local remaining_time = time
  draw_content(format(remaining_time))
  vim.fn.timer_start(step, function()
    remaining_time = remaining_time - step
    draw_content(format(remaining_time))
    if remaining_time <= 0 then
      self:unmount()
    end
  end, { ["repeat"] = math.ceil(remaining_time / step) })
end
local timer = Timer()
timer:countdown(10000, 1000, function(time)
  return tostring(time / 1000) .. "s"
end)