local plenary = require'plenary'
local popup = plenary.popup

local presser = {}
windows = {}

local api = vim.api

local function _iter_table_dump( arr )
  for k, v in pairs(arr) do
    print("Table:", k, v)
  end
end

local escape_chars = function ( text )
  return string.gsub(text, "[%(|%)|\\|%[|%]|%-|%{%}|%?|%+|%*|%^|%$|%.]", {
    ["\\"] = "\\\\",
    ["-"] = "\\-",
    ["("] = "\\(",
    [")"] = "\\)",
    ["["] = "\\[",
    ["]"] = "\\]",
    ["{"] = "\\{",
    ["}"] = "\\}",
    ["?"] = "\\?",
    ["+"] = "\\+",
    ["*"] = "\\*",
    ["^"] = "\\^",
    ["$"] = "\\$",
    ["."] = "\\.",
  })
end

-- :@dev: clean the text once it has been fetched from buffer
local function _clean_buf ( text )
  if not type(text) == "string" or text == nil then
    print("[DEBUG - _clean_buf]  Given input is not of type string.")
    return
  end

  return escape_chars( text )
    :match( "^%s*(.-)%s*$" )
end

function presser.destroy_windows()
--  api.nvim_win_close(0, true)

  for k,v in pairs(windows) do
--    api.nvim_win_close(v, true)
    print(k, v)
    table.remove(windows, k)
  end
end

function presser.find_replace()
  local padding = 128
  local buf_width = api.nvim_win_get_width(0) - padding

  local opts = {
      minwidth = buf_width,
      borderchars = { "─", "│", "─", "│", "╭", "╮", "╯", "╰" },
  }

  local win_title_opts = { 
    height = 3,
    minwidth = buf_width + 2,
    line = 9,
    padding = { 1, 1, 1, 1 },
  }

  if not placeholder == nil then
      vim.tbl_extend( "force", opts, { padding = { 0, buf_padding, 0, } } )
  end

  local win_title = popup.create( { "Find & Replace" }, win_title_opts )
  local win_b = popup.create({ "" }, vim.tbl_extend("force", opts, { title = "Replace", line = 16 }))
  local win_t = popup.create({ "" }, vim.tbl_extend("force", opts, { title = "Find", line = 13 }))
  print(win_t, win_b)
  
  table.insert(windows, win_t)
  table.insert(windows, win_b)
  table.insert(windows, win_title)

  --api.nvim_feedkeys(api.nvim_replace_termcodes("<ESC>A", true, false, true), 'n', true)

  local win_t_buf = api.nvim_win_get_buf(win_t)
  local win_b_buf = api.nvim_win_get_buf(win_b)
  -- :lua require('presser').destroy_windows()<CR>
  api.nvim_buf_set_keymap(win_t_buf, "n", "<ESC>", ":lua require('presser').destroy_windows()<CR>", { noremap = true, silent = true })
  api.nvim_buf_set_keymap(win_b_buf, "n", "<ESC>", ":close!<CR>", { noremap = true, silent = true })
  print(win_t_buf)

  local text = api.nvim_buf_get_lines(win_t_buf, 0, -1, false)
  print(_clean_buf(text[1]))
  
end

presser.find_replace()

return presser