local M = {}
local uv = vim.loop

local config = require('chatgpt_nvim.config')

local function ensure_dir(path)
  local st = uv.fs_stat(path)
  if st and st.type == 'directory' then
    return true
  end
  local parent = path:match("(.*)/")
  if parent and parent ~= "" then
    ensure_dir(parent)
  end
  uv.fs_mkdir(path, 511)
  return true
end

function M.get_clipboard_content()
  local conf = config.load()
  local content = vim.fn.getreg('+')
  if conf.debug then
    vim.api.nvim_out_write("[chatgpt_nvim:handler] Clipboard content length: " .. #content .. "\n")
  end
  return content
end

function M.write_file(filepath, content)
  local conf = config.load()
  local dir = filepath:match("(.*)/")
  if dir and dir ~= "" then
    ensure_dir(dir)
  end
  local fd = uv.fs_open(filepath, "w", 438)
  if not fd then
    vim.api.nvim_err_writeln("Could not open file for writing: " .. filepath)
    if conf.debug then
      vim.api.nvim_out_write("[chatgpt_nvim:handler] Failed to open file for writing: " .. filepath .. "\n")
    end
    return
  end
  uv.fs_write(fd, content, -1)
  uv.fs_close(fd)
  if conf.debug then
    vim.api.nvim_out_write("[chatgpt_nvim:handler] Successfully wrote file: " .. filepath .. "\n")
  end
end

function M.delete_file(filepath)
  local conf = config.load()
  local st = uv.fs_stat(filepath)
  if st then
    local success, err = uv.fs_unlink(filepath)
    if not success then
      vim.api.nvim_err_writeln("Could not delete file: " .. filepath .. " - " .. (err or "unknown error"))
      if conf.debug then
        vim.api.nvim_out_write("[chatgpt_nvim:handler] Failed to delete file: " .. filepath .. "\n")
      end
    else
      if conf.debug then
        vim.api.nvim_out_write("[chatgpt_nvim:handler] Deleted file: " .. filepath .. "\n")
      end
    end
  else
    vim.api.nvim_err_writeln("File not found, cannot delete: " .. filepath)
    if conf.debug then
      vim.api.nvim_out_write("[chatgpt_nvim:handler] File not found for deletion: " .. filepath .. "\n")
    end
  end
end

function M.finish()
  print("Finished processing files.")
end

return M