local build = {}

function build.dir(opts)
  print(vim.inspect(opts))
  local num_fargs = table.maxn(opts.fargs)
  local dir = nil

  if num_fargs == 0 then -- Find build directories
    local dirs = build.list_dirs()
    local num_dirs = table.maxn(dirs)

    if num_dirs == 0 then
      vim.cmd.echoerr('no build directories found')
    elseif num_dirs == 1 then
      -- One build directory found, use it
      dir = dirs[1]
    else
      -- Multiple build directories found, select one
      require("telescope.pickers.multi") {
        prompt_title = "Select from the list",
        results_title = "Options",
        sorting_strategy = "ascending",
        layout_strategy = "vertical",
        winblend = 10,
        border = true,
        previewer = false, -- Set to true if you want a preview window
        results = dir,
      }
    end

  end

  if not dir then
    return
  end

  -- TODO: Set build directory
  -- TODO: Post-process compile_commands.json with compdb
end

function build.run(opts)
  print(vim.inspect(opts))
end

function build.list_dirs()
  local dirs = vim.fn.globpath('.', 'build*')
  dirs = vim.fn.substitute(dirs, '\\.\\/', '', 'g')
  return vim.fn.split(dirs)
end

function build.list_targets()
  return {}
end

function build.create_commands()
  local buffer = vim.api.nvim_get_current_buf()

  -- Create :BuildDir command
  vim.api.nvim_buf_create_user_command(buffer, 'BuildDir', build.dir, {
    bang = true, nargs = '?', complete = build.list_dirs,
  })

  -- Create :Build command
  vim.api.nvim_buf_create_user_command(buffer, 'Build', build.run, {
    bang = true, nargs = '*', complete = build.list_targets,
  })
end

return build