require('plenary.async').tests.add_to_env()
local oil = require('oil')
local test_util = require('tests.test_util')

a.describe('oil select', function()
  after_each(function()
    test_util.reset_editor()
  end)

  a.it('opens file under cursor', function()
    test_util.oil_open()
    -- Go to the bottom, so the cursor is not on a directory
    vim.cmd.normal({ args = { 'G' } })
    a.wrap(oil.select, 2)()
    assert.equals(1, #vim.api.nvim_tabpage_list_wins(0))
    assert.not_equals('oil', vim.bo.filetype)
  end)

  a.it('opens file in new tab', function()
    test_util.oil_open()
    local tabpage = vim.api.nvim_get_current_tabpage()
    a.wrap(oil.select, 2)({ tab = true })
    assert.equals(2, #vim.api.nvim_list_tabpages())
    assert.equals(1, #vim.api.nvim_tabpage_list_wins(0))
    assert.not_equals(tabpage, vim.api.nvim_get_current_tabpage())
  end)

  a.it('opens file in new split', function()
    test_util.oil_open()
    local winid = vim.api.nvim_get_current_win()
    a.wrap(oil.select, 2)({ vertical = true })
    assert.equals(1, #vim.api.nvim_list_tabpages())
    assert.equals(2, #vim.api.nvim_tabpage_list_wins(0))
    assert.not_equals(winid, vim.api.nvim_get_current_win())
  end)

  a.it('opens multiple files in new tabs', function()
    test_util.oil_open()
    vim.api.nvim_feedkeys('Vj', 'x', true)
    local tabpage = vim.api.nvim_get_current_tabpage()
    a.wrap(oil.select, 2)({ tab = true })
    assert.equals(3, #vim.api.nvim_list_tabpages())
    assert.equals(1, #vim.api.nvim_tabpage_list_wins(0))
    assert.not_equals(tabpage, vim.api.nvim_get_current_tabpage())
  end)

  a.it('opens multiple files in new splits', function()
    test_util.oil_open()
    vim.api.nvim_feedkeys('Vj', 'x', true)
    local winid = vim.api.nvim_get_current_win()
    a.wrap(oil.select, 2)({ vertical = true })
    assert.equals(1, #vim.api.nvim_list_tabpages())
    assert.equals(3, #vim.api.nvim_tabpage_list_wins(0))
    assert.not_equals(winid, vim.api.nvim_get_current_win())
  end)

  a.describe('close after open', function()
    a.it('same window', function()
      vim.cmd.edit({ args = { 'foo' } })
      local bufnr = vim.api.nvim_get_current_buf()
      test_util.oil_open()
      -- Go to the bottom, so the cursor is not on a directory
      vim.cmd.normal({ args = { 'G' } })
      a.wrap(oil.select, 2)({ close = true })
      assert.equals(1, #vim.api.nvim_tabpage_list_wins(0))
      -- This one we actually don't expect the buffer to be the same as the initial buffer, because
      -- we opened a file
      assert.not_equals(bufnr, vim.api.nvim_get_current_buf())
      assert.not_equals('oil', vim.bo.filetype)
    end)

    a.it('split', function()
      vim.cmd.edit({ args = { 'foo' } })
      local bufnr = vim.api.nvim_get_current_buf()
      local winid = vim.api.nvim_get_current_win()
      test_util.oil_open()
      a.wrap(oil.select, 2)({ vertical = true, close = true })
      assert.equals(2, #vim.api.nvim_tabpage_list_wins(0))
      assert.equals(bufnr, vim.api.nvim_win_get_buf(winid))
    end)

    a.it('tab', function()
      vim.cmd.edit({ args = { 'foo' } })
      local bufnr = vim.api.nvim_get_current_buf()
      local tabpage = vim.api.nvim_get_current_tabpage()
      test_util.oil_open()
      a.wrap(oil.select, 2)({ tab = true, close = true })
      assert.equals(1, #vim.api.nvim_tabpage_list_wins(0))
      assert.equals(2, #vim.api.nvim_list_tabpages())
      vim.api.nvim_set_current_tabpage(tabpage)
      assert.equals(bufnr, vim.api.nvim_get_current_buf())
    end)
  end)
end)