-- Island of misfit toys.
--- @diagnostic disable: deprecated

local t = require('test.testutil')
local n = require('test.functional.testnvim')()
local Screen = require('test.functional.ui.screen')
local describe, it, before_each = t.describe, t.it, t.before_each
local clear, eval, eq, ok = n.clear, n.eval, t.eq, t.ok
local api, command, fn = n.api, n.command, n.fn
local pcall_err, assert_alive = t.pcall_err, n.assert_alive
local insert, exec, feed = n.insert, n.exec, n.feed
local NIL = vim.NIL

describe('deprecated', function()
  before_each(n.clear)

  describe('nvim_call_atomic', function()
    it('works', function()
      api.nvim_buf_set_lines(0, 0, -1, true, { 'first' })
      local req = {
        { 'nvim_get_current_line', {} },
        { 'nvim_set_current_line', { 'second' } },
      }
      eq({ { 'first', NIL }, NIL }, api.nvim_call_atomic(req))
      eq({ 'second' }, api.nvim_buf_get_lines(0, 0, -1, true))
    end)

    it('allows multiple return values', function()
      local req = {
        { 'nvim_set_var', { 'avar', true } },
        { 'nvim_set_var', { 'bvar', 'string' } },
        { 'nvim_get_var', { 'avar' } },
        { 'nvim_get_var', { 'bvar' } },
      }
      eq({ { NIL, NIL, true, 'string' }, NIL }, api.nvim_call_atomic(req))
    end)

    it('is aborted by errors in call', function()
      local error_types = api.nvim_get_api_info()[2].error_types
      local req = {
        { 'nvim_set_var', { 'one', 1 } },
        { 'nvim_buf_set_lines', {} },
        { 'nvim_set_var', { 'two', 2 } },
      }
      eq({
        { NIL },
        {
          1,
          error_types.Exception.id,
          'Wrong number of arguments: expecting 5 but got 0',
        },
      }, api.nvim_call_atomic(req))
      eq(1, api.nvim_get_var('one'))
      eq(false, pcall(api.nvim_get_var, 'two'))

      -- still returns all previous successful calls
      req = {
        { 'nvim_set_var', { 'avar', 5 } },
        { 'nvim_set_var', { 'bvar', 'string' } },
        { 'nvim_get_var', { 'avar' } },
        { 'nvim_buf_get_lines', { 0, 10, 20, true } },
        { 'nvim_get_var', { 'bvar' } },
      }
      eq(
        { { NIL, NIL, 5 }, { 3, error_types.Validation.id, 'Index out of bounds' } },
        api.nvim_call_atomic(req)
      )

      req = {
        { 'i_am_not_a_method', { 'xx' } },
        { 'nvim_set_var', { 'avar', 10 } },
      }
      eq(
        { {}, { 0, error_types.Exception.id, 'Invalid method: i_am_not_a_method' } },
        api.nvim_call_atomic(req)
      )
      eq(5, api.nvim_get_var('avar'))
    end)

    it('validation', function()
      local req = {
        { 'nvim_set_var', { 'avar', 1 } },
        { 'nvim_set_var' },
        { 'nvim_set_var', { 'avar', 2 } },
      }
      eq("Invalid 'calls' item: expected 2-item Array", pcall_err(api.nvim_call_atomic, req))
      -- call before was done, but not after
      eq(1, api.nvim_get_var('avar'))

      req = {
        { 'nvim_set_var', { 'bvar', { 2, 3 } } },
        12,
      }
      eq("Invalid 'calls' item: expected Array, got Integer", pcall_err(api.nvim_call_atomic, req))
      eq({ 2, 3 }, api.nvim_get_var('bvar'))

      req = {
        { 'nvim_set_current_line', 'little line' },
        { 'nvim_set_var', { 'avar', 3 } },
      }
      eq('Invalid call args: expected Array, got String', pcall_err(api.nvim_call_atomic, req))
      -- call before was done, but not after
      eq(1, api.nvim_get_var('avar'))
      eq({ '' }, api.nvim_buf_get_lines(0, 0, -1, true))
    end)
  end)

  describe('nvim_notify', function()
    it('can notify a info message', function()
      n.api.nvim_notify('hello world', 2, {})
    end)

    it('can be overridden', function()
      n.command('lua vim.notify = function(...) return 42 end')
      t.eq(42, n.api.nvim_exec_lua("return vim.notify('Hello world')", {}))
      n.api.nvim_notify('hello world', 4, {})
    end)
  end)

  describe('nvim_*get_option functions', function()
    it('does not leak memory', function()
      -- String opts caused memory leaks in these functions in Github#32361
      n.exec_lua([[
        vim.api.nvim_get_option('rtp')
        vim.api.nvim_win_get_option(vim.api.nvim_get_current_win(), 'foldmethod')
        vim.api.nvim_buf_get_option(0, 'fileformat')
      ]])
    end)
  end)

  describe('API: highlight', function()
    clear()
    Screen.new() -- initialize Screen.colors

    local expected_rgb = {
      background = Screen.colors.Yellow,
      foreground = Screen.colors.Red,
      special = Screen.colors.Blue,
      bold = true,
    }
    local expected_cterm = {
      background = 10,
      underline = true,
    }
    local expected_rgb2 = {
      background = Screen.colors.Yellow,
      foreground = Screen.colors.Red,
      special = Screen.colors.Blue,
      bold = true,
      italic = true,
      reverse = true,
      underline = true,
      strikethrough = true,
      altfont = true,
      nocombine = true,
    }
    local expected_undercurl = {
      background = Screen.colors.Yellow,
      foreground = Screen.colors.Red,
      special = Screen.colors.Blue,
      undercurl = true,
    }

    before_each(function()
      clear()
      command(
        'hi NewHighlight cterm=underline ctermbg=green guifg=red guibg=yellow guisp=blue gui=bold'
      )
    end)

    it('nvim_get_hl_by_id', function()
      local hl_id = eval("hlID('NewHighlight')")
      eq(expected_cterm, api.nvim_get_hl_by_id(hl_id, false))

      hl_id = eval("hlID('NewHighlight')")
      -- Test valid id.
      eq(expected_rgb, api.nvim_get_hl_by_id(hl_id, true))

      -- Test invalid id.
      eq('Invalid highlight id: 30000', pcall_err(api.nvim_get_hl_by_id, 30000, false))

      -- Test all highlight properties.
      command('hi NewHighlight gui=underline,bold,italic,reverse,strikethrough,altfont,nocombine')
      eq(expected_rgb2, api.nvim_get_hl_by_id(hl_id, true))

      -- Test undercurl
      command('hi NewHighlight gui=undercurl')
      eq(expected_undercurl, api.nvim_get_hl_by_id(hl_id, true))

      -- Test nil argument.
      eq(
        'Wrong type for argument 1 when calling nvim_get_hl_by_id, expecting Integer',
        pcall_err(api.nvim_get_hl_by_id, { nil }, false)
      )

      -- Test 0 argument.
      eq('Invalid highlight id: 0', pcall_err(api.nvim_get_hl_by_id, 0, false))

      -- Test -1 argument.
      eq('Invalid highlight id: -1', pcall_err(api.nvim_get_hl_by_id, -1, false))

      -- Test highlight group without ctermbg value.
      command('hi Normal ctermfg=red ctermbg=yellow')
      command('hi NewConstant ctermfg=green guifg=white guibg=blue')
      hl_id = eval("hlID('NewConstant')")
      eq({ foreground = 10 }, api.nvim_get_hl_by_id(hl_id, false))

      -- Test highlight group without ctermfg value.
      command('hi clear NewConstant')
      command('hi NewConstant ctermbg=Magenta guifg=white guibg=blue')
      eq({ background = 13 }, api.nvim_get_hl_by_id(hl_id, false))

      -- Test highlight group with ctermfg and ctermbg values.
      command('hi clear NewConstant')
      command('hi NewConstant ctermfg=green ctermbg=Magenta guifg=white guibg=blue')
      eq({ foreground = 10, background = 13 }, api.nvim_get_hl_by_id(hl_id, false))
    end)

    it('nvim_get_hl_by_name', function()
      local expected_normal = { background = Screen.colors.Yellow, foreground = Screen.colors.Red }

      -- Test `Normal` default values.
      eq({}, api.nvim_get_hl_by_name('Normal', true))

      eq(expected_cterm, api.nvim_get_hl_by_name('NewHighlight', false))
      eq(expected_rgb, api.nvim_get_hl_by_name('NewHighlight', true))

      -- Test `Normal` modified values.
      command('hi Normal guifg=red guibg=yellow')
      eq(expected_normal, api.nvim_get_hl_by_name('Normal', true))

      -- Test invalid name.
      eq(
        "Invalid highlight name: 'unknown_highlight'",
        pcall_err(api.nvim_get_hl_by_name, 'unknown_highlight', false)
      )

      -- Test nil argument.
      eq(
        'Wrong type for argument 1 when calling nvim_get_hl_by_name, expecting String',
        pcall_err(api.nvim_get_hl_by_name, { nil }, false)
      )

      -- Test empty string argument.
      eq('Invalid highlight name', pcall_err(api.nvim_get_hl_by_name, '', false))

      -- Test "standout" attribute. #8054
      eq({ underline = true }, api.nvim_get_hl_by_name('cursorline', false))
      command(
        'hi CursorLine cterm=standout,underline term=standout,underline gui=standout,underline'
      )
      command('set cursorline')
      eq({ underline = true, standout = true }, api.nvim_get_hl_by_name('cursorline', false))

      -- Test cterm & Normal values. #18024 (tail) & #18980
      -- Ensure Normal, and groups that match Normal return their fg & bg cterm values
      api.nvim_set_hl(0, 'Normal', { ctermfg = 17, ctermbg = 213 })
      api.nvim_set_hl(0, 'NotNormal', { ctermfg = 17, ctermbg = 213, nocombine = true })
      -- Note colors are "cterm" values, not rgb-as-ints
      eq({ foreground = 17, background = 213 }, api.nvim_get_hl_by_name('Normal', false))
      eq(
        { foreground = 17, background = 213, nocombine = true },
        api.nvim_get_hl_by_name('NotNormal', false)
      )
    end)

    it('nvim_get_hl_id_by_name', function()
      -- precondition: use a hl group that does not yet exist
      eq(
        "Invalid highlight name: 'Shrubbery'",
        pcall_err(api.nvim_get_hl_by_name, 'Shrubbery', true)
      )
      eq(0, fn.hlID('Shrubbery'))

      local hl_id = api.nvim_get_hl_id_by_name('Shrubbery')
      ok(hl_id > 0)
      eq(hl_id, fn.hlID('Shrubbery'))

      command('hi Shrubbery guifg=#888888 guibg=#888888')
      eq(
        { foreground = tonumber('0x888888'), background = tonumber('0x888888') },
        api.nvim_get_hl_by_id(hl_id, true)
      )
      eq(
        { foreground = tonumber('0x888888'), background = tonumber('0x888888') },
        api.nvim_get_hl_by_name('Shrubbery', true)
      )
    end)

    it("nvim_buf_add_highlight to other buffer doesn't crash if undo is disabled #12873", function()
      command('vsplit file')
      local err, _ = pcall(api.nvim_set_option_value, 'undofile', false, { buf = 1 })
      eq(true, err)
      err, _ = pcall(api.nvim_set_option_value, 'undolevels', -1, { buf = 1 })
      eq(true, err)
      err, _ = pcall(api.nvim_buf_add_highlight, 1, -1, 'Question', 0, 0, -1)
      eq(true, err)
      assert_alive()
    end)
  end)

  describe('{get,set}_height', function()
    it('works', function()
      command('vsplit')
      eq(
        api.nvim_win_get_height(api.nvim_list_wins()[2]),
        api.nvim_win_get_height(api.nvim_list_wins()[1])
      )
      api.nvim_set_current_win(api.nvim_list_wins()[2])
      command('split')
      eq(
        api.nvim_win_get_height(api.nvim_list_wins()[2]),
        math.floor(api.nvim_win_get_height(api.nvim_list_wins()[1]) / 2)
      )
      api.nvim_win_set_height(api.nvim_list_wins()[2], 2)
      eq(2, api.nvim_win_get_height(api.nvim_list_wins()[2]))
    end)

    it('failure modes', function()
      command('split')
      eq('Invalid window id: 999999', pcall_err(api.nvim_win_set_height, 999999, 10))
      eq(
        'Wrong type for argument 2 when calling nvim_win_set_height, expecting Integer',
        pcall_err(api.nvim_win_set_height, 0, 0.9)
      )
    end)

    it('correctly handles height=1', function()
      command('split')
      api.nvim_set_current_win(api.nvim_list_wins()[1])
      api.nvim_win_set_height(api.nvim_list_wins()[2], 1)
      eq(1, api.nvim_win_get_height(api.nvim_list_wins()[2]))
    end)

    it('correctly handles height=1 with a winbar', function()
      command('set winbar=foobar')
      command('set winminheight=0')
      command('split')
      api.nvim_set_current_win(api.nvim_list_wins()[1])
      api.nvim_win_set_height(api.nvim_list_wins()[2], 1)
      eq(1, api.nvim_win_get_height(api.nvim_list_wins()[2]))
    end)

    it('do not cause ml_get errors with foldmethod=expr #19989', function()
      insert([[
        aaaaa
        bbbbb
        ccccc]])
      command('set foldmethod=expr')
      exec([[
        new
        let w = nvim_get_current_win()
        wincmd w
        call nvim_win_set_height(w, 5)
      ]])
      feed('l')
      eq('', api.nvim_get_vvar('errmsg'))
    end)
  end)

  describe('{get,set}_width', function()
    it('works', function()
      command('split')
      eq(
        api.nvim_win_get_width(api.nvim_list_wins()[2]),
        api.nvim_win_get_width(api.nvim_list_wins()[1])
      )
      api.nvim_set_current_win(api.nvim_list_wins()[2])
      command('vsplit')
      eq(
        api.nvim_win_get_width(api.nvim_list_wins()[2]),
        math.floor(api.nvim_win_get_width(api.nvim_list_wins()[1]) / 2)
      )
      api.nvim_win_set_width(api.nvim_list_wins()[2], 2)
      eq(2, api.nvim_win_get_width(api.nvim_list_wins()[2]))
    end)

    it('failure modes', function()
      command('vsplit')
      eq('Invalid window id: 999999', pcall_err(api.nvim_win_set_width, 999999, 10))
      eq(
        'Wrong type for argument 2 when calling nvim_win_set_width, expecting Integer',
        pcall_err(api.nvim_win_set_width, 0, 0.9)
      )
    end)

    it('do not cause ml_get errors with foldmethod=expr #19989', function()
      insert([[
        aaaaa
        bbbbb
        ccccc]])
      command('set foldmethod=expr')
      exec([[
        vnew
        let w = nvim_get_current_win()
        wincmd w
        call nvim_win_set_width(w, 5)
      ]])
      feed('l')
      eq('', api.nvim_get_vvar('errmsg'))
    end)
  end)
end)