'use strict'

const assert = require('node:assert/strict')
const path = require('node:path')
const test = require('node:test')

const { APP_DIR_NAME, serverExeName, xdgDataHome, xdgConfigHome } = require('./platform')

// 用绝对路径字符串拼测试目录，避免依赖运行平台的盘符写法
const HOME = path.resolve('/home/operator')
const XDG_DATA = path.resolve('/xdg/data')
const XDG_CONFIG = path.resolve('/xdg/config')

test('目录名两个平台一致，只有它上面那一级不同', () => {
  assert.equal(APP_DIR_NAME, 'ScoreboardConsole')
})

test('服务端可执行文件名按平台取：Windows 带 .exe，Linux 没有后缀', () => {
  assert.equal(serverExeName('win32'), 'scoreboard.exe')
  assert.equal(serverExeName('linux'), 'scoreboard')
  // 不传平台时按 Windows 解析：这是这些纯函数改动前就有的口径
  assert.equal(serverExeName(), 'scoreboard.exe')
})

test('Linux 用户数据基座：$XDG_DATA_HOME 优先，缺省用 ~/.local/share', () => {
  assert.equal(xdgDataHome({ XDG_DATA_HOME: XDG_DATA, HOME }), XDG_DATA)
  assert.equal(xdgDataHome({ HOME }), path.join(HOME, '.local', 'share'))
  // 空串与纯空格都算「没设」，否则会拼出一个以空格命名的目录
  assert.equal(xdgDataHome({ XDG_DATA_HOME: '', HOME }), path.join(HOME, '.local', 'share'))
  assert.equal(xdgDataHome({ XDG_DATA_HOME: '   ', HOME }), path.join(HOME, '.local', 'share'))
})

test('$XDG_DATA_HOME 是相对路径时按规范忽略（规范要求它必须是绝对路径）', () => {
  assert.equal(xdgDataHome({ XDG_DATA_HOME: 'xdg-data', HOME }), path.join(HOME, '.local', 'share'))
})

test('拿不到 $XDG_DATA_HOME 也拿不到 $HOME 时返回 null，由调用方回落安装目录', () => {
  assert.equal(xdgDataHome({}), null)
  assert.equal(xdgDataHome(undefined), null)
  // HOME 是相对路径同样不认：拼出来会是个「相对当前目录」的路径，比没有更糟
  assert.equal(xdgDataHome({ HOME: 'home/operator' }), null)
})

test('自启目录的基座 $XDG_CONFIG_HOME 是同一套规格', () => {
  assert.equal(xdgConfigHome({ XDG_CONFIG_HOME: XDG_CONFIG, HOME }), XDG_CONFIG)
  assert.equal(xdgConfigHome({ HOME }), path.join(HOME, '.config'))
  assert.equal(xdgConfigHome({ XDG_CONFIG_HOME: 'cfg', HOME }), path.join(HOME, '.config'))
  assert.equal(xdgConfigHome({}), null)
})