110 lines
3.6 KiB
TypeScript
110 lines
3.6 KiB
TypeScript
/**
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* 平台管理 Composable
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* 提供当前站点启用的音乐平台和排序顺序
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*/
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import { ref } from 'vue'
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import { useSiteConfig } from './useSiteConfig'
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import { DEFAULT_PLATFORMS } from '~/utils/platforms'
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const cache = {
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enabledPlatforms: ref<string[]>([...DEFAULT_PLATFORMS]),
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platformOrder: ref<string[]>([...DEFAULT_PLATFORMS]),
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loaded: ref(false),
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// 加载中的 promise，避免并发重复请求
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inflight: null as Promise<void> | null
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}
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/** 安全解析平台数组，解析失败时回退默认值 */
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const parsePlatformArray = (value: unknown): string[] => {
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try {
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const arr = typeof value === 'string' ? JSON.parse(value) : value
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if (!Array.isArray(arr)) return [...DEFAULT_PLATFORMS]
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const valid = arr.filter((p: unknown) => (DEFAULT_PLATFORMS as readonly string[]).includes(p as string))
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return valid.length > 0 ? (valid as string[]) : [...DEFAULT_PLATFORMS]
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} catch {
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return [...DEFAULT_PLATFORMS]
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}
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}
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export const usePlatformConfig = () => {
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const enabledPlatforms = cache.enabledPlatforms
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const platformOrder = cache.platformOrder
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const loaded = cache.loaded
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/**
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* 加载平台配置
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* @param forceApi 强制走 API 请求（跳过 useSiteConfig 优化），供管理页保存后刷新使用
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*/
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const doLoadPlatformConfig = async (forceApi = false) => {
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// 优先复用 useSiteConfig 已加载的数据（/api/site-config 已含平台字段），避免重复请求
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if (!forceApi) {
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try {
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const { siteConfig, isLoaded } = useSiteConfig()
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if (isLoaded.value && siteConfig.value?.enabledPlatforms) {
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enabledPlatforms.value = parsePlatformArray(siteConfig.value.enabledPlatforms)
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platformOrder.value = parsePlatformArray(siteConfig.value.platformOrder)
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loaded.value = true
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return
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}
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} catch {
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// useSiteConfig 数据未就绪，回退到独立 API 请求
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}
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}
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try {
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const res = await $fetch('/api/platform-config')
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enabledPlatforms.value = parsePlatformArray(res.enabledPlatforms)
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platformOrder.value = parsePlatformArray(res.platformOrder)
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loaded.value = true
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} catch {
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// SSR 阶段 $fetch 不可用，保持 loaded=false 让客户端重试
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if (import.meta.server) return
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enabledPlatforms.value = [...DEFAULT_PLATFORMS]
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platformOrder.value = [...DEFAULT_PLATFORMS]
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loaded.value = true
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}
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}
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const loadPlatformConfig = async () => {
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if (import.meta.server) return
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if (loaded.value) return
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// 已有加载请求进行中则直接复用，避免并发重复请求
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if (cache.inflight) return cache.inflight
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cache.inflight = doLoadPlatformConfig().finally(() => {
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cache.inflight = null
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})
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await cache.inflight
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}
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/** 重置加载状态并重新获取配置（跳过 useSiteConfig 优化，确保读到最新数据），供管理员保存后刷新使用 */
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const refreshPlatformConfig = async () => {
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if (import.meta.server) return
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loaded.value = false
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await doLoadPlatformConfig(true)
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}
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/**
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* 获取启用的平台列表（按配置的排序顺序）
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*/
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const getAvailablePlatforms = (): string[] => {
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return platformOrder.value.filter((p) => enabledPlatforms.value.includes(p))
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}
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/**
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* 判断平台是否可用
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*/
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const isPlatformEnabled = (platform: string): boolean => {
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return enabledPlatforms.value.includes(platform)
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}
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return {
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enabledPlatforms,
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platformOrder,
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loaded,
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loadPlatformConfig,
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refreshPlatformConfig,
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getAvailablePlatforms,
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isPlatformEnabled
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}
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} |