update at 2026-02-09 16:09:44

miniprogram/utils/mp/font-loader.js

@@ -1,6 +1,7 @@
 const { request, downloadFile, readFile } = require('./wx-promisify')
 
 const localFonts = require('../../assets/fonts')
+const localDefaultConfig = require('../../assets/default')
 
 const fontBufferCache = new Map()
 const MAX_FONT_CACHE = 4
@@ -44,6 +45,70 @@ function normalizeManifest(fonts, baseUrl) {
     .filter((item) => item.url)
 }
 
+function normalizeDefaultConfig(config) {
+  const payload = config && typeof config === 'object' ? config : {}
+  const selectedRaw = Array.isArray(payload.selectedFontIds)
+    ? payload.selectedFontIds
+    : (Array.isArray(payload.selectedFonts) ? payload.selectedFonts : [])
+  const favoriteRaw = Array.isArray(payload.favoriteFontIds)
+    ? payload.favoriteFontIds
+    : (Array.isArray(payload.favoriteFonts) ? payload.favoriteFonts : [])
+
+  const selectedFontIds = Array.from(
+    new Set(
+      selectedRaw
+        .map((item) => String(item || '').trim())
+        .filter(Boolean),
+    ),
+  )
+  const favoriteFontIds = Array.from(
+    new Set(
+      favoriteRaw
+        .map((item) => String(item || '').trim())
+        .filter(Boolean),
+    ),
+  )
+
+  const result = {
+    selectedFontIds,
+    favoriteFontIds,
+  }
+
+  if (typeof payload.inputText === 'string') {
+    result.inputText = payload.inputText
+  }
+  if (typeof payload.textColor === 'string') {
+    result.textColor = payload.textColor
+  }
+  if (payload.fontSize !== undefined && payload.fontSize !== null && payload.fontSize !== '') {
+    const fontSize = Number(payload.fontSize)
+    if (Number.isFinite(fontSize)) {
+      result.fontSize = fontSize
+    }
+  }
+  if (payload.letterSpacing !== undefined && payload.letterSpacing !== null && payload.letterSpacing !== '') {
+    const letterSpacing = Number(payload.letterSpacing)
+    if (Number.isFinite(letterSpacing)) {
+      result.letterSpacing = letterSpacing
+    }
+  }
+
+  return result
+}
+
+function buildDefaultConfigUrl(manifestUrl, baseUrl) {
+  const manifest = String(manifestUrl || '').trim()
+  if (manifest) {
+    const withoutHash = manifest.split('#')[0]
+    const [pathPart] = withoutHash.split('?')
+    const slashIndex = pathPart.lastIndexOf('/')
+    if (slashIndex >= 0) {
+      return `${pathPart.slice(0, slashIndex + 1)}default.json`
+    }
+  }
+  return normalizePath('/miniprogram/assets/default.json', baseUrl)
+}
+
 async function loadFontsManifest(options = {}) {
   const app = getApp()
   const manifestUrl = options.manifestUrl || app.globalData.fontsManifestUrl
@@ -79,6 +144,40 @@ async function loadFontsManifest(options = {}) {
   }
 }
 
+async function loadDefaultConfig(options = {}) {
+  const app = getApp()
+  const manifestUrl = options.manifestUrl || app.globalData.fontsManifestUrl
+  const baseUrl = options.baseUrl || app.globalData.fontsBaseUrl
+  const defaultConfigUrl = options.defaultConfigUrl ||
+    app.globalData.defaultConfigUrl ||
+    buildDefaultConfigUrl(manifestUrl, baseUrl)
+
+  if (app.globalData.defaultConfig && typeof app.globalData.defaultConfig === 'object') {
+    return app.globalData.defaultConfig
+  }
+
+  try {
+    const response = await request({
+      url: defaultConfigUrl,
+      method: 'GET',
+      timeout: 10000,
+    })
+
+    if (response.statusCode < 200 || response.statusCode >= 300) {
+      throw new Error(`获取默认配置失败，状态码: ${response.statusCode}`)
+    }
+
+    const remoteConfig = normalizeDefaultConfig(response.data)
+    app.globalData.defaultConfig = remoteConfig
+    return remoteConfig
+  } catch (error) {
+    console.warn('远程 default.json 加载失败，回退到本地默认配置:', error)
+    const fallbackConfig = normalizeDefaultConfig(localDefaultConfig)
+    app.globalData.defaultConfig = fallbackConfig
+    return fallbackConfig
+  }
+}
+
 function setLruCache(key, value) {
   if (fontBufferCache.has(key)) {
     fontBufferCache.delete(key)
@@ -125,6 +224,7 @@ function listCategories(fonts) {
 
 module.exports = {
   loadFontsManifest,
+  loadDefaultConfig,
   loadFontBuffer,
   listCategories,
 }