v1.9.0: 试用策略改为 3 天/30 条（任一先到即止）+ 价值时刻提示 + 到期 24h 内 8 折 + 过期只锁评论

background.js

@@ -69,7 +69,8 @@ reportInstall(false); // SW 启动即登记一次（同一浏览器只记一条
 const AUTH_BASE = "https://auth.88531.cn/api";
 const PROJECT_NAME = "B站评论插件";
 const PROJECT_ID = 4;
-const TRIAL_MS = 24 * 3600 * 1000; // 未授权试用1天
+const TRIAL_MS = 72 * 3600 * 1000; // 未授权试用3天
+const TRIAL_COMMENT_LIMIT = 30; // 试用期内最多30条评论，用完或到期任一先到即止
 const CARD_API_KEY = "ak_ab99ed40b2296d6d2db06a4b5692b987";
 
 async function getMachineId() {
@@ -124,14 +125,21 @@ async function checkLicense() {
     offline = true; // 网络/超时 → 放行
   }
 
-  const st = await chrome.storage.local.get("trialStart");
+  const st = await chrome.storage.local.get(["trialStart", "trialComments"]);
   let trialStart = Number(st.trialStart) || 0;
   if (!trialStart) {
     trialStart = Date.now();
     await chrome.storage.local.set({ trialStart: trialStart });
   }
   const trialEnd = trialStart + TRIAL_MS;
-  const leftMs = Math.max(0, trialEnd - Date.now());
+  const now = Date.now();
+  const leftMs = Math.max(0, trialEnd - now);
+  const usedComments = Number(st.trialComments) || 0;
+  const leftComments = Math.max(0, TRIAL_COMMENT_LIMIT - usedComments);
+  // 到期后24小时内购买享8折（折扣窗口从试用到期时刻起算）
+  const discountEnd = trialEnd + 24 * 3600 * 1000;
+  const inDiscount = leftMs <= 0 && now < discountEnd;
+  const discountLeftMs = inDiscount ? discountEnd - now : 0;
 
   return {
     authorized: authorized || offline, // offline 时视为放行
@@ -141,7 +149,12 @@ async function checkLicense() {
     machine: machine,
     trialStart: trialStart,
     trialEnd: trialEnd,
-    trialLeftMs: leftMs
+    trialLeftMs: leftMs,
+    trialCommentsUsed: usedComments,
+    trialCommentsLimit: TRIAL_COMMENT_LIMIT,
+    trialCommentsLeft: leftComments,
+    inDiscount: inDiscount,
+    discountLeftMs: discountLeftMs
   };
 }
 
@@ -450,11 +463,23 @@ async function sendWithRetry(tabId, msg, tries) {
 
 async function handleStartRun(p, sendResponse) {
   try {
-    // 授权闸门：未授权且试用到期 → 拦截自动评论（下载视频不走这里，不受影响）
+    // 授权闸门：未授权时同时检查试用时长与试用条数（下载视频不走这里，不受影响）
     const lic = await checkLicense();
-    if (!lic.authorized && lic.trialLeftMs <= 0) {
-      sendResponse({ ok: false, error: "免费试用已到期，自动评论已锁定。购买卡密激活后即可继续使用（下载视频不受影响）" });
-      return;
+    if (!lic.authorized) {
+      if (lic.trialLeftMs <= 0) {
+        sendResponse({ ok: false, error: "免费试用已到期，自动评论已锁定。购买卡密激活后即可继续使用（下载视频不受影响）" });
+        return;
+      }
+      if (lic.trialCommentsLeft <= 0) {
+        sendResponse({ ok: false, error: "试用期 " + lic.trialCommentsLimit + " 条评论已用完，购买卡密激活后不限量（下载视频不受影响）" });
+        return;
+      }
+      // 试用中：把剩余额度写进任务配置，内容脚本发到额度会自动停
+      p.config = p.config || {};
+      p.config.trialQuota = lic.trialCommentsLeft;
+      if (Number(p.config.maxN) > lic.trialCommentsLeft) {
+        p.config.maxN = lic.trialCommentsLeft;
+      }
     }
     ACTIVE_TASK = null; // 本次点「开始」= 全新任务，作废残留的旧任务（旧任务会带着预生成的旧文案继续跑）
     let tab = await findBiliTab();
@@ -604,7 +629,15 @@ chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
     (async () => {
       const h = await addRecord({ bvid: msg.bvid, title: msg.title, text: msg.text, keyword: msg.keyword, ts: msg.ts });
       const s = statsOf(h);
-      sendResponse({ ok: true, stats: { total: s.total, today: s.today, week: s.week } });
+      // 试用计数：每成功发一条评论消耗一次额度（仅未授权时计数）
+      let trialCommentsLeft = null;
+      const lic = await checkLicense();
+      if (!lic.realAuthorized && !lic.offline) {
+        const used = lic.trialCommentsUsed + 1;
+        await chrome.storage.local.set({ trialComments: used });
+        trialCommentsLeft = Math.max(0, lic.trialCommentsLimit - used);
+      }
+      sendResponse({ ok: true, stats: { total: s.total, today: s.today, week: s.week }, trialCommentsLeft: trialCommentsLeft });
     })();
     return true;
   }