From 3f7f67a4d2b03d926efd9f49efd51b30f0c7a651 Mon Sep 17 00:00:00 2001
From: XXhaos <dragonisheep@gmail.com>
Date: Sat, 18 Apr 2026 11:27:53 +0800
Subject: [PATCH] Create capture_cart.js

---
 Scripts/capture_cart.js | 109 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 Scripts/capture_cart.js

diff --git a/Scripts/capture_cart.js b/Scripts/capture_cart.js
new file mode 100644
index 0000000..f59f76b
--- /dev/null
+++ b/Scripts/capture_cart.js
@@ -0,0 +1,109 @@
+/**
+ * Surge 脚本：gamertag 捕获 + FIFO 配对写入 cartId_history
+ *   - peoplehub 响应到达时捕获 gamertag
+ *   - 若 pending_carts 有等候的 cart → 取最老一条配对
+ *   - 否则把 gamertag 快照 push 进 pending_gamertags 等待
+ *
+ * Surge 配置：
+ * [Script]
+ * capture_gamertag = type=http-response, pattern=^https:\/\/peoplehub-public\.xboxlive\.com\/people\/gt\(.+\), requires-body=true, script-path=xxx.js
+ *
+ * [MITM]
+ * hostname = %APPEND% peoplehub-public.xboxlive.com
+ */
+
+const peoplePattern = /^https:\/\/peoplehub-public\.xboxlive\.com\/people\/gt\(.+\)/;
+
+const url = $request.url;
+const now = Date.now();
+
+const PAIR_WINDOW_MS = 30000;
+const MAX_QUEUE = 20;
+const MAX_HISTORY = 100;
+
+if (peoplePattern.test(url)) {
+    if (!$response.body) {
+        console.log("peoplehub triggered but no response body, skip");
+    } else {
+        try {
+            const body = JSON.parse($response.body);
+            const gamertag = body && body.people && body.people[0] && body.people[0].gamertag;
+
+            if (!gamertag) {
+                console.log("[history] 响应中未找到 gamertag，跳过");
+            } else {
+                if (gamertag !== $persistentStore.read("gamertag")) {
+                    $persistentStore.write(gamertag, "gamertag");
+                    console.log(`Stored gamertag: ${gamertag}`);
+                    $notification.post(
+                        "Surge 信息存储",
+                        "已捕获 gamertag",
+                        `gamertag: ${gamertag}`
+                    );
+                }
+
+                tryPairFromGamertag({ gamertag, ts: now });
+            }
+        } catch (error) {
+            console.log(`Error (gamertag): ${error}`);
+            $notification.post("Surge 脚本错误", "gamertag 捕获失败", `${error}`);
+        }
+    }
+}
+
+function tryPairFromGamertag(gtSnap) {
+    let pendingCart = readQueue("pending_carts");
+    pendingCart = pendingCart.filter(c => (now - c.ts) <= PAIR_WINDOW_MS);
+
+    if (pendingCart.length > 0) {
+        const cartSnap = pendingCart.shift();
+        writeQueue("pending_carts", pendingCart);
+
+        appendHistory({
+            gamertag: gtSnap.gamertag,
+            cartId: cartSnap.cartId,
+            authorization: cartSnap.authorization,
+            timestamp: new Date().toISOString()
+        });
+
+        console.log(`[history] ✅ gamertag 到达触发配对: gamertag=${gtSnap.gamertag}, cartId=${cartSnap.cartId}`);
+        $notification.post("Surge 历史记录", "新三元组已记入", `${gtSnap.gamertag}`);
+    } else {
+        let pendingGT = readQueue("pending_gamertags");
+        pendingGT = pendingGT.filter(g => (now - g.ts) <= PAIR_WINDOW_MS);
+        pendingGT.push(gtSnap);
+        if (pendingGT.length > MAX_QUEUE) pendingGT = pendingGT.slice(-MAX_QUEUE);
+        writeQueue("pending_gamertags", pendingGT);
+
+        console.log(`[history] gamertag 入队等待，当前 pending_gamertags 长度: ${pendingGT.length}`);
+    }
+}
+
+function readQueue(key) {
+    const raw = $persistentStore.read(key);
+    if (!raw) return [];
+    try {
+        const parsed = JSON.parse(raw);
+        return Array.isArray(parsed) ? parsed : [];
+    } catch (e) { return []; }
+}
+
+function writeQueue(key, arr) {
+    $persistentStore.write(JSON.stringify(arr), key);
+}
+
+function appendHistory(entry) {
+    let history = [];
+    const raw = $persistentStore.read("cartId_history");
+    if (raw) {
+        try {
+            const parsed = JSON.parse(raw);
+            if (Array.isArray(parsed)) history = parsed;
+        } catch (e) { history = []; }
+    }
+    history.push(entry);
+    if (history.length > MAX_HISTORY) history = history.slice(-MAX_HISTORY);
+    $persistentStore.write(JSON.stringify(history), "cartId_history");
+}
+
+$done({});