gacha

lib/gacha.js

@@ -0,0 +1,129 @@
+import { SingleGachaLog, ZZZGachaLogResp } from '../model/gacha.js';
+import { sleep } from '../utils/time.js';
+import { getGachaLog, saveGachaLog } from './db.js';
+import { ZZZ_GET_GACHA_LOG_API } from './mysapi/api.js';
+
+export const gacha_type_meta_data = {
+  音擎频段: ['3001'],
+  独家频段: ['2001'],
+  常驻频段: ['1001'],
+  邦布频段: ['5001'],
+};
+/**
+ *
+ * @param {string} authKey
+ * @param {*} gachaType
+ * @param {*} initLogGachaBaseType
+ * @param {number} page
+ * @param {string} endId
+ * @returns {Promise<ZZZGachaLogResp>}
+ */
+export async function getZZZGachaLogByAuthkey(
+  authKey,
+  gachaType = '2001',
+  initLogGachaBaseType = '2',
+  page = 1,
+  endId = '0'
+) {
+  const serverId = 'prod_gf_cn';
+  const url = ZZZ_GET_GACHA_LOG_API;
+  const timestamp = Math.floor(Date.now() / 1000);
+
+  const params = new URLSearchParams({
+    authkey_ver: '1',
+    sign_type: '2',
+    auth_appid: 'webview_gacha',
+    init_log_gacha_type: gachaType,
+    init_log_gacha_base_type: initLogGachaBaseType,
+    gacha_id: '2c1f5692fdfbb733a08733f9eb69d32aed1d37',
+    timestamp: timestamp.toString(),
+    lang: 'zh-cn',
+    device_type: 'mobile',
+    plat_type: 'ios',
+    region: serverId,
+    authkey: authKey,
+    game_biz: 'nap_cn',
+    gacha_type: gachaType,
+    real_gacha_type: initLogGachaBaseType,
+    page: page,
+    size: '20',
+    end_id: endId,
+  });
+
+  const response = await fetch(`${url}?${params}`, {
+    method: 'GET',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+  });
+
+  const data = await response.json();
+
+  if (!data || !data?.data) return null;
+
+  return new ZZZGachaLogResp(data.data);
+}
+
+/**
+ *
+ * @param {string} authKey
+ * @param {string} uid
+ * @returns {Promise<{
+ *  [x: string]: SingleGachaLog[];
+ * }>}
+ */
+export async function updateGachaLog(authKey, uid) {
+  let previousLog = getGachaLog(uid);
+  if (!previousLog) {
+    previousLog = {};
+  }
+  for (const name in gacha_type_meta_data) {
+    if (!previousLog[name]) {
+      previousLog[name] = [];
+    }
+    previousLog[name] = previousLog[name].map(
+      i =>
+        new SingleGachaLog(
+          i.uid,
+          i.gacha_id,
+          i.gacha_type,
+          i.item_id,
+          i.count,
+          i.time,
+          i.name,
+          i.lang,
+          i.item_type,
+          i.rank_type,
+          i.id
+        )
+    );
+    const lastSaved = previousLog[name]?.[0];
+    let page = 1;
+    let endId = '0';
+    for (const type of gacha_type_meta_data[name]) {
+      queryLabel: while (true) {
+        const log = await getZZZGachaLogByAuthkey(
+          authKey,
+          type,
+          type[0],
+          page,
+          endId
+        );
+        if (!log || !log?.list || log?.list?.length === 0) {
+          break;
+        }
+        for (const item of log.list) {
+          if (lastSaved && lastSaved.equals(item)) {
+            break queryLabel;
+          }
+          previousLog[name].push(item);
+        }
+        endId = log.list[log.list.length - 1]?.id || endId;
+        page++;
+        await sleep(400);
+      }
+    }
+  }
+  saveGachaLog(uid, previousLog);
+  return previousLog;
+}