a

src/services/authService.js

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+import useApiFetch from "@/composables/useApiFetch";
+
+class AuthService {
+    detectPlatform() {
+        const ua = navigator.userAgent.toLowerCase();
+        if (/micromessenger/.test(ua)) return "wxh5";
+        return "h5";
+    }
+
+    async authenticate() {
+        const platform = this.detectPlatform();
+        return await this.authByPlatform(platform);
+    }
+
+    async authByPlatform(platform) {
+        switch (platform) {
+            case "h5":
+                return await this.authBrowser();
+            case "wxh5":
+                return await this.authWechatH5();
+            default:
+                return await this.authBrowser();
+        }
+    }
+
+    async authBrowser() {
+        let token = localStorage.getItem("token");
+        if (!token) {
+            const { data } = await useApiFetch("/user/auth")
+                .post({ platform: "h5" })
+                .json();
+            token = data.accessToken;
+            localStorage.setItem("token", token);
+            localStorage.setItem("refreshAfter", data.refreshAfter);
+            localStorage.setItem("accessExpire", data.accessExpire);
+        }
+        return token;
+    }
+
+    async authWechatH5() {
+        const params = new URLSearchParams(window.location.search);
+        const code = params.get("code");
+        if (code) {
+            const { data } = await useApiFetch("/user/auth")
+                .post({ platform: "wxh5", code })
+                .json();
+            window.history.replaceState({}, "", window.location.pathname);
+            localStorage.setItem("token", data.accessToken);
+            localStorage.setItem("refreshAfter", data.refreshAfter);
+            localStorage.setItem("accessExpire", data.accessExpire);
+            return data.accessToken;
+        } else {
+            return null;
+        }
+    }
+}
+
+export const authService = new AuthService();