From 77b03b17a59655c1eeb00e0a818c81f8ea5e326e Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sat, 29 Jul 2023 22:41:32 +0800
Subject: ...

---
 FrontEnd/src/App.tsx                           |   2 +-
 FrontEnd/src/pages/login/index.css             |  10 ++
 FrontEnd/src/pages/login/index.tsx             | 133 +++++++++++++++++++++++++
 FrontEnd/src/views/common/input/InputGroup.tsx |  23 ++++-
 4 files changed, 163 insertions(+), 5 deletions(-)
 create mode 100644 FrontEnd/src/pages/login/index.css
 create mode 100644 FrontEnd/src/pages/login/index.tsx

(limited to 'FrontEnd')

diff --git a/FrontEnd/src/App.tsx b/FrontEnd/src/App.tsx
index 92fe0652..8f2bf6b0 100644
--- a/FrontEnd/src/App.tsx
+++ b/FrontEnd/src/App.tsx
@@ -7,7 +7,7 @@ import LoadingPage from "./views/common/LoadingPage";
 import AboutPage from "./pages/about";
 import SettingPage from "./pages/setting";
 import Center from "./views/center";
-import Login from "./views/login";
+import Login from "./pages/login";
 import Register from "./views/register";
 import TimelinePage from "./views/timeline";
 import Search from "./views/search";
diff --git a/FrontEnd/src/pages/login/index.css b/FrontEnd/src/pages/login/index.css
new file mode 100644
index 00000000..d78b3587
--- /dev/null
+++ b/FrontEnd/src/pages/login/index.css
@@ -0,0 +1,10 @@
+.login-page {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.login-page-welcome {
+  text-align: center;
+  font-size: 2em;
+}
\ No newline at end of file
diff --git a/FrontEnd/src/pages/login/index.tsx b/FrontEnd/src/pages/login/index.tsx
new file mode 100644
index 00000000..9aee455f
--- /dev/null
+++ b/FrontEnd/src/pages/login/index.tsx
@@ -0,0 +1,133 @@
+import { useState, useEffect } from "react";
+import { Link, useNavigate } from "react-router-dom";
+import { Trans } from "react-i18next";
+
+import { useUser, userService } from "@/services/user";
+
+import { useC } from "@/views/common/common";
+import LoadingButton from "@/views/common/button/LoadingButton";
+import {
+  InputErrorDict,
+  InputGroup,
+  useInputs,
+} from "@/views/common/input/InputGroup";
+import Page from "@/views/common/Page";
+
+import "./index.css";
+
+export default function LoginPage() {
+  const c = useC();
+
+  const user = useUser();
+
+  const navigate = useNavigate();
+
+  const [process, setProcess] = useState<boolean>(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const { hasErrorAndDirty, confirm, setAllDisabled, inputGroupProps } =
+    useInputs({
+      init: {
+        scheme: {
+          inputs: [
+            {
+              key: "username",
+              type: "text",
+              label: "user.username",
+            },
+            {
+              key: "password",
+              type: "text",
+              label: "user.password",
+              password: true,
+            },
+            {
+              key: "rememberMe",
+              type: "bool",
+              label: "user.rememberMe",
+            },
+          ],
+          validator: ({ username, password }) => {
+            const result: InputErrorDict = {};
+            if (username === "") {
+              result["username"] = "login.emptyUsername";
+            }
+            if (password === "") {
+              result["password"] = "login.emptyPassword";
+            }
+            return result;
+          },
+        },
+        dataInit: {},
+      },
+    });
+
+  useEffect(() => {
+    if (user != null) {
+      const id = setTimeout(() => navigate("/"), 3000);
+      return () => {
+        clearTimeout(id);
+      };
+    }
+  }, [navigate, user]);
+
+  if (user != null) {
+    return <p>{c("login.alreadyLogin")}</p>;
+  }
+
+  const submit = (): void => {
+    const confirmResult = confirm();
+    if (confirmResult.type === "ok") {
+      const { username, password, rememberMe } = confirmResult.values;
+      setAllDisabled(true);
+      setProcess(true);
+      userService
+        .login(
+          {
+            username: username as string,
+            password: password as string,
+          },
+          rememberMe as boolean,
+        )
+        .then(
+          () => {
+            if (history.length === 0) {
+              navigate("/");
+            } else {
+              navigate(-1);
+            }
+          },
+          (e: Error) => {
+            setProcess(false);
+            setAllDisabled(false);
+            setError(e.message);
+          },
+        );
+    }
+  };
+
+  return (
+    <Page className="login-page">
+      <div className="login-page-container">
+        <div className="login-page-welcome">{c("welcome")}</div>
+        <InputGroup {...inputGroupProps} />
+        {error ? <p className="cru-color-danger">{c(error)}</p> : null}
+        <div className="login-page-button-row">
+          <LoadingButton
+            loading={process}
+            onClick={(e) => {
+              submit();
+              e.preventDefault();
+            }}
+            disabled={hasErrorAndDirty}
+          >
+            {c("user.login")}
+          </LoadingButton>
+        </div>
+        <Trans i18nKey="login.noAccount">
+          0<Link to="/register">1</Link>2
+        </Trans>
+      </div>
+    </Page>
+  );
+}
diff --git a/FrontEnd/src/views/common/input/InputGroup.tsx b/FrontEnd/src/views/common/input/InputGroup.tsx
index 3d1e3ada..ee89b05c 100644
--- a/FrontEnd/src/views/common/input/InputGroup.tsx
+++ b/FrontEnd/src/views/common/input/InputGroup.tsx
@@ -23,7 +23,7 @@
  * `useInputs` hook takes care of logic and generate props for `InputGroup`.
  */
 
-import { useState, Ref } from "react";
+import { useState, Ref, useId } from "react";
 import classNames from "classnames";
 
 import { useC, Text, ThemeColor } from "../common";
@@ -332,6 +332,8 @@ export function InputGroup({
 }: InputGroupProps) {
   const c = useC();
 
+  const id = useId();
+
   return (
     <div
       ref={containerRef}
@@ -357,6 +359,8 @@ export function InputGroup({
           onChange(index, value);
         };
 
+        const inputId = `${id}-${key}`;
+
         if (type === "text") {
           const { password } = item;
           return (
@@ -364,8 +368,13 @@ export function InputGroup({
               key={key}
               className={getContainerClassName(password && "password")}
             >
-              {label && <label className="cru-input-label">{c(label)}</label>}
+              {label && (
+                <label className="cru-input-label" htmlFor={inputId}>
+                  {c(label)}
+                </label>
+              )}
               <input
+                id={inputId}
                 type={password ? "password" : "text"}
                 value={value}
                 onChange={(event) => {
@@ -382,6 +391,7 @@ export function InputGroup({
           return (
             <div key={key} className={getContainerClassName()}>
               <input
+                id={inputId}
                 type="checkbox"
                 checked={value}
                 onChange={(event) => {
@@ -390,7 +400,9 @@ export function InputGroup({
                 }}
                 disabled={disabled}
               />
-              <label className="cru-input-label-inline">{c(label)}</label>
+              <label className="cru-input-label-inline" htmlFor={inputId}>
+                {c(label)}
+              </label>
               {error && <div className="cru-input-error">{c(error)}</div>}
               {helper && <div className="cru-input-helper">{c(helper)}</div>}
             </div>
@@ -398,8 +410,11 @@ export function InputGroup({
         } else if (type === "select") {
           return (
             <div key={key} className={getContainerClassName()}>
-              <label className="cru-input-label">{c(label)}</label>
+              <label className="cru-input-label" htmlFor={inputId}>
+                {c(label)}
+              </label>
               <select
+                id={inputId}
                 value={value}
                 onChange={(event) => {
                   const e = event.target.value;
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