update login requirement for mobile,

replace inline loading text with LoadingScreen component in multiple pages
```

001_documentation/Requirements/REQ0016/index.md

@@ -2,7 +2,7 @@
 tags: cms, login-flow
 ---
 
-# login flow
+# CMS login flow
 
 ## description
 

001_documentation/Requirements/REQ0020/index.md

@@ -0,0 +1,37 @@
+---
+tags: mobile, login-flow
+---
+
+# Mobile login flow
+
+## description
+
+```mermaid
+graph TD;
+  Start-->A;
+  A-->B;
+  B-->C;
+  B-->D;
+  D-->E;
+  E-->F;
+  C-->G;
+  G-->A
+
+  F-->End;
+
+  A[greeting, asking username and password]
+  B[check if username and password is valid]
+  C[pasword failed]
+  D[pasword ok]
+  E[login success]
+  F[redirect to '/dashboard']
+
+  G[prompt user wrong username and password]
+
+  Start((start));
+  End((end))
+```
+
+### relations
+
+[REQ0016](../REQ0016/index.md)

001_documentation/Requirements/index.md

@@ -17,7 +17,8 @@
 - [REQ0013: cms dashboard](./REQ0013/index.md)
 - [REQ0014: mobile client](./REQ0014/index.md)
 - [REQ0015: pocketbase json schema to dbml converter](./REQ0015/index.md)
-- [REQ0016: login flow](./REQ0016/index.md)
+- [REQ0016: CMS login flow](./REQ0016/index.md)
 - [REQ0017: lesson page documentation](./REQ0017/index.md)
 - [REQ0018: family photo of frameworks](./REQ0018/index.md)
 - [REQ0019: System architecture](./REQ0019/index.md)
+- [REQ0020: Mobile login flow](./REQ0020/index.md)

002_source/ionic_mobile/TODO.md

@@ -1,3 +1,4 @@
 # TODO
 
 - [ ] add login mechanism
+- [ ] add task server handle callback tasks

002_source/ionic_mobile/src/Paths.tsx

@@ -1,9 +1,14 @@
 const Paths = {
-  AuthHome: `/auth/Home`,
+  AuthHome: `/auth/home`,
   AuthLogin: `/auth/login`,
   AuthSignUp: `/auth/signup`,
   SignUpSuccess: `/auth/sign_up_success`,
   AuthorizedTest: `/auth/authorized_test`,
+  //
+  StudentInfo: `/auth/student_info/:id`,
+  GetStudentInfoLink: (id: string) => `/auth/student_info/${id}`,
+  //
+  Setting: `/setting`,
 };
 
 export { Paths };

002_source/ionic_mobile/src/RouteConfig.tsx

@@ -45,14 +45,16 @@ import Page from './pages/Page';
 import QuizzesMainMenu from './pages/QuizzesMainMenu';
 //
 import MyAchievementPage from './pages/Record/index';
-import Setting from './pages/Setting/indx';
+import Setting from './pages/Setting';
 import Tab1 from './pages/Tab1';
 import Tab2 from './pages/Tab2';
 import Tab3 from './pages/Tab3';
 import { Paths } from './Paths';
 import SignUpSuccess from './pages/auth/SignUpSuccess';
 import AuthorizedTest from './pages/auth/AuthorizedTest';
-import { AuthGuard } from './pages/auth/AuthorizedTest/auth-guard';
+import { AuthGuard } from './components/auth/auth-guard';
+import StudentInfo from './pages/auth/StudentInfo';
+// import { AuthGuard } from './pages/auth/AuthorizedTest/auth-guard';
 // import WordPageWithLayout from './pages/Lesson/WordPageWithLayout.del';
 
 function RouteConfig() {
@@ -180,11 +182,15 @@ function RouteConfig() {
         <SignUpSuccess />
       </Route>
 
-      <Route exact path={Paths.AuthorizedTest}>
-        <AuthGuard>
+      {/* protected page */}
+      <AuthGuard>
+        <Route exact path={Paths.AuthorizedTest}>
           <AuthorizedTest />
-        </AuthGuard>
-      </Route>
+        </Route>
+        <Route exact path={Paths.StudentInfo}>
+          <StudentInfo />
+        </Route>
+      </AuthGuard>
 
       {/* TODO: remove below */}
       <Route exact path="/tab1">
@@ -196,7 +202,7 @@ function RouteConfig() {
       <Route path="/tab3">
         <Tab3 />
       </Route>
-      <Route path="/setting">
+      <Route path={Paths.Setting}>
         <Setting />
       </Route>
       <Route path="/page/:name" exact={true}>

002_source/ionic_mobile/src/components/auth/auth-guard.tsx

@@ -1,8 +1,8 @@
 import { useIonRouter } from '@ionic/react';
 import * as React from 'react';
 import { IonAlert, IonButton } from '@ionic/react';
-import { useUser } from '../../../hooks/use-user';
-import { Paths } from '../../../Paths';
+import { useUser } from '../../hooks/use-user';
+import { Paths } from '../../Paths';
 
 export interface AuthGuardProps {
   children: React.ReactNode;

002_source/ionic_mobile/src/db/UserMetas/GetById.tsx

@@ -4,5 +4,8 @@ import { COL_USER_METAS } from '../../constants';
 import { pb } from '../../lib/pb';
 
 export async function getUserMetaById(id: string): Promise<RecordModel> {
-  return pb.collection(COL_USER_METAS).getOne(id);
+  return pb.collection(COL_USER_METAS).getOne(id, {
+    expand: 'billingAddress',
+    requestKey: null,
+  });
 }

002_source/ionic_mobile/src/db/UserMetas/type.d.ts

@@ -1,5 +1,19 @@
 import type { BillingAddress } from '@/components/dashboard/user_meta/type.d';
 
+// DBUserMeta type definitions
+export interface DBUserMeta {
+  name: string;
+  avatar: string;
+  email: string;
+  phone: string;
+  quota: number;
+  status: 'active' | 'blocked' | 'pending';
+  //
+  collectionId: string;
+  id: string;
+  createdAt: Date;
+}
+
 // UserMeta type definitions
 export interface UserMeta {
   id: string;

002_source/ionic_mobile/src/lib/getStudentAvatar.tsx

@@ -0,0 +1,5 @@
+import { DBUserMeta } from '../db/UserMetas/type';
+
+export function getStudentAvatar(studentMeta: DBUserMeta) {
+  return `url(http://localhost:8090/api/files/${studentMeta.collectionId}/${studentMeta.id}/${studentMeta.avatar})`;
+}

002_source/ionic_mobile/src/pages/Lesson/LessonContainer/index.tsx

@@ -35,7 +35,7 @@ const LessonContainer: React.FC<ContainerProps> = ({ lesson_type_id: lesson_type
 
   if (loading) return <LoadingScreen />;
   if (!selected_content) return <LoadingScreen />;
-  if (selected_content.length == 0) return <>loading</>;
+  if (selected_content.length == 0) return <LoadingScreen />;
 
   return (
     <>

002_source/ionic_mobile/src/pages/auth/AuthorizedTest/index.tsx

@@ -22,12 +22,25 @@ import _ from 'lodash';
 import { Router, useParams } from 'react-router';
 import { Wave } from '../../../components/Wave';
 import { Paths } from '../../../Paths';
+import { useTransition } from 'react';
+import { useTranslation } from 'react-i18next';
+import { useUser } from '../../../hooks/use-user';
 
 function AuthorizedTest(): React.JSX.Element {
   const router = useIonRouter();
+  const { t } = useTranslation();
+  const { user } = useUser();
+
   function handleBackToLogin() {
     router.push(Paths.AuthLogin);
   }
+
+  function handleViewStudentInfoOnClick() {
+    if (user?.id) {
+      router.push(Paths.GetStudentInfoLink(user.id));
+    }
+  }
+
   return (
     <IonPage className={styles.loginPage}>
       <IonHeader>{/*  */}</IonHeader>
@@ -36,6 +49,12 @@ function AuthorizedTest(): React.JSX.Element {
         <IonGrid className="ion-padding">
           <IonCol>
             <IonRow>Authorized page test</IonRow>
+            {JSON.stringify({ user })}
+            {/*  */}
+            <IonRow>
+              <IonButton onClick={handleViewStudentInfoOnClick}>{t('view-student-info')}</IonButton>
+            </IonRow>
+            {/*  */}
             <IonRow>
               <IonButton onClick={handleBackToLogin}>Back to login</IonButton>
             </IonRow>

002_source/ionic_mobile/src/pages/auth/Home/index copy.tsx

@@ -0,0 +1,107 @@
+import {
+  IonButton,
+  IonCardTitle,
+  IonCol,
+  IonContent,
+  IonFooter,
+  IonGrid,
+  IonHeader,
+  IonImg,
+  IonPage,
+  IonRouterLink,
+  IonRow,
+  IonToolbar,
+  useIonRouter,
+} from '@ionic/react';
+// import { Action } from '../components/Action';
+import styles from './style.module.scss';
+import { Action } from '../../../components/Action';
+import { Paths } from '../../../Paths';
+import { useTranslation } from 'react-i18next';
+import { useEffect, useState } from 'react';
+import { useUser } from '../../../hooks/use-user';
+import { LoadingScreen } from '../../../components/LoadingScreen';
+
+const AuthHome = () => {
+  const { t } = useTranslation();
+  const { user, checkSession, isLoading } = useUser();
+  const router = useIonRouter();
+
+  const [showLoading, setShowLoading] = useState<boolean>(true);
+  const [showError, setShowErrr] = useState<{ show: boolean; message: string }>({
+    show: false,
+    message: '',
+  });
+
+  const [checkingSession, setCheckingSession] = useState<boolean>(true);
+
+  useEffect(() => {
+    if (!checkingSession) {
+      if (!user) {
+        router.push(Paths.AuthLogin);
+      } else {
+        router.push(Paths.AuthorizedTest);
+      }
+      setShowLoading(false);
+    }
+  }, [user, checkingSession]);
+
+  useEffect(() => {
+    checkSession?.()
+      .then(() => {
+        setCheckingSession(false);
+      })
+      .catch((err) => console.error(err));
+  }, [checkSession]);
+
+  if (showLoading) return <LoadingScreen />;
+  // if (showError) return <>{showError.message}</>;
+
+  return (
+    <IonPage className={'styles.homePage'}>
+      <IonHeader>
+        {/* <IonToolbar className="ion-no-margin ion-no-padding"> */}
+        <IonImg src="/assets/login2.jpeg" />
+        {/* </IonToolbar> */}
+      </IonHeader>
+      <IonContent fullscreen>
+        <div className={styles.getStarted}>
+          <IonGrid>
+            <IonRow className={`ion-text-center ion-justify-content-center ${styles.heading}`}>
+              <IonCol size="11" className={styles.headingText}>
+                <IonCardTitle>
+                  {/*  */}
+                  Join millions of other people discovering their creative side
+                </IonCardTitle>
+              </IonCol>
+            </IonRow>
+
+            <IonRow className={`ion-text-center ion-justify-content-center`}>
+              <IonRouterLink routerLink={Paths.AuthSignUp} className="custom-link">
+                <IonCol size="11">
+                  <IonButton className={`${styles.getStartedButton} custom-button`}>
+                    {/*  */}
+                    Get started &rarr;
+                  </IonButton>
+                </IonCol>
+              </IonRouterLink>
+            </IonRow>
+          </IonGrid>
+        </div>
+      </IonContent>
+
+      <IonFooter>
+        <IonGrid style={{ marginBottom: '1rem' }}>
+          <Action
+            message={t('already-got-an-account')}
+            text={t('login')}
+            link={Paths.AuthLogin}
+            //
+          />
+        </IonGrid>
+      </IonFooter>
+    </IonPage>
+  );
+};
+
+export default AuthHome;

002_source/ionic_mobile/src/pages/auth/Home/index.tsx

@@ -11,16 +11,33 @@ import {
   IonRouterLink,
   IonRow,
   IonToolbar,
+  useIonRouter,
 } from '@ionic/react';
 // import { Action } from '../components/Action';
 import styles from './style.module.scss';
 import { Action } from '../../../components/Action';
 import { Paths } from '../../../Paths';
 import { useTranslation } from 'react-i18next';
+import { useEffect, useState } from 'react';
+import { useUser } from '../../../hooks/use-user';
+import { LoadingScreen } from '../../../components/LoadingScreen';
 
 const AuthHome = () => {
   const { t } = useTranslation();
 
+  const [showLoading, setShowLoading] = useState<boolean>(true);
+  const [showError, setShowErrr] = useState<{ show: boolean; message: string }>({
+    show: false,
+    message: '',
+  });
+
+  useEffect(() => {
+    setShowLoading(false);
+  }, []);
+
+  if (showLoading) return <LoadingScreen />;
+  if (showError.show) return <>{showError.message}</>;
+
   return (
     <IonPage className={'styles.homePage'}>
       <IonHeader>

002_source/ionic_mobile/src/pages/auth/SignUp/index.tsx

@@ -38,6 +38,7 @@ import { z as zod } from 'zod';
 import { pb } from '../../../lib/pb';
 import { ClientResponseError } from 'pocketbase';
 import { COL_USER_METAS, COL_USERS } from '../../../constants';
+import { Paths } from '../../../Paths';
 
 function AuthSignUp(): React.JSX.Element {
   const params = useParams();
@@ -109,6 +110,8 @@ function AuthSignUp(): React.JSX.Element {
         };
         const userMetaRecord = await pb.collection(COL_USER_METAS).create(userMeta);
         await pb.collection('users').requestVerification(user.email);
+
+        router.push(Paths.SignUpSuccess);
       } catch (err: any) {
         const res_err = err as unknown as ClientResponseError;
         const {
@@ -133,19 +136,7 @@ function AuthSignUp(): React.JSX.Element {
 
   return (
     <IonPage className={styles.loginPage}>
-      <IonHeader>
-        <IonToolbar>
-          <IonButtons slot="start">
-            <IonBackButton icon={arrowBack} text="" className="custom-back" />
-          </IonButtons>
-
-          <IonButtons slot="end">
-            <IonButton className="custom-button">
-              <IonIcon icon={shapesOutline} />
-            </IonButton>
-          </IonButtons>
-        </IonToolbar>
-      </IonHeader>
+      <IonHeader></IonHeader>
       {/*  */}
       <IonContent fullscreen>
         <form onSubmit={handleSubmit(onSubmit)}>

002_source/ionic_mobile/src/pages/auth/StudentInfo/index.tsx

@@ -0,0 +1,154 @@
+import {
+  IonButton,
+  IonCol,
+  IonContent,
+  IonFooter,
+  IonGrid,
+  IonHeader,
+  IonPage,
+  IonRow,
+  IonText,
+  useIonRouter,
+} from '@ionic/react';
+import styles from './style.module.scss';
+import { useParams } from 'react-router';
+import { Wave } from '../../../components/Wave';
+import { Paths } from '../../../Paths';
+import { useEffect, useState } from 'react';
+import { getUserMetaById } from '../../../db/UserMetas/GetById';
+import { useTranslation } from 'react-i18next';
+import { DBUserMeta } from '../../../db/UserMetas/type';
+import { LoadingScreen } from '../../../components/LoadingScreen';
+import { getStudentAvatar } from '../../../lib/getStudentAvatar';
+import { authClient } from '../../../lib/auth/custom/client';
+import { useUser } from '../../../hooks/use-user';
+
+function StudentInfo(): React.JSX.Element {
+  const router = useIonRouter();
+  const { id } = useParams<{ id: string }>();
+  const { t } = useTranslation();
+
+  const [studentMeta, setStudentMeta] = useState<DBUserMeta>();
+  const test = useUser();
+
+  const [showLoading, setShowLoading] = useState<boolean>(true);
+  const [showError, setShowError] = useState<{ show: boolean; message: string }>({ show: false, message: '' });
+
+  function handleBackToLogin() {
+    router.push(Paths.AuthLogin);
+  }
+
+  function handleBackOnClick() {
+    router.push(Paths.Setting);
+  }
+
+  async function handleFetchUserMeta() {
+    try {
+      const result = await getUserMetaById(id);
+      const tempStudentMeta = result as unknown as DBUserMeta;
+
+      setStudentMeta(tempStudentMeta);
+      setShowLoading(false);
+    } catch (error) {
+      setShowError({ show: true, message: JSON.stringify({ error }, null, 2) });
+      setShowLoading(false);
+    }
+  }
+
+  async function handleLogoutOnClick() {
+    try {
+      await authClient.signOut();
+      router.push(Paths.AuthLogin);
+    } catch (error) {
+      console.error(error);
+    }
+  }
+
+  useEffect(() => {
+    void handleFetchUserMeta();
+  }, []);
+
+  if (showLoading) return <LoadingScreen />;
+  if (!studentMeta) return <LoadingScreen />;
+  if (showError.show) return <>{showError.message}</>;
+
+  return (
+    <IonPage className={styles.loginPage}>
+      <IonHeader>{/*  */}</IonHeader>
+      {/*  */}
+      <IonContent fullscreen>
+        <IonGrid className="ion-padding">
+          <IonRow className="ion-justify-content-center">
+            <IonCol size={'3'}>
+              <div
+                style={{
+                  backgroundImage: getStudentAvatar(studentMeta),
+                  backgroundSize: 'cover',
+                  backgroundPosition: 'center',
+                  backgroundRepeat: 'no-repeat',
+                  //
+                  width: '25vw',
+                  height: '25vw',
+                  //
+                  borderRadius: 'calc( 25vw / 2 )',
+                }}
+              ></div>
+            </IonCol>
+          </IonRow>
+          {/*  */}
+          <IonRow
+            className="ion-justify-content-between"
+            style={{
+              marginTop: '1rem',
+              marginBottom: '1rem',
+              //
+            }}
+          >
+            <IonText>{t('student-name')}</IonText>
+            <IonText>{studentMeta.name}</IonText>
+          </IonRow>
+          {/*  */}
+          <IonRow
+            className="ion-justify-content-between"
+            style={{
+              marginTop: '1rem',
+              marginBottom: '1rem',
+              //
+            }}
+          >
+            <IonText>{t('student-email')}</IonText>
+            <IonText>{studentMeta.email}</IonText>
+          </IonRow>
+          {/*  */}
+          <IonRow
+            className="ion-justify-content-between"
+            style={{
+              marginTop: '1rem',
+              marginBottom: '1rem',
+              //
+            }}
+          >
+            <IonText>{t('student-phone')}</IonText>
+            <IonText>{studentMeta.phone}</IonText>
+          </IonRow>
+          {/*  */}
+          <IonRow className="ion-justify-content-center">
+            <IonButton onClick={handleBackOnClick}>{t('back')}</IonButton>
+          </IonRow>
+
+          <IonRow className="ion-justify-content-center">
+            <IonButton onClick={handleLogoutOnClick}>{t('logout')}</IonButton>
+          </IonRow>
+        </IonGrid>
+      </IonContent>
+      {/*  */}
+      <IonFooter>
+        <IonGrid className="ion-no-margin ion-no-padding">
+          <Wave />
+        </IonGrid>
+      </IonFooter>
+    </IonPage>
+  );
+}
+
+export default StudentInfo;

002_source/ionic_mobile/src/pages/auth/StudentInfo/style.module.scss

@@ -0,0 +1,17 @@
+.signupPage {
+  ion-toolbar {
+    --border-style: none;
+    --border-color: transparent;
+    --padding-top: 1rem;
+    --padding-bottom: 1rem;
+    --padding-start: 1rem;
+    --padding-end: 1rem;
+  }
+}
+
+.headingText {
+  h5 {
+    margin-top: 0.2rem;
+    // color: #d3a6c7;
+  }
+}