bulletboards/ImageBoardServerApp/Pages/Accounts/UserPage.razor

@page "/sys/you"
@using ImageBoardServerApp.Auth
@using ImageBoardServerApp.Data.Repository
@inject AuthenticationStateProvider authStateProvider 
@inject NavigationManager navManager

<PageTitle>YOU - Bulletboards</PageTitle>

<AuthorizeView>
    <Authorized>
        <h3>YOU</h3>
        <br/>
        <span>Email: @mail</span>
        <br/>
        <span>Email: </span>
        <input type="email" id="email" @bind="newMail" />
        <a @onclick="changeEmail" href="javascript:void(0)">[Change Email]</a>
        <br/>
        <a href="/sys/resetpw">[Change Password]</a>
        <br/>
        <a href="/sys/logout">[Logout]</a>
    </Authorized>
    <NotAuthorized>
        <span>You are not logged in.</span>
        <a class="navbar-brand" href="/sys/login">Please login first.</a>
    </NotAuthorized>
</AuthorizeView>

@code {
    
    private string mail { get; set; } = "";
    private string newMail { get; set; }

    protected override async Task OnInitializedAsync()
    {
        var cauthStateProvder = (CustomAuthenticationStateProvider)authStateProvider;
        var user = await cauthStateProvder.GetAuthenticationStateAsync();
        if (user.User.Identity.IsAuthenticated)
        {
            mail = user.User.Identity.Name;
        }
    }
    
    private async Task changeEmail()
    {
        var cauthStateProvder = (CustomAuthenticationStateProvider)authStateProvider;
        var user = await cauthStateProvder.GetAuthenticationStateAsync();
        var usr = user.User;
        UserData foundusr = await UsersRepository.getUserByIdAsync(int.Parse(usr.Identity.Name));
        if (foundusr == null)
        {
            return;
        }
        int userID = foundusr.UserID;
        if (newMail == null || newMail == "" || !newMail.Contains("@"))
        {
            return;
        }
        foundusr.Email = newMail;
        foundusr.lastActionTimeStamp = DateTimeOffset.Now.ToUnixTimeMilliseconds();
        await UsersRepository.updateUserAsync(foundusr);
    }
}