Data-Coupler/Data_Coupler/Pages/Login.razor

@page "/login"
@using Data_Coupler.Services
@using Microsoft.AspNetCore.Components.Forms
@inject IAuthenticationService AuthService
@inject NavigationManager NavigationManager

<div class="login-container">
    <div class="login-card">
        <div class="login-header">
            <h2>Data Coupler</h2>
            <p>Accedi per continuare</p>
        </div>
        
        <div class="login-body">
            <EditForm Model="@loginModel" OnValidSubmit="@HandleLogin">
                <DataAnnotationsValidator />
                
                <div class="form-group">
                    <label for="password">Password</label>
                    <InputText type="password" 
                               class="form-control" 
                               id="password" 
                               @bind-Value="loginModel.Password" 
                               placeholder="Inserisci la password"
                               autocomplete="current-password" />
                </div>

                @if (!string.IsNullOrEmpty(errorMessage))
                {
                    <div class="alert alert-danger" role="alert">
                        @errorMessage
                    </div>
                }

                <button type="submit" class="btn btn-primary btn-block">
                    <i class="oi oi-account-login"></i> Accedi
                </button>
            </EditForm>
        </div>
    </div>
</div>

<style>
    .login-container {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 100vh;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }

    .login-card {
        background: white;
        border-radius: 10px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        width: 100%;
        max-width: 400px;
        overflow: hidden;
    }

    .login-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 30px;
        text-align: center;
    }

    .login-header h2 {
        margin: 0;
        font-size: 28px;
        font-weight: 600;
    }

    .login-header p {
        margin: 10px 0 0 0;
        opacity: 0.9;
    }

    .login-body {
        padding: 30px;
    }

    .form-group {
        margin-bottom: 20px;
    }

    .form-group label {
        display: block;
        margin-bottom: 8px;
        font-weight: 500;
        color: #333;
    }

    .form-control {
        width: 100%;
        padding: 12px;
        border: 1px solid #ddd;
        border-radius: 5px;
        font-size: 14px;
        transition: border-color 0.3s;
    }

    .form-control:focus {
        outline: none;
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }

    .btn-block {
        width: 100%;
        padding: 12px;
        font-size: 16px;
        font-weight: 500;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: all 0.3s;
    }

    .btn-primary {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
    }

    .alert {
        padding: 12px;
        border-radius: 5px;
        margin-bottom: 20px;
    }

    .alert-danger {
        background-color: #fee;
        border: 1px solid #fcc;
        color: #c33;
    }
</style>

@code {
    private LoginModel loginModel = new LoginModel();
    private string errorMessage = string.Empty;

    protected override void OnInitialized()
    {
        // Se l'utente è già autenticato, reindirizza alla home
        if (AuthService.IsAuthenticated)
        {
            NavigationManager.NavigateTo("/");
        }
    }

    private void HandleLogin()
    {
        errorMessage = string.Empty;

        if (string.IsNullOrWhiteSpace(loginModel.Password))
        {
            errorMessage = "Inserisci la password";
            return;
        }

        if (AuthService.Login(loginModel.Password))
        {
            NavigationManager.NavigateTo("/");
        }
        else
        {
            errorMessage = "Password non corretta";
            loginModel.Password = string.Empty;
        }
    }

    private class LoginModel
    {
        public string Password { get; set; } = string.Empty;
    }
}