@page "/login"
@inject IAuthenticationService AuthenticationService
@inject NavigationManager Navigation

@layout AuthLayout
<h3>Login</h3>

@if (!string.IsNullOrEmpty(_errorMessage))
{
    <div class="alert alert-danger mt-2">@_errorMessage</div>
}

<EditForm Model="_loginModel" OnValidSubmit="HandleLogin">
    <div class="form-group">
        <label>Email:</label>
        <InputText class="form-control" @bind-Value="_loginModel.Email"/>
    </div>
    <div class="form-group">
        <label>Password:</label>
        <InputText class="form-control" @bind-Value="_loginModel.Password" type="password"/>
    </div>
    <button type="submit" class="btn btn-primary">Login</button>
</EditForm>

@code {
    private readonly UserLoginModel _loginModel = new();
    private string _errorMessage = string.Empty;

    private async Task HandleLogin()
    {
        _errorMessage = string.Empty;
        var response = await AuthenticationService.Login(_loginModel);

        if (response.StatusCode == 200)
        {
            var token = await AuthenticationService.GetAuthToken();
            var handler = new JwtSecurityTokenHandler();
            var jwtToken = handler.ReadJwtToken(token);
            var role = jwtToken.Claims.FirstOrDefault(c => c.Type == "role")?.Value;

            switch (role)
            {
                case UserRoles.Admin:
                    Navigation.NavigateTo("/admin/dashboard", true);
                    break;
                case UserRoles.Doctor:
                    Navigation.NavigateTo("/doctor/dashboard", true);
                    break;
                case UserRoles.Patient:
                    Navigation.NavigateTo("/patient/dashboard", true);
                    break;
            }
        }
        else
        {
            _errorMessage = response.Message; // Display error message
        }
    }

    protected override async Task OnInitializedAsync()
    {
        var token = await AuthenticationService.GetAuthToken();
        var handler = new JwtSecurityTokenHandler();
        var jwtToken = handler.ReadJwtToken(token);
        var role = jwtToken.Claims.FirstOrDefault(c => c.Type == "role")?.Value;

        switch (role)
        {
            case UserRoles.Admin:
                Navigation.NavigateTo("/admin/dashboard", true);
                break;
            case UserRoles.Doctor:
                Navigation.NavigateTo("/doctor/dashboard", true);
                break;
            case UserRoles.Patient:
                Navigation.NavigateTo("/patient/dashboard", true);
                break;
        }
    }

}