@page "/weather"
@page "/{locale}/weather"

@using Microsoft.Extensions.Localization
@inject IStringLocalizer<Weather> L
@inject Atomx.Admin.Client.Services.ILocalizationProvider LocalizationProvider

<PageTitle>@L["weather.title"]</PageTitle>

<h1>@L["weather.title"]</h1>

<p>@L["weather.summary"]</p>

<div style="margin-top:12px; margin-bottom:12px;">
    <strong>Quick links:</strong>
    <span style="padding-left:10px;"><NavLink href="/account/login">Login</NavLink></span>
    <span style="padding-left:10px;"><NavLink href="/counter">Counter</NavLink></span>
</div>

@if (forecasts == null)
{
    <p><em>Loading...</em></p>
}
else
{
    <table class="table">
        <thead>
            <tr>
                <th>Date</th>
                <th aria-label="Temperature in Celsius">@L["weather.temperature"]</th>
                <th aria-label="Temperature in Farenheit">Temp. (F)</th>
                <th>Summary</th>
            </tr>
        </thead>
        <tbody>
            @foreach (var forecast in forecasts)
            {
                <tr>
                    <td>@forecast.Date.ToShortDateString()</td>
                    <td>@forecast.TemperatureC</td>
                    <td>@forecast.TemperatureF</td>
                    <td>@forecast.Summary</td>
                </tr>
            }
        </tbody>
    </table>
}

@code {
    [Parameter]
    public string Locale { get; set; } = string.Empty;
    private WeatherForecast[]? forecasts;

    protected override async Task OnInitializedAsync()
    {
        if (LocalizationProvider != null)
        {
            LocalizationProvider.LanguageChanged += OnLanguageChanged;
        }

        if (OperatingSystem.IsBrowser() && LocalizationProvider != null)
        {
            try { await LocalizationProvider.LoadCultureAsync(LocalizationProvider.CurrentCulture); } catch { }
        }

        // Simulate asynchronous loading to demonstrate a loading indicator
        await Task.Delay(500);

        var startDate = DateOnly.FromDateTime(DateTime.Now);
        var summaries = new[] { "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching" };
        forecasts = Enumerable.Range(1, 5).Select(index => new WeatherForecast
        {
            Date = startDate.AddDays(index),
            TemperatureC = Random.Shared.Next(-20, 55),
            Summary = summaries[Random.Shared.Next(summaries.Length)]
        }).ToArray();
    }

    private void OnLanguageChanged(object? s, string c) => _ = InvokeAsync(StateHasChanged);

    public void Dispose() { if (LocalizationProvider != null) LocalizationProvider.LanguageChanged -= OnLanguageChanged; }

    private class WeatherForecast
    {
        public DateOnly Date { get; set; }
        public int TemperatureC { get; set; }
        public string? Summary { get; set; }
        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
    }

    private string GetShortCulture(string current)
    {
        if (string.IsNullOrEmpty(current)) return current;
        if (current.StartsWith("zh", StringComparison.OrdinalIgnoreCase)) return "zh";
        if (current.StartsWith("en", StringComparison.OrdinalIgnoreCase)) return "en";
        var prefix = current.Split('-', StringSplitOptions.RemoveEmptyEntries).FirstOrDefault();
        return prefix ?? current;
    }
}