using System.Text.Json;
using Microsoft.JSInterop;

namespace EnvelopeGenerator.Server.Client.Services;

public sealed class CreateEnvelopeBootstrapStorageService(IJSRuntime jsRuntime)
{
    private const string StorageKeyPrefix = "sender.createEnvelope.bootstrap.";
    private static readonly JsonSerializerOptions JsonOptions = new(JsonSerializerDefaults.Web);

    public async Task<string> StoreAsync(CreateEnvelopeBootstrapPayload payload)
    {
        var token = Guid.NewGuid().ToString("N");
        var key = BuildStorageKey(token);
        var json = JsonSerializer.Serialize(payload, JsonOptions);
        await jsRuntime.InvokeVoidAsync("sessionStorage.setItem", key, json);
        return token;
    }

    public async Task<CreateEnvelopeBootstrapPayload?> ConsumeAsync(string? token)
    {
        if (string.IsNullOrWhiteSpace(token))
            return null;

        var key = BuildStorageKey(token);
        var raw = await jsRuntime.InvokeAsync<string?>("sessionStorage.getItem", key);
        await jsRuntime.InvokeVoidAsync("sessionStorage.removeItem", key);

        if (string.IsNullOrWhiteSpace(raw))
            return null;

        try
        {
            return JsonSerializer.Deserialize<CreateEnvelopeBootstrapPayload>(raw, JsonOptions);
        }
        catch
        {
            return null;
        }
    }

    private static string BuildStorageKey(string token) => $"{StorageKeyPrefix}{token}";
}

public sealed record CreateEnvelopeBootstrapPayload(
    string Title,
    string Message,
    int? EnvelopeTypeId,
    string Language,
    bool UseAccessCode,
    bool TFAEnabled,
    int CertificationType,
    int FinalEmailToCreator,
    int FinalEmailToReceivers,
    bool SendReminderEmails,
    int FirstReminderDays,
    int ReminderIntervalDays,
    int ExpiresWhenDays,
    int ExpiresWarningWhenDays,
    IReadOnlyList<CreateEnvelopeBootstrapReceiver> Receivers,
    byte[]? DocumentBytes,
    string? DocumentFileName);

public sealed record CreateEnvelopeBootstrapReceiver(string FullName, string EmailAddress);