using NSubstitute;
using PnvPanel.Application.Admin.Support;
using PnvPanel.Application.Common.Interfaces;
using PnvPanel.Application.Support;
using PnvPanel.Application.Tests.TestSupport;
using PnvPanel.Domain.Support;
using Xunit;

namespace PnvPanel.Application.Tests.Admin.Support;

public class ResolveTicketCommandHandlerTests
{
    private readonly IRealtimeNotifier _notifier = Substitute.For<IRealtimeNotifier>();
    private readonly ITelegramNotifier _telegramNotifier = Substitute.For<ITelegramNotifier>();

    [Fact]
    public async Task Handle_ResolvesOpenTicket()
    {
        using var dbContext = InMemoryDbContextFactory.Create();
        var userId = Guid.NewGuid();
        var ticket = SupportTicket.CreateBugReport(userId);
        dbContext.SupportTickets.Add(ticket);
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var currentUser = FakeCurrentUser.Authenticated(Guid.NewGuid(), "admin");
        var handler = new ResolveTicketCommandHandler(
            dbContext,
            _notifier,
            _telegramNotifier,
            currentUser
        );

        var result = await handler.Handle(
            new ResolveTicketCommand(ticket.Id),
            CancellationToken.None
        );

        Assert.True(result.IsSuccess);
        Assert.Equal(TicketStatus.Resolved, ticket.Status);
    }

    [Fact]
    public async Task Handle_WhenTicketIsOwnedByAdmin_StillResolves()
    {
        // Решить свой же тикет можно — Resolve не меняет роль, риска нет (иначе тикет одинокого
        // админа навсегда застревал бы в Open).
        using var dbContext = InMemoryDbContextFactory.Create();
        var adminId = Guid.NewGuid();
        var ticket = SupportTicket.CreateBugReport(adminId);
        dbContext.SupportTickets.Add(ticket);
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var currentUser = FakeCurrentUser.Authenticated(adminId, "admin");
        var handler = new ResolveTicketCommandHandler(
            dbContext,
            _notifier,
            _telegramNotifier,
            currentUser
        );

        var result = await handler.Handle(
            new ResolveTicketCommand(ticket.Id),
            CancellationToken.None
        );

        Assert.True(result.IsSuccess);
        Assert.Equal(TicketStatus.Resolved, ticket.Status);
    }

    [Fact]
    public async Task Handle_WhenExtensionRequest_ReturnsOnlyBugReportCanBeResolvedDirectly()
    {
        // Заявку на продление можно решить только через Approve/Reject — Resolve обходил бы
        // одобрение (дни так и не начислились бы), см. CLAUDE.md.
        using var dbContext = InMemoryDbContextFactory.Create();
        var userId = Guid.NewGuid();
        var ticket = SupportTicket.CreateExtensionRequest(userId, 14);
        dbContext.SupportTickets.Add(ticket);
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var currentUser = FakeCurrentUser.Authenticated(Guid.NewGuid(), "admin");
        var handler = new ResolveTicketCommandHandler(
            dbContext,
            _notifier,
            _telegramNotifier,
            currentUser
        );

        var result = await handler.Handle(
            new ResolveTicketCommand(ticket.Id),
            CancellationToken.None
        );

        Assert.False(result.IsSuccess);
        Assert.Equal(SupportErrors.OnlyBugReportCanBeResolvedDirectly, result.Error);
        Assert.Equal(TicketStatus.Open, ticket.Status);
    }
}