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

namespace PnvPanel.Application.Tests.Support;

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

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

        var currentUser = FakeCurrentUser.Authenticated(userId);
        var handler = new ReopenTicketCommandHandler(dbContext, _telegramNotifier, currentUser);

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

        Assert.True(result.IsSuccess);
        Assert.Equal(TicketStatus.Open, ticket.Status);
        await _telegramNotifier
            .Received(1)
            .NotifyAdminsTicketReopenedAsync(
                ticket.Id,
                Arg.Any<string>(),
                TicketType.BugReport,
                Arg.Any<CancellationToken>()
            );
    }

    [Fact]
    public async Task Handle_WhenOpen_ReturnsNotResolved()
    {
        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(userId);
        var handler = new ReopenTicketCommandHandler(dbContext, _telegramNotifier, currentUser);

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

        Assert.False(result.IsSuccess);
        Assert.Equal(SupportErrors.NotResolved, result.Error);
    }

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

        var currentUser = FakeCurrentUser.Authenticated(Guid.NewGuid());
        var handler = new ReopenTicketCommandHandler(dbContext, _telegramNotifier, currentUser);

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

        Assert.False(result.IsSuccess);
        Assert.Equal(SupportErrors.NotFound, result.Error);
    }

    [Fact]
    public async Task Handle_WhenRoleRequestResolved_ReturnsOnlyBugReportCanBeReopened()
    {
        // approve/reject — единственный способ решить заявку на роль/продление (см. CLAUDE.md);
        // Reopen для них запрещён даже если тикет каким-то образом оказался Resolved.
        using var dbContext = InMemoryDbContextFactory.Create();
        var userId = Guid.NewGuid();
        var ticket = SupportTicket.CreateRoleRequestForExistingRole(userId, Guid.NewGuid());
        ticket.Resolve();
        dbContext.SupportTickets.Add(ticket);
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var currentUser = FakeCurrentUser.Authenticated(userId);
        var handler = new ReopenTicketCommandHandler(dbContext, _telegramNotifier, currentUser);

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

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