using ClaudeDo.Data;
using ClaudeDo.Ui.Services;
using ClaudeDo.Ui.ViewModels.Islands;
using Microsoft.EntityFrameworkCore;

namespace ClaudeDo.Ui.Tests.ViewModels;

// Slice 4 of the task-numbers feature: the detail-pane header badge shows "#<Number>" instead of
// the old "#T<guid-prefix>" handle, which nobody could correlate back to a task.
public class DetailsIslandTaskIdBadgeTests : IDisposable
{
    private readonly string _dbPath;

    public DetailsIslandTaskIdBadgeTests()
    {
        _dbPath = Path.Combine(Path.GetTempPath(), $"claudedo_badge_test_{Guid.NewGuid():N}.db");
        using var ctx = NewContext();
        ctx.Database.EnsureCreated();
    }

    public void Dispose()
    {
        try { File.Delete(_dbPath); } catch { }
        try { File.Delete(_dbPath + "-wal"); } catch { }
        try { File.Delete(_dbPath + "-shm"); } catch { }
    }

    private ClaudeDoDbContext NewContext()
    {
        var opts = new DbContextOptionsBuilder<ClaudeDoDbContext>()
            .UseSqlite($"Data Source={_dbPath}")
            .Options;
        return new ClaudeDoDbContext(opts);
    }

    private sealed class TestDbFactory : IDbContextFactory<ClaudeDoDbContext>
    {
        private readonly Func<ClaudeDoDbContext> _create;
        public TestDbFactory(Func<ClaudeDoDbContext> create) => _create = create;
        public ClaudeDoDbContext CreateDbContext() => _create();
    }

    private sealed class StubNotesApi : ClaudeDo.Ui.Services.Interfaces.INotesApi
    {
        public Task<List<DailyNoteDto>> ListAsync(DateOnly day) => Task.FromResult(new List<DailyNoteDto>());
        public Task<DailyNoteDto?> AddAsync(DateOnly day, string text) => Task.FromResult<DailyNoteDto?>(null);
        public Task UpdateAsync(string id, string text) => Task.CompletedTask;
        public Task DeleteAsync(string id) => Task.CompletedTask;
    }

    private sealed class NullServiceProvider : IServiceProvider
    {
        public object? GetService(Type serviceType) => null;
    }

    private sealed class DefaultStub : StubWorkerClient { }

    private DetailsIslandViewModel NewVm()
    {
        var factory = new TestDbFactory(NewContext);
        return new DetailsIslandViewModel(factory, new DefaultStub(), new NullServiceProvider(), new StubNotesApi(), new ClaudeDo.Ui.Services.MergeCoordinator());
    }

    [Fact]
    public void TaskIdBadge_NoTaskBound_IsEmpty()
    {
        var vm = NewVm();

        Assert.Equal("", vm.TaskIdBadge);
    }

    [Fact]
    public void TaskIdBadge_BoundTask_IsHashNumber()
    {
        var vm = NewVm();

        vm.Bind(new TaskRowViewModel { Id = Guid.NewGuid().ToString("N"), Number = 123 });

        Assert.Equal("#123", vm.TaskIdBadge);
    }
}