using PlotLine.Data;
using PlotLine.ViewModels;

namespace PlotLine.Services;

public interface IStoryIntelligenceGlobalProgressService
{
    Task<StoryIntelligenceGlobalProgressViewModel> GetForCurrentUserAsync();
    Task<StoryIntelligenceGlobalProgressViewModel> GetForUserAsync(int userId);
}

public sealed class StoryIntelligenceGlobalProgressService(
    ICurrentUserService currentUser,
    IStoryIntelligenceResultRepository runs) : IStoryIntelligenceGlobalProgressService
{
    public async Task<StoryIntelligenceGlobalProgressViewModel> GetForCurrentUserAsync()
    {
        if (currentUser.UserId is not int userId)
        {
            return new StoryIntelligenceGlobalProgressViewModel();
        }

        return await GetForUserAsync(userId);
    }

    public async Task<StoryIntelligenceGlobalProgressViewModel> GetForUserAsync(int userId)
    {
        var summaries = await runs.ListActiveBookRunSummariesForUserAsync(userId);
        return new StoryIntelligenceGlobalProgressViewModel
        {
            Books = summaries.Select(summary => new StoryIntelligenceGlobalProgressBookViewModel
                {
                    ProjectID = summary.ProjectID,
                    BookID = summary.BookID,
                    BookTitle = string.IsNullOrWhiteSpace(summary.BookDisplayTitle) ? "Book" : summary.BookDisplayTitle,
                    RunCount = summary.RunCount,
                    PendingRunCount = summary.PendingRunCount,
                    RunningRunCount = summary.RunningRunCount,
                    CompletedRunCount = summary.CompletedRunCount,
                    FailedRunCount = summary.FailedRunCount,
                    TotalExpectedScenes = summary.TotalExpectedScenes,
                    CompletedScenes = summary.CompletedScenes,
                    FailedScenes = summary.FailedScenes,
                    ActiveScenes = summary.ActiveScenes,
                    Status = summary.Status,
                    TotalDurationMs = summary.TotalDurationMs,
                    UpdatedUtc = summary.UpdatedUtc
                })
                .ToList()
        };
    }
}