using System.Text.Json;
using FictionArchive.Service.ReportingService.Models.Database;
using FictionArchive.Service.ReportingService.Models.DTOs;
using FictionArchive.Service.ReportingService.Services;
using HotChocolate;
using HotChocolate.Data;
using Microsoft.EntityFrameworkCore;

namespace FictionArchive.Service.ReportingService.GraphQL;

public class Query
{
    [UseProjection]
    [UseFiltering]
    [UseSorting]
    [GraphQLName("reportingJobs")]
    public IQueryable<Job> GetReportingJobs(ReportingServiceDbContext dbContext)
        => dbContext.Jobs.Include(j => j.History);

    [GraphQLName("reportingJob")]
    public async Task<JobDto?> GetReportingJob(Guid id, ReportingServiceDbContext dbContext)
    {
        var job = await dbContext.Jobs
            .Include(j => j.History.OrderBy(h => h.Timestamp))
            .FirstOrDefaultAsync(j => j.Id == id);

        if (job == null) return null;

        return new JobDto
        {
            Id = job.Id,
            JobType = job.JobType,
            Status = job.Status,
            CurrentStep = job.CurrentStep,
            ErrorMessage = job.ErrorMessage,
            Metadata = job.Metadata != null
                ? JsonSerializer.Deserialize<Dictionary<string, object>>(job.Metadata.RootElement.GetRawText())
                : null,
            History = job.History.Select(h => new JobHistoryEntryDto
            {
                FromState = h.FromState,
                ToState = h.ToState,
                Message = h.Message,
                Error = h.Error,
                Timestamp = h.Timestamp
            }).ToList(),
            CreatedTime = job.CreatedTime,
            UpdatedTime = job.UpdatedTime,
            CompletedTime = job.CompletedTime
        };
    }
}