114 lines
4.4 KiB
C#
114 lines
4.4 KiB
C#
using ErsatzTV.Core;
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using ErsatzTV.Core.Domain;
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using ErsatzTV.Infrastructure.Data;
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using ErsatzTV.Infrastructure.Extensions;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.ChangeTracking;
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using static ErsatzTV.Application.ProgramSchedules.Mapper;
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namespace ErsatzTV.Application.ProgramSchedules;
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public class
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CopyProgramScheduleHandler : IRequestHandler<CopyProgramSchedule, Either<BaseError, ProgramScheduleViewModel>>
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{
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private readonly IDbContextFactory<TvContext> _dbContextFactory;
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public CopyProgramScheduleHandler(IDbContextFactory<TvContext> dbContextFactory) =>
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_dbContextFactory = dbContextFactory;
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public async Task<Either<BaseError, ProgramScheduleViewModel>> Handle(
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CopyProgramSchedule request,
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CancellationToken cancellationToken)
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{
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try
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{
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await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
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Validation<BaseError, ProgramSchedule> validation = await Validate(dbContext, request);
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return await validation.Apply(p => PerformCopy(dbContext, p, request, cancellationToken));
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}
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catch (Exception ex)
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{
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return BaseError.New(ex.Message);
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}
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}
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private async Task<ProgramScheduleViewModel> PerformCopy(
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TvContext dbContext,
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ProgramSchedule schedule,
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CopyProgramSchedule request,
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CancellationToken cancellationToken)
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{
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var clone = new ProgramSchedule();
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await dbContext.AddAsync(clone, cancellationToken);
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clone.Name = request.Name;
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clone.RandomStartPoint = schedule.RandomStartPoint;
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clone.ShuffleScheduleItems = schedule.ShuffleScheduleItems;
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clone.TreatCollectionsAsShows = schedule.TreatCollectionsAsShows;
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clone.KeepMultiPartEpisodesTogether = schedule.KeepMultiPartEpisodesTogether;
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// no playouts, no alternates
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clone.Playouts = new List<Playout>();
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clone.ProgramScheduleAlternates = new List<ProgramScheduleAlternate>();
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// clone all items
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clone.Items = new List<ProgramScheduleItem>();
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foreach (ProgramScheduleItem item in schedule.Items)
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{
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PropertyValues itemValues = dbContext.Entry(item).CurrentValues.Clone();
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itemValues["Id"] = 0;
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ProgramScheduleItem itemClone = item switch
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{
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ProgramScheduleItemFlood => new ProgramScheduleItemFlood(),
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ProgramScheduleItemDuration => new ProgramScheduleItemDuration(),
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ProgramScheduleItemMultiple => new ProgramScheduleItemMultiple(),
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_ => new ProgramScheduleItemOne()
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};
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await dbContext.AddAsync(itemClone, cancellationToken);
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dbContext.Entry(itemClone).CurrentValues.SetValues(itemValues);
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itemClone.ProgramScheduleId = 0;
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itemClone.ProgramSchedule = clone;
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}
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await dbContext.SaveChangesAsync(cancellationToken);
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return ProjectToViewModel(clone);
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}
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private static async Task<Validation<BaseError, ProgramSchedule>> Validate(
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TvContext dbContext,
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CopyProgramSchedule request) =>
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(await ScheduleMustExist(dbContext, request), await ValidateName(dbContext, request))
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.Apply((programSchedule, _) => programSchedule);
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private static Task<Validation<BaseError, ProgramSchedule>> ScheduleMustExist(
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TvContext dbContext,
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CopyProgramSchedule request) =>
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dbContext.ProgramSchedules
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.AsNoTracking()
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.Include(ps => ps.Items)
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.SelectOneAsync(p => p.Id, p => p.Id == request.ProgramScheduleId)
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.Map(o => o.ToValidation<BaseError>("Schedule does not exist."));
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private static async Task<Validation<BaseError, string>> ValidateName(
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TvContext dbContext,
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CopyProgramSchedule request)
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{
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List<string> allNames = await dbContext.ProgramSchedules
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.Map(ps => ps.Name)
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.ToListAsync();
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Validation<BaseError, string> result1 = request.NotEmpty(c => c.Name)
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.Bind(_ => request.NotLongerThan(50)(c => c.Name));
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var result2 = Optional(request.Name)
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.Where(name => !allNames.Contains(name))
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.ToValidation<BaseError>("Schedule name must be unique");
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return (result1, result2).Apply((_, _) => request.Name);
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}
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}
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