using AutoMapper;
using DigitalData.Core.Application;
using EnvelopeGenerator.Domain.Entities;
using EnvelopeGenerator.Application.Interfaces.Repositories;
using EnvelopeGenerator.Application.Dto.EnvelopeHistory;
using EnvelopeGenerator.Application.Dto.Receiver;
using EnvelopeGenerator.Application.Interfaces.Services;
using DigitalData.Core.Abstraction.Application.DTO;
using EnvelopeGenerator.Domain.Constants;

namespace EnvelopeGenerator.Application.Services;

/// <summary>
/// 
/// </summary>
[Obsolete("Use MediatR")]
public class EnvelopeHistoryService : CRUDService<IEnvelopeHistoryRepository, EnvelopeHistoryCreateDto, EnvelopeHistoryDto, EnvelopeHistory, long>, IEnvelopeHistoryService
{
    /// <summary>
    /// 
    /// </summary>
    /// <param name="repository"></param>
    /// <param name="mapper"></param>
    public EnvelopeHistoryService(IEnvelopeHistoryRepository repository, IMapper mapper)
        : base(repository, mapper)
    {
    }

    /// <summary>
    /// /
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <param name="status"></param>
    /// <returns></returns>
    public async Task<int> CountAsync(int? envelopeId = null, string? userReference = null, EnvelopeStatus? status = null) => await _repository.CountAsync(envelopeId: envelopeId, userReference: userReference, status: status);

    /// <summary>
    /// 
    /// </summary>
    /// <param name="status"></param>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <returns></returns>
    public async Task<bool> HasStatus(EnvelopeStatus status, int envelopeId, string userReference) => await _repository.CountAsync(
        envelopeId: envelopeId,
        userReference: userReference,
        status: status) > 0;

    /// <summary>
    /// 
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <returns></returns>
    public async Task<bool> AccessCodeAlreadyRequested(int envelopeId, string userReference) => await _repository.CountAsync(
        envelopeId: envelopeId,
        userReference:userReference,
        status: EnvelopeStatus.AccessCodeRequested) > 0;

    /// <summary>
    /// 
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <returns></returns>
    public async Task<bool> IsSigned(int envelopeId, string userReference) => await _repository.CountAsync(
        envelopeId: envelopeId,
        userReference: userReference,
        status: EnvelopeStatus.DocumentSigned) > 0;

    /// <summary>
    /// Checks if the specified envelope has been rejected.
    /// <para><b>Note:</b> <i>If any document within the envelope is rejected, the entire envelope will be considered rejected.</i></para>
    /// </summary>
    /// <param name="envelopeId">The ID of the envelope to check.</param>
    /// <param name="userReference">Optional user reference associated with the envelope.</param>
    /// <returns>A task that represents the asynchronous operation. The task result contains a boolean value indicating whether the envelope is rejected.</returns>
    public async Task<bool> IsRejected(int envelopeId, string? userReference = null)
    {
        return await _repository.CountAsync(
            envelopeId: envelopeId,
            userReference: userReference,
            status: EnvelopeStatus.DocumentRejected) > 0;
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <param name="referenceType"></param>
    /// <param name="status"></param>
    /// <param name="withSender"></param>
    /// <param name="withReceiver"></param>
    /// <returns></returns>
    public async Task<IEnumerable<EnvelopeHistoryDto>> ReadAsync(int? envelopeId = null, string? userReference = null, ReferenceType? referenceType = null, EnvelopeStatus? status = null, bool withSender = false, bool withReceiver = false)
    {
        var histDTOs = _mapper.Map<IEnumerable<EnvelopeHistoryDto>>(
                    await _repository.ReadAsync(
                                envelopeId: envelopeId,
                                userReference: userReference,
                                status: status,
                                withSender: withSender,
                                withReceiver: withReceiver));
        return referenceType is null ? histDTOs : histDTOs.Where(h => h.ReferenceType == referenceType);
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <returns></returns>
    public async Task<IEnumerable<EnvelopeHistoryDto>> ReadRejectedAsync(int envelopeId, string? userReference = null) =>
        await ReadAsync(envelopeId: envelopeId, userReference: userReference, status: EnvelopeStatus.DocumentRejected, withReceiver:true);

	//TODO: use IQueryable in repository to incerease the performance
    /// <summary>
    /// 
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <returns></returns>
	public async Task<IEnumerable<ReceiverDto>> ReadRejectingReceivers(int envelopeId)
	{
		var envelopes = await ReadRejectedAsync(envelopeId);
    return envelopes is null
        ? Enumerable.Empty<ReceiverDto>()
        : envelopes
            .Where(eh => eh?.Receiver != null)
            .Select(eh => eh.Receiver!);
	}

    /// <summary>
    /// 
    /// </summary>
    /// <param name="envelopeId"></param>
    /// <param name="userReference"></param>
    /// <param name="status"></param>
    /// <param name="comment"></param>
    /// <returns></returns>
	public async Task<DataResult<long>> RecordAsync(int envelopeId, string userReference, EnvelopeStatus status, string? comment = null) => 
        await CreateAsync(new ()
        {
            EnvelopeId = envelopeId,
            UserReference = userReference,
            Status = (int) status,
            ActionDate = DateTime.Now,
            Comment = comment
        })
        .ThenAsync(
            Success: dto => Result.Success(dto.Id),
            Fail: (mssg, ntc) => Result.Fail<long>().Message(mssg).Notice(ntc)
        );
}