using System;
using System.Collections.Generic;
using System.Linq;
using CommunityToolkit.Mvvm.Messaging;
using Wino.Core.Domain.Entities.Mail;
using Wino.Core.Domain.Enums;
using Wino.Core.Domain.Interfaces;
using Wino.Core.Domain.Models.Requests;
using Wino.Messaging.UI;

namespace Wino.Core.Requests.Mail;

/// <summary>
/// Archive message request.
/// By default, the message will be moved to the Archive folder.
/// For Gmail, 'Archive' label will be removed from the message.
/// </summary>
/// <param name="IsArchiving">Whether are archiving or unarchiving</param>
/// <param name="Item">Mail to archive</param>
/// <param name="FromFolder">Source folder.</param>
/// <param name="ToFolder">Optional Target folder. Required for ImapSynchronizer and OutlookSynchronizer.</param>
public record ArchiveRequest(bool IsArchiving, MailCopy Item, MailItemFolder FromFolder, MailItemFolder ToFolder = null)
    : MailRequestBase(Item), ICustomFolderSynchronizationRequest
{
    public bool ExcludeMustHaveFolders => false;
    public List<Guid> SynchronizationFolderIds
    {
        get
        {
            var folderIds = new List<Guid> { FromFolder.Id };

            if (ToFolder != null)
            {
                folderIds.Add(ToFolder.Id);
            }

            return folderIds;
        }
    }

    public override MailSynchronizerOperation Operation => MailSynchronizerOperation.Archive;
    public override object GroupingKey() => (Operation, IsArchiving, FromFolder.Id, ToFolder?.Id ?? Guid.Empty);

    public override void ApplyUIChanges()
    {
        WeakReferenceMessenger.Default.Send(new MailRemovedMessage(Item, EntityUpdateSource.ClientUpdated));
    }

    public override void RevertUIChanges()
    {
        WeakReferenceMessenger.Default.Send(new MailAddedMessage(Item, EntityUpdateSource.ClientReverted));
    }
}

public class BatchArchiveRequest : BatchCollection<ArchiveRequest>
{
    public BatchArchiveRequest(IEnumerable<ArchiveRequest> collection) : base(collection)
    {
    }

    public override void ApplyUIChanges()
    {
        var removedMails = this.Select(x => x.Item).Where(x => x != null).ToList();
        if (removedMails.Count == 0)
            return;

        WeakReferenceMessenger.Default.Send(new BulkMailRemovedMessage(removedMails, EntityUpdateSource.ClientUpdated));
    }

    public override void RevertUIChanges()
    {
        var addedMails = this.Select(x => x.Item).Where(x => x != null).ToList();
        if (addedMails.Count == 0)
            return;

        WeakReferenceMessenger.Default.Send(new BulkMailAddedMessage(addedMails, EntityUpdateSource.ClientReverted));
    }
}