namespace KArtSell.Modules.ModelOperations.ApprovalWorkflow;

using System;
using System.Collections.Generic;

public class ApprovalProposal
{
    public Guid Id { get; set; }
    public Guid ModelId { get; set; }
    public ApprovalStatus Status { get; set; }
    public string CreatedBy { get; set; } = null!;
    public DateTimeOffset CreatedAt { get; set; }
    public string Justification { get; set; } = null!;
    public DateOnly EffectiveAt { get; set; }

    public DateTimeOffset? ProposedAt { get; set; }
    public string? ApprovedBy { get; set; }
    public DateTimeOffset? ApprovedAt { get; set; }
    public string? ApprovalNotes { get; set; }

    public string? ActivatedBy { get; set; }
    public DateTimeOffset? ActivatedAt { get; set; }

    public DateTimeOffset PublishedAt { get; set; }
    public int Revision { get; set; }
    public Guid CorrelationId { get; set; }

    public List<ApprovalEvidence> Evidence { get; set; } = [];
    public List<ApprovalEvent> Events { get; set; } = [];

    public bool CanBeProposed => Status == ApprovalStatus.Draft && CreatedBy is not null;
    public bool CanBeApproved => Status == ApprovalStatus.Proposed;
    public bool CanBeActivated => Status == ApprovalStatus.Approved;
}

public enum ApprovalStatus
{
    Draft,
    Proposed,
    Approved,
    Active,
    Rejected
}

public class ApprovalEvidence
{
    public Guid Id { get; set; }
    public Guid ApprovalProposalId { get; set; }
    public string EvidenceType { get; set; } = null!;
    public string EvidenceUrl { get; set; } = null!;
    public string? ReviewerComment { get; set; }
    public DateTimeOffset PublishedAt { get; set; }
    public Guid CorrelationId { get; set; }
}

public class ApprovalEvent
{
    public Guid Id { get; set; }
    public Guid ApprovalProposalId { get; set; }
    public string EventType { get; set; } = null!;
    public string ActorEmail { get; set; } = null!;
    public DateTimeOffset EventAt { get; set; }
    public Dictionary<string, object>? Details { get; set; }
    public DateTimeOffset PublishedAt { get; set; }
    public Guid CorrelationId { get; set; }
}

public class CreateApprovalProposalRequest
{
    public Guid ModelId { get; set; }
    public DateOnly EffectiveAt { get; set; }
    public string Justification { get; set; } = null!;
}

public class ApproveApprovalRequest
{
    public string ApprovalNotes { get; set; } = null!;
    public List<EvidenceItem> Evidence { get; set; } = [];
}

public class EvidenceItem
{
    public string Type { get; set; } = null!;
    public string Url { get; set; } = null!;
    public string? Comment { get; set; }
}

public class ApprovalProposalResponse
{
    public Guid Id { get; set; }
    public Guid ModelId { get; set; }
    public string Status { get; set; } = null!;
    public string CreatedBy { get; set; } = null!;
    public DateTimeOffset CreatedAt { get; set; }
    public string Justification { get; set; } = null!;
    public DateOnly EffectiveAt { get; set; }
    public string? ApprovedBy { get; set; }
    public DateTimeOffset? ApprovedAt { get; set; }
    public string? ApprovalNotes { get; set; }
    public List<ApprovalEvidenceResponse> Evidence { get; set; } = [];
}

public class ApprovalEvidenceResponse
{
    public Guid Id { get; set; }
    public string EvidenceType { get; set; } = null!;
    public string EvidenceUrl { get; set; } = null!;
    public string? ReviewerComment { get; set; }
}