/*
 * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
 * Your use of it is subject to your agreement with Google.
 */

package com.example.dto.dialogflow.conversation;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import java.time.Instant;

@JsonIgnoreProperties(ignoreUnknown = true)
@JsonInclude(Include.NON_NULL)
public record ConversationSessionDTO(
    String sessionId,
    String userId,
    String telefono,
    Instant createdAt,
    Instant lastModified,
    String lastMessage,
    String pantallaContexto
) {
    public ConversationSessionDTO(String sessionId, String userId, String telefono, Instant createdAt, Instant lastModified, String lastMessage, String pantallaContexto) {
        this.sessionId = sessionId;
        this.userId = userId;
        this.telefono = telefono;
        this.createdAt = createdAt;
        this.lastModified = lastModified;
        this.lastMessage = lastMessage;
        this.pantallaContexto = pantallaContexto;
    }

    public static ConversationSessionDTO create(String sessionId, String userId, String telefono) {
        Instant now = Instant.now();
        return new ConversationSessionDTO(sessionId, userId, telefono, now, now, null, null);
    }

    public ConversationSessionDTO withLastMessage(String lastMessage) {
        return new ConversationSessionDTO(this.sessionId, this.userId, this.telefono, this.createdAt, Instant.now(), lastMessage, this.pantallaContexto);
    }

    public ConversationSessionDTO withTelefono(String newTelefono) {
        if (newTelefono != null && !newTelefono.equals(this.telefono)) {
            return new ConversationSessionDTO(this.sessionId, this.userId, newTelefono, this.createdAt, this.lastModified, this.lastMessage, this.pantallaContexto);
        }
        return this;
    }

    public ConversationSessionDTO withPantallaContexto(String pantallaContexto) {
        return new ConversationSessionDTO(this.sessionId, this.userId, this.telefono, this.createdAt, this.lastModified, this.lastMessage, pantallaContexto);
    }
}