package org.telegram.telegrambots.meta.api.methods;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.core.type.TypeReference;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import lombok.Setter;
import lombok.ToString;
import org.telegram.telegrambots.meta.api.objects.ApiResponse;
import org.telegram.telegrambots.meta.api.objects.Message;
import org.telegram.telegrambots.meta.exceptions.TelegramApiRequestException;
import org.telegram.telegrambots.meta.exceptions.TelegramApiValidationException;

import java.io.IOException;

/**
 * @author Ruben Bermudez
 * @version 1.0
 * Use this method to forward messages of any kind.
 * Service messages can't be forwarded.
 *
 * On success, the sent Message is returned.
 */
@EqualsAndHashCode(callSuper = false)
@Getter
@Setter
@ToString
@NoArgsConstructor
@RequiredArgsConstructor
@AllArgsConstructor
@Builder
public class ForwardMessage extends BotApiMethod<Message> {
    public static final String PATH = "forwardmessage";

    private static final String CHATID_FIELD = "chat_id";
    private static final String FROMCHATID_FIELD = "from_chat_id";
    private static final String MESSAGEID_FIELD = "message_id";
    private static final String DISABLENOTIFICATION_FIELD = "disable_notification";
    private static final String PROTECTCONTENT_FIELD = "protect_content";

    @JsonProperty(CHATID_FIELD)
    @NonNull
    private String chatId; ///< Unique identifier for the chat to send the message to (or username for channels)
    @JsonProperty(FROMCHATID_FIELD)
    @NonNull
    private String fromChatId; ///< Unique identifier for the chat where the original message was sent — User or GroupChat id
    @JsonProperty(MESSAGEID_FIELD)
    @NonNull
    private Integer messageId; ///< Unique message identifier
    /**
     * Optional. Sends the message silently.
     * iOS users will not receive a notification,
     * Android users will receive a notification with no sound.
     * Other apps coming soon
     */
    @JsonProperty(DISABLENOTIFICATION_FIELD)
    private Boolean disableNotification;
    @JsonProperty(PROTECTCONTENT_FIELD)
    private Boolean protectContent; ///< Optional. Protects the contents of sent messages from forwarding and saving

    @Override
    public void validate() throws TelegramApiValidationException {
        if (chatId == null || chatId.isEmpty()) {
            throw new TelegramApiValidationException("ChatId can't be empty", this);
        }
        if (fromChatId == null || fromChatId.isEmpty()) {
            throw new TelegramApiValidationException("FromChatId can't be empty", this);
        }
        if (messageId == null) {
            throw new TelegramApiValidationException("MessageId can't be empty", this);
        }
    }

    @Override
    public String getMethod() {
        return PATH;
    }

    @Override
    public Message deserializeResponse(String answer) throws TelegramApiRequestException {
        try {
            ApiResponse<Message> result = OBJECT_MAPPER.readValue(answer,
                    new TypeReference<ApiResponse<Message>>(){});
            if (result.getOk()) {
                return result.getResult();
            } else {
                throw new TelegramApiRequestException("Error forwarding message", result);
            }
        } catch (IOException e) {
            throw new TelegramApiRequestException("Unable to deserialize response", e);
        }
    }
}