import { Injectable } from '@nestjs/common';
import { UserMessageDto } from 'src/chatbot/dtos/user-message.dto';
import { HttpService } from '@nestjs/axios';
import { firstValueFrom } from 'rxjs';
import { Message } from 'src/chatbot/dtos/dialog-message.dto';

@Injectable()
export class ChatbotService {
    constructor(private readonly httpService: HttpService) { }
    sessionId: string = 'testing';

    async pingExternalApi(body: UserMessageDto, email: string): Promise<Message> {
        try {
            const response = await firstValueFrom(this.httpService.post(
                'https://n8nai.targo.ca/webhook/chatty-Mcbot',
                {
                    userInput: body.userInput,
                    userId: email,
                    sessionId: this.sessionId,
                    pageContext: body.pageContext ?? undefined
                }
            ));

            if (!response.data) 
                return {
                    text: 'chatbot.error.NO_DATA_RECEIVED',
                    sent: false,
                }

            if (!response.data[0].output) 
                return {
                    text: 'chatbot.error.NO_OUTPUT_RECEIVED',
                    sent: false,
                }

            return {
                text: response.data[0].output,
                sent: false,
            };
        } catch (error) {
            console.error(error);

            return {
                text: 'chatbot.error.GENERIC_RESPONSE_ERROR',
                sent: false,
            }
        }
    }

    // async sendPageContext(body: PageContextDto, email: string) {
    //     const { data } = await firstValueFrom(
    //         this.httpService.post(
    //             'https://n8nai.targo.ca/webhook/chatty-Mcbot',
    //             { features: body, userId: email, userInput: '' },
    //         ),
    //     );
    //     return data;
    // }

    // Will have to modify later on to accomodate newer versions of User Auth/User type Structure
    // async sendUserContext(user_email: string) {
    //     if (!this.sessionId) {
    //         this.sessionId = 'SessionId = ' + user_email;
    //     }

    //     const response = await firstValueFrom(
    //         this.httpService.post(
    //             'https://n8nai.targo.ca/webhook/chatty-Mcbot',
    //             {
    //                 userId: this.sessionId,
    //                 userInput: '',
    //                 features: '',
    //             },
    //             { headers: { 'Content-Tyoe': 'application/json' } },
    //         ),
    //     );
    //     return response.data;
    // }
}