import { Request, Response } from 'express';
import Beer from '../models/Beer';
import { isValidObjectId, Types } from 'mongoose';
import fs from 'fs';
import path from 'path';
import {Log} from 'nork'
import Docs from '../services/docsService';
import { addExam, delExam, editExam, IBeer } from '../validators/beerValidator';

new Docs('beer', 'add', '/api/v1/beer/add', 'POST', 'beer add api', undefined, { ...addExam, photos: 'optional field | max 4 images | formData' }, 'status object | beer object');
export async function add_post(req: Request, res: Response) {
	try {
		if (req.files) {
			req.body.imgs = [];
			const files: any = req.files;
			files.forEach((el: any) => {
				req.body.imgs.push(el.filename);
			});
		}
		const beer = new Beer(req.body);
		await beer.save();
		res.status(201).json(Log.info(201, 'beer was created', beer));
	} catch (err: any) {
		Log.error(500, 'error in add_post', err);
		res.status(500).json(Log.error(500, 'something went wrong'));
	}
}

new Docs('beer', 'get', '/api/v1/beer/get', 'GET', 'beer get api', undefined, undefined, 'status object | array of beer objects');
export async function get_get(req: Request, res: Response) {
	try {
		const beer = await Beer.find({}, '-__v');
		res.status(200).json(Log.info(200, 'beers fetched', beer));
	} catch (err: any) {
		Log.error(500, 'error in get_get', err);
		res.status(500).json(Log.error(500, 'something went wrong'));
	}
}

new Docs('beer', 'del', '/api/v1/beer/del', 'POST', 'beer del api', undefined, delExam, 'status object');
export async function del_post(req: Request, res: Response) {
	try {
		if (!isValidObjectId(req.body._id)) throw Log.error(400, 'this is not valid _id');

		const beer = await Beer.deleteOne(new Types.ObjectId(req.body._id));

		if (beer.deletedCount > 0) {
			res.status(200).json(Log.info(200, `beer ${req.body._id} deleted`));
			return;
		}
		throw Log.error(400, `beer ${req.body._id} does not exist`);
	} catch (err: any) {
		if (err.code) {
			res.status(err.code).json(err);
			return;
		}
		Log.error(500, 'error in del_post', err);
		res.status(500).json(Log.error(500, 'something went wrong'));
	}
}

new Docs('beer', 'edit', '/api/v1/beer/edit', 'POST', 'beer edit api', undefined, { ...editExam, photos: 'optional field | max 4 images | formData' }, 'status object |  beer data');
export async function edit_post(req: Request, res: Response) {
	try {
		if (!isValidObjectId(req.body._id)) throw Log.error(400, 'this is not valid _id');

		if (req.files) {
			if (!req.body.imgs) {
				req.body.imgs = [];
			}

			if (typeof req.body.imgs == 'string') {
				req.body.imgs = [req.body.imgs];
			}

			if (req.body.imgs.length + req.files.length > 4) {
				req.body.imgs.forEach((el: string[]) => {
					fs.rmSync(path.join(__dirname, '../../uploads/' + el));
				});
				throw Log.error(400, 'exceeds the 4 image limit');
			}

			const files: any = req.files;
			files.forEach((el: any) => {
				req.body.imgs.push(el.filename);
			});
		}

		const payload = { ...req.body };
		const beer = await Beer.findOneAndUpdate(new Types.ObjectId(req.body._id), payload, { new: true });
		res.json(Log.info(200, `beer ${req.body._id} edited`, beer));
	} catch (err: any) {
		if (err.code && typeof err.code == 'number') {
			res.status(err.code).json(err);
			return;
		}
		Log.error(500, 'error in del_post', err);
		res.status(500).json(Log.error(500, 'something went wrong'));
	}
}