import { NextApiRequest, NextApiResponse } from 'next';
import { PrismaClient } from '@prisma/client';

const common = require('../../../../src/helpers/common');
const logger = require('../../../../src/logger');

// Utility to parse query parameters into a Prisma query
const parseQueryParams = (query: any) => {
    return {
        select: query.select ? JSON.parse(query.select) : undefined,
        include: query.include ? JSON.parse(query.include) : undefined,
        where: query.where ? JSON.parse(query.where) : undefined,
        orderBy: query.orderBy ? JSON.parse(query.orderBy) : undefined,
        skip: query.skip ? parseInt(query.skip, 10) : undefined,
        limit: query.limit ? parseInt(query.limit, 10) : undefined,
        distinct: query.distinct ? query.distinct.split(',') : undefined,
    };
};

export default async function handler(req: NextApiRequest, res: NextApiResponse) {
    const prisma: PrismaClient = common.getPrismaClient();
    const modelArray = (req.query.model || (req.body && req.body.model)) as string[];
    let queryOptions = {};

    if (req.method === 'POST' && req.headers['content-type']?.includes('application/json')) {
        // Handle POST request
        queryOptions = req.body;
    } else {
        // Handle GET request
        queryOptions = parseQueryParams(req.query);
    }

    try {
        if (!modelArray || modelArray.length === 0) {
            throw new Error('Model is required as a part of the URL path.');
        }
        const modelName = modelArray[0]; // Get the first part of the model array
        const result = await prisma[modelName].findMany(queryOptions);
        res.status(200).json(result);
    } catch (error) {
        console.error(error);
        res.status(500).json({ error: error.message });
    }
}