import { NextApiRequest, NextApiResponse } from 'next'

import { brief as briefTemplate } from '../../../../lib/templates'
import renderer from '../../../../lib/renderer'
import * as store from '../../../../lib/store'

const TEMPLATES : { [key: string]: (options: object) => string; } = {
    brief: briefTemplate
};

const handler = async (req: NextApiRequest, res: NextApiResponse) => {
    if (req.method !== 'POST') {
        res.status(405).json({ statusCode: 405, message: 'Method Not Allowed' })
        return;
    }

    try {
        const {
            query: { template: templateArg },
        } = req
        const options = req.body;
        const templateName = Array.isArray(templateArg) ? templateArg[0] : templateArg;
        const template = TEMPLATES[templateName];

        if (!template) {
            res.status(404).json({ statusCode: 404, message: 'Template not availabe' })
            return;
        }

        const texDoc = template(options)
        const id = await renderer(texDoc)
        const storeData = Object.assign({}, options, {
            id,
            created: new Date().toISOString()
        });
        await store.add(storeData)
        res.status(200).json({ id: id });

    } catch (err) {
        console.error('Error:', err, 'for', req.url);
        res.status(500).json({ error: err.toString() });
    }
}

export default handler