import fs from 'fs'
import express from 'express'

import njk from 'nunjucks'
import njkMarkdown from 'nunjucks-markdown'
import marked from 'marked'

import { requestHandler } from './libs/requestHandler.js'
import { markedRenderer } from './libs/markedRenderer.js'


// Load in config
const ConfigFile = fs.readFileSync('./config.json')
const Config = JSON.parse(ConfigFile)



// Create a server object
const Server = express()



// Configure the assets directory
Server.use('/assets', express.static(Config.assetsDir))

// Configure the nunjucks environment (HTML templating)
const njkEnv = njk.configure(
    Config.contentDir,
    {
        autoescape: true,       // Automatically escape HTML aka a '<' will become '&lt;'
        watch: true,            // Automatically reload all templates if they change on disk.
        trimBlocks: true,       // Remove trailing newlines from tags
        lstripBlocks: true,     // Automatically remove leading whitespace from tags
        express: Server         // Use the express server. (Currently obsolete, I think.)
    }
)

// Configure marked (markdown parser)
marked.use({
    gfm: true,                  // Use GitHub formatting?
    renderer: markedRenderer    // Use my own custom rendering for som tags
})

// Let nunjucks use markdown.
njkMarkdown.register(njkEnv, marked)



// Send all requests to the requestHandler.
Server.get('*', (req, res) => requestHandler(req, res, Config))



// Start the server 
Server.listen(
    Config.serverPort,
    () => {
        console.log(`Started server on ${Config.serverPort}.`)
    }
)