import njkMarkdown from 'nunjucks-markdown'
import { marked } from 'marked'

import { markedRenderer } from './markedRenderer.js'
import { utils } from './utils/utils.js'


export function nunjacksConfig(njk, express, Config) {
    // 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: express        // Use the express server. (Currently obsolete, I think.)
        }
    )
    
    njkEnv.addGlobal('siteMap', entrypoint => utils.values.siteMap.render(entrypoint ? entrypoint : "/"))

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

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