const fs = require('fs')
const path = require('path')
const logger = require('./logger')()

/*
 * This class will output any files in the assets folder
 * Eg. `./assets/{foldername}/{filename}`
 *
 * You can also create a function that will output html
 * On the client side the `main.js` will use `innerHTML = {output}`
 */

class ReadFile {
    constructor(x) {
        try {
            this.object = {
                baseUrl: x.baseUrl, 
                mime: '',
                main: this.#Build(),
                types: x.mime,
                layouts: {
                    header: `
                        <section id='header'>
                        <nav class='menulist' id='menu-list'>
                        <img src='' alt='logo'/>
                        <a class='list' href='/'>Home</a>
                        <a class='list' href='/about'>About</a>
                        <a class='list' href='/blog'>Blog</a>
                        <a class='list' href='https://git.fatalmatrix.xyz/'>Git Server</a>
                        <a class='list' href='/contact'>Contact</a>
                        <div class='close' id='close'>
                        <p>&#10005;</p>
                        </div>
                        </nav>
                        <div class='menuIcon' id='menu-icon'>
                        <div></div>
                        <div></div>
                        <div></div>
                        </div>
                        </section>
                    `,
                    footer: `
                        <section id='footer'>
                        <nav>
                        <a href='/'>Home</a>
                        <a href='/about'>About</a>
                        <a href='/contact'></a>
                        </nav>
                        </section>
                    `
                }
            }
            for (const key in this.object.layouts) {this.object.layouts[key] = this.#RemoveSpaces(this.object.layouts[key])}
        } catch(err) {
            logger.Error(err)
        }
    }

    GetMain() {return this.object.main}
    async Create(x) {
        try {
            return this.#SetData({data: x, mime: this.object.types})
        } catch(err) {
            try {
                return await x.then(output => {return this.#SetData({data: output, mime: this.object.types})})
            } catch (err) {
                //console.log(x)
            }
        }
    }
    GetFile(x) {
        const path = x.split('/')
        const object = {
            file: fs.createReadStream('./assets/' + path[1] + '/' + path[2]).on('error', (err) => {
                logger.Error(err)
                return false
            }),
            mime: this.#GetFileType(path).then(output => {return output})
        }
        if (object.file) {return object} else {return null}
    }
    GetFavicon() {
        const object = {
            file: fs.createReadStream(`./assets/favicon/favicon.ico`).on('error', (err) => {
                logger.Error(`${err.code}: Failed to get 'favicon.ico'`)
                return null
            }),
            mime: this.#GetFileType('favicon.ico')
        }
        if (object.file) {return object} else {return null}
    }
    GetRobots() {
        const object = {
            file: fs.createReadStream(`./assets/robots/robots.txt`).on('error', (err) => {
                logger.Error(`${err.code}: Failed to get 'robots.txt'`)
                return null
            }),
            mime: this.#GetFileType('robots.txt')
        }
        if (object.file) {return object} else {return null}
    }
    CreateBlog(x) {
        const data = {
            start: `
                <section id='blog'>
                <div class='blogitem'>
            `,
            body: x,
            end: `
                </div>
                </section>
            `
        }
        return this.#SetData(data)
    }

    #SetData(x) {
        const object = JSON.parse(JSON.stringify(this.object))
        object.mime = x.mime.html
        delete object.types
        object.layouts.data = this.#RemoveSpaces(x.data)
        return object
    }
    async #GetFileType(x) {return this.object.types[path.extname('./assets/'+ x[1] + '/' + x[2]).slice(1)] || 'text/plain'}
    #Build() {return fs.readFileSync('./views/layouts/header.html', 'utf-8') + fs.readFileSync('./views/layouts/footer.html', 'utf-8')}
    #RemoveSpaces(x) {return x.replace(/^(\n)\s+/gm, '$1')}
}

module.exports = ReadFile