serve.js

const fs = require("fs");
const path = require("path");
const express = require("express");
const multer = require("multer");
const axios = require("axios");
const ejs = require('ejs');
const Parser = require("./parser");
const { isFolderExist, readFolder, replace_spaces, reduce_type } = require("./util/folder")
const { handleBook, ejsRender } = require("./util/bookHandler")



const app = express();
app.set('view engine', 'ejs');
app.use(express.static('static'));


const staticHolder = path.join(__dirname,'static');
const booksHolder = path.join(__dirname,'books');
const notesHolder = path.join(__dirname,'notes');
const ejsModelHolder = path.join(staticHolder,'models');
const ejsGeneratedHolder = path.join(staticHolder,'generated');
const notFoundPage = path.join(staticHolder,'404.html');
const bookHtmlsHolder = path.join(staticHolder,'htmls')


// 首页面获取
app.get('/', (req, res) => {
    const indexPage = path.join(staticHolder,'index.html');
    res.sendfile(indexPage)
})

// 信息页获取
app.get('/info/:bookName', async (req, res) => {
    const bookPath = path.join(booksHolder,req.params.bookName);
    const bookName = reduce_type(req.params.bookName)
    const info_ejs_path = path.join(ejsModelHolder,'info.ejs');
    const info_generated_path = path.join(ejsGeneratedHolder,'info.html');

    const book_generated_html = path.join(bookHtmlsHolder, bookName);

    try {
        const book = new Parser(bookPath);
        const bookInfo  = await handleBook(book, bookName);
        if(bookInfo.code === 200) {
            // console.log(bookInfo.data.menu)
            const ejsGenerated = await ejsRender(ejs,info_ejs_path,info_generated_path,bookInfo.data,bookName)
            if(ejsGenerated === 200){
                res.sendFile(info_generated_path);
            }
        } else {
            res.send({code: 400, msg: 'No info found!'})
        }
    } catch (e) {
        res.sendFile(notFoundPage);
    }

})


// 进入首页接口管理
app.get('/books', async (req, res) => {
    const files = await  readFolder(booksHolder);
    if(files && files.length > 0) {
        res.send({
            code: 200,
            data:files
        })
    } else {
        res.send({
            code: 200,
            data: [],
        })
    }
})

app.get('/notes', async (req, res) => {
    const files = await readFolder(notesHolder);
    if(files && files.length > 0) {
        res.send({
            code: 200,
            data:files
        })
    } else {
        res.send({
            code: 200,
            data: [],
        })
    }
})

// 获取书本信息

app.get('/read/:name', async (req, res) => {
    let filename = replace_spaces(req.params.name);
    const filePath = path.join(__dirname, 'books', filename);
    const fileExist = await isFolderExist(filePath);
    if(fileExist === 200){
        res.send({code: 200})
    } else {
        res.send({
            code: 404,
            msg:"The requested file is not existed!"
        })
    }

})

app.get('/*', async (req, res) => {
    res.sendFile(notFoundPage)
})
app.listen( 9877, () => {
    console.log("the serve is running on the port 9877")
})