const app = require('express').Router();
const checkPermission = require("../middlewares/checkPermission");
const articleValidation = require("../validation/articleValidation");
const Article = require("../models/Article");

app.put("/", checkPermission("admin.article.create"), async (req, res) => {
    // Validate request
    const {error} = articleValidation.create.validate(req.body);
    if (error) return res.status(400).json({message: error.details[0].message});

    // Check if article already exists
    const {count: articleCount} = await Article.findAndCountAll({where: req.body});
    if (articleCount === 1) return res.status(400).json({message: "Article already exists"});

    // Create article
    res.status(200).json(await Article.create(req.body));
});

app.delete("/", checkPermission("admin.article.delete"), async (req, res) => {
    // Validate request
    const {error} = articleValidation.info.validate(req.body);
    if (error) return res.status(400).json({message: error.details[0].message});

    // Check if already exists
    const {count: articleCount} = await Article.findAndCountAll({where: req.body});
    if (articleCount === 0) return res.status(400).json({message: "Article does not exist"});

    // Delete the article
    await Article.destroy({where: req.body});
    res.status(200).json({message: "Article deleted successfully"});
});

app.get("/:articleId", checkPermission("admin.article.info"), async (req, res) => {
    // Validate request
    if (!req.params.articleId) return res.status(400).json({message: "Missing article id"});

    // Get the article information
    const info = await Article.findByPk(req.params.articleId);

    if (info) {
        res.status(200).json(info);
    } else res.status(404).json({message: "Article not found"});
});

app.get("/:moduleName/list", checkPermission("articles.list"), async (req, res) => {
    // Validate request
    if (!req.params.moduleName) return res.status(400).json({message: "Module name is required"});

    // Get the article
    const list = await Article.findAndCountAll({where: {moduleName: req.params.moduleName}});

    if (list) {
        res.status(200).json(list.rows);
    } else res.status(404).json({message: "No articles found"});
});

app.get("/:moduleName/:articleId", checkPermission("admin.article.info"), async (req, res) => {
    // Validate request
    if (!req.params.moduleName) return res.status(400).json({message: "Missing module name"});
    if (!req.params.articleId) return res.status(400).json({message: "Missing article id"});

    // Get the article information
    const info = await Article.findOne({where: {moduleName: req.params.moduleName, articleId: req.params.articleId}});

    if (info) {
        res.status(200).json(info);
    } else res.status(404).json({message: "Article not found"});
});

module.exports = app;