const express = require('express');
const config = require('../../config')
const data = require('../data')
const func = require('../functions')

const { fromUnixTime, format, getUnixTime } = require("date-fns") // A date utility library
const router = express.Router();

///////////////////// Standard Pages //////////////////////

// Timeline
router.get(config.site_path, (req,res) => {
	// Increment the hitcount
	if (config.enable_hitcount) {
		data.increment_hitcount()
	}

	res.render("pages/timeline",
	{
		config,
		locale,
		posts: data.getdata("posts"),
		users: data.getdata("users"),
		comments: data.getdata("comments"),
		hitcount: data.getdata("hitcount"),
		fromUnixTime,
		format,
		getUnixTime,
		func,
	})
}); // /

// Users
router.get(`${config.site_path}/user/:username`, (req, res) => {
	const userID = func.get_userID(req.params.username)
	let posts = data.getdata('posts', 'userID', userID);
	let user = data.getdata('users', 'id', userID)[0];
	if (userID != -1) {
		res.render("pages/user",
		{
			config,
			locale,
			posts,
			user,
			userID: userID,
			comments: data.getdata('comments', 'postID'),
			fromUnixTime,
			format,
			getUnixTime,
			func,
		})
	}
	else if (userID == -1) {
		res.render("partials/message",
		{
			message: locale.user_doesnt_exist,
			config,
		})
	}
}); // /user/:username

// Posts
router.get(`${config.site_path}/post/:post_index`, (req, res) => {
	const postID = parseInt(req.params.post_index)
	let post = data.getdata('posts','id', postID)[0]
	if (post == 1) { // data.getdata returns error code 1 if nothing is available
		res.render("partials/message", {
			message: locale.post_doesnt_exist,
			config,
		})
	}
	else if (typeof post["deleted"] == "undefined" || post["deleted"] == false) {
		if (config.enable_hitcount) {
			data.increment_hitcount(postID)
		}
		res.render("pages/post",
		{
			config,
			locale,
			post,
			postID,
			user: data.getdata('users','id', post.userID)[0],
			comments: data.getdata('comments','id', postID)[0]["comments"],
			fromUnixTime,
			format,
			getUnixTime,
			func,
		})
	}
	else {
		console.log("Error loading page")
		res.redirect(301,"/")
	}
}); // /post/:post_index


// Tags
router.get(`${config.site_path}/tag/:tag`, (req,res) => {
	const tag = req.params.tag
	res.render("pages/tag",
	{
		config,
		locale,
		tag,
		posts: data.getdata('posts'),
		users: data.getdata('users'),
		comments: data.getdata('comments'),
		fromUnixTime,
		format,
		getUnixTime,
		func,
	})
}); // /tag/:tag


// Comments
router.get(`${config.site_path}/comment/:postID-:commentID`, (req,res) => {
	const commentID = parseInt(req.params.commentID);
	const postID = parseInt(req.params.postID);

	let posts_comments = data.getdata('comments', 'id', postID)[0]["comments"]
	let comment = 1
	// For loop to find the comment with matching ID
	posts_comments.forEach((current_comment, index) => {
		if (current_comment.id == commentID) {
			comment = posts_comments[index]
		}
	})
	// If comment doesn't exist, show error
	if (comment == 1 || posts_comments == 1) { // Comment of this ID was not found
		res.render("partials/message", {
			config,
			message: locale.comment_doesnt_exist,
		})
	}
	else {
		res.render("pages/comment",
		{
			config,
			locale,
			comment,
			postID,
			commentID,
			fromUnixTime,
			format,
			getUnixTime,
			func,
		})
	}
});

module.exports = router;