JacobGrisham/YelpCamp

var express = require("express");
var    router = express.Router({mergeParams: true});
var Campground = require("../models/campground");
var Comment = require("../models/comment");
var middleware = require("../middleware"); // Note that the default file in a directory is index.js. Therefore, we don't need to write out ("../middleware/index.js") 


// COMMENTS NEW
router.get("/new", middleware.isLoggedIn, function(req, res){
    // find campground by id first
    Campground.findById(req.params.id, function(err, campground){
        if(err){
            console.log(err);
        } else {
            res.render("comments/new", {
                campground: campground,
                title: `Add Comment to ${campground.name}`,
                description: `Engage the community by adding a comment to ${campground.name}`,
            });
        }
    });
    
});

// COMMENTS CREATE
router.post("/", middleware.isLoggedIn, function(req, res){
    // First lookup campground using id
    Campground.findById(req.params.id, function(err, campground){
        if(err){
            console.log(err);
            res.redirect("/campgrounds");
        } else {
            // Second create new comment
            Comment.create(req.body.comment, function(err, comment){
                if(err){
                    req.flash("error", "Sorry, something went wrong");
                } else {
                    // Third add username to comment
                    comment.author.id = req.user._id;
                    comment.author.username = req.user.username;
                    // Fourth save the comment
                    comment.save();
                    // Fourth connect new comment to campground
                    campground.comments.push(comment);
                    campground.save();
                    req.flash("success", "Comment added");
                    // Fourth redirect back to the campground show page
                    res.redirect("/campgrounds/" + campground._id);
                }
            });
        }
    });
});

// COMMENTS EDIT ROUTE
router.get("/:comment_id/edit", function(req, res){
    Comment.findById(req.params.comment_id, function(err, foundComment){
        if(err){
            res.redirect("back");
        } else {
            Campground.findById(req.params.id, function(err, foundCampground){
                if (err){
                    console.log(err);
                } else {
                    res.render("comments/edit", {
                        campground: foundCampground,
                        title: `Edit Comment for ${foundCampground.name}`,
                        comment: foundComment,
                        description: `Edit your comment for ${foundCampground.name}. Perhaps there was a misspelling or another reason.`,
                    });
                }
            });
        }
    });
});

// COMMENTS UPDATE ROUTE
router.put("/:comment_id", function(req, res){
    Comment.findByIdAndUpdate(req.params.comment_id, req.body.comment, function(err, updatedComment){
        if(err){
            res.redirect("back");
        } else {
            // Second redirect to the show page. We need to add the Id.
            // We can use req.params.id or updatedCampground._id
            req.flash("success", "Comment edited");
            res.redirect("/campgrounds/" + req.params.id);
        }
    });
})

// COMMENTS DESTROY ROUTE
router.delete("/:comment_id", function(req, res){
    // Find by ID and remove
    Comment.findByIdAndRemove(req.params.comment_id, function(err){
        if(err){
            res.redirect("back");
        } else {
            req.flash("success", "Comment deleted");
            res.redirect("/campgrounds/" + req.params.id);
        }
    });
});

module.exports = router;