// Copyright 2018 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.

package ui  // import "miniflux.app/ui"

import (
	"net/http"

	"miniflux.app/http/context"
	"miniflux.app/http/request"
	"miniflux.app/http/response"
	"miniflux.app/http/response/html"
	"miniflux.app/http/route"
)

// RemoveCategory deletes a category from the database.
func (c *Controller) RemoveCategory(w http.ResponseWriter, r *http.Request) {
	ctx := context.New(r)

	user, err := c.store.UserByID(ctx.UserID())
	if err != nil {
		html.ServerError(w, err)
		return
	}

	categoryID, err := request.IntParam(r, "categoryID")
	if err != nil {
		html.BadRequest(w, err)
		return
	}

	category, err := c.store.Category(ctx.UserID(), categoryID)
	if err != nil {
		html.ServerError(w, err)
		return
	}

	if category == nil {
		html.NotFound(w)
		return
	}

	if err := c.store.RemoveCategory(user.ID, category.ID); err != nil {
		html.ServerError(w, err)
		return
	}

	response.Redirect(w, r, route.Path(c.router, "categories"))
}