Tasks/views/deleteViews.go

package views

/*
Holds the delete related view handlers
*/

import (
	"log"
	"net/http"
	"strconv"

	"github.com/thewhitetulip/Tasks/db"
	"github.com/thewhitetulip/Tasks/sessions"
	"github.com/thewhitetulip/Tasks/utils"
)

//TrashTaskFunc is used to populate the trash tasks
func TrashTaskFunc(w http.ResponseWriter, r *http.Request) {
	//for best UX we want the user to be returned to the page making
	//the delete transaction, we use the r.Referer() function to get the link
	redirectURL := utils.GetRedirectUrl(r.Referer())

	if sessions.IsLoggedIn(r) {
		if r.Method == "GET" {
			id, err := strconv.Atoi(r.URL.Path[len("/trash/"):])
			if err != nil {
				log.Println("TrashTaskFunc", err)
				message = "Incorrect command"
				http.Redirect(w, r, redirectURL, http.StatusFound)
			} else {
				err = db.TrashTask(id)
				if err != nil {
					message = "Error trashing task"
				} else {
					message = "Task trashed"
				}
				http.Redirect(w, r, redirectURL, http.StatusFound)
			}
		}
	} else {
		http.Redirect(w, r, "/login/", 302)
	}
}

//RestoreTaskFunc is used to restore task from trash, handles "/restore/" URL
func RestoreTaskFunc(w http.ResponseWriter, r *http.Request) {
	if sessions.IsLoggedIn(r) {
		if r.Method == "GET" {
			id, err := strconv.Atoi(r.URL.Path[len("/restore/"):])
			if err != nil {
				log.Println(err)
				http.Redirect(w, r, "/deleted", http.StatusBadRequest)
			} else {
				err = db.RestoreTask(id)
				if err != nil {
					message = "Restore failed"
				} else {
					message = "Task restored"
				}
				http.Redirect(w, r, "/deleted/", http.StatusFound)
			}
		}
	} else {
		http.Redirect(w, r, "/login/", 302)
	}
}

//DeleteTaskFunc is used to delete a task, trash = move to recycle bin, delete = permanent delete
func DeleteTaskFunc(w http.ResponseWriter, r *http.Request) {
	if sessions.IsLoggedIn(r) {
		if r.Method == "GET" {
			id := r.URL.Path[len("/delete/"):]
			if id == "all" {
				err := db.DeleteAll()
				if err != nil {
					message = "Error deleting tasks"
					http.Redirect(w, r, "/", http.StatusInternalServerError)
				}
				http.Redirect(w, r, "/", http.StatusFound)
			} else {
				id, err := strconv.Atoi(id)
				if err != nil {
					log.Println(err)
					http.Redirect(w, r, "/", http.StatusBadRequest)
				} else {
					err = db.DeleteTask(id)
					if err != nil {
						message = "Error deleting task"
					} else {
						message = "Task deleted"
					}
					http.Redirect(w, r, "/deleted", http.StatusFound)
				}
			}
		}
	} else {
		http.Redirect(w, r, "/login/", 302)
	}
}

//RestoreFromCompleteFunc restores the task from complete to pending
func RestoreFromCompleteFunc(w http.ResponseWriter, r *http.Request) {
	if sessions.IsLoggedIn(r) {
		if r.Method == "GET" {
			id, err := strconv.Atoi(r.URL.Path[len("/incomplete/"):])
			if err != nil {
				log.Println(err)
				http.Redirect(w, r, "/completed", http.StatusBadRequest)
			} else {
				err = db.RestoreTaskFromComplete(id)
				if err != nil {
					message = "Restore failed"
				} else {
					message = "Task restored"
				}
				http.Redirect(w, r, "/completed", http.StatusFound)
			}
		}
	} else {
		http.Redirect(w, r, "/login/", 302)
	}
}

//DeleteCategoryFunc will delete any category
func DeleteCategoryFunc(w http.ResponseWriter, r *http.Request) {
	if sessions.IsLoggedIn(r) {
		if r.Method == "GET" {
			categoryName := r.URL.Path[len("/del-category/"):]
			err := db.DeleteCategoryByName(categoryName)
			if err != nil {
				message = "error deleting category"
			} else {
				message = "Category " + categoryName + " deleted"
			}

			http.Redirect(w, r, "/", http.StatusFound)
		}
	} else {
		http.Redirect(w, r, "/login/", 302)
	}
}

//DeleteCommentFunc will delete any category
func DeleteCommentFunc(w http.ResponseWriter, r *http.Request) {
	if sessions.IsLoggedIn(r) {
		if r.Method == "GET" {
			id := r.URL.Path[len("/del-comment/"):]
			commentID, err := strconv.Atoi(id)
			if err != nil {
				http.Redirect(w, r, "/", http.StatusBadRequest)
				return
			}

			err = db.DeleteCommentByID(commentID)

			if err != nil {
				message = "comment not deleted"
			} else {
				message = "comment deleted"
			}

			http.Redirect(w, r, "/", http.StatusFound)
		}
	} else {
		http.Redirect(w, r, "/login/", 302)
	}
}