package context

import (
	"lishwist/auth"
	"log"
	"net/http"
)

type Context struct {
	Auth *auth.AuthMiddleware
}

func (ctx *Context) WishlistAdd(w http.ResponseWriter, r *http.Request) {
	user := ctx.Auth.ExpectUser(r)
	if err := r.ParseForm(); err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}
	newGiftName := r.Form.Get("gift_name")
	err := user.AddGift(newGiftName)
	if err != nil {
		log.Printf("Failed to add gift: %s\n", err)
		http.Error(w, "Failed to add gift.", http.StatusInternalServerError)
		return
	}
	http.Redirect(w, r, "/", http.StatusSeeOther)
}

func (ctx *Context) WishlistDelete(w http.ResponseWriter, r *http.Request) {
	user := ctx.Auth.ExpectUser(r)
	if err := r.ParseForm(); err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}
	targets := r.Form["gift"]
	err := user.RemoveGifts(targets...)
	if err != nil {
		log.Printf("Failed to remove gifts: %s\n", err)
		http.Error(w, "Failed to remove gifts.", http.StatusInternalServerError)
		return
	}
	http.Redirect(w, r, "/", http.StatusSeeOther)
}

func (ctx *Context) updateClaims(w http.ResponseWriter, r *http.Request) {
	user := ctx.Auth.ExpectUser(r)
	userReference := r.PathValue("userReference")
	claims := r.Form["unclaimed"]
	unclaims := r.Form["claimed"]
	err := user.ClaimGifts(claims, unclaims)
	if err != nil {
		http.Error(w, "Failed to update claim...", http.StatusInternalServerError)
		return
	}
	http.Redirect(w, r, "/"+userReference, http.StatusSeeOther)
}

func (ctx *Context) completeGifts(w http.ResponseWriter, r *http.Request) {
	user := ctx.Auth.ExpectUser(r)
	userReference := r.PathValue("userReference")
	claims := r.Form["claimed"]
	err := user.CompleteGifts(claims)
	if err != nil {
		http.Error(w, "Failed to complete gifts...", http.StatusInternalServerError)
		return
	}
	http.Redirect(w, r, "/"+userReference, http.StatusSeeOther)
}

func (ctx *Context) UpdateForeignWishlist(w http.ResponseWriter, r *http.Request) {
	if err := r.ParseForm(); err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}
	switch r.Form.Get("mode") {
	case "claim":
		ctx.updateClaims(w, r)
	case "complete":
		ctx.completeGifts(w, r)
	default:
		http.Error(w, "Invalid mode", http.StatusBadRequest)
	}
}