package controllers

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strconv"

	"forgejo.merr.is/annika/isl-api/entities"
	"forgejo.merr.is/annika/isl-api/services"
	"github.com/go-chi/chi/v5"
)

type PowerItemController struct {
	powerItemService *services.PowerItemService
}

func NewPowerItemController(powerItemService *services.PowerItemService) *PowerItemController {
	controller := &PowerItemController{
		powerItemService: powerItemService,
	}
	return controller
}

func (p *PowerItemController) Add(w http.ResponseWriter, r *http.Request) {
	var newItem entities.PowerItem
	err := json.NewDecoder(r.Body).Decode(&newItem)
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	result, err := p.powerItemService.Add(newItem)
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	returnValue, err := json.Marshal(result)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	fmt.Fprint(w, string(returnValue))
}

func (p *PowerItemController) AddMultiple(w http.ResponseWriter, r *http.Request) {
	var itemType int32 = 3
	var newItems map[string]entities.PowerItem
	err := json.NewDecoder(r.Body).Decode(&newItems)
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	added, errors := p.powerItemService.AddMultipile(newItems, itemType)
	if len(errors) != 0 {
		http.Error(w, "Could not add item", http.StatusInternalServerError)
		for _, err := range errors {
			fmt.Println(err.Error())
		}
		return
	}

	returnValue, err := json.Marshal(added)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	fmt.Fprint(w, string(returnValue))
}

func (p *PowerItemController) GetAll(w http.ResponseWriter, r *http.Request) {
	result, err := p.powerItemService.GetAll()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	data, err := json.Marshal(result)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	fmt.Fprint(w, string(data))
}

func (p *PowerItemController) GetAllAsMap(w http.ResponseWriter, r *http.Request) {
	items, err := p.powerItemService.GetAll()
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	resultMap := make(map[string]entities.PowerItem)
	for _, curItem := range items {
		uuid := fmt.Sprintf("%x-%x-%x-%x-%x", curItem.ID.Bytes[0:4], curItem.ID.Bytes[4:6], curItem.ID.Bytes[6:8], curItem.ID.Bytes[8:10], curItem.ID.Bytes[10:16])
		resultMap[uuid] = curItem
	}

	data, err := json.Marshal(resultMap)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	fmt.Fprint(w, string(data))
}

func (p *PowerItemController) GetAllByType(w http.ResponseWriter, r *http.Request) {
	typeCode, err := strconv.Atoi(chi.URLParam(r, "type"))
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	result, err := p.powerItemService.GetAllByType(typeCode)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	data, err := json.Marshal(result)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	fmt.Fprint(w, string(data))
}

func (p *PowerItemController) GetAllByTypeAsMap(w http.ResponseWriter, r *http.Request) {
	typeCode, err := strconv.Atoi(chi.URLParam(r, "type"))
	if err != nil {
		http.Error(w, err.Error(), http.StatusBadRequest)
		return
	}

	items, err := p.powerItemService.GetAllByType(typeCode)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	resultMap := make(map[string]entities.PowerItem)
	for _, curItem := range items {
		uuid := fmt.Sprintf("%x-%x-%x-%x-%x", curItem.ID.Bytes[0:4], curItem.ID.Bytes[4:6], curItem.ID.Bytes[6:8], curItem.ID.Bytes[8:10], curItem.ID.Bytes[10:16])
		resultMap[uuid] = curItem
	}

	data, err := json.Marshal(resultMap)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	w.Header().Add("Content-Type", "application/json")
	fmt.Fprint(w, string(data))
}