package handlers

import (
	"net/http"
	"strconv"

	"github.com/danilsolovyov/croupierCbrf/internal/dal"
	"github.com/danilsolovyov/croupierCbrf/internal/utils"
)

func (h *Handler) GetQuotes(w http.ResponseWriter, r *http.Request) {
	result, err := h.mongo.GetQuoteList(r.Context())
	if err != nil {
		h.reportError(w, r, http.StatusInternalServerError, err.Error(), err)
		return
	}

	h.sendResponse(w, r, Response{
		Success: true,
		Message: result,
	})
}

func (h *Handler) Translate(response http.ResponseWriter, request *http.Request) {
	params := request.URL.Query()

	currencyFrom := params.Get("currencyFrom")
	currencyTo := params.Get("currencyTo")
	value := params.Get("value")

	if currencyFrom == "" {
		currencyFrom = dal.DefaultCurrency
	}

	if currencyTo == "" {
		currencyTo = dal.DefaultCurrency
	}

	parsedValue, err := strconv.ParseInt(value, 10, 64)
	if err != nil {
		h.reportError(response, request, http.StatusBadRequest, "invalid value format", err)

		return
	}

	quotes, err := h.mongo.GetQuoteList(request.Context())
	if err != nil {
		h.reportError(response, request, http.StatusInternalServerError, err.Error(), err)
		return
	}

	quotesMap := utils.ArrayToMap(quotes, func(quote dal.Quote) string {
		return quote.ID
	})

	result, err := utils.CurrencyExchange(quotesMap, currencyFrom, currencyTo, parsedValue)
	if err != nil {
		h.reportError(response, request, http.StatusInternalServerError, err.Error(), err)
	}

	h.sendResponse(response, request, Response{
		Success: true,
		Message: result,
	})
}