package api

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

	"github.com/gorilla/mux"
)

func (h APIHandler) GetCache(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	cacheid := vars["cacheid"]

	d, err := h.cache.Get(cacheid)
	if err != nil {
		fmt.Println(err)
		w.WriteHeader(http.StatusNotFound)
		return
	}

	result := d

	if data, ok := d.([]any); ok {
		if limitsmin, ok := r.URL.Query()["limits.min"]; ok {
			min, _ := strconv.Atoi(limitsmin[0])
			if limitsmax, ok := r.URL.Query()["limits.max"]; ok {
				max, _ := strconv.Atoi(limitsmax[0])
				if max > len(data) {
					result = data[min:]
				} else {
					result = data[min:max]
				}
			} else {
				result = data[min:]
			}
		}
	}

	j, err := json.Marshal(result)
	if err != nil {
		w.WriteHeader(http.StatusNotFound)
		return
	}

	w.WriteHeader(http.StatusOK)
	w.Header().Set("Content-Type", "application/json")
	w.Write(j)

}