package main

import (
	"encoding/json"
	"log"
	"net/http"

	"git.tertyshny.dev/fotonmoton/cards/validation"
)

type ValidatePayload struct {
	Pan   string `json:"pan"`
	Month string `json:"month"`
	Year  string `json:"year"`
}

type ValidationResponse struct {
	Status int    `json:"status"`
	Error  string `json:"error"`
}

func validate(w http.ResponseWriter, r *http.Request) {
	var payload ValidatePayload
	var response ValidationResponse
	decoder := json.NewDecoder(r.Body)
	err := decoder.Decode(&payload)

	if err != nil {
		response = ValidationResponse{
			-1,
			err.Error(),
		}
	} else {
		result := validation.Validate(validation.Card{payload.Pan, payload.Month, payload.Year})
		response = ValidationResponse{result.Code, result.Error.Error()}
	}

	// todo: correct response type and code
	json.NewEncoder(w).Encode(response)
}

func main() {
	http.HandleFunc("POST /validate", validate)

	log.Fatal(http.ListenAndServe(":8080", nil))
}