server/backend/choices.go

package main

import (
	"encoding/json"
	"log"
	"io/ioutil"
	"os"

	"srs.epita.fr/fic-server/libfic"
)

type wantChoices struct {
	FlagId       int64 `json:"id"`
}

func treatWantChoices(pathname string, team fic.Team) {
	var ask wantChoices

	if cnt_raw, err := ioutil.ReadFile(pathname); err != nil {
		log.Println("[ERR]", err)
	} else if err = json.Unmarshal(cnt_raw, &ask); err != nil {
		log.Println("[ERR]", err)
	} else if ask.FlagId == 0 {
		log.Println("[WRN] Invalid content in wantChoices file: ", pathname)
		os.Remove(pathname)
	} else if flag, err := fic.GetFlagKey(ask.FlagId); err != nil {
		log.Println("[ERR]", err)
	} else if !team.CanSeeFlag(flag) {
		log.Println("[!!!] The team asks to display choices whereas it doesn't have access to the flag")
	} else if exercice, err := flag.GetExercice(); err != nil {
		log.Println("[ERR] Unable to retrieve the flag's underlying exercice:", err)
	} else if !team.HasAccess(exercice) {
		log.Println("[!!!] The team asks to display choices whereas it doesn't have access to the exercice")
	} else if err = team.DisplayChoices(flag); err != nil {
		log.Println("[ERR]", err)
	} else {
		if err = genTeamMyFile(team); err != nil {
			log.Println("my-", team.Id, ".json generation error: ", err)
		}
		if err = os.Remove(pathname); err != nil {
			log.Println("[ERR]", err)
		}
	}
}