package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"math/rand"
	"os"
	"path"

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

type uTeamRegistration struct {
	TeamName string
	Members  []fic.Member
}

func treatRegistration(pathname string, team_id string) {
	var nTeam uTeamRegistration

	if cnt_raw, err := ioutil.ReadFile(pathname); err != nil {
		log.Println("[ERR]", err)
	} else if err := json.Unmarshal(cnt_raw, &nTeam); err != nil {
		log.Println("[ERR]", err)
	} else if validTeamName(nTeam.TeamName) {
		if team, err := fic.CreateTeam(nTeam.TeamName, uint32(rand.Int31n(16581376))); err != nil {
			log.Printf("[ERR] Unable to register new team %s: %s\n", nTeam.TeamName, err)
		} else {
			for _, m := range nTeam.Members {
				// Force Id to 0, as it shouldn't have been defined yet
				m.Id = 0
				if err := team.GainMember(m); err != nil {
					log.Println("[WRN] Unable to add member (", m, ") to team (", team, "): ", err)
				}
			}

			if err := os.Remove(pathname); err != nil {
				log.Println("[WRN]", err)
			}
			if _, err := fic.NewEvent(fmt.Sprintf("Souhaitons bonne chance à l'équipe <strong>%s</strong> qui vient de nous rejoindre !", team.Name), "alert-info"); err != nil {
				log.Println("[WRN] Unable to create event:", err)
			}

			teamDirPath := fmt.Sprintf("%d", team.Id)

			// Create team directories into TEAMS
			if err := os.MkdirAll(path.Join(TeamsDir, teamDirPath), 0777); err != nil {
				log.Println("[ERR]", err)
			}
			if err := os.Symlink(teamDirPath, path.Join(TeamsDir, team_id)); err != nil {
				log.Println("[ERR]", err)
			}

			// Create team directories into submissions
			if err := os.MkdirAll(path.Join(SubmissionDir, teamDirPath), 0777); err != nil {
				log.Println("[ERR]", err)
			}
			if err := os.Symlink(teamDirPath, path.Join(SubmissionDir, team_id)); err != nil {
				log.Println("[ERR]", err)
			}

			go func() {
				if err := genTeamMyFile(team); err != nil {
					log.Println("Team generation error: ", err)
				}
				if err := genEventsFile(); err != nil {
					log.Println("events.json generation error: ", err)
				}
				if err := genTeamsFile(); err != nil {
					log.Println("teams.json generation error: ", err)
				}
			}()
		}
	}
}