package main

import (
	"flag"
	"fmt"
	"log"
	"net/http"
	"time"

	"git.ofmax.li/go-git-server/internal/admin"
	"git.ofmax.li/go-git-server/internal/authz"
	"git.ofmax.li/go-git-server/internal/git"
)

var (
	reposDir         = *flag.String("r", "./repos", "Directory containing git repositories")
	mgmtRepo         = *flag.Bool("a", true, "mgmt repo used for configuration")
	backendCommand   = *flag.String("c", "git http-backend", "CGI binary to execute")
	addr             = *flag.String("l", ":8080", "Address/port to listen on")
	modelPath        = *flag.String("m", "./auth_model.ini", "Authentication model")
	policyPath       = *flag.String("p", "./policy.csv", "auth policy")
	serverConfigPath = *flag.String("s", "/gitserver.yaml", "serverconfig path")
	newToken         = *flag.Bool("t", false, "make a new token")
	// TODO what was my intent here?
	// updatePolicies   = flag.Bool("u", false, "update policies")
)

func main() {
	flag.Parse()
	if newToken {
		token, hash, err := authz.GenerateNewToken()
		if err != nil {
			log.Fatal(err)
		}
		fmt.Printf("token: %s\nhash: %s\n", token, hash)
		return
	}
	adminSvc := admin.NewService(modelPath, policyPath, serverConfigPath, reposDir, mgmtRepo)
	adminSvc.InitServer()
	tokens := authz.NewTokenMap()
	err := tokens.LoadTokensFromFile("./tokens.csv")
	if err != nil {
		log.Fatal(err)
	}
	router := http.NewServeMux()
	// TODO we don't want to use a global
	// de-reference args
	router.Handle("/mgmt/", admin.Hooks(adminSvc, git.GitHttpBackendHandler(reposDir, backendCommand)))
	router.Handle("/", git.GitHttpBackendHandler(reposDir, backendCommand))
	mux := authz.Authentication(tokens, authz.Authorization(adminSvc, router))
	server := &http.Server{
		Addr:              addr,
		ReadHeaderTimeout: 5 * time.Second,
		Handler:           mux,
	}
	log.Fatal(server.ListenAndServe())
}