ampelmaennchen.git

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package main

import (
	"apiote.xyz/p/ampelmaennchen/accounts"
	"apiote.xyz/p/ampelmaennchen/config"
	"apiote.xyz/p/ampelmaennchen/db"
	"apiote.xyz/p/ampelmaennchen/matrix"
	"apiote.xyz/p/ampelmaennchen/server"

	"crypto/ed25519"
	"fmt"
	"log"
	"os"

	"git.sr.ht/~sircmpwn/getopt"
)

var (
	recreateRegistration bool
	command              string
	configPath           string = "./config.toml"
)

func parseArgs() {
	opts, optind, err := getopt.Getopts(os.Args, "rc:")
	if err != nil {
		log.Fatalf("while getopts: %v", err)
	}
	for _, opt := range opts {
		switch opt.Option {
		case 'r':
			recreateRegistration = true
		case 'c':
			configPath = opt.Value
		}
	}
	for i, arg := range os.Args[optind:] {
		if i == 0 {
			command = arg
		}
	}
}

func main() {
	parseArgs()
	cfg, err := config.Load(configPath)
	if err != nil {
		log.Fatalf("while loading config: %v", err)
	}

	err = db.Connect(cfg.Database.Uri())
	if err != nil {
		log.Fatalf("while connecting to db: %v", err)
	}
	defer db.Close()
	err = db.Migrate()
	if err != nil {
		log.Fatalf("while migrating: %v", err)
	}

	registrationExists, err := matrix.RegistrationExists()
	if err != nil {
		log.Fatalf("while checking existing registration: %v", err)
	}

	as, err := matrix.CreateAppService(cfg.Matrix, recreateRegistration)
	if err != nil {
		log.Fatalf("while creating app service: %v", err)
	}

	if !registrationExists || recreateRegistration {
		registration, err := as.Registration.YAML()
		if err != nil {
			log.Fatalf("while generating registration yaml: %v", err)
		}
		err = os.WriteFile("registration.yml", []byte(registration), 0o644)
		if err != nil {
			log.Fatalf("while saving registration yaml: %v", err)
		}
		fmt.Println("Registration has been saved to registration.yml file")
		return
	}

	err = matrix.ConfigureBot(as, cfg.Matrix)
	log.Println(err)

	spaceID, err := matrix.CreateSpace(as, cfg.Matrix)
	log.Println(err)
	err = matrix.CreatePublicRoom(as, cfg.Matrix, spaceID)
	log.Println(err)
	err = matrix.CreatePatronsRoom(as, cfg.Matrix, spaceID)
	log.Println(err)
	err = matrix.CreateHeadOfficeRoom(as, cfg.Matrix, spaceID)
	log.Println(err)

	hasKeys, err := db.HasSubscriptionKey()
	if err != nil {
		log.Println(err)
		os.Exit(1)
	}
	if !hasKeys {
		_, private, err := ed25519.GenerateKey(nil)
		if err != nil {
			log.Println(err)
			os.Exit(1)
		}
		err = db.SaveSubscriptionKey(private.Seed())
		if err != nil {
			log.Println(err)
			os.Exit(1)
		}
	}

	switch command {
	case "serve":
		server.Route(cfg.Server.Host, cfg.Server.Port)
	case "csub":
		var (
			planRaw  string
			plan     accounts.Seat
			validity int
			err      error
		)
		fmt.Printf("Plan (back, window, front, driver, pilot, garage): ")
		fmt.Scanf("%s", &planRaw)
		if plan, err = accounts.ParseSeat(planRaw); err != nil {
			log.Printf("error parsing plan: %v\n", err)
			os.Exit(1)
		}
		fmt.Printf("Validity (in months): ")
		fmt.Scanf("%d", &validity)
		keySeed, err := db.GetSubscriptionKey()
		if err != nil {
			log.Printf("while marshalling unsigned subscription: %w", err)
			os.Exit(1)
		}
		err = accounts.CreateSubscription(plan, validity, keySeed)
		if err != nil {
			log.Printf("while creating subscription: %v\n", err)
			os.Exit(1)
		}
	}
}