package main

import (
	"context"
	"flag"
	"fmt"
	"net/http"
	"os"
	"os/signal"
	"path"
	"strconv"
	"syscall"

	"git.defalsify.org/vise.git/engine"
	"git.defalsify.org/vise.git/lang"
	"git.defalsify.org/vise.git/logging"
	"git.defalsify.org/vise.git/resource"

	"git.grassecon.net/grassrootseconomics/sarafu-vise/config"
	httprequest "git.grassecon.net/grassrootseconomics/visedriver/request/http"
	"git.grassecon.net/grassrootseconomics/visedriver/request"
	"git.grassecon.net/grassrootseconomics/visedriver/storage"

	"git.grassecon.net/grassrootseconomics/sarafu-vise/services"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/args"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/handlers"
)

var (
	logg          = logging.NewVanilla()
	scriptDir     = path.Join("services", "registration")
	menuSeparator = ": "
)

func main() {
	config.LoadConfig()

	var override config.Override
	var size uint
	var engineDebug bool
	var host string
	var port uint
	var err error
	var gettextDir string
	var langs args.LangVar

	flag.StringVar(override.DbConn, "c", "?", "default connection string (replaces all unspecified strings)")
	flag.StringVar(override.ResourceConn, "resource", "?", "resource connection string")
	flag.StringVar(override.UserConn, "userdata", "?", "userdata store connection string")
	flag.StringVar(override.StateConn, "state", "?", "state store connection string")

	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
	flag.UintVar(&size, "s", 160, "max size of output")
	flag.StringVar(&host, "h", config.Host(), "http host")
	flag.UintVar(&port, "p", config.Port(), "http port")
	flag.StringVar(&gettextDir, "gettext", "", "use gettext translations from given directory")
	flag.Var(&langs, "language", "add symbol resolution for language")
	flag.Parse()

	config.Apply(&override)
	conns, err := config.GetConns()
	if err != nil {
		fmt.Fprintf(os.Stderr, "conn specification error: %v\n", err)
		os.Exit(1)
	}

	logg.Infof("start command", "conn", conns, "outputsize", size)

	ctx := context.Background()

	ln, err := lang.LanguageFromCode(config.Language())
	if err != nil {
		fmt.Fprintf(os.Stderr, "default language set error: %v", err)
		os.Exit(1)
	}
	ctx = context.WithValue(ctx, "Language", ln)

	pfp := path.Join(scriptDir, "pp.csv")

	cfg := engine.Config{
		Root:          "root",
		OutputSize:    uint32(size),
		FlagCount:     uint32(128),
		MenuSeparator: menuSeparator,
	}

	if engineDebug {
		cfg.EngineDebug = true
	}

	menuStorageService := storage.NewMenuStorageService(conns)

	rs, err := menuStorageService.GetResource(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	userdataStore, err := menuStorageService.GetUserdataDb(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	dbResource, ok := rs.(*resource.DbResource)
	if !ok {
		os.Exit(1)
	}

	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
	lhs.SetDataStore(&userdataStore)

	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	accountService := services.New(ctx, menuStorageService)
	
	hl, err := lhs.GetHandler(accountService)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	stateStore, err := menuStorageService.GetStateStore(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	//accountService := services.New(ctx, menuStorageService, connData)

	rp := &httprequest.DefaultRequestParser{}
	bsh := request.NewBaseRequestHandler(cfg, rs, stateStore, userdataStore, rp, hl)
	sh := httprequest.NewHTTPRequestHandler(bsh)
	s := &http.Server{
		Addr:    fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
		Handler: sh,
	}
	shutdownFunc := func() {
		sh.Shutdown(ctx)
	}
	s.RegisterOnShutdown(shutdownFunc)

	cint := make(chan os.Signal)
	cterm := make(chan os.Signal)
	signal.Notify(cint, os.Interrupt, syscall.SIGINT)
	signal.Notify(cterm, os.Interrupt, syscall.SIGTERM)
	go func() {
		select {
		case _ = <-cint:
		case _ = <-cterm:
		}
		s.Shutdown(ctx)
	}()
	err = s.ListenAndServe()
	if err != nil {
		logg.Infof("Server closed with error", "err", err)
	}
}