package cmd

import (
	"context"
	"flag"
	"os"
	"show-rss/src/cleanup"
	"show-rss/src/db"
	"show-rss/src/server"
)

type Flags struct {
	DB         string
	Port       int
	Entrypoint Entrypoint
	Pos        []string
}

func NewFlags(args []string) (Flags, error) {
	var result Flags

	fs := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
	fs.StringVar(&result.DB, "db", "/tmp/f.db", "path to sqlite.db")
	fs.IntVar(&result.Port, "p", 10000, "port for http")
	fs.Var(&result.Entrypoint, "e", "entrypoint")
	err := fs.Parse(args)
	result.Pos = fs.Args()

	return result, err
}

func Config(ctx context.Context, args []string) (context.Context, func(), Flags, error) {
	flags, err := NewFlags(args)
	if err != nil {
		return ctx, nil, flags, err
	}

	ctx, err = db.Inject(ctx, flags.DB)
	if err != nil {
		return ctx, nil, flags, err
	}

	ctx = server.Inject(ctx, flags.Port)

	return ctx, func() {
		cleanup.Extract(ctx)()
	}, flags, nil
}