package beerpongelo

import (
	"encoding/json"
	"log"
	"net/http"
	"os"

	"git.kapelle.org/niklas/beerpong-elo/internal/model"
	"git.kapelle.org/niklas/beerpong-elo/internal/repo"
	"git.kapelle.org/niklas/beerpong-elo/internal/web"
)

type Config struct {
	DBHost     string
	DBUsername string
	DBPassword string
	DBName     string
	Address    string
}

func Start(config Config) {
	repo, err := repo.NewSQLRepo(config.DBHost, config.DBUsername, config.DBPassword, config.DBName)

	if err != nil {
		log.Fatalf("Failed to start server: %s", err)
	}

	mux := web.CreateWebserver(repo)

	http.ListenAndServe(config.Address, mux)
}

func Import(config Config, file string) {
	repo, err := repo.NewSQLRepo(config.DBHost, config.DBUsername, config.DBPassword, config.DBName)

	if err != nil {
		log.Fatalf("Failed to import file %s: %s", file, err)
	}

	controller := newController(repo)
	err = loadFromFile(controller, file)

	if err != nil {
		log.Fatalf("Failed to import file %s: %s", file, err)
	}
}

func loadFromFile(c Controller, path string) error {
	content, err := os.ReadFile(path)

	if err != nil {
		return err
	}

	var payload []model.Game
	err = json.Unmarshal(content, &payload)
	if err != nil {
		return err
	}

	for _, game := range payload {
		_, err = c.AddGame(game)
		if err != nil {
			return err
		}
	}

	log.Printf("Imported %d games", len(payload))
	return nil
}