package game

import (
	"encoding/json"
	"fmt"
	"os"
	"sirlab.de/go/knyt/engine"
)

func NewGameFromFile(id, fileName string) (*Game, error) {
	jsonBytes, err := os.ReadFile(fileName)
	if err != nil {
		return nil, err
	}

	var gmJson GameJson
	if err := json.Unmarshal(jsonBytes, &gmJson); err != nil {
		return nil, fmt.Errorf("%s: %v\n", fileName, err)
	} else {
		gm := Game{
			id:   id,
			name: gmJson.Name,
			eng:  engine.NewEngine(id),
		}

		go gm.eng.Run()

		return &gm, nil
	}
}

func (gm *Game) GetId() string {
	gm.mu.Lock()
	defer gm.mu.Unlock()

	return gm.id
}

func (gm *Game) GetName() string {
	gm.mu.Lock()
	defer gm.mu.Unlock()

	return gm.name
}

func (gm *Game) GetEngine() *engine.Engine {
	gm.mu.Lock()
	defer gm.mu.Unlock()

	return gm.eng
}

// func (gm *Game) GetActivePlayers() []string {
// 	gm.mu.Lock()
// 	defer gm.mu.Unlock()
//
// 	players := make([]string, 0)
//
// 	now := time.Now()
// 	for usrId, timestamp := range gm.playerTimestamp {
// 		elapsed := now.Sub(timestamp)
//
// 		fmt.Printf("%s: %.0f\n", usrId, elapsed.Seconds())
//
// 		if elapsed.Seconds() < 30.0 {
// 			players = append(players, usrId)
// 		}
// 	}
//
// 	return players
// }