class_name Quest
extends PacketChunk


const BYTE_LENGTH := 0


## Byte Type: u32
## Byte Length: 4
var quest_id: int

## Byte Type: u8
## Byte Length: 1
var active: int

## Byte Type: u32
## Byte Length: 4
var remaining_time: int

## Byte Type: u32
## Byte Length: 4
var expire_time: int

## Byte Type: u16
## Byte Length: 2
var objective_count: int

var objective_details: Array


func get_byte_length():
	return 15 + objective_count * QuestObjectiveDetails.BYTE_LENGTH


static func from_bytes(bytes: PackedByteArray):
	var quest = Quest.new()
	
	quest.quest_id = bytes.decode_u32(0)
	quest.active = bytes.decode_u8(4)
	quest.remaining_time = bytes.decode_u32(5)
	quest.expire_time = bytes.decode_u32(9)
	quest.objective_count = bytes.decode_u16(13)
	quest.objective_details = QuestObjectiveDetails.array_from_bytes(
		bytes.slice(15, 15 + quest.byte_length)
	)
	
	return quest


static func array_from_bytes(bytes: PackedByteArray) -> Array[Quest]:
	var array: Array[Quest] = []
	
	var offset = 0
	while offset < bytes.size():
		var chunk = from_bytes(bytes.slice(offset))
		array.append(chunk)
		offset += chunk.byte_length
	
	return array