class_name AdsManager
extends Node

signal energy_reward_granted(amount: int)
signal ad_unavailable(message: String)

const SAVE_PATH := "user://void_bastion_ads.json"
const ENERGY_REWARD := 150
const MISSIONS_PER_INTERSTITIAL := 3
const INTERSTITIAL_COOLDOWN_SECONDS := 15 * 60
const ANDROID_TEST_APP_ID := "ca-app-pub-3940256099942544~3347511713"
const IOS_TEST_APP_ID := "ca-app-pub-3940256099942544~1458002511"

var mobile_ads_supported := false
var initialized := false
var rewarded_ready := false
var interstitial_ready := false
var reward_used_this_mission := false
var missions_since_interstitial := 0
var last_interstitial_time := 0

var _admob: Node
var _initialization_requested := false


func _ready() -> void:
	_load_state()
	mobile_ads_supported = OS.has_feature("android") or OS.has_feature("ios")
	if not mobile_ads_supported:
		return
	_create_admob_node()
	_admob.update_consent_info()


func _create_admob_node() -> void:
	var admob_script: Script = load("res://addons/AdmobPlugin/Admob.gd")
	_admob = admob_script.new()
	_admob.name = "Admob"
	_admob.is_real = false
	_admob.android_debug_application_id = ANDROID_TEST_APP_ID
	_admob.ios_debug_application_id = IOS_TEST_APP_ID
	_admob.global_ads_muted = true
	_admob.global_apply_at_startup = true
	_admob.att_enabled = false
	_admob.initialization_completed.connect(_on_initialization_completed)
	_admob.consent_info_updated.connect(_on_consent_info_updated)
	_admob.consent_info_update_failed.connect(_on_consent_info_update_failed)
	_admob.consent_form_loaded.connect(_on_consent_form_loaded)
	_admob.consent_form_dismissed.connect(_on_consent_form_dismissed)
	_admob.consent_form_failed_to_load.connect(_on_consent_form_failed_to_load)
	_admob.rewarded_ad_loaded.connect(_on_rewarded_ad_loaded)
	_admob.rewarded_ad_failed_to_load.connect(_on_rewarded_ad_failed_to_load)
	_admob.rewarded_ad_user_earned_reward.connect(_on_rewarded_ad_user_earned_reward)
	_admob.rewarded_ad_dismissed_full_screen_content.connect(_on_rewarded_ad_dismissed)
	_admob.interstitial_ad_loaded.connect(_on_interstitial_ad_loaded)
	_admob.interstitial_ad_failed_to_load.connect(_on_interstitial_ad_failed_to_load)
	_admob.interstitial_ad_dismissed_full_screen_content.connect(_on_interstitial_ad_dismissed)
	add_child(_admob)


func begin_mission() -> void:
	reward_used_this_mission = false
	if initialized and not rewarded_ready:
		_admob.load_rewarded_ad()


func can_offer_rewarded() -> bool:
	return mobile_ads_supported and initialized and rewarded_ready and not reward_used_this_mission


func request_rewarded_energy() -> void:
	if not can_offer_rewarded():
		ad_unavailable.emit("BELOHNUNGSVIDEO IST GERADE NICHT VERFÜGBAR")
		return
	rewarded_ready = false
	_admob.show_rewarded_ad()


func record_mission_finished() -> void:
	missions_since_interstitial += 1
	_save_state()
	if is_interstitial_due() and interstitial_ready:
		_show_interstitial()
	elif is_interstitial_due() and initialized:
		_admob.load_interstitial_ad()


func is_interstitial_due(now_unix: int = -1) -> bool:
	if missions_since_interstitial < MISSIONS_PER_INTERSTITIAL:
		return false
	if last_interstitial_time <= 0:
		return true
	var now := int(Time.get_unix_time_from_system()) if now_unix < 0 else now_unix
	return now - last_interstitial_time >= INTERSTITIAL_COOLDOWN_SECONDS


func _show_interstitial() -> void:
	if not mobile_ads_supported or not initialized or not interstitial_ready:
		return
	interstitial_ready = false
	missions_since_interstitial = 0
	last_interstitial_time = int(Time.get_unix_time_from_system())
	_save_state()
	_admob.show_interstitial_ad()


func _on_consent_info_updated() -> void:
	var consent = _admob.get_consent_status()
	var status: String = consent.to_status_string() if consent else "UNKNOWN"
	if status == "REQUIRED":
		_admob.load_consent_form()
	elif status in ["NOT_REQUIRED", "OBTAINED"]:
		_initialize_ads()


func _on_consent_info_update_failed(_error) -> void:
	_initialize_if_prior_consent_allows()


func _on_consent_form_loaded() -> void:
	_admob.show_consent_form()


func _on_consent_form_dismissed(_error) -> void:
	_initialize_if_prior_consent_allows()


func _on_consent_form_failed_to_load(_error) -> void:
	_initialize_if_prior_consent_allows()


func _initialize_if_prior_consent_allows() -> void:
	var consent = _admob.get_consent_status()
	var status: String = consent.to_status_string() if consent else "UNKNOWN"
	if status in ["NOT_REQUIRED", "OBTAINED"]:
		_initialize_ads()


func _initialize_ads() -> void:
	if _initialization_requested:
		return
	_initialization_requested = true
	_admob.initialize()


func _on_initialization_completed(_status) -> void:
	initialized = true
	_admob.load_rewarded_ad()
	_admob.load_interstitial_ad()


func _on_rewarded_ad_loaded(_ad_info, _response_info) -> void:
	rewarded_ready = true


func _on_rewarded_ad_failed_to_load(_ad_info, _error) -> void:
	rewarded_ready = false


func _on_rewarded_ad_user_earned_reward(_ad_info, _reward_data) -> void:
	if reward_used_this_mission:
		return
	reward_used_this_mission = true
	energy_reward_granted.emit(ENERGY_REWARD)


func _on_rewarded_ad_dismissed(_ad_info) -> void:
	rewarded_ready = false
	_admob.load_rewarded_ad()


func _on_interstitial_ad_loaded(_ad_info, _response_info) -> void:
	interstitial_ready = true


func _on_interstitial_ad_failed_to_load(_ad_info, _error) -> void:
	interstitial_ready = false


func _on_interstitial_ad_dismissed(_ad_info) -> void:
	interstitial_ready = false
	_admob.load_interstitial_ad()


func _save_state() -> void:
	var file := FileAccess.open(SAVE_PATH, FileAccess.WRITE)
	if file:
		file.store_string(JSON.stringify({
			"missions_since_interstitial": missions_since_interstitial,
			"last_interstitial_time": last_interstitial_time
		}))


func _load_state() -> void:
	if not FileAccess.file_exists(SAVE_PATH):
		return
	var file := FileAccess.open(SAVE_PATH, FileAccess.READ)
	if not file:
		return
	var data = JSON.parse_string(file.get_as_text())
	if data is Dictionary:
		missions_since_interstitial = maxi(0, int(data.get("missions_since_interstitial", 0)))
		last_interstitial_time = maxi(0, int(data.get("last_interstitial_time", 0)))