extends Container
class_name SubViewer


signal downloaded

const VIEW_URL_PREFIX = "https://www.furaffinity.net/view/"
const VIEW_URL_PREFIX_ALT = "http://www.furaffinity.net/view/"

export var id:int
var download_url:String
var clicked_link:String
var url:String
onready var dl_menu:PopupMenu = $"%Download".get_popup()
var user:String
# minified version of user name used in urls. all lowercase and no underscores:
var userurl:String 
onready var main:Control = get_parent().owner
onready var grid:Control = main.get_node("%ThumbGrid")
onready var gather:GalleryGather = main.get_node("GalleryGather")
var FA = FAParser.new()

func _ready():
	url = "https://www.furaffinity.net/view/%d/"%[id]
	for i in Settings.settings.DownloadDirs.keys():
		dl_menu.add_item(i)
	dl_menu.connect("index_pressed",self,"download")
	$"%User".get_popup().connect("id_pressed",self,"user_name_menu")
	# check for cache file and load it if it exists. otherwise request from site.
	var cache = File.new()
	if cache.file_exists(str(Global.cache_dir,id)):
		cache.open(str(Global.cache_dir,id),File.READ)
		set_data(
				cache.get_pascal_string(),cache.get_pascal_string(),
				cache.get_pascal_string(),cache.get_pascal_string(),
				cache.get_pascal_string()
		)
		cache.close()
	else:
		$http.request(url,Global.headers)
		


func _on_http_request_completed(result, response_code, headers, body):
	FA.open_buffer(body)
	var iurl = FA.get_sub_img_url()
	set_data(
			FA.get_sub_title(),FA.get_sub_user(),FA.get_sub_desc(),
			iurl,FA.get_sub_download_url()
	)
	# create cache file for metadata if not error
	if not iurl.empty():
		var cache = File.new()
		cache.open(str(Global.cache_dir,id),File.WRITE)
		cache.store_pascal_string($"%name".text)
		cache.store_pascal_string(user)
		cache.store_pascal_string($"%desc".bbcode_text)
		cache.store_pascal_string($"%img".url)
		cache.store_pascal_string(download_url)
		cache.close()


func set_data(title:String,uuser:String,desc:String,iurl:String,durl:String):
	$"%name".text = title
	user = uuser
	userurl = uuser.replace("_","").to_lower()
	if iurl.empty():
		$"%User".text = "ERROR"
		$"%User".modulate = Color(1,0,0,8)
		$"%desc".bbcode_text = FA.get_sub_err()
		$"%ImgScroll".visible = false
		return
	$"%User".text = "By "+uuser
	$"%User".disabled = false
	$"%desc".bbcode_text = desc
	$"%img".url = iurl
	download_url = durl
	$http.queue_free()
	$"%Download".disabled = false


func _on_img_gui_input(event:InputEvent):
	if event.is_action_pressed("click") and event.is_pressed():
		var isc = $"%ImgScroll"
		var i = $"%img"
		var mouse = i.get_local_mouse_position() / i.rect_size
		$"%ImgScroll".scroll_horizontal
		$"%img".expand = not $"%img".expand
		yield(get_tree(),"idle_frame")
		isc.scroll_horizontal = mouse.x * i.rect_size.x - (isc.rect_size.x*0.5)
		isc.scroll_vertical = mouse.y * i.rect_size.y - (isc.rect_size.y*0.5)


func _on_desc_meta_clicked(meta:String):
	if meta.begins_with("/"):
		meta = "https://www.furaffinity.net" + meta
	if meta.begins_with(VIEW_URL_PREFIX) or meta.begins_with(VIEW_URL_PREFIX_ALT):
		var new_view_id:int = meta.trim_prefix(VIEW_URL_PREFIX).to_int()
		get_parent().owner.open_preview(new_view_id)
		return
	clicked_link = meta
	$LinkConf.dialog_text = "Do you want to open link:\n%s"%[meta]
	$LinkConf.popup_centered_clamped()


func _on_LinkConf_confirmed():
	OS.shell_open(clicked_link)


func _on_OpenBrowser_pressed():
	OS.shell_open(url)


func download(index):
	var dir:String = Settings.settings.DownloadDirs[dl_menu.get_item_text(index)]
	print("downloading ",download_url)
	var copy = Directory.new()
	# copy file from cache to download folder if its in cache
	var from = Global.cache_dir+download_url.md5_text()
	var to = dir+"/"+download_url.get_file()
	$"%Download".disabled = true
	if copy.file_exists(to):
		$"%DLStatus".dialog_text = "File already exists."
		$"%DLStatus".popup_centered_clamped()
		emit_signal("downloaded",id)
		return
	if copy.file_exists(from):
		print("copying from %s to %s"%[from,to])
		copy.copy(from,to)
		$"%DLStatus".dialog_text = "Download successful."
		$"%DLStatus".popup_centered_clamped()
	else:
		$dl.download_file = to
		$dl.request(download_url)
		var http_status = yield($dl,"request_completed")
		if http_status[0] == OK and http_status[1] == 200:
			$"%DLStatus".dialog_text = "Download successful."
		else:
			$"%DLStatus".dialog_text = "Download probably failed."
		$"%DLStatus".popup_centered_clamped()
	emit_signal("downloaded",id)
	$"%Download".disabled = false


func user_name_menu(index):
	match index:
		0: # view gallery
			#ok here we go! testing if this will work
			gather.pages = ["/gallery/%s"%[userurl]]
		1: # view scraps
			gather.pages = ["/scraps/%s"%[userurl]]
		2: # view both
			gather.pages = ["/gallery/%s"%[userurl],"/scraps/%s"%[userurl]]
		3: # view favorites
			gather.pages = ["/favorites/%s"%[userurl]]
		4: # open in browser
			OS.shell_open("https://www.furaffinity.net/user/%s/"%[userurl])
		5: # watch user
			Settings.settings.Watches.push_back(user)
			Settings.save_profile()
			$"%Alert".dialog_text = "User added to watch list."
			$"%Alert".popup_centered_clamped(Vector2(240,0))
		6: # blacklist user
			print(Settings.settings.UserBL)
			Settings.settings.UserBL.push_back(user)
			print(Settings.settings.UserBL)
			Settings.save_profile()
			$"%Alert".dialog_text = "User added to blacklist."
			$"%Alert".popup_centered_clamped(Vector2(240,0))
			for i in grid.get_children():
				if i.user == user:
					i.queue_free()
	
	if index in range(4):
		# clear grid
		main.clear_grid()
		gather.gather()


func _on_img_image_scaled():
	$"%ScaleIndicator".visible = true