untap/caching.gd

91 lines
2.7 KiB
GDScript

extends Node
var _jpg_path
var _png_path
signal cache_done
enum cache_action {
ALREADY_CACHED,
CACHING,
FAILED_TO_CACHE
}
func _cache_error(err: String) -> String:
return "CACHE::ERROR::" + err + "\n"
func _check_cache(id: String) -> bool:
if !FileAccess.file_exists("user://card_cache/" + id + "/card.json"):
return false
if !FileAccess.file_exists("user://card_cache/" + id + "/card.png"):
return false
if !FileAccess.file_exists("user://card_cache/" + id + "/card.jpg"):
return false
return true
func fetch_card(id: String) -> void:
if _check_cache(id):
return
await _do_http_request_card(id)
await _do_http_request_imgs(id, _png_path, true)
await _do_http_request_imgs(id, _jpg_path, false)
cache_done.emit()
func _do_http_request_imgs(id: String, image_path: String, png: bool) -> void:
var httpr = HTTPRequest.new()
add_child(httpr)
var headers = PackedStringArray(["User-Agent: MTGUntapClone/0.1", "Accept: */*"])
var error = httpr.request(image_path, headers)
if error != OK:
push_error(_cache_error("GET_REQUEST") + "An error occurred in the Scryfall request.")
var response = await httpr.request_completed
var img = Image.new()
var imgerr
if png:
imgerr = img.load_png_from_buffer(response[3])
else:
imgerr = img.load_jpg_from_buffer(response[3])
if imgerr != OK:
push_error(_cache_error("IMG_LOADING") + "Couldn't load the image.")
img.save_png("user://card_cache/" + id + ("/card.png" if png else "/card.jpg"))
img = null
func _do_http_request_card(id: String) -> void:
var httpr = HTTPRequest.new()
add_child(httpr)
#httpr.request_completed.connect(_scryfall_card_response)
var headers = PackedStringArray(["User-Agent: MTGUntapClone/0.1", "Accept: */*"])
var error = httpr.request("https://api.scryfall.com/cards/" + id, headers)
if error != OK:
push_error(_cache_error("GET_REQUEST") + "An error occurred in the Scryfall request.")
var response = await httpr.request_completed
if response[0] != HTTPRequest.RESULT_SUCCESS:
push_error(_cache_error("GET_REQUEST") + "Failed to fetch card data from Scryfall")
return
var unprocessed_body = response[3].get_string_from_utf8()
var card_content = JSON.parse_string(unprocessed_body)
if card_content == null:
push_error(_cache_error("PARSING") + "Failed to parse the Scryfall card results.")
var dir = DirAccess.open("user://")
dir.make_dir_recursive("user://card_cache/" + id + "/") # lets ensure the path is there
dir = null
var card_cache = FileAccess.open(
"user://card_cache/" + id + "/card.json", FileAccess.WRITE
)
card_cache.store_string(unprocessed_body) # cache the json response
card_cache = null # closes the file
var image_uris = card_content["image_uris"]
_png_path = image_uris["png"]
_jpg_path = image_uris["normal"]