Add daily study missions

scripts/autoload/daily_mission_service.gd

@@ -0,0 +1,88 @@
+extends Node
+
+signal missions_changed
+signal missions_failed(message: String)
+
+const EndpointConfig := preload("res://scripts/autoload/api_endpoint_config.gd")
+const DEFAULT_URL := "https://us3q.ranaze.com/api/daily-missions"
+
+var api_url := DEFAULT_URL
+var request: HTTPRequest
+var state: Dictionary = {}
+var loading := false
+var pending_action := ""
+
+
+func _ready() -> void:
+	api_url = EndpointConfig.resolve(DEFAULT_URL, "/api/daily-missions")
+	request = HTTPRequest.new()
+	request.timeout = 20.0
+	request.request_completed.connect(_on_completed)
+	add_child(request)
+	AuthState.auth_changed.connect(_on_auth_changed)
+	set_process(true)
+
+
+func refresh() -> void:
+	if loading or not AuthState.can_send_authenticated_request():
+		return
+	_send("refresh", HTTPClient.METHOD_GET, "")
+
+
+func replace(mission_id: String) -> void:
+	if loading or mission_id.is_empty() or not AuthState.can_send_authenticated_request():
+		return
+	_send("replace", HTTPClient.METHOD_POST, "/%s/replace" % mission_id.uri_encode())
+
+
+func apply_response(parsed: Dictionary) -> void:
+	var next_state: Variant = parsed.get("dailyMissions", null)
+	if typeof(next_state) == TYPE_DICTIONARY:
+		state = next_state
+		missions_changed.emit()
+
+
+func _send(action: String, method: int, suffix: String) -> void:
+	loading = true
+	pending_action = action
+	var headers := PackedStringArray(["Authorization: Bearer %s" % AuthState.access_token])
+	var error := request.request(api_url + suffix, headers, method)
+	if error != OK:
+		loading = false
+		pending_action = ""
+		missions_failed.emit("Daily missions could not be loaded.")
+
+
+func _on_completed(result: int, response_code: int, _headers: PackedStringArray, body: PackedByteArray) -> void:
+	loading = false
+	pending_action = ""
+	if response_code == 401:
+		AuthState.handle_unauthorized(AuthState.access_token)
+		return
+	if result != HTTPRequest.RESULT_SUCCESS or response_code < 200 or response_code >= 300:
+		missions_failed.emit("Daily mission request failed.")
+		return
+	var parsed: Variant = JSON.parse_string(body.get_string_from_utf8())
+	if typeof(parsed) != TYPE_DICTIONARY or typeof(parsed.get("state", null)) != TYPE_DICTIONARY:
+		missions_failed.emit("The daily mission response was invalid.")
+		return
+	state = parsed.get("state", {})
+	CreditsService.apply_award_response(parsed)
+	missions_changed.emit()
+
+
+func _process(_delta: float) -> void:
+	if state.is_empty() or loading or not AuthState.can_send_authenticated_request():
+		return
+	var expires := Time.get_unix_time_from_datetime_string(str(state.get("expiresUtc", "")).trim_suffix("Z"))
+	if expires > 0 and Time.get_unix_time_from_system() >= expires:
+		state = {}
+		refresh()
+
+
+func _on_auth_changed() -> void:
+	if not AuthState.is_logged_in:
+		state = {}
+		loading = false
+		if request.get_http_client_status() != HTTPClient.STATUS_DISCONNECTED:
+			request.cancel_request()