Add study session goals and summaries

scripts/ui/block_setup.gd

@@ -11,12 +11,17 @@ var status_label: Label
 var start_button: Button
 var requested_count := 10
 var targeted_setup := false
+var goal_option: OptionButton
+var target_label: Label
+var pending_launch := false
 
 func _ready() -> void:
 	set_anchors_preset(Control.PRESET_FULL_RECT)
 	add_theme_constant_override("separation", 16)
 	if not QuestionBankService.questions_changed.is_connected(_refresh_setup):
 		QuestionBankService.questions_changed.connect(_refresh_setup)
+	StudySessionService.session_started.connect(_on_session_started)
+	StudySessionService.session_failed.connect(_on_session_failed)
 
 	var title := Label.new()
 	title.text = "Block Setup"
@@ -27,9 +32,23 @@ func _ready() -> void:
 	Style.set_label(system_label, 22, Style.CYAN)
 	add_child(system_label)
 
+	var goal_row := HBoxContainer.new()
+	var goal_label := Label.new()
+	goal_label.text = "Finish line"
+	goal_row.add_child(goal_label)
+	goal_option = OptionButton.new()
+	goal_option.add_item("Questions")
+	goal_option.set_item_metadata(0, "question_count")
+	goal_option.add_item("Study duration")
+	goal_option.set_item_metadata(1, "duration")
+	goal_option.item_selected.connect(_on_goal_changed)
+	goal_row.add_child(goal_option)
+	add_child(goal_row)
+
 	var size_row := HBoxContainer.new()
-	size_row.add_child(Label.new())
-	size_row.get_child(0).text = "Question count"
+	target_label = Label.new()
+	target_label.text = "Question count"
+	size_row.add_child(target_label)
 	size_spin = SpinBox.new()
 	size_spin.min_value = 1
 	size_spin.max_value = 40
@@ -70,13 +89,18 @@ func _ready() -> void:
 
 func on_show(payload: Variant = null) -> void:
 	if typeof(payload) == TYPE_DICTIONARY:
-		targeted_setup = true
+		targeted_setup = bool(payload.get("mastery_target", false))
 		selected_system = str(payload.get("step3_system", "All Systems"))
 		requested_count = int(payload.get("question_count", 10))
+		goal_option.set_meta("mastery_target", targeted_setup)
+		var requested_goal := str(payload.get("goal_type", "question_count"))
+		goal_option.select(1 if requested_goal == "duration" else 0)
+		_on_goal_changed(goal_option.selected)
 		size_spin.value = requested_count
 		QuestionBankService.load_targeted_questions(selected_system, requested_count,
 			int(payload.get("difficulty_min", 0)), int(payload.get("difficulty_max", 0)))
 	else:
+		goal_option.set_meta("mastery_target", false)
 		targeted_setup = false
 		selected_system = str(payload) if payload != null else "All Systems"
 	_refresh_setup()
@@ -87,8 +111,9 @@ func _refresh_setup() -> void:
 		return
 	system_label.text = "Zone: %s" % selected_system
 	var available := QuestionBankService.get_questions_for_system(selected_system).size()
-	size_spin.max_value = max(1, available)
-	if not QuestionBankService.is_loading and available > 0:
+	if str(goal_option.get_item_metadata(goal_option.selected)) != "duration":
+		size_spin.max_value = max(5, available)
+	if not QuestionBankService.is_loading and available > 0 and str(goal_option.get_item_metadata(goal_option.selected)) != "duration":
 		size_spin.value = min(requested_count, available) if targeted_setup else min(size_spin.value, available)
 		targeted_setup = false
 	start_button.disabled = available == 0 or QuestionBankService.is_loading
@@ -105,5 +130,45 @@ func _start_block() -> void:
 	if not QuestionBankService.has_questions():
 		status_label.text = "Questions have not loaded from the API yet."
 		return
-	BlockSessionService.start_block(selected_system, int(size_spin.value), mode_option.get_item_text(mode_option.selected))
+	pending_launch = true
+	start_button.disabled = true
+	status_label.text = "Preparing your study goal..."
+	var mastery_target := bool(goal_option.get_meta("mastery_target", false))
+	var goal_type := "weak_system" if mastery_target else str(goal_option.get_item_metadata(goal_option.selected))
+	var target := 10 if mastery_target else int(size_spin.value)
+	StudySessionService.start(goal_type, target, mode_option.get_item_text(mode_option.selected),
+		selected_system if selected_system != "All Systems" else "")
+
+
+func _on_goal_changed(_index: int) -> void:
+	if str(goal_option.get_item_metadata(goal_option.selected)) == "duration":
+		target_label.text = "Minutes"
+		size_spin.min_value = 10
+		size_spin.max_value = 60
+		size_spin.step = 5
+		size_spin.value = 20
+	else:
+		target_label.text = "Question count"
+		size_spin.min_value = 5
+		size_spin.step = 1
+		_refresh_setup()
+
+
+func _on_session_started() -> void:
+	if not pending_launch or not visible:
+		return
+	pending_launch = false
+	var goal_type := str(StudySessionService.progress.get("goalType", "question_count"))
+	var block_size := 40 if goal_type == "duration" else int(StudySessionService.progress.get("targetValue", size_spin.value))
+	BlockSessionService.start_block(selected_system, block_size, mode_option.get_item_text(mode_option.selected))
+	if goal_type == "duration":
+		BlockSessionService.seconds_remaining = float(int(StudySessionService.progress.get("secondsRemaining", 0)))
 	main.show_screen("player")
+
+
+func _on_session_failed(message: String) -> void:
+	if not pending_launch or not visible:
+		return
+	pending_launch = false
+	start_button.disabled = false
+	status_label.text = message