Add server-side ELO ratings

scripts/ui/progress_profile.gd

@@ -52,23 +52,21 @@ func _ready() -> void:
 func on_show(_payload: Variant = null) -> void:
 	_reset_qbank_confirmation()
 	var profile := ProfileService.get_profile()
-	var xp_into := ProgressionService.xp_into_level(int(profile["xp"]))
-	var text := "[b]Level %d[/b]\n%d total XP (%d/%d to next level)\nCurrent streak: %d\nBest streak: %d\nToday: %d/%d questions, +%d XP\n\n[b]Badges[/b]\n" % [
-		profile["level"],
-		profile["xp"],
-		xp_into,
-		ProgressionService.XP_PER_LEVEL,
+	var text := "[b]Overall ELO %d[/b]\n%d rated questions\nCurrent streak: %d\nBest streak: %d\nToday: %d/%d questions\n\n[b]Category ELO[/b]\n" % [
+		QuestionBankService.overall_elo,
+		QuestionBankService.rated_question_count,
 		profile["current_streak"],
 		profile["best_streak"],
 		profile.get("daily_questions_answered", 0),
-		profile.get("daily_goal_questions", 10),
-		profile.get("daily_xp_earned", 0)
+		profile.get("daily_goal_questions", 10)
 	]
-	if profile["badges"].is_empty():
-		text += "No badges yet.\n"
+	if QuestionBankService.category_elos.is_empty():
+		text += "No rated categories yet.\n"
 	else:
-		for badge in profile["badges"]:
-			text += "- %s\n" % badge
+		var categories := QuestionBankService.category_elos.keys()
+		categories.sort()
+		for category in categories:
+			text += "- %s: %d\n" % [category, int(QuestionBankService.category_elos[category])]
 
 	text += "\n[b]System Accuracy[/b]\n"
 	if profile["system_stats"].is_empty():
@@ -83,12 +81,11 @@ func on_show(_payload: Variant = null) -> void:
 
 	text += "\n[b]Recent Blocks[/b]\n"
 	for block in profile["block_history"]:
-		text += "- %s: %s %d/%d, +%d XP\n" % [
+		text += "- %s: %s %d/%d\n" % [
 			block.get("timestamp", ""),
 			block.get("system", ""),
 			block.get("correct", 0),
-			block.get("total", 0),
-			block.get("xp_earned", 0)
+			block.get("total", 0)
 		]
 	profile_text.text = text