class_name ReputationEvaluator
extends RefCounted
## Evaluates player performance (PLAN.md: Reputation Meter).
## Scoring weights are data so they can be tuned per venue.

const EventBus := preload("res://src/core/event_bus.gd")

## rating: float starting 50 (out of 100). Errors subtract, though marks add.
var rating: float = 70.0
var _modifiers: Array[Dictionary] = []
var event_bus: EventBus = null

func set_event_bus(bus: EventBus) -> void:
	event_bus = bus

## Apply a reputation change.
## category: "peaceful", "force", "false_report", "accuracy", "complaint",
##           "security_failure", "property_damage", "access_judgment", "crowd"
func apply(_category: String, delta: float, reason: String) -> void:
	# Clamp range: 0..100.
	var clamped := clampf(rating + delta, 0.0, 100.0)
	var applied: float = clamped - rating
	rating = clamped
	_modifiers.append({
		"category": _category,
		"delta": applied,
		"reason": reason,
		"at_ms": Time.get_ticks_msec(),
	})
	if event_bus:
		event_bus.reputation_changed.emit({
			"rating": rating,
			"delta": applied,
			"reason": reason,
			"category": _category,
		})

static func grade_for(rating_value: float) -> String:
	if rating_value >= 90.0:
		return "A"
	if rating_value >= 75.0:
		return "B"
	if rating_value >= 60.0:
		return "C"
	if rating_value >= 40.0:
		return "D"
	return "F"

func summary() -> Dictionary:
	return {
		"rating": rating,
		"grade": grade_for(rating),
		"modifiers": _modifiers.duplicate(true),
	}

func snapshot() -> Dictionary:
	return {"rating": rating, "modifiers": _modifiers.duplicate(true)}

func restore(data: Dictionary) -> void:
	rating = clampf(float(data.get("rating", 70.0)), 0.0, 100.0)
	_modifiers.clear()
	for modifier in data.get("modifiers", []):
		if modifier is Dictionary:
			_modifiers.append((modifier as Dictionary).duplicate(true))