class_name ActionRegistry
extends RefCounted
## ActionRegistry - Registry of director action templates (Phase 3c).
##
## Single source of truth for the action types the Director Tool and the event
## system understand. Adding a new action type is just appending an entry here;
## the ActionEditor and the panels generate their UI from this registry, so no
## other code changes are required.

enum ReactiveRole { SEQUENTIAL, OVERLAY, TAKEOVER }

const ACTION_TEMPLATES := {
	"walk_to": {
		"label": "Walk To",
		"icon": "🚶",
		"params": [
			{ "key": "target", "type": "position", "required": true },
		],
		"reactive_role": ReactiveRole.SEQUENTIAL, "overlay_eligible": false,
	},
	"speak": {
		"label": "Speak",
		"icon": "💬",
		"params": [
			{ "key": "text", "type": "text", "required": true },
			{ "key": "duration", "type": "float", "default": 2.0 },
		],
		"reactive_role": ReactiveRole.OVERLAY, "overlay_eligible": true,
	},
	"wait": {
		"label": "Wait",
		"icon": "⏳",
		"params": [
			{ "key": "duration", "type": "float", "required": true },
		],
		"reactive_role": ReactiveRole.SEQUENTIAL, "overlay_eligible": false,
	},
	"ragdoll": {
		"label": "Ragdoll",
		"icon": "💥",
		"params": [],
		"reactive_role": ReactiveRole.TAKEOVER, "overlay_eligible": false,
	},
	"recover": {
		"label": "Recover",
		"icon": "🔄",
		"params": [],
		"reactive_role": ReactiveRole.TAKEOVER, "overlay_eligible": false,
	},
	"pick_up_prop": { "label": "Pick Up Prop", "icon": "🖐️", "params": [{"key": "target_prop", "type": "prop", "required": true}, {"key": "hand", "type": "hand", "default": "auto"}], "reactive_role": ReactiveRole.SEQUENTIAL, "overlay_eligible": false },
	"drop_prop": { "label": "Drop Prop", "icon": "⬇️", "params": [], "reactive_role": ReactiveRole.SEQUENTIAL, "overlay_eligible": false },
	"throw_prop": { "label": "Throw Prop", "icon": "🎯", "params": [{"key": "target_prop", "type": "prop", "required": true}, {"key": "target_position", "type": "position", "required": true}, {"key": "flight_time", "type": "float", "default": 0.9}], "reactive_role": ReactiveRole.SEQUENTIAL, "overlay_eligible": false },
}


static func types() -> Array[String]:
	# Dictionary.keys() returns an untyped Array at runtime; build a genuinely
	# typed Array[String] so callers can store it in typed locals (see
	# ActionEditor._current_type / RuleEditor._select_action_type).
	var out: Array[String] = []
	out.assign(ACTION_TEMPLATES.keys())
	return out


static func has_type(type: String) -> bool:
	return ACTION_TEMPLATES.has(type)


static func label(type: String) -> String:
	var tpl: Dictionary = ACTION_TEMPLATES.get(type, {})
	return String(tpl.get("label", type))


static func icon(type: String) -> String:
	var tpl: Dictionary = ACTION_TEMPLATES.get(type, {})
	return String(tpl.get("icon", ""))


static func is_overlay_eligible(type: String) -> bool:
	var tpl: Dictionary = ACTION_TEMPLATES.get(type, {})
	return bool(tpl.get("overlay_eligible", false))


static func reactive_role(action: Dictionary) -> ReactiveRole:
	var type: String = String(action.get("type", ""))
	var tpl: Dictionary = ACTION_TEMPLATES.get(type, {})
	var role: ReactiveRole = int(tpl.get("reactive_role", ReactiveRole.SEQUENTIAL))
	var params: Dictionary = action.get("params", {})
	if type == "speak" and bool(params.get("stop_current", action.get("stop_current", false))):
		return ReactiveRole.SEQUENTIAL
	return role


## Converts a flat queue action into a rule-action shape (adds `target` + nests
## params). `target_id` is the acting stickman's instance id.
static func to_rule_action(action: Dictionary, target_id: int) -> Dictionary:
	var params: Dictionary = {}
	match String(action.get("type", "")):
		"walk_to":
			params["target"] = action.get("target", Vector2.ZERO)
		"speak":
			params["text"] = String(action.get("text", ""))
			params["duration"] = float(action.get("duration", 2.0))
			if bool(action.get("stop_current", false)):
				params["stop_current"] = true
		"wait":
			params["duration"] = float(action.get("duration", 0.0))
		"pick_up_prop":
			params["target_prop"] = int(action.get("target_prop", -1)); params["hand"] = String(action.get("hand", "auto"))
		"throw_prop":
			params["target_prop"] = int(action.get("target_prop", -1)); params["target_position"] = action.get("target_position", Vector2.ZERO); params["flight_time"] = float(action.get("flight_time", 0.9))
	return {
		"type": String(action.get("type", "")),
		"target": target_id,
		"params": params,
	}


## Converts a rule-action shape back into a flat queue action (drops `target`).
static func from_rule_action(rule_action: Dictionary) -> Dictionary:
	var params: Dictionary = rule_action.get("params", {})
	match String(rule_action.get("type", "")):
		"walk_to":
			return { "type": "walk_to", "target": params.get("target", Vector2.ZERO) }
		"speak":
			var speak: Dictionary = {
				"type": "speak",
				"text": String(params.get("text", "")),
				"duration": float(params.get("duration", 2.0)),
			}
			if bool(params.get("stop_current", false)):
				speak["stop_current"] = true
			return speak
		"wait":
			return { "type": "wait", "duration": float(params.get("duration", 0.0)) }
		"pick_up_prop": return {"type": "pick_up_prop", "target_prop": int(params.get("target_prop", -1)), "hand": String(params.get("hand", "auto"))}
		"drop_prop": return {"type": "drop_prop"}
		"throw_prop": return {"type": "throw_prop", "target_prop": int(params.get("target_prop", -1)), "target_position": params.get("target_position", Vector2.ZERO), "flight_time": float(params.get("flight_time", 0.9))}
		_:
			return { "type": String(rule_action.get("type", "")) }


## Human-readable one-line summary for both flat queue actions and rule-action
## shapes (the get() fallbacks tolerate either key layout).
static func summarize(action: Dictionary) -> String:
	var type := String(action.get("type", ""))
	var params: Dictionary = action.get("params", {})
	match type:
		"walk_to":
			# Rule actions use top-level `target` for the actor instance id and
			# nested `params.target` for the waypoint. Prefer the nested value and
			# type-guard legacy/malformed payloads so summaries never crash.
			var raw_target: Variant = params.get("target", action.get("target", Vector2.ZERO))
			var t: Vector2 = raw_target as Vector2 if raw_target is Vector2 else Vector2.ZERO
			return "Walk To (%d, %d)" % [int(roundf(t.x)), int(roundf(t.y))]
		"speak":
			var text := String(action.get("text", params.get("text", "")))
			var dur := float(action.get("duration", params.get("duration", 2.0)))
			var suffix: String = " — stops current" if bool(params.get("stop_current", action.get("stop_current", false))) else ""
			return "Speak \"%s\" (%ss)%s" % [text, _fmt_duration(dur), suffix]
		"wait":
			var wd := float(action.get("duration", params.get("duration", 0.0)))
			return "Wait %ss" % _fmt_duration(wd)
		"ragdoll":
			return "Ragdoll"
		"recover":
			return "Recover"
		"pick_up_prop": return "Pick Up Prop"
		"drop_prop": return "Drop Prop"
		"throw_prop": return "Throw Prop"
		_:
			return type


static func _fmt_duration(v: float) -> String:
	if v == roundf(v):
		return str(int(v))
	return str(v)