class_name ABGGuildPageController
extends RefCounted

const ContentRegistry = preload("res://p10_0/content_registry.gd")

## UI-independent Guild view-data assembly.
##
## The controller receives a Company snapshot and describes the Guild desk's
## state and destination boundaries. It never loads, saves or mutates
## persistence and never reaches into Godot nodes or Entry Shell globals.

const ACTIVE_CONTRACT_STATUSES: Array[String] = ["market", "battle", "result", "recovery"]


func snapshot(company: Dictionary, locale := "zh_CN") -> Dictionary:
	if company.is_empty():
		return {"ok": false, "code": "COMPANY_REQUIRED"}
	var raw_recruits = company.get("owned_recruits", [])
	if not raw_recruits is Array:
		return {"ok": false, "code": "COMPANY_INVALID"}
	var raw_contract = company.get("active_contract", {})
	if not raw_contract is Dictionary:
		return {"ok": false, "code": "CONTRACT_INVALID"}

	var recruits := _copy_recruits(raw_recruits)
	var contract: Dictionary = Dictionary(raw_contract).duplicate(true)
	var status := String(contract.get("status", ""))
	var has_contract := not contract.is_empty()
	var is_active := status in ACTIVE_CONTRACT_STATUSES
	var is_returned := status == "returned"
	var state := "active" if is_active else "returned" if is_returned else "empty" if not has_contract else "blocked"
	# M79-I06: after the final Contract the route is complete rather than open.
	var contract_total := Array(ContentRegistry.snapshot().get("contracts", [])).size()
	var route_complete := contract_total > 0 and int(company.get("next_contract_ordinal", 0)) >= contract_total and not is_active
	_route_complete_flag = route_complete
	var line_capacity := int(contract.get("line_capacity", 4))
	var coin := int(contract.get("coin", 0))
	var difficulty := String(contract.get("difficulty", "standard"))
	var company_data := {
		"company_id": String(company.get("company_id", "")),
		"owned_count": recruits.size(),
		"line_capacity": line_capacity,
		"recruits": recruits,
		"display_recruits": _copy_recruits(recruits.slice(0, mini(2, recruits.size()))),
	}
	var contract_data := {
		"present": has_contract,
		"active": is_active,
		"returned": is_returned,
		"state": state,
		"status": status,
		"contract_id": String(contract.get("contract_id", "")),
		"run_id": String(contract.get("run_id", "")),
		"route_id": String(contract.get("route_id", "windglass_verge")),
		"difficulty": difficulty,
		"coin": coin,
		"line_capacity": line_capacity,
	}
	return {
		"ok": true,
		"page_id": "guild",
		"company": company_data,
		"contract": contract_data,
		"route_complete": route_complete,
		"contract_total": contract_total,
		"renown": int(company.get("renown", 0)),
		"clear_facts": Array(company.get("clear_facts", [])).size(),
		"destinations": _destinations(state),
		"locale": String(locale),
	}


func destination_state(snapshot_data: Dictionary, destination_id: String) -> Dictionary:
	var destinations = snapshot_data.get("destinations", {})
	if destinations is Dictionary and destinations.has(destination_id):
		return Dictionary(destinations.get(destination_id, {})).duplicate(true)
	return {"enabled": false, "visible": false, "reason": "unknown_destination"}


func _destinations(state: String) -> Dictionary:
	var has_active := state == "active"
	var has_returned := state == "returned"
	var _route_complete := _route_complete_flag
	return {
		"contract": {
			# M79-I05: with the previous contract returned the guild must offer
			# the next one instead of stranding the player. Once the route is
			# complete the board closes with an explicit completion reason.
			"enabled": (state == "empty" or has_returned) and not _route_complete,
			"visible": true,
			"reason": "route_complete" if _route_complete else "ready" if state == "empty" else "contract_active" if has_active else "contract_returned" if has_returned else "contract_invalid",
		},
		"market": {
			"enabled": has_active,
			"visible": has_active,
			"reason": "ready" if has_active else "contract_returned" if has_returned else "contract_required",
		},
		"equipment": {
			"enabled": has_active,
			"visible": true,
			"reason": "ready" if has_active else "contract_required" if not has_returned else "returned_contract",
		},
		"party": {
			"enabled": has_active,
			"visible": true,
			"reason": "ready" if has_active else "contract_required" if not has_returned else "returned_contract",
		},
		"risk": {
			"enabled": has_active,
			"visible": true,
			"reason": "ready" if has_active else "contract_required" if not has_returned else "returned_contract",
		},
	}


func _copy_recruits(values) -> Array[Dictionary]:
	var result: Array[Dictionary] = []
	if not values is Array:
		return result
	for value in values:
		if value is Dictionary:
			result.append(Dictionary(value).duplicate(true))
	return result

var _route_complete_flag := false