extends SceneTree

const EntryShell = preload("res://entry/entry_shell.gd")
const SettingsStore = preload("res://entry/settings_store.gd")
const DraftService = preload("res://entry/initial_company_draft_service.gd")
const ContractService = preload("res://entry/guild_contract_service.gd")
const FormationService = preload("res://entry/formation_risk_service.gd")
const BattleService = preload("res://entry/battle_service.gd")

const DRAFT_PATH := "user://dev5_capture_draft.json"
const COMPANY_PATH := "user://dev5_capture_company.json"
const SEED := "aabbccddeeff00112233445566778899"
const CONTRACT_OP := "abcdefabcdefabcdefabcdefabcdefab"
const HIRE_OP_1 := "11112222333344445555666677778888"
const HIRE_OP_2 := "88887777666655554444333322221111"
const ORDER_OP := "fedcbafedcbafedcbafedcbafedcbafe"
const READY_OP := "1234567890abcdef1234567890abcdef"
const BATTLE_OP := "0123456789abcdef0123456789abcdef"
const RECOVERY_OP := "0f0f0f0ff0f0f0f00f0f0f0fff0f0f0f"
const STATES := ["battle_opening", "battle_live", "result", "knockout", "recovery", "next_market"]

var output_root := ""
var failures: Array[String] = []
var fixture_index := 0
var viewport_size := Vector2i(844, 390)
var locale := "en"
var text_scale := 1.0


func _initialize() -> void:
	call_deferred("run_capture")


func run_capture() -> void:
	fixture_index = int(OS.get_environment("ABG_CAPTURE_FIXTURE_INDEX"))
	var fixtures := [
		{"size": Vector2i(760, 360), "locale": "zh_CN", "scale": 1.0},
		{"size": Vector2i(844, 390), "locale": "en", "scale": 1.3},
		{"size": Vector2i(1280, 720), "locale": "zh_CN", "scale": 1.0},
		{"size": Vector2i(1280, 720), "locale": "en", "scale": 1.3},
	]
	if fixture_index < 0 or fixture_index >= fixtures.size():
		push_error("unknown DEV-5 fixture index %d" % fixture_index)
		quit(1)
		return
	viewport_size = fixtures[fixture_index].size
	locale = fixtures[fixture_index].locale
	text_scale = fixtures[fixture_index].scale
	output_root = OS.get_environment("ABG_EVIDENCE_DIR")
	if output_root.is_empty():
		output_root = "/tmp/abg-dev5-candidate"
	output_root = output_root.path_join("captures")
	DirAccess.make_dir_recursive_absolute(output_root)
	_cleanup()
	var snapshots := _create_cycle_snapshots()
	if snapshots.is_empty():
		quit(1)
		return
	var viewport := SubViewport.new()
	viewport.size = viewport_size
	viewport.render_target_update_mode = SubViewport.UPDATE_ALWAYS
	root.add_child(viewport)
	var shell := EntryShell.new()
	shell.auto_start = false
	shell.initial_company_service.path = DRAFT_PATH
	shell.initial_company_service.company_path = COMPANY_PATH
	viewport.add_child(shell)
	await _frames(3)
	var settings := SettingsStore.new().defaults()
	settings.setup_completed = true
	settings.locale = locale
	settings.text_scale = text_scale
	shell.settings = settings
	shell.setup_draft = settings.duplicate(true)
	for state in STATES:
		_apply_state(shell, snapshots, String(state))
		await _frames(6)
		_verify_buttons(shell, String(state))
		await RenderingServer.frame_post_draw
		var image := viewport.get_texture().get_image()
		var path := output_root.path_join("fixture%d-%s.png" % [fixture_index, String(state)])
		if image.save_png(path) != OK:
			failures.append("capture failed: %s" % state)
	shell.queue_free()
	viewport.queue_free()
	await _frames(100)
	_cleanup()
	if failures.is_empty():
		print("ABG_DEV5_CAPTURE_OK fixture=%d viewport=%dx%d locale=%s text_%d=true states=battle_opening,battle_live,result,knockout,recovery,next_market frames=6 root=%s" % [fixture_index, viewport_size.x, viewport_size.y, locale, int(round(text_scale * 100.0)), output_root])
		quit(0)
	else:
		for failure in failures:
			push_error(failure)
		quit(1)


func _apply_state(shell: Control, snapshots: Dictionary, state: String) -> void:
	match state:
		"battle_opening":
			shell.battle_paused = false
			shell.show_battle(snapshots.opening, false)
		"battle_live":
			shell.battle_paused = false
			shell.show_battle(snapshots.live, false)
		"result":
			shell.battle_result_diagnosis_open = true
			shell.show_battle_result(snapshots.result)
		"knockout":
			shell.show_battle_knockout_review(snapshots.result)
		"recovery":
			shell.show_battle_recovery(snapshots.result)
		"next_market":
			shell.show_market(snapshots.recovered)


func _verify_buttons(node: Node, state: String) -> void:
	for child in node.get_children():
		if child is BaseButton and child.is_visible_in_tree():
			var rect: Rect2 = child.get_global_rect()
			if rect.position.x < -0.5 or rect.position.y < -0.5 or rect.end.x > viewport_size.x + 0.5 or rect.end.y > viewport_size.y + 0.5:
				failures.append("%s button %s outside viewport: %s" % [state, child.name, rect])
			if rect.size.x < 44.0 or rect.size.y < 44.0:
				failures.append("%s button %s below 44px: %s" % [state, child.name, rect.size])
		_verify_buttons(child, state)


func _create_cycle_snapshots() -> Dictionary:
	var draft: Dictionary = _draft_service().begin_or_load(SEED)
	if not draft.ok:
		return {}
	_draft_service().set_selection([String(draft.draft.offers[0].offer_id), String(draft.draft.offers[2].offer_id)])
	if not _draft_service().commit_company().ok:
		return {}
	var created: Dictionary = _contract_service().create_contract(CONTRACT_OP, "CTR-R1-01", "standard")
	if not created.ok:
		return {}
	var offers: Array = created.company.active_contract.market_board.recruit_offers
	_contract_service().hire_recruit(HIRE_OP_1, String(offers[0].source_offer_id), 14)
	var hired: Dictionary = _contract_service().hire_recruit(HIRE_OP_2, String(offers[1].source_offer_id), 14)
	if not hired.ok:
		return {}
	var begun: Dictionary = _formation_service().begin_formation()
	var saved: Dictionary = _formation_service().save_order(ORDER_OP, begun.formation.base_front_to_rear_ids)
	var ready: Dictionary = _formation_service().accept_readiness(READY_OP, String(saved.receipt.order_hash))
	if not ready.ok:
		return {}
	var option_id := String(ready.company.active_contract.formation.risk_options[1].risk_option_id)
	var started: Dictionary = _battle_service().begin_battle(BATTLE_OP, option_id)
	if not started.ok:
		return {}
	var opening: Dictionary = started.company.duplicate(true)
	var latest: Dictionary = started
	for _phase in range(5):
		latest = _battle_service().advance_battle(BATTLE_OP)
		if not latest.ok:
			return {}
	var live: Dictionary = latest.company.duplicate(true)
	for _phase in range(4):
		latest = _battle_service().advance_battle(BATTLE_OP)
		if not latest.ok:
			return {}
	var result: Dictionary = latest.company.duplicate(true)
	var recovered: Dictionary = _battle_service().recover_next_stage(RECOVERY_OP)
	if not recovered.ok:
		return {}
	return {"opening": opening, "live": live, "result": result, "recovered": recovered.company.duplicate(true)}


func _draft_service() -> RefCounted:
	var service := DraftService.new()
	service.path = DRAFT_PATH
	service.company_path = COMPANY_PATH
	return service


func _contract_service() -> RefCounted:
	var service := ContractService.new()
	service.company_path = COMPANY_PATH
	return service


func _formation_service() -> RefCounted:
	var service := FormationService.new()
	service.company_path = COMPANY_PATH
	return service


func _battle_service() -> RefCounted:
	var service := BattleService.new()
	service.company_path = COMPANY_PATH
	return service


func _frames(count: int) -> void:
	for _index in range(count):
		await process_frame


func _cleanup() -> void:
	for path in [DRAFT_PATH, "%s.bak" % DRAFT_PATH, "%s.candidate" % DRAFT_PATH, "%s.bak.candidate" % DRAFT_PATH, COMPANY_PATH, "%s.bak" % COMPANY_PATH, "%s.candidate" % COMPANY_PATH, "%s.bak.candidate" % COMPANY_PATH, "%s.corrupt" % COMPANY_PATH]:
		if FileAccess.file_exists(path):
			DirAccess.remove_absolute(path)