@tool
extends Node3D

# Validates template map structure in the editor output panel.
#
# Run this in the Godot editor:
#   1. Open template_map.tscn
#   2. Look at the Output panel (bottom dock) for validation results
#
# Checks:
#   - Required gameplay node groups are present
#   - Spawn points exist for both teams
#   - Bomb sites are defined
#   - Buy zones are present
#   - LightmapGI is configured
#
# Groups used by map nodes:
#   ct_spawn     — Counter-Terrorist spawn positions
#   t_spawn      — Terrorist spawn positions
#   buy_zone     — Purchase zone areas
#   bomb_site    — Bomb plant site areas (+ bombsite_a / bombsite_b for ID)
#   cubemap_origin — Reflection cubemap capture origin
#   map_bounds   — Out-of-bounds kill walls
#
# Game logic discovers these at runtime by scanning for nodes with
# the corresponding group, not by node name.


func _ready():
	if not Engine.is_editor_hint():
		return
	
	print("")
	print("=== Map Template: Validate Scene ===")
	print("")
	
	var checks = []
	
	# --- Required node types by group ---
	var groups_to_check = {
		"ct_spawn": "CT Spawn points",
		"t_spawn": "T Spawn points",
		"buy_zone": "Buy zones",
		"bomb_site": "Bomb sites",
		"cubemap_origin": "Cubemap capture origins",
		"map_bounds": "Map boundary walls",
	}
	
	for group in groups_to_check:
		var nodes = get_tree().get_nodes_in_group(group)
		var label = groups_to_check[group]
		if nodes.size() > 0:
			checks.append([str("  + ", label, " (", nodes.size(), " found)"), true])
		else:
			checks.append([str("  - ", label, " — NONE FOUND"), false])
	
	# --- CSG floor check ---
	var floor_nodes = _find_csg_floor()
	checks.append([str("  + CSG Floor geometry (", floor_nodes.size(), " nodes)"), floor_nodes.size() > 0])
	
	# --- Wall check ---
	var wall_count = _find_csg_walls()
	checks.append([str("  + CSG Wall geometry (", wall_count, " walls)"), wall_count >= 3])
	
	# --- LightmapGI check ---
	var lightmap = _find_lightmap_gi()
	if lightmap:
		checks.append(["  + LightmapGI configured ✓", true])
		if lightmap.light_data != null:
			checks.append(["  + LightmapGI data: BAKED ✓", true])
		else:
			checks.append(["  - LightmapGI: NOT YET BAKED", false])
		checks.append([str("  + LightmapGI.bounces = ", lightmap.bounces), lightmap.bounces >= 2])
		checks.append([str("  + LightmapGI.texel_scale = ", lightmap.texel_scale), lightmap.texel_scale <= 2.0])
	else:
		checks.append(["  - LightmapGI — NOT FOUND", false])
	
	# --- ReflectionProbe check ---
	var probe = _find_reflection_probe()
	checks.append(["  + ReflectionProbe present", probe != null])
	
	# --- WorldEnvironment check ---
	var env = _find_world_env()
	checks.append(["  + WorldEnvironment present", env != null])
	
	# --- SunLight check ---
	var sun = _find_dir_light()
	checks.append(["  + DirectionalLight3D (sun) present", sun != null])
	
	# --- Map scale / playable area estimate ---
	var extents = _estimate_floor_extents(floor_nodes)
	if extents:
		checks.append([str("  + Playable area: ~", extents[0], "x", extents[1], " units"), true])
	
	# Print results
	print("  ─── Validation Results ───")
	var passed = 0
	var failed = 0
	for check in checks:
		if check[1]:
			passed += 1
		else:
			failed += 1
		print(check[0])
	
	print("")
	print("  Passed: ", passed, "  Failed: ", failed)
	print("")
	
	if failed > 0:
		print("  NOTE: ", failed, " check(s) did not pass.")
		print("  See warnings above for details — these are advisory,")
		print("  the map will still function but may be missing critical nodes.")
	else:
		print("  All checks passed. Map template is ready!")
	
	print("")
	print("  === Validation complete ===")
	print("")


func _find_nodes_by_group(group_name: String) -> Array:
	return get_tree().get_nodes_in_group(group_name)


func _find_csg_floor() -> Array:
	"""Return all CSG nodes with floor-like Y position and flat orientation."""
	var results = []
	for child in get_children():
		if child is CSGBox3D or child is CSGCombiner3D:
			if abs(child.transform.origin.y) < 0.5:
				var s = child
				if s is CSGBox3D and s.size.y < 0.3:
					results.append(child)
				elif s is CSGCombiner3D:
					results.append(child)
	return results


func _find_csg_walls() -> int:
	"""Count CSG box nodes with vertical wall-like dimensions."""
	var count = 0
	for child in get_children():
		if child is CSGBox3D:
			var s: CSGBox3D = child
			# Wall-like: one thin dimension, tall Y
			var dims = [s.size.x, s.size.y, s.size.z]
			dims.sort()
			if dims[0] < 0.5 and dims[1] > 1.5 and dims[2] > 0.5:
				if child.name.begins_with("Wall") or child.name.begins_with("Divider") or child.name.begins_with("Mid"):
					count += 1
	return count


func _find_lightmap_gi() -> LightmapGI:
	for child in get_children():
		if child is LightmapGI:
			return child
	return null


func _find_reflection_probe() -> ReflectionProbe:
	for child in get_children():
		if child is ReflectionProbe:
			return child
	return null


func _find_world_env() -> WorldEnvironment:
	for child in get_children():
		if child is WorldEnvironment:
			return child
	return null


func _find_dir_light() -> DirectionalLight3D:
	for child in get_children():
		if child is DirectionalLight3D:
			return child
	return null


func _estimate_floor_extents(floor_nodes: Array) -> Array:
	"""Estimate playable area width and depth from flat CSGBox3D nodes."""
	var min_x =  INF
	var max_x = -INF
	var min_z =  INF
	var max_z = -INF
	
	for node in floor_nodes:
		if node is CSGBox3D:
			var p = node.transform.origin
			var s = node.size
			# Approximate bounding box using position + half-extents
			min_x = min(min_x, p.x - s.x * 0.5)
			max_x = max(max_x, p.x + s.x * 0.5)
			min_z = min(min_z, p.z - s.z * 0.5)
			max_z = max(max_z, p.z + s.z * 0.5)
	
	if min_x != INF and max_x != INF and min_z != INF and max_z != INF:
		return [int(max_x - min_x), int(max_z - min_z)]
	return null