#!/usr/bin/env -S godot --headless --script
extends SceneTree

func _init():
    print("Generating Map programmatically...")
    var root = CSGCombiner3D.new()
    root.name = "MapRoot"
    root.use_collision = true
    
    # 1. Base Geometry
    var floor = CSGBox3D.new()
    floor.name = "Floor"
    floor.size = Vector3(36, 0.5, 36)
    floor.position = Vector3(0, -0.25, 0)
    root.add_child(floor)
    floor.owner = root
    
    # Outer Shell Walls
    var top_wall = CSGBox3D.new()
    top_wall.name = "TopWall"
    top_wall.size = Vector3(36, 3, 0.5)
    top_wall.position = Vector3(0, 1.5, -17.75)
    root.add_child(top_wall)
    top_wall.owner = root
    
    var bot_wall = CSGBox3D.new()
    bot_wall.name = "BottomWall"
    bot_wall.size = Vector3(36, 3, 0.5)
    bot_wall.position = Vector3(0, 1.5, 17.75)
    root.add_child(bot_wall)
    bot_wall.owner = root
    
    var left_wall = CSGBox3D.new()
    left_wall.name = "LeftWall"
    left_wall.size = Vector3(0.5, 3, 35)
    left_wall.position = Vector3(-17.75, 1.5, 0)
    root.add_child(left_wall)
    left_wall.owner = root
    
    var right_wall = CSGBox3D.new()
    right_wall.name = "RightWall"
    right_wall.size = Vector3(0.5, 3, 35)
    right_wall.position = Vector3(17.75, 1.5, 0)
    root.add_child(right_wall)
    right_wall.owner = root
    
    # Inner blocks and subtractions...
    _create_room_block(root, "TopLeft", Vector3(-9, 1.5, -9), Vector3(1, 0, 0), Vector3(0, 0, 1))
    _create_room_block(root, "TopRight", Vector3(9, 1.5, -9), Vector3(-1, 0, 0), Vector3(0, 0, 1))
    _create_room_block(root, "BottomLeft", Vector3(-9, 1.5, 9), Vector3(1, 0, 0), Vector3(0, 0, -1))
    _create_room_block(root, "BottomRight", Vector3(9, 1.5, 9), Vector3(-1, 0, 0), Vector3(0, 0, -1))
    
    var packed = PackedScene.new()
    var result = packed.pack(root)
    if result == OK:
        var err = ResourceSaver.save(packed, "res://scenes/maps/fps_blockout.tscn")
        if err == OK:
            print("Map saved successfully to res://scenes/maps/fps_blockout.tscn")
        else:
            print("Error saving map: ", err)
    else:
        print("Error packing scene: ", result)
        
    quit()

func _create_room_block(root: CSGCombiner3D, block_name: String, pos: Vector3, door_horizontal_dir: Vector3, door_vertical_dir: Vector3):
    var block = CSGBox3D.new()
    block.name = block_name + "Block"
    block.size = Vector3(10, 3, 10)
    block.position = pos
    root.add_child(block)
    block.owner = root
    
    var room = CSGBox3D.new()
    room.name = block_name + "Room"
    room.operation = CSGShape3D.OPERATION_SUBTRACTION
    room.size = Vector3(6, 3, 6)
    room.position = pos
    root.add_child(room)
    room.owner = root
    
    var door_h = CSGBox3D.new()
    door_h.name = block_name + "DoorH"
    door_h.operation = CSGShape3D.OPERATION_SUBTRACTION
    # For horizontal doors (East/West), x is the long dimension going through the wall
    door_h.size = Vector3(3.0, 3.0, 2.5)
    door_h.position = pos + door_horizontal_dir * 3.75
    root.add_child(door_h)
    door_h.owner = root
    
    var door_v = CSGBox3D.new()
    door_v.name = block_name + "DoorV"
    door_v.operation = CSGShape3D.OPERATION_SUBTRACTION
    # For vertical doors (North/South), z is the long dimension going through the wall
    door_v.size = Vector3(2.5, 3.0, 3.0)
    door_v.position = pos + door_vertical_dir * 3.75
    root.add_child(door_v)
    door_v.owner = root