class_name TileManager
extends Node

var active_tiles: Dictionary = {}  # location: Tile
var board_flow: FlowContainer
var game: ChessGame
const portalString : String = "UuVvWwXxYyZz"
const PortalTile = preload("res://Systems/Tiles/Portal.gd")
func _init(flow: FlowContainer = null, chess_game: ChessGame = null) -> void:
    if flow:
        initialize(flow)
    
    game = chess_game

func initialize(flow: FlowContainer) -> void:
    board_flow = flow
    clear_tiles()

func add_tile(location: String, tile: Tile) -> void:
    if !board_flow:
        push_error("TileManager not initialized with board_flow")
        return
        
    var container = board_flow.get_node_or_null(location) as PieceContainer
    if !container:
        push_error("Container not found at location: " + location)
        return
        
    # Remove any existing tile
    remove_tile(location)
    
    tile.game = game
    # Add new tile
    active_tiles[location] = tile
    tile.effect_expired.connect(func(): remove_tile(location))
    tile.update_appearance()

func remove_tile(location: String) -> void:
    if active_tiles.has(location):
        var tile = active_tiles[location]
        tile.restore_base_appearance()
        active_tiles.erase(location)

func get_tile(location: String) -> Tile:
    return active_tiles.get(location, null)

func update_tile_durations() -> void:
    if active_tiles.is_empty():
        return
        
    var expired_locations = []
    var locations = active_tiles.keys()
    for location in locations:
        var tile = active_tiles[location]
        tile.update_duration()
        if !tile.is_effect_active():
            expired_locations.append(location)
    
    for location in expired_locations:
        remove_tile(location)

func apply_alltile_effects() -> void:
    if active_tiles.is_empty():
        return
        
    for location in active_tiles:
        var tile = active_tiles[location]
        var container = board_flow.get_node(location) as PieceContainer
        if container && container.has_piece():
            var piece = container.get_piece()
            if tile.can_affect_piece(piece):
                tile.apply_effect(piece)

func apply_tile_effect(location: String) -> void:
    if active_tiles.is_empty() or !active_tiles.has(location):
        return
        
    var tile = active_tiles[location]
    var container = board_flow.get_node(location) as PieceContainer
    if container && container.has_piece():
        var piece = container.get_piece()
        if tile.can_affect_piece(piece):
            tile.apply_effect(piece)

func clear_tiles() -> void:
    var locations = active_tiles.keys()
    for location in locations:
        remove_tile(location)

# Function to place random game tiles at the start of each match
func place_random_game_tiles(num_tiles: int = 5) -> void:
    if !board_flow:
        push_error("TileManager not initialized with board_flow")
        return
        
    var fen_parts = game.FEN.split(" ")
    var rows = fen_parts[0].split("/")
    var available_positions = []
    
    # Find empty rows from FEN
    for y in range(rows.size()):
        var row = rows[y]
        # If row is all empty squares (like "8" in standard chess)
        if row.is_valid_int() && int(row) == game.boardXSize:
            var board_y = (game.boardYSize - 1) - y  # Flip y coordinate to match board orientation
            # Add all positions in this empty row
            for x in range(game.boardXSize):
                if active_tiles.has(str(x) + "-" + str(board_y)):
                    continue
                available_positions.append(str(x) + "-" + str(board_y))
                
    available_positions.shuffle()

    var skipNext = false;

    # var wall: Tile
    # var p = '0-2'
    # var cntr = board_flow.get_node(p) as PieceContainer
    # var w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # wall = WallTile.new(cntr, w, -1)
    # add_tile(p, wall)
    # # p = '1-2'
    # # cntr = board_flow.get_node(p) as PieceContainer
    # # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # # wall = WallTile.new(cntr, w, -1)
    # # add_tile(p, wall)
    # p = '2-2'
    # cntr = board_flow.get_node(p) as PieceContainer
    # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # wall = WallTile.new(cntr, w, -1)
    # add_tile(p, wall)
    # p = '3-2'
    # cntr = board_flow.get_node(p) as PieceContainer
    # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # wall = WallTile.new(cntr, w, -1)
    # add_tile(p, wall)
    # p = '4-2'
    # cntr = board_flow.get_node(p) as PieceContainer
    # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # wall = WallTile.new(cntr, w, -1)
    # add_tile(p, wall)
    # p = '5-2'
    # cntr = board_flow.get_node(p) as PieceContainer
    # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # wall = WallTile.new(cntr, w, -1)
    # add_tile(p, wall)
    # # p = '6-2'
    # # cntr = board_flow.get_node(p) as PieceContainer
    # # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # # wall = WallTile.new(cntr, w, -1)
    # # add_tile(p, wall)
    # p = '7-2'
    # cntr = board_flow.get_node(p) as PieceContainer
    # w = (int(p.split("-")[0]) + int(p.split("-")[1])) % 2 == 0
    # wall = DoubleWallTile.new(cntr, w, -1)
    # add_tile(p, wall)

    # Skip over an iteration for a paired tile
    for i in range(min(num_tiles, available_positions.size())):
        if skipNext:
            skipNext = false
            continue
        var pos = available_positions[i]
        var container = board_flow.get_node(pos) as PieceContainer
        if !container:
            continue
            
        var is_white = (int(pos.split("-")[0]) + int(pos.split("-")[1])) % 2 == 0

        # Randomly choose a tile type
        var rng = RandomNumberGenerator.new()
        rng.randomize()
        var tile_type = rng.randi() % 3
        # tile_type = 4; 
        # remove the set 2
        var tile: Tile
        match tile_type:
            0:  # Wall tile
                tile = WallTile.new(container, is_white, -1)
                add_tile(pos, tile)
                continue
            1:  # Double Wall
                # tile = DoubleWallTile.new(container, is_white, -1)
                # add_tile(pos, tile)
                continue
            2:  # Portal pair
                # Only create portal pair if this isn't the last tile
                if i < available_positions.size() - 1:
                    var next_pos = available_positions[i + 1]
                    var next_container = board_flow.get_node(next_pos) as PieceContainer
                    if next_container:
                        place_portal(pos, i, available_positions, container, is_white)
                        skipNext = true
                else:
                    # If we can't make a pair, fall back to a wall tile
                    tile = WallTile.new(container, is_white, -1)
                    add_tile(pos, tile)


func place_portal(pos: String = "", i: int = 0, available_positions: Array = [], container: PieceContainer = null, is_white: bool = false) -> void:
    var next_pos = available_positions[i + 1]
    var next_container = board_flow.get_node(next_pos) as PieceContainer
    if next_container:
        var next_is_white = (int(next_pos.split("-")[0]) + int(next_pos.split("-")[1])) % 2 == 0
        
        # Create portal pair with alternating blue/orange colors
        # var portal_color = Color.ORANGE if (i % 2 == 0) else Color.BLUE
        var portals = PortalTile.create_portal_pair(
            container, is_white,
            next_container, next_is_white,
            -1,  # permanent duration
            i,   # pair id
            Color.ORANGE,
            Color.BLUE
        )
        
        # Add both portals
        add_tile(pos, portals[0])
        add_tile(next_pos, portals[1])



func place_portal_pair(pos: String = "", next_pos: String = "", i: int = 0) -> void:
    var container = board_flow.get_node(pos) as PieceContainer
    var next_container = board_flow.get_node(next_pos) as PieceContainer
    if next_container:
        var is_white = (int(pos.split("-")[0]) + int(pos.split("-")[1])) % 2 == 0
        var next_is_white = (int(next_pos.split("-")[0]) + int(next_pos.split("-")[1])) % 2 == 0
        
        # Create portal pair with alternating blue/orange colors
        # var portal_color = Color.ORANGE if (i % 2 == 0) else Color.BLUE
        var portals = PortalTile.create_portal_pair(
            container, is_white,
            next_container, next_is_white,
            -1,  # permanent duration
            i,   # pair id
            Color.ORANGE,
            Color.BLUE
        )
        
        # Add both portals
        add_tile(pos, portals[0])
        add_tile(next_pos, portals[1])