import os

# ----------------------------
# Configuration
# ----------------------------

src_dir = "datasets/visiope/test/labels"
dest_dir = "datasets/_unified/test/labels"

os.makedirs(dest_dir, exist_ok=True)

# Reference class order you want to follow
"""[
'w_pawn','w_knight','w_bishop','w_rook','w_queen','w_king',
'b_pawn','b_knight','b_bishop','b_rook','b_queen','b_king'
]"""

reference_classes = [
    'w_pawn','w_knight','w_bishop','w_rook','w_queen','w_king',
    'b_pawn','b_knight','b_bishop','b_rook','b_queen','b_king'
]

# Current class order in your dataset (change this to match your dataset!)
current_classes = ['bishop', 'black-bishop', 'black-king', 'black-knight', 'black-pawn', 'black-queen', 'black-rook',
        'white-bishop', 'white-king', 'white-knight', 'white-pawn', 'white-queen', 'white-rook']

# ----------------------------
# Build index mapping
# ----------------------------
index_map = {current_classes.index(cls): reference_classes.index(cls) for cls in current_classes}

# ----------------------------
# Process each label file
# ----------------------------

count = 0
for filename in os.listdir(src_dir):
    if filename.endswith(".txt"):
        input_path = os.path.join(src_dir, filename)
        output_path = os.path.join(dest_dir, filename)

        with open(input_path, "r") as f:
            lines = f.readlines()

        new_lines = []
        for line in lines:
            parts = line.strip().split()
            old_idx = int(parts[0])
            new_idx = index_map[old_idx]
            new_lines.append(" ".join([str(new_idx)] + parts[1:]))

        with open(output_path, "w") as f:
            f.write("\n".join(new_lines))

        if count%100 == 0:
            print(count)
        count += 1

print(f"All labels remapped and saved to '{dest_dir}'")